Maya Hioki
| Faculty of Health Care and Medical Sports,Department of Rehabilitation,Physical Therapy Major | Associate Professor |
| Faculty of Health Care and Medical Sports,Department of Physical Therapy | Associate Professor |
Last Updated :2025/11/15
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Paper
- Time spent in moderate‑ to vigorous‑intensity physical activity is associated with lower limb muscle thickness in collegiate healthy young women without regular exercise habits
Miho Anzai; Maya Hioki; Maria Sawa; Hitoshi Takahashi; Ryoma Michishita
Medicine International, 30 Apr. 2025 - Effect of electromyostimulation training on intramuscular fat accumulation determined by ultrasonography in older adults
Maya Hioki; Hiroko Takahashi; Akira Saito; Mizuka Imai; Hideki Yasuda
European Journal of Applied Physiology, Feb. 2023 - Sex difference in soccer instep kicking
Tsuyoshi Iitake; Maya Hioki; Hitoshi Takahashi; Hiroyuki Nunome
Journal of Sports Sciences, 21 Oct. 2022 - Differences in lower leg kinetics of soccer instep kicking between female and male players.
Tsuyoshi Iitake; Maya Hioki; Hitoshi Takahashi; Hiroyuki Nunome
Sports biomechanics, 20 Oct. 2022
We aimed to clarify the difference in lower leg segment kinetics of soccer instep kicking between female and male players. Instep kicking motions of seven female and seven male university soccer players were captured at 500 Hz. Lower leg angular velocity, knee joint moment and the interaction moment acting on the lower leg were calculated. Discrete variables were compared using two sample-t-test, and statistical parametric mapping were used to compare the time-series changes between the two groups. Although female players maintained a comparable magnitude of lower leg angular velocity, they exhibited significantly lower knee extension moment in the latter part of kicking and significantly smaller forward angular impulse due to that moment. In contrast, female players were found to have a comparable magnitude of angular impulse due to forward component of interaction moment to that of male players. Eventually, female players come to have significantly larger ratio of angular impulses (forward interaction moment/knee extension moment) than male players. It can be considered that the forward component of interaction moment acting on the lower leg of female players may compensate their reduced exertion of knee extension moment, thereby achieving a comparable lower leg angular velocity to that of male players. - Relationship between adiponectin and intramuscular fat content determined by ultrasonography in older adults
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
PLOS ONE, 04 Jan. 2022
Age-associated intramuscular adipose tissue (IntraMAT) deposition induces the development of insulin resistance and metabolic syndrome. However, the relationship between IntraMAT and biochemical parameters in older adults remains unclear. The purpose of this study, therefore, was to elucidate the relationship between adiponectin and echo intensity–estimated IntraMAT using ultrasonography in normal-weight older adults (men 9, women 13) and examine biochemical parameters. Blood tests were performed to determine fasting levels of glucose, insulin, hemoglobin A1c, total cholesterol (Total-C), high-density-lipoprotein cholesterol, low-density-lipoprotein cholesterol (LDL-C), free fatty acid, triglycerides (TGs), adiponectin, leptin, high-sensitivity C-reactive protein, and high-sensitivity tumor necrosis factor, and homoeostasis model assessment index of insulin resistance (HOMA-IR). Mean gray-scale echo intensity was calculated as the IntraMAT index of the vastus lateralis. Waist circumference was measured at the level of the navel as the visceral adipose tissue (VAT) index. Echo intensity was significantly inversely correlated with adiponectin or LDL-C, and that was significantly positively correlated with TG. Adiponectin level was inversely correlated with waist circumference. Partial correlation analysis with waist circumference as the control variable revealed that adiponectin was inversely correlated with echo intensity, independent of waist circumference, whereas no such correlation was observed after controlling for LDL-C and TG levels. When biochemical parameters were grouped in the principal component analysis, among men, Total-C, insulin, and HOMA-IR or hemoglobin A1c, and high-sensitivity tumor necrosis factor–alpha were grouped with the same distribution for factors 1 and 2. Among women, glucose, insulin, HOMA-IR, and Total-C or TGs were grouped with the same distribution for factors 1 and 2. These data suggest that adiponectin level is related to IntraMAT content, independent of VAT in normal-weight older adults. The dynamics of adiponectin might not be similar to those of other circulating biochemical parameters in older men and women. - Effect of electromyostimulation on intramyocellular lipids of the vastus lateralis in older adults: a randomized controlled trial.
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Hideyuki Takahashi; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
BMC musculoskeletal disorders, 22 Jun. 2021
BACKGROUND: Excessive intramyocellular lipid (IMCL) accumulation is a primary cause of skeletal muscle insulin resistance, especially in older adults, and interventions that reduce IMCL contents are important to improve insulin sensitivity. Electromyostimulation (EMS)-induced changes in IMCL content in older adults remain unknown. The purpose of this study was to clarify the effects of a single bout of EMS on the IMCL content of the vastus lateralis muscle in older adults. METHODS: Twenty-two physically active, non-obese older men and women were randomly assigned to an EMS intervention group (69.0 ± 5.2 years, n = 12) or a control group (68.4 ± 3.5 years, n = 10). EMS was applied to the vastus lateralis (7 s on and 7 s off) for 30 min; control participants sat quietly for 30 min. IMCL content within the vastus lateralis was quantified with 1H-magnetic resonance spectroscopy (n = 7 per group). Fasting plasma glucose and insulin values were determined from blood samples collected before and after the EMS intervention. RESULTS: EMS induced a significant reduction in plasma glucose (93.1 ± 9.6 to 89.5 ± 9.1 mg/dL, p < 0.01), but not IMCL content (15.7 ± 15.7 to 15.8 ± 13.1 mmol/kg wet weight, p = 0.49) or insulin (5.4 ± 2.4 to 4.7 ± 2.7 μIU/mL, p = 0.18). In the control group, no changes in IMCL content in the vastus lateralis was observed after prolonged quiet sitting. CONCLUSION: EMS intervention for 30 min induces changes in plasma glucose, but no changes in IMCL content in older adults. TRIAL REGISTRATION: University hospital Medical Information Network (UMIN) Center ID: UMIN000020126 . Retrospectively registered on December 222,015. https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000023242. - Age-related changes in muscle volume and intramuscular fat content in quadriceps femoris and hamstrings.
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
Experimental gerontology, Apr. 2020
Whether age-related changes in muscle components differ between the quadriceps femoris and hamstrings has remained unclear. This study aimed to compare the muscle volume and echo intensity-estimated intramuscular adipose tissue content of the vastus lateralis (VL) and long head of biceps femoris (BF) muscles between young and older adults. Thirty young adults (n = 15; mean age, 21 years) and older adults (n = 15; mean age, 71 years) participated in this study. Magnetic resonance imaging was performed to determine muscle volumes of the VL and BF, and muscle volume normalized to body weight (muscle volume/weight). Mean gray-scale echo intensity was calculated as the intramuscular adipose tissue index. Muscle volume/weight and echo intensity were normalized using Z-scores in young and older adults. Muscle volume/weight was lower in older adults than in young adults, and lower in overall women than in men for VL (both p < 0.001) and BF (p < 0.01 and p < 0.05). Echo intensity was higher in older adults than in young adults for VL and BF (both p < 0.001), but did not differ between men and women. Z-score of muscle volume/weight was lower in older adults than in young adults for VL (-2.41 ± 1.22; p < 0.05), and Z-score of echo intensity was higher in older adults than in young adults for BF (2.00 ± 0.68; p < 0.05). These results suggest that muscle volume of quadriceps femoris was lower in older adults than in young adults, whereas intramuscular adipose tissue content of hamstrings was greater in older adults than in young adults. - Relationship between physical activity and intramyocellular lipid content is different between young and older adults.
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Hideyuki Takahashi; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
European journal of applied physiology, Jan. 2019
PURPOSE: Intramyocellular lipid (IMCL) is influenced by physical exercise; however, whether the habitual level of physical activity affects resting IMCL content remains unclear. The purpose of this study was to determine the relationship between physical activity levels and resting IMCL content in young and older adults. METHODS: In total, 15 nonobese young adults (21.0 ± 0.0 years) and 15 older adults (70.7 ± 3.8 years) were recruited. Time spent performing physical activities for 10 days was assessed using a three-dimensional ambulatory accelerometer, and intensity was categorized as light [< 3.0 metabolic equivalents (METs)], moderate (3.0-6.0 METs), or vigorous (> 6.0 METs). Physical activity level was calculated as the product of METs and time spent performing physical activities (MET h) at each intensity level. The IMCL content in the vastus lateralis was determined using 1H-magnetic resonance spectroscopy after overnight fasting. RESULTS: No significant differences in IMCL content were observed between young and older adults. Vigorous intensity physical activity (time and MET h) was significantly lower in older than young adults (p < 0.01); this difference was not observed for light and moderate intensity physical activity. Light intensity physical activity (time and MET h) was significantly and inversely correlated with IMCL content in young adults (r = - 0.59 and r = - 0.58; both p < 0.05), but not in older adults. CONCLUSIONS: These results suggest that daily light intensity physical activity reduces resting IMCL content in young adults, whereas no significant relationship was seen between daily physical activity and resting IMCL content in older adults. - Three-dimensional comparison of intramuscular fat content between young and old adults.
Akito Yoshiko; Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
BMC medical imaging, 10 Feb. 2017
BACKGROUND: Fat infiltration within skeletal muscle is known as intramuscular fat (IMF), which increases with aging. Studies have assessed IMF content, using the mid-thigh as a representative location. However, three-dimensional IMF distribution is not well understood. The aim of this study was to compare the IMF content in young and old adults by assessing its distribution along the length of the thigh. METHODS: Consecutive transaxial images of the right thighs in 15 young (age, 21.0 ± 0.4) and 15 old (age, 70.7 ± 3.8) were obtained by magnetic resonance imaging. We measured IMF cross-sectional area (CSA), skeletal muscle CSA and calculated volume- and CSA-based IMF content for the quadriceps femoris (QF), hamstring (HM) and adductor (AD). CSA-based calculations were performed at every 10% of femur length (Lf), with 0% Lf and 100% Lf indicating the proximal and distal ends of femur. RESULTS: IMF CSAs along the length of the thigh were similar in both age groups. In contrast, skeletal muscle CSAs in all three muscle groups were significantly lower in old adults than in young adults (variation: -15.2 to -1.6 cm2, P < 0.05). Thus, in volume-based measurements, the older adults had higher IMF contents than the younger adults (9.5% to 14.3% vs. 4.8% to 8.6%, respectively; P < 0.05). However, such age-dependent differences were not observed at the mid-thigh in the QF and AD. CONCLUSION: The results demonstrated an age-related increase in IMF content-confirmed in areas of the thigh-primarily based on finding lower amounts of skeletal muscle mass in CSAs in the older adults. - Associations of intramyocellular lipid in vastus lateralis and biceps femoris with blood free fatty acid and muscle strength differ between young and elderly adults.
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Hideyuki Takahashi; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
Clinical physiology and functional imaging, Nov. 2016
The present study aimed to determine relationships between intramyocellular lipid and biochemical profiles or muscle strength in elderly (n = 15; mean age, 71 years) and young (n = 15; mean age, 21 years) male and female adults. Levels of intramyocellular lipid in the vastus lateralis and biceps femoris muscles were determined using 1 H-magnetic resonance spectroscopy. Fasting blood samples were collected to measure levels of glucose, insulin, haemoglobin A1c, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, free fatty acid, triglyceride, adiponectin, and high-sensitivity C-reactive protein. Muscle strength was assessed as maximal voluntary contraction during isometric knee extension. Muscle cross-sectional area in the vastus lateralis was measured using magnetic resonance imaging. Specific force (N cm-2 ) indicating force generation capacity was calculated as muscle strength (N) divided by the muscle cross-sectional area of the vastus lateralis (cm2 ). The intramyocellular lipid content was similar in both muscles in both groups. The intramyocellular lipid content in the biceps femoris significantly correlated with serum free fatty acid levels (r = 0·62, P<0·05), and that in the vastus lateralis significantly and inversely correlated with specific force (r = -0·58, P<0·05) in the young, but not in the elderly adults. The relationship between the intramyocellular lipid content in the thigh muscles and biochemical profiles, or specific force differed between elderly and young adults. Age-associated changes in morphology, function and metabolic factors apparently influence intramyocellular lipid metabolism in the thigh muscles. - Intramuscular adipose tissue determined by T1-weighted MRI at 3T primarily reflects extramyocellular lipids.
Hiroshi Akima; Maya Hioki; Akito Yoshiko; Teruhiko Koike; Hisataka Sakakibara; Hideyuki Takahashi; Yoshiharu Oshida
Magnetic resonance imaging, May 2016
PURPOSE: The purpose of this study was to assess relationships between intramuscular adipose tissue (IntraMAT) content determined by MRI and intramyocellular lipids (IMCL) and extramyocellular lipids (EMCL) determined by (1)H magnetic resonance spectroscopy ((1)H MRS) or echo intensity determined by B-mode ultrasonography of human skeletal muscles. METHODS: Thirty young and elderly men and women were included. T1-weighted MRI was taken from the right mid-thigh to measure IntraMAT content of the vastus lateralis (VL) and biceps femoris (BF) using a histogram shape-based thresholding technique. IMCL and EMCL were measured from the VL and BF at the right mid-thigh using (1)H MRS. Ultrasonographic images were taken from the VL and BF of the right mid-thigh to measure echo intensity based on gray-scale level for quantitative analysis. RESULTS: There was a significant correlation between IntraMAT content by MRI and EMCL of the VL and BF (VL, r=0.506, P<0.01; BF, r=0.591, P<0.001) and between echo intensity and EMCL of the VL and BF (VL, r=0.485, P<0.05; BF, r=0.648, P<0.01). IntraMAT content was also significantly correlated with echo intensity of the VL and BF (VL, r=0.404, P<0.05; BF, r=0.493, P<0.01). CONCLUSION: Our study suggests that IntraMAT content determined by T1-weighted MRI at 3T primarily reflects extramyocellular lipids, not intramyocellular lipids, in human skeletal muscles. - Skeletal muscle size is a major predictor of intramuscular fat content regardless of age.
