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Researcher Information

last modified:2022/07/06


Mail Laboratory Website

Faculty, Affiliation

Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences
Assistant Professor

College and School Educational Field

Department of Physical Therapy,School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences


Academic Background

【Academic background(Doctoral/Master's Degree)】
Kanazawa University Master Graduate School, Division of Medical Sciences 200603 Completed
【Academic background(Bachelor's Degree)】
Universidade Federal do Rio Grande do Norte 200209
Doctor of Philosophy in Health Science
Master's Degree


Year & Month of Birth

Academic Society

Conselho Federal de Fisioterapia e Terapia Ocupacional



Rehabilitation science/Welfare engineering

Speciality Keywords

Research Themes

Pathophysiology of Muscle Disuse Atrophy during the recovery process: Radioactive Tracer Monitoring Study

Pathophysiology of Muscle Disuse Atrophy during the recovery process: Radioactive Tracer Monitoring Study This work researched the effect in muscle blood flow after weight bearing and stretching, which are commom techniques used in muscle disuse atrophy prevention and recovery, assessing by Thallium-201 radiotracer. The muscle blood flow was evaluated in muscle disuse atrophy model rats after weight bearing. The weight bearing provided fast effects increasing the muscle blood flow. The investigation on stretching methods showed that faster cycles (S2 group) of intermittent stretching had clearer effects on muscle blood flow than slower cycles(S1 group)(Fig). The sustained stretching had also increasing effects on muscle blood flow, however the effects resulted later than the intermittent stretching.

Effects of Stretching on Muscle Disuse Atrophy: Radioactive Tracer Monitoring Study

Effects of Stretching on Muscle Disuse Atrophy: Radioactive Tracer Monitoring Study

Objective evaluation of frailty focusing on standing ability and leg muscle thickness and its contribution for analyzing physical therapy intervention period.



  •  Blood lipid profile changes in type 2 diabetic rats after tail suspension and reloading. Shoji Tanaka,Sachiko Madokoro,Pleiades Tiharu Inaoka,Toshiaki Yamazaki Lipids in health and disease 20 1 84 2021/08/01
  •  The role of the pressure information from the heel on the perception of the backward-leaning standing position. Hitoshi Asai,Pleiades T Inaoka Neuroscience letters 750 135752 2021/04/17
  •  Effect of performing daily activities while standing on the quantity and quality of the thigh muscles in adults with severe cerebral palsy: a cross-sectional study. Soma Endo,Toshikazu Soyama,Hitoshi Asai,Pleiades Tiharu Inaoka,Hiroyuki Sasaki,Issei Nomura,Keisuke Sakurakichi Journal of physical therapy science 33 3 288 2021/03
  •  Host-microbe interactions in the pathogenesis and clinical course of sarcoidosis. Pleiades T Inaoka,Masato Shono,Mishio Kamada,J Luis Espinoza Journal of biomedical science 26 1 45 2019/06/11
  •  Fast repetitive stretch suppresses denervation-induced muscle fibrosis Shoji Tanaka,Pleiades Tiharu Inaoka,Asami Yano,Takao Nakagawa,Toshiaki Yamazaki Muscle and Nerve 62 6 746 2020/12

show all

  •   Pelvic Inclination Angle during the Straight Leg Raise Test and Knee Extension Test.  Dai Nakaizumi, Hitoshi Asai, Pleiades Tiharu Inaoka Bone Muscle 1 1 001-005 2018
  •  Investigation of onset factors of groin pain in male soccer players.   Sugano T, Miaki H, Inaoka PT, Hori H  Gazzetta Medica Italiana Archivio per le Scienze Mediche 176 4 171-179 2017/04
  •  Walking gait changes after stepping-in-place training using a foot lifting device in chronic stroke patients. Murata K, Asai H, Inaoka PT, Nakaizumi D. J Phys Ther Sci 28 4 1170-7 2016/12
  •  Histopathological Changes in Knee Joint Components after Spinal Cord Injury in Rats Kitade, Ippei;Hoso, Masahiro;Matsuzaki, Taro;Inaoka, Pleiades Tiharu;Kamijyo, Akio;Araki, Yoshitaka;Takahashi, Ikufumi JOURNAL OF PHYSICAL THERAPY SCIENCE 24 1 31-35 2012
  •  Relationship between the ability to perform the sit-to-stand movement and the maximum pelvic anteversion and retroversion angles in patients with stroke. Asai H, Tsuchiyama H, Hatakeyama T, Inaoka PT, Murata K J Phys Ther Sci 27 4 985-8 2015/04
  •  Age-related Changes in Maximum Pelvic Anteversion and Retroversion Angles Measured in the Sitting Position. Asai H, Tsuchiyama H, Hatakeyama T, Inaoka PT, Murata K. J Phys Ther Sci 26 12 1959-61 2014
  •  Influence of passive stretching on inhibition of disuse atrophy and hemodynