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1120.2017

2017/11/17 Dr. Masafumi Terada, Assistant Professor in College of Sport and Health Science, has published an original research article in Gait & Posture.


 Dr. Terada, Assistant Professor in College of Sport and Health Science, published a research manuscript in Gait & Posture, co-authored with Dr. Phillip Gribble, Dr. Nate Johnson, and Dr. Kyle Kosik. This current investigation aimed to examine postural control performance during a single-leg balance task in elderly individuals with and without a previous history of lateral ankle sprain. In this current study, older-age participants with a history LAS exhibited decreased postural control variability compared to healthy controls. The information gained from this investigation indicates more rigid postural control patterns, less adaptability, and more difficulty maintaining COP during a single-leg balance task in adults with a previous history of lateral ankle sprain. Our data suggest that there is a need to consider history of musculoskeletal injury when evaluating factors for postural control and fall risk in the elderly.

 

Terada M, Kosik K, Johnson N, Gribble P. (2017). Altered Postural Control Variability in Older-Aged Individuals with A History of Lateral Ankle Sprain. Gait & Posture. 2017. In Press.

http://dx.doi.org/10.1016/j.gaitpost.2017.11.009

1113.2017

2017/9/22 Akio Morimoto is Undergraduate Student in Faculty of SHS, and his research manuscript was accepted and published in The Journal of Physical Therapy Science.


 Akio Morimoto is Undergraduate Student in Faculty of Sport and Health Science of Ritsumeikan University, and his research manuscript was accepted and published in The Journal of Physical Therapy Science, which collaborated with Professor Tadao Isak and Assistant Professor Tadshi Suga. The study revealed that muscle thickness in the hand was correlated with whole-body and/ appendicular skeletal muscle mass in healthy adults. Therefore, the study suggested that despite being smaller than other limb muscles, hand muscle thickness may be useful as surrogate indicator for assessing disease-related and age-related skeletal muscle loss.

https://www.jstage.jst.go.jp/article/jpts/29/9/29_jpts-2017-168/_article/-char/ja/

1110.2017

2017/11/06 Hiromasa Ueno is Graduate Student in SHS, and his research manuscript was accepted in International Journal of Sports Medicine.


Hiromasa Ueno is Graduate Student in Faculty of Sport and Health Science of Ritsumeikan University, and his research, which collaborated with Professor Tadao Isaka, Professor Akinori Nagano, and Assistant Professor Tadashi Suga in Faculty of Sport and Health Science of Ritsumeikan University, was accepted in International Journal of Sports Medicine. This study determined the lengths of forefoot bones in the big and second toes were significantly longer in endurance runners than in untrained subjects. Furthermore, the forefoot bone length of the big toe correlated significantly with the personal best time in the 5000-m race in endurance runners. These findings suggest that longer forefoot bones may be advantageous for achieving higher running performance in endurance runners.

 

Ueno H, Suga T, Takao K, Tanaka T, Misaki J, Miyake Y, Nagano A, and Isaka T (2017). Association between forefoot bone length and performance in male endurance runners. Int J Sports Med, in press.


1025.2017

2017/08/08 Nobuaki Tottori is Graduate Student in Faculty of SHS, and his research manuscript was accepted and published in Pediatric Exercise Science.


Nobuaki Tottori is a graduate student in Faculty of Sport and Health Science of Ritsumeikan University, and his research manuscript was accepted and published in Pediatric Exercise Science, in which he collaborated with Professor Tadao Isaka, Professor Satoshi Fujita, and Assistant Professor Tadashi Suga in Faculty of Sport and Health Science of Ritsumeikan University. This study showed that larger cross-sectional areas of the trunk and lower limb muscles, especially the psoas major, adductors, and quadriceps femoris, were correlated with higher sprint performance in 10- to 12-year-old boy sprinters. Furthermore, this finding was the first to suggest that greater muscularity of the hip flexors and knee extensors may help improve sprint performance in preadolescent sprinters.

 

Nobuaki Tottori, Tadashi Suga, Yuto Miyake, Ryo Tsuchikane, Mitsuo Otsuka, Akinori Nagano, Satoshi Fujita, and Tadao Isaka. Hip flexor and knee extensor muscularity are associated with sprint performance in sprint-trained preadolescent boys. Pediatric Exercise Science. Aug 8 ; Epub Ahead of print.


1025.2017

2017/8/7 Satoru Ato (M.S.)is a graduate student in Faculty of Sport and Health Science at Ritsumeikan University, and his research manuscript has been accepted and published in Physiological Reports


 

 Mr. Satoru Ato (M.S.) is a graduate student in Faculty of Sport and Health Science at Ritsumeikan University.  His research manuscript has been accepted and published in Physiological Reports, which collaborated with Professor Satoshi Fujita. The study revealed differences in contraction mode during resistance exercise with a constant force-time integral, are not the determinant factors in regulating proteolytic signaling during early phase of post-exercise.

 

Satoru Ato, Yuhei Makanae, Kohei Kido, Kohei Sase, Naomi Yoshii, Satoshi Fujita. The effect of different acute muscle contraction regimens on the expression of muscle proteolytic signaling proteins and genes (2017) Physiological Reports. August;5(15), 2017.


1011.2017

2017/10/09 Sahiro Mizuno is Graduate Student in Sport and Health Science, and her research manuscript was accepted in Frontiers in Physiology.


      Sahiro Mizuno is Graduate Student in Sport and Health Science of Ritsumeikan University, and her research manuscript was accepted and published in Frontiers in Physiology, which collaborated with Professor Kazushige Goto. The study revealed that wearing a compression garment exerting 15 mmHg on the thigh significantly attenuated increase in muscle damage marker in blood following exercise than that with wearing a lower-body garment exerting below 5 mmHg.

 

Sahiro Mizuno, Mari Arai, Fumihiko Todoko, Eri Yamada and Kazushige Goto. Frontiers in Physiology, 2017; doi: 10.3389/fphys.2017.00834


1010.2017

2017/3/23 Mr. Takahiro Tanaka is master’s degree holder in SHS, and his research manuscript was accepted and published in Scandinavian Journal of Medicine & Science in Sports.


Mr. Takahiro Tanaka is a master’s degree holder in SHS, and his research, which collaborated with Professor Tadao Isaka and Akinori Nagano, Assistant Professor Tadashi Suga and Mitsuo Otsuka in Faculty of Sports and Health Science of Ritsumeikan University, was accepted and published in Scandinavian Journal of Medicine & Science in Sports. This study determined the lengths of forefoot bones in the big and second toes were significantly longer in sprinters than in non-sprinters. Furthermore, the forefoot bone length of the second toe correlated significantly with the personal best time in the 100-m sprint in sprinters. These findings suggest that longer forefoot bones may be advantageous for achieving higher sprint performance in sprinters.

 

Tanaka T, Suga T, Otsuka M, Misaki J, Miyake Y, Kudo S, Nagano A, Isaka T. Relationship between the length of the forefoot bones and performance in male sprinters. Scand J Med Sci Sports, Epub ahead of print

http://onlinelibrary.wiley.com/doi/10.1111/sms.12857/full

/file.jsp?id=353427

1010.2017

2017/6/23 Hiromasa Ueno is Graduate Student in SHS, and his research manuscript was accepted in Scandinavian Journal of Medicine & Science in Sports.


Hiromasa Ueno is Graduate Student in Faculty of Sport and Health Science of Ritsumeikan University, and his research, which collaborated with Professor Tadao Isaka, Professor Akinori Nagano, and Assistant Professor Tadashi Suga in Faculty of Sport and Health Science of Ritsumeikan University, was accepted in Scandinavian Journal of Medicine & Science in Sports. This study determined that the length of the Achilles tendon of medial gastrocnemius muscle is related to running performance, including running economy, in endurance runners. Therefore, these findings suggest that longer Achilles tendon may be advantageous to achieve higher running performance in endurance runners.

 

Ueno H, Suga T, Takao K, Tanaka T, Misaki J, Miyake Y, Nagano A, Isaka T. Relationship between Achilles tendon length and running performance in well-trained male endurance runners. Scand J Med Sci Sports, in press.

http://onlinelibrary.wiley.com/doi/10.1111/sms.12940/full

1010.2017

2017/10/03 Hiromasa Ueno is Graduate Student in SHS, and his research manuscript was accepted in International Journal of Sports Medicine.


Hiromasa Ueno is Graduate Student in Faculty of Sport and Health Science of Ritsumeikan University, and his research, which collaborated with Professor Tadao Isaka, Professor Akinori Nagano, and Assistant Professor Tadashi Suga in Faculty of Sport and Health Science of Ritsumeikan University, was accepted in International Journal of Sports Medicine. This study determined that passive planter flexor stiffness correlated is related to running performance, including running economy, in endurance runners. Therefore, these findings suggest that higher passive planter flexor stiffness may be advantageous to archive better running performance in endurance runners.