Hiroshi Akima; Akito Yoshiko; Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Hisataka Sakakibara; Yoshiharu Oshida
European journal of applied physiology, Aug. 2015
PURPOSE: Skeletal muscles of older individuals have a larger amount of intramuscular adipose tissue (IntraMAT) than those of younger individuals. It is not understood how aging affects the IntraMAT content of individual muscles of the thigh. We assessed the relationship between IntraMAT content and skeletal muscle cross-sectional area (CSA), subcutaneous adipose tissue CSA, biochemical blood profiles, and physical activity. METHODS: Fifteen older (70.7 ± 3.8 years) and 15 younger (20.9 ± 0.3 years) men and women participated in this study. Magnetic resonance imaging of the right thigh was taken to measure IntraMAT content and skeletal muscle CSA for the quadriceps femoris (QF), hamstrings (HM), adductor (AD) muscle groups and subcutaneous adipose tissue CSA of the thigh. Fasting blood samples were collected to measure plasma lipids, adiponectin, and HbA1c levels. RESULTS: IntraMAT content in QF, HM, and AD for the Older group was significantly higher than in the Younger group. However, skeletal muscle CSA normalized by body weight (skeletal muscle CSA/bw) in the QF (P < 0.001) and total thigh (P < 0.01) were significantly lower in the Older group compared with the Younger group.There were no significant differences in HM and AD. Stepwise regression analysis with IntraMAT content as a dependent variable revealed that skeletal muscle CSA/bw of the thigh was the only predictive variable for IntraMAT content in Older and Younger groups. CONCLUSION: These results suggest that skeletal muscle size could be a major determinant of IntraMAT content regardless of age. - Estimation of muscle atrophy based on muscle thickness in knee surgery patients.
Maya Hioki; Takemitsu Furukawa; Hiroshi Akima
Clinical physiology and functional imaging, May 2014
The purpose of this study was to establish an accurate estimation of muscle atrophy in the quadriceps femoris (QF) muscle group. Eighteen individuals who underwent meniscectomy participated in the study (nine men and nine women, mean age 44·4 years). Both operated and non-operated thighs were scanned by magnetic resonance imaging to determine the volume and thickness of the QF muscle group. Muscle volume was estimated using eleven axial images, and muscle thickness was measured at the anterior, lateral and medial regions of the proximal, mid- and distal thigh, respectively. A stepwise linear regression analysis was performed to obtain the relationship between the difference in muscle volume and the difference in muscle thickness between operated and non-operated limbs. There was no significant difference in muscle volume of the QF between operated (806·6 ± 220·0 cm(3) ) and non-operated (913·7 ± 241·5 cm(3) ) limbs. Based on the stepwise linear regression analysis, the difference in muscle volume was significantly correlated with the difference in muscle thickness at the anterior proximal thigh and lateral mid-thigh and anterior mid-thigh (R = 0·93, P<0·01). In conclusion, the difference in muscle volume between operated and non-operated limbs can be estimated accurately by measuring muscle thickness of the QF at three sites: the anterior proximal thigh, the lateral mid-thigh and anterior mid-thigh. Muscle thickness can be measured easily using imaging techniques such as ultrasonography. We propose that this method provides an easy and accurate estimate of knee surgery-induced muscle atrophy in clinical medicine. - Relationship between intramyocellular lipid and blood biochemistry in young and elderly adult
Maya Hioki
Nagoya Journal of Health, Physical Fitness & Sports, Apr. 2014 - The effect of a short-term resistive training on functional capacity morphology for elderly individuals
Aya Tomita; Akira Saito; Ryosuke Ando; Akito Yoshiko; Maya Hioki; Hiroshi Akima
Nagoya Journal of Health, Physical Fitness & Sports, Apr. 2014 - The effect of short-term resistive training on muscle function and morphology for elderly men and women
Akito Yoshiko; Akira Saito; Maya Hioki; Ryosuke Ando; Hiroshi AKima
Nagoya Journal of Health, Physical Fitness & Sports, Sep. 2013 - Relationship between estimated intramuscular fat index and function or morphology in skeletal muscles in elderly women
Maya Hioki; Kiyoshi Shimaoka; Yuko Shibata; Hiroshi Akima
Journal of Training Science for Exercise and Sport, Apr. 2012 - Effects of aging and inactivity on muscle in older adult and arthroscopic knee surgery patient-Evaluation of atrophied muscle morphology-
Maya Hioki
BULLETIN OF THE GRADUATE SCHOOL OF EDUCATION AND HUMAN DEVELOPMENT, Mar. 2011 - Effect of arthroscopic partial meniscectomy on the function of quadriceps femoris.
Hiroshi Akima; Maya Hioki; Takemitsu Furukawa
Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, Nov. 2008
The purpose of this study was to investigate the functional characteristics of the quadriceps femoris (QF) muscle group after the effect of presurgery disuse, surgery, and postsurgery disuse using surface electromyography and muscle functional magnetic resonance imaging (mfMRI). A total of 20 individuals (11 men and nine women) who underwent arthroscopic knee surgery participated in this study. Maximum voluntary contraction (MVC) of the QF muscle group was measured in the legs that received surgery and those that did not. To acquire the functional properties of the QF muscle group, electromyographic (EMG) activity during repetitive dynamic knee extension exercises (five sets of ten repetitions; load 30% MVC) and mfMRI before and after the exercises were obtained. EMG activity was evaluated in three phases depending on the knee joint angle: concentric and eccentric phases (Con/Ecc), concentric (Con) phase only, and eccentric (Ecc) phase only. The mean MVC of the legs that received surgery was significantly lower (22%) than that of the legs that did not. Regarding the EMG activity during the Con/Ecc and Con phases, there were significant leg and set effects but no significant leg-by-set interactions; however, during the Ecc phase, there was a significant set effect. Regarding changes in the mfMRI signal, leg and exercise had significant effects, but there was no significant leg-by-exercise interaction. These results suggest that presurgery disuse, partial meniscectomy, and postsurgery disuse induce dysfunction of the QF muscle group that is dependent on a decrease in MVC. Thus, these patients need maximal muscle-force improvement for effective rehabilitation after surgery. - An injury survey of American Football players in Tokai Football Association
Maya Hioki; Yasuo Ikegami; Hitoshi Makino
Tokai Annual Report of Health and Physical Education, Dec. 2003
MISC
- Relationship between Intramuscular Fat and Muscle Mass Change with Aging
Yoshiharu Oshida; Hiroshi Akima; Teruhiko Koike; Kiyoshi Shimaoka; Maya Hioki
DESCENTE SPORTS SCIENCE, Jun. 2013, [Reviewed]
Lectures, oral presentations, etc.
- In vivo identification of MRS signals and metabolite detection in human skeletal muscle at 7T
Maya Hioki; Masahiro Umeda; Yuko Kawai; Masaki Fukunaga
Frontier of Spin Life sciences, 02 Sep. 2025 - In vivo skeletal muscle lipids in the female endurance athlete runners during submaximal exercise and recovery: assessment by 1H-MRS at 7T
Maya Hioki; Masahiro Umeda; Yuko Kawai; Masaki Fukunaga
JSMRM2025, 31 Aug. 2025 - In vivo detection of metabolites in human skeletal muscle using 1H-MRS at 7 T
Maya Hioki; Masahiro Umeda; Masaki Fukunaga
ISMRM Workshop on MR Spectroscopy, 15 Oct. 2024 - In vivo skeletal muscle lipids during submaximal exercise and recovery: assessment by 1H-MRS at 3T
Maya Hioki; Masahiro Umeda; Masaki Fukunaga
The 52nd Annual Meeting of the Japanese Society for Magnetic Resonance in Medicine, 21 Sep. 2024 - In vivo detection of taurine methylene in human skeletal muscle by 1H-MRS at 7T
Maya Hioki; Masahiro Umeda; Masaki Fukunaga
The 9th Annual Scientific Meeting of the ISMRM Japanese Chapter, 21 Sep. 2024 - Improvement of the accuracy of lipid analysis of 7T 1H-MRS in skeletal muscle by J-split-weighted peak fitting
Masahiro Umeda; Maya Hioki; Masaki Fukunaga
The 51st Annual Meeting of the Japanese Society for Magnetic Resonance in Medicine, 22 Sep. 2023 - In vivo human 7 T 1H-MRS detected intramyocellular fatty acids
Maya Hioki; Masahiro Umeda; Masaki Fukunaga
The 8th Annual Scientific Meeting of the ISMRM Japanese Chapter, 23 Sep. 2023 - In vivo determination of human skeletal muscle fatty acids by 1H-MRS at 7 tesla
Maya Hioki; Masahiro Umeda; Masaki Fukunaga
American College of Sports Medicine, 02 Jun. 2023 - 1H-MRS analysis of fatty acid in skeletal muscle at 7T
Maya Hioki; Masahiro Umeda; Masaki Fukunaga
77th Japanese Society of Physical Fitness and Sports Medicine 2022, 23 Sep. 2022 - 動力学からみたサッカーインステップキック動作における性差の特徴
18 Jun. 2022 - Effect of electromyostimulation training on intramuscular fat accumulation and blood lipids in the older adults
Maya Hioki; Hiroko Takahashi; Akira Saito; Mizuka Imai; Hideki Yasuda
American College of Sports Medicine, 31 May 2022 - Effect of electromyostimulation training on intramuscular fat index and blood biochemistry in the older adults
Maya Hioki; Hiroko Takahashi; Akira Saito; Mizuka Imai; Hideki Yasuda
76th Japanese Society of Physical Fitness and Sports Medicine 2021, 18 Sep. 2021 - Differences in lower leg kinetic of soccer instep kicking between female and male players
Tsuyoshi Iitake; Maya Hioki; Hitoshi Takahashi; Hiroyuki Nunome
39th International Society of Biomechanics in Sport Conference, 05 Sep. 2021 - Gender difference in soccer instep kicking
Tsuyoshi Iitake; Maya Hioki; Hitoshi Takahashi; Hiroyuki Nunome
19 Sep. 2020 - 加齢に伴い蓄積された骨格筋細胞内・外脂質の同定とその応用的研究
30 Jan. 2020 - Evaluation of muscle morphology of the right and left sides of the thigh and upper limbs, and performance test in wheelchair players
Maya Hioki; Yoshiko Matsushima; Shusaku Kume
75th Japanese Society of Physical Fitness and Sports Medicine 2021, 21 Sep. 2019 - Electromyostimulation induced changes in intramyocellular lipid of vastus lateralis in older adults
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Hideyuki Takahashi; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
The 66th Annual Meeting of American College of Sports Medicine (Orlando, FL, USA), (submitted for presentation), Med Sci Sports Exercise, 30 May 2019 - Early change in intramyocellular lipid contents in vastus lateralis by electromyostimulation in middle-age and older adults
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Hideyuki Takahashi; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
73th Japanese Society of Physical Fitness and Sports Medicine 2018, 08 Sep. 2018 - Adiponectin is inversely associated with estimated intramuscular fat index in middle-aged and elderly adults
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
The 64th Annual Meeting of American College of Sports Medicine (Denver, CO, USA), (submitted for presentation), Med Sci Sports Exerc 49(5 Suppl ):S177, 31 May 2017 - 中高齢者男女における筋内脂肪とLDLコレステロール，アディポネクチンとの関係