 

Ueno H, Suga T, Takao K, Tanaka T, Misaki J, Miyake Y, Nagano A, Isaka T. Potential relationship between passive plantar flexor stiffness and running performance. Int J Sports Med, in press


1003.2017

2017/09/15 Michio Wachi is Graduate Student in SHS, and his research manuscript was accepted and published in The Journal of Physical Therapy Science.


Michio Wachi is Graduate Student in Faculty of Sport and Health Science of Ritsumeikan University, and his research manuscript was accepted and published in The Journal of Physical Therapy Science, which collaborated with Professor Tadao Isaka and Assistant Professor Tadashi Suga. The study revealed that trunk muscle thicknesses measured by ultrasonography were highly correlated with these muscle cross-sectional areas measured by magnetic resonance imaging in baseball players. These results suggest that ultrasonography-measured thicknesses of trunk muscles can be used as a surrogate marker for magnetic resonance imaging-measured muscle size, in athletes who have larger trunk muscles than that of untrained subjects.

Wachi M, Suga T, Higuchi T, Misaki J, Tsuchikane R, Tanaka D, Miyake Y, Kanazawa N, Isaka T. (2017). Applicability of ultrasonography for evaluating trunk muscles size in athletes; a study focused on baseball batters. J Phys Ther Sci, 29: 1534–1538.


https://www.ncbi.nlm.nih.gov/pubmed/28931982

0919.2017

2017/09/13 Akiho Ikutomo is Graduate Student in Sport and Health Science, and her research manuscript was accepted in European Journal of Sports Science.


The study revealed that inserted long rest periods between repeated sprint exercise promoted training adaptations in competitive athletes.

 

Ikutomo A, Kasai N, Goto K. Impact of Inserted Long Rest Periods during Repeated Sprint Exercise on Performance Adaptation. Eur J Sports Sci, 2017 (In press)


0915.2017

2017/09/11 Professor Kazushige Goto published a research article in Applied Physiology, Nutrition, and Metabolism.


The study revealed that hepcidin (iron regulating hormone) elevation after repeated sprint exercise was not different between hypoxic condition and normoxic condition.

 

Kazushige Goto, Nobukazu Kasai, Chihiro Kojima, Aya Ishibashi

Post-exercise serum hepcidin response to repeated sprint exercise under normoxic and hypoxic conditions. Appl Physiol Nutr Metab, 2017 (ahead of print)


0907.2017

2017/09/06 Dr. Hayato Tsukamoto is Senior researcher in Research Organization of Science and Technology, and his research manuscript was accepted and published in PLoS One.


 Dr. Hayato Tsukamoto is a Senior researcher in Research Organization of Science and Technology of Ritsumeikan University, and his research, which collaborated with Professor Tadao Isaka, Professor Takeshi Hashimoto, and Assistant Professor Tadashi Suga in Faculty of Sport and Health Science of Ritsumeikan University, was accepted and published in PLoS One. In this study, we revealed that inhibitory control (i.e., executive function of the brain) could be improved immediately after knee extension resistance exercise, especially with high-intensity. Therefore, we propose that, in addition to whole-body resistance exercise and aerobic exercise, localized resistance exercise that is performed by recruiting limited muscle groups may be sufficient for improving inhibitory control.

 

Tsukamoto H, Suga T, Takenaka S, Takeuchi T, Tanaka D, Hamaoka T, Hashimoto T, and Isaka T (2017). An acute bout of localized resistance exercise can rapidly improve inhibitory control. PLoS One, Vol.12(9): e0184075.

 

http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0184075&type=printable


0904.2017

2017/08/22 Professor Kazushige Goto published a research article in PLOS ONE.


 

The study revealed that endurance exercise-induced hepcidin (iron regulating hormone) elevation was not different between hypoxic condition and normoxic condition.

 

Kazushgie Goto, Daichi Sumi, Chihiro Kojima, Aya Ishibashi

Post-exercise serum hepcidin levels were unaffected by hypoxic exposure during prolonged exercise sessions. PLOS ONE, 12 (8): e0183629, 2017.


0901.2017

2017/8/28 Aya Ishibashi is Graduate Student in Sport and Health Science, and her research manuscript was received an Encouragement Award in the 72nd Japanese Society of Physical Fitness and Sports Medicine.


Aya Ishibashi is Graduate Student in Sport and Health Science of Ritsumeikan University, and her research manuscript was received an Encouragement Award in the 72nd Japanese Society of Physical Fitness and Sports Medicine in Ehime.  