23 Sep. 2016 - Relationship between intramyocellular lipid content and physical activity level in young and elderly human adults
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Hideyuki Takahashi; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
The 63th Annual Meeting of American College of Sports Medicine (Boston, MS, USA), (submitted for presentation), Med Sci Sports Exerc 48(5 Suppl 1):749, 03 Jun. 2016 - Relationship between Intramuscular fat and inramyocellular lipid or extramyocellular lipid by using ultrasonography and MRI
Hiroshi Akima; Maya Hioki; Akito Yoshiko; Teruhiko Koike; Hisataka Sakakibara; Hideyuki Takahashi; Yoshiharu Oshida
70th Japanese Society of Physical Fitness and Sports Medicine, 18 Sep. 2015 - Relationship between intramyocellular lipid and physical activity in young and older adults
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Hideyuki Takahashi; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
70th Japanese Society of Physical Fitness and Sports Medicine, Sep. 2015 - The effect of a short-term resistive training on functional capacity and morphology for elderly individuals
Aya Tomita; Akira Saito; Ryosuke Ando; Akito Yoshiko; Maya Hioki; Hiroshi Akima
16 Mar. 2014 - Comparison of in the vastus lateralis and semitendinous of intramuscular fat of the young and older adults
Akito Yoshiko; Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
68th Japanese Society of Physical Fitness and Sports Medicine, 22 Sep. 2013 - Relationship between inramyocellular lipid in quadriceps femoris and muscle strength in the young and older adults
Maya Hioki; Nana Kanehira; Teruhiko Koike; Akira Saito; Hideyuki Takahashi; Kiyoshi Shimaoka; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
68th Japanese Society of Physical Fitness and Sports Medicine, 22 Sep. 2013 - Intramuscular fat content relate with skeletal muscle tissue in the older adults.
Hiroshi Akima; Akito Yoshiko; Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Hisataka Sakakibara; Yoshiharu Oshida
68th Japanese Society of Physical Fitness and Sports Medicine, 22 Sep. 2013 - Non-contractile components in adductors correlate with plasma triglyceride in the elderly but not the young
Hiroshi Akima; Akito Yoshiko; Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Hisataka Sakakibara; Yoshiharu Oshida
The 60th Annual Meeting of American College of Sports Medicine (Indianapolis, IN, USA), (submitted for presentation), Med Sci Sports Exercise, 29 May 2013 - Comparisons of non-contractile tissue in individual muscles of quadriceps femoris between young and old subjects
Akito Yoshiko; Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
The 60th Annual Meeting of American College of Sports Medicine (Indianapolis, IN, USA), (submitted for presentation), Med Sci Sports Exercise, 29 May 2013 - Comparison of intramyocellular lipid contents between antigravity and no-antigravity human skeletal muscles
Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Akito Yoshiko; Akira Saito; Hisataka Sakakibara; Hideyuki Takahashi; Yoshiharu Oshida; Hiroshi Akima
The 60th Annual Meeting of American College of Sports Medicine (Indianapolis, IN, USA), (submitted for presentation), Med Sci Sports Exercise, 29 May 2013 - Relationship between intramuscular fat and muscle cross-sectional area in the young and older adults
Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Akito Yoshiko; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
24 May 2013 - Relationship between inramyocellular lipid and HOMA-R differ between vastus lateralis and biceps femoris
Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Akito Yoshiko; Akira Saito; Hisataka Sakakibara; Hideyuki Takahashi; Yoshiharu Oshida; Hiroshi Akima
Journal of the Japan diabetes society, 18 May 2013 - The effect of short-resistive training on muscle function and morphology for elderly men and women
Yoshiko Akito; Akira Saito; Maya Hioki; Ryosuke Ando; Hiroshi Akima
16 Mar. 2013 - Comparison of intramuscular fat between thigh muscles
Akito Yoshiko; Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
67th Japanese Society of Physical Fitness and Sports Medicine, 16 Sep. 2012 - Relationship between intramyocellular lipid content in quadriceps femoris or hamstrings and biochemistry by 1H-MRS
Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Akito Yoshiko; Akira Saito; Hisataka Sakakibara; Hideyuki Takahashi; Yoshiharu Oshida; Hiroshi Akima
67th Japanese Society of Physical Fitness and Sports Medicine, 14 Sep. 2012 - Relationship between intramyocellular lipid in the quadriceps femoris or hamstrings and biochemistry
Maya Hioki; Nana Kanehira; Kiyoshi Shimaoka; Teruhiko Koike; Akira Saito; Hideyuki Takahashi; Hisataka Sakakibara; Yoshiharu Oshida; Hiroshi Akima
10 Aug. 2012 - Relationship between intramuscular fat and muscle function or morphology by aging and physical inactivity
Maya Hioki; Kiyoshi Shimaoka; Yuko Shibata; Hiroshi Akima
26 Nov. 2011 - Echo intensity as an index of intramuscular fat in elderly women evaluated by ultrasonography
Maya Hioki; Hiroshi Akima
The 57th Annual Meeting of American College of Sports Medicine (Baltimore, MD, USA), (submitted for presentation), 02 Jun. 2010 - Evaluation of thigh muscle morphology and strength after anterior cruciate ligament injury: case study
Maya Hioki; HIroshi Akima
64th Japanese Society of Physical Fitness and Sports Medicine, 18 Sep. 2009 - Establishment of accurate estimation of muscle atrophy based on muscle thickness in knee surgery patients
Maya HIoki; Takemitsu Furukawa; Hiroshi Akima
The 56th Annual Meeting of American College of Sports Medicine (Seattle, WA, USA), (submitted for presentation), Med Sci Sports Exercise, 30 May 2009 - Relationship between muscle thickness and muscle cross-sectional area at the site of the thigh muscles
Maya Hioki; Takemitsu Furukawa; Hiroshi Akima
63th Japanese Society of Physical Fitness and Sports Medicine, 19 Sep. 2008 - Examination of the validity of muscular atrophy evaluation by measuring the circumference
Maya Hioki; Hiroshi AKima
60th Japanese Society of Physical Fitness and Sports Medicine, 23 Sep. 2005 - EMG pattern during exercise in the meniscectomy patients
Maya Hioki; Hiroshi Akima
59th Japanese Society of Physical Fitness and Sports Medicine, 16 Sep. 2004 - An injury survey of American football players in Tokai football association
Maya Hioki; Yasuo Ikegami; Hitoshi Makino
Nov. 2002
Affiliated academic society
Research Themes
- 多角的MRS計測・解析システムの構築による骨格筋トータルエネルギー代謝動態の追跡
Apr. 2025 - Mar. 2028 - Chemical Shift Analysis of Methylene Chains in Fatty Acids Using 2D NMR with Enhanced Frequency Resolution
Oct. 2025 - Oct. 2026 - Exercise-induced changes in metabolites in skeletal muscle and elucidation of mechanism
Apr. 2024 - Mar. 2026 - Identification of intramyocellular fatty acids in human skeletal muscle and elucidation metabolic mechanisms by 7 T ultra-high field MRS
Early-Career Scientists
Teikyo Heisei University
Apr. 2022 - Mar. 2025 - 生体に含まれる脂質分析のための脂肪酸NMR情報の収集
Oct. 2021 - Mar. 2024 - Effect of electromyostimulation training on intramuscular fat index in the older adults
Grant-in-Aid for Early-Career Scientists
Teikyo Heisei University
01 Apr. 2018 - 31 Mar. 2022
The purpose of this study was to examine whether intramuscular fat index changes by electromyostimulation (EMS) training of the quadriceps femoris for 12 weeks (3 times/week) in older adults. Intramuscular fat index was evaluated by echo intensity of vastus lateralis and rectus femoris before and after EMS training. Blood samples were collected before and after EMS training for the plasma glucose and free fatty acid (FFA). EMS training did not significant change intramuscular fat index and plasma glucose or FFA. EMS training for 12 weeks may not change intramuscular fat index and blood biochemistry. - Comparison of intramyocellular lipid contents between antigravity and non-antigravity human skeletal muscles
Apr. 2012 - Jun. 2013 - Relationship between intramuscular fat and muscle mass change with aging
Apr. 2012 - Nov. 2012
Social Contribution Activities
■Achievement List
Lectures, oral presentations, etc.