 

Aya Ishibashi, Hiroto Sasaki, Saori Matsumiya, Aoi Ikedo, Aya Kaizaki, Takafumi Hamaoka, Kazushige Goto, Kumiko Ebi (2016). Influence of four weeks of n-3 polyunsaturated fatty acid supplementation on fat metabolism during prolonged exercise. The Japanese Journal of Physical Fitness and Sports Medicine, 65 (2) p.225-235.


0901.2017

2017/7/30 Aya Ishibashi is Graduate Student in Sport and Health Science, and her research manuscript was accepted in Nutrients.


Aya Ishibashi is Graduate Student in Sport and Health Science of Ritsumeikan University, and her research manuscript was accepted and published in The Journal of Nutrients, which collaborated with Professor Kazushige Goto. The study revealed that effect of three consecutive days of endurance training (twice daily) on the hepcidin level, iron regulated hormone. Subjects were assigned to either an iron treatment group or a placebo group. On days 4, the iron treatment group showed significantly higher hepcidin level compared with day1. The present findings may suggest even a moderate dose of iron supplementation during endurance training may not be a recommendable treatment to improve physical condition in athletes.

Aya Ishibashi, Naho Maeda, Akiko Kamei, Kazushige Goto. Iron Supplementation during Three Consecutive

Days of Endurance Training Augmented Hepcidin Levels. Nutrients. 2017, 9, 820.


0830.2017

2017/07/06 Nobukazu Kasai is Graduate Student in Sport and Health Science, and his research manuscript was accepted in International Journal of Sports Medicine.


Nobukazu Kasai is Graduate Student in Sport and Health Science of Ritsumeikan University, and his research manuscript was accepted in International Journal of Sports Medicine, which collaborated with Professor Kazushige Goto. The study shows significant improvement of power output during maximal sprint test following short-term (5 days) sprint training in hypoxia among competitive sprint runners. The present findings suggest that short-term sprint training in hypoxia causes further improvement of sprint performance among competitive sprint runners.

Nobukazu Kasai, Chihiro Kojima, Daichi Sumi, Hideyuki Takahashi, Kazushige Goto, Yasuhiro Suzuki. Impact of 5 Days of Sprint Training in Hypoxia on Performance and Muscle Energy Substances. International Journal of Sports Medicine, 2017 (In press)


0829.2017

2017/05/31 Sahiro Mizuno is Graduate Student in Sport and Health Science, and her research manuscript was accepted in PLOS ONE.


      Sahiro Mizuno is Graduate Student in Sport and Health Science of Ritsumeikan University, and her research manuscript was accepted and published in PLOS ONE, which collaborated with Professor Kazushige Goto. The study revealed that wearing a lower body compression garment exerting 15 mmHg significantly attenuated decrease in jump performance than that with wearing a lower body compression garment exerting 30 mmHg. Furthermore, exercise-induced increases in HR and the inflammatory response were significantly smaller with compression garment exerted 15mmHg than that with garment exerted < 5 mmHg.

 

Sahiro Mizuno, Mari Arai, Fumihiko Todoko, Eri Yamada and Kazushige Goto. PLOS ONE, 2017; 12 (5): e0178620


0829.2017

2017/08/01 Ms. Chihiro Kojima is Graduate student of SHS, and her research manuscript was accepted and published in Journal of Strength and Conditioning Research.


Ms. Chihiro Kojima is graduate student of Sport and Health Science of Ritsumeikan University, which collaborated with Professor Kazushige Goto. The study revealed that high-intensity interval exercise under hypoxic and normoxic conditions lowered plasma ghrelin concentrations and subsequent energy intake.

 

Chihiro Kojima, Nobukazu Kasai, Aya Ishibashi, Yukako Murakami, Kumiko Ebi and Kazushige Goto. (2017) Appetite regulations after sprint exercise under hypoxic condition in female athletes. Journal of Strength and Conditioning Research. [Epub ahead of print]


0828.2017

2017/07/31 Michio Wachi is Graduate Student in SHS, and his research manuscript was accepted and published in Kyoto and Shiga journal of physical education, health and sport sciences.


 Michio Wachi is Graduate Student in Faculty of Sport and Health Science of Ritsumeikan University, and his research manuscript was accepted and published in Kyoto and Shiga journal of physical education, health and sport sciences, which collaborated with Professor Tadao Isaka. The purpose of this study was to reveal a lack factor that can be conceived from a psychological and nutritional science point of view for athletes who have undergone an operational surgery. The study revealed that the psychological and nutritional status of the postoperative athletes were required to be grasped and approached in order to early return to the sport.