- In vivo determination of human skeletal muscle fatty acids by 1H-MRS at 7 tesla
Maya Hioki, Masahiro Umeda, Masaki Fukunaga, American College of Sports Medicine, 02 Jun. 2023, 30 May 2023 - 02 Jun. 2023
Url - 1H-MRS analysis of fatty acid in skeletal muscle at 7T
Maya Hioki, Masahiro Umeda, Masaki Fukunaga, 77th Japanese Society of Physical Fitness and Sports Medicine 2022, 23 Sep. 2022, 21 Sep. 2022 - 23 Sep. 2022
Url - 18 Jun. 2022, 18 Jun. 2022 - 18 Jun. 2022
Url - Effect of electromyostimulation training on intramuscular fat index and blood biochemistry in the older adults
Maya Hioki, Hiroko Takahashi, Akira Saito, Mizuka Imai, Hideki Yasuda, Japanese Society of Physical Fitness and Sports Medicine, 10 Sep. 2021, 10 Sep. 2021 - 12 Sep. 2021, Not exist, Japan, Poster sessions
Url - Effect of electromyostimulation training on intramuscular fat accumulation and blood lipids in the older adults
Maya Hioki, Hiroko Takahashi, Akira Saito, Mizuka Imai, Hideki Yasuda, American College of Sports Medicine, 31 May 2022, 31 May 2022 - 04 Jun. 2022, United States
Url - Differences in lower leg kinetic of soccer instep kicking between female and male players
Tsuyoshi Iitake, Maya Hioki, Hitoshi Takahashi, Hiroyuki Nunome, 39th International Society of Biomechanics in Sport Conference, 05 Sep. 2021, 03 Sep. 2021 - 07 Sep. 2021, Not exist, Australia, International conferences, Poster sessions
Url - Gender difference in soccer instep kicking
Tsuyoshi Iitake;Maya Hioki;Hitoshi Takahashi;Hiroyuki Nunome, 19 Sep. 2020, 18 Sep. 2020 - 20 Sep. 2020, Not exist, Japan, Verbal presentations (general)
Url - 30 Jan. 2020, Not exist
Url - Evaluation of muscle morphology of the right and left sides of the thigh and upper limbs, and performance test in wheelchair players
Maya Hioki, Yoshiko Matsushima, Shusaku Kume, 21 Sep. 2019, 19 Sep. 2019 - 21 Sep. 2019, Japan, Domestic conferences, Poster sessions
Url - Comparison of skeletal muscle mass in the right and left sides of thighs and upper arms of wheelchair basketball players
Maya Hioki, Yoshiko Matsushima, Shusaku Kume, European College of Sport Science, 05 Jul. 2029, 30 Jun. 2020 - 05 Jul. 2020
Url - Electromyostimulation induced changes in intramyocellular lipid of vastus lateralis in older adults
Maya Hioki, Nana Kanehira, Teruhiko Koike, Akira Saito, Hideyuki Takahashi, Kiyoshi Shimaoka, Hisataka Sakakibara, Yoshiharu Oshida, Hiroshi Akima, The 66th Annual Meeting of American College of Sports Medicine (Orlando, FL, USA), (submitted for presentation), Med Sci Sports Exercise, 30 May 2019, 28 May 2019 - 01 Jun. 2019
Url - Early change in intramyocellular lipid contents in vastus lateralis by electromyostimulation in middle-age and older adults
Maya Hioki, Nana Kanehira, Teruhiko Koike, Akira Saito, Hideyuki Takahashi, Kiyoshi Shimaoka, Hisataka Sakakibara, Yoshiharu Oshida, Hiroshi Akima, Japanese Society of Physical Fitness and Sports Medicine, 08 Sep. 2018, 07 Sep. 2018 - 09 Sep. 2018
Url - Adiponectin is inversely associated with estimated intramuscular fat index in middle-aged and elderly adults
Maya Hioki, Nana Kanehira, Teruhiko Koike, Akira Saito, Kiyoshi Shimaoka, Hisataka Sakakibara, Yoshiharu Oshida, Hiroshi Akima, 第64回米国スポーツ医学会, 31 May 2017, 30 May 2017 - 03 Jun. 2017
Url - Relationship between intramuscular fat and LDL-cholesterol or adiponectin in the middle and older men and women
Maya Hioki;Nana Kanehira;Teruhiko Koike;Akira Saito;Kiyoshi Shimaoka;Hisataka Sakakibara;Yoshiharu Oshida;Hiroshi Akima, 23 Sep. 2016, 23 Sep. 2016 - 25 Sep. 2016
Url - Relationship between intramyocellular lipid content and physical activity level in young and elderly human adults
Maya Hioki, Nana Kanehira, Teruhiko Koike, Akira Saito, Hideyuki Takahashi, Kiyoshi Shimaoka, Hisataka Sakakibara, Yoshiharu Oshida, Hiroshi Akima, The 63th Annual Meeting of American College of Sports Medicine (Boston, MS, USA), (submitted for presentation), Med Sci Sports Exerc 48(5 Suppl 1):749, 03 Jun. 2016, 31 May 2016 - 04 Jun. 2016
Url - Relationship between intramyocellular lipid and physical activity in young and older adults
Maya Hioki, Nana Kanehira, Teruhiko Koike, Akira Saito, Hideyuki Takahashi, Kiyoshi Shimaoka, Hisataka Sakakibara, Yoshiharu Oshida, Hiroshi Akima, Japanese Society of Physical Fitness and Sports Medicine, 18 Sep. 2015, 18 Sep. 2015 - 20 Sep. 2015
Url - Relationship between Intramuscular fat and inramyocellular lipid or extramyocellular lipid by using ultrasonography and MRI
Hiroshi Akima, Maya Hioki, Akito Yoshiko, Teruhiko Koike, Hisataka Sakakibara, Hideyuki Takahashi, Yoshiharu Oshida, 70th Japanese Society of Physical Fitness and Sports Medicine, 18 Sep. 2015, 18 Sep. 2015 - 20 Sep. 2015
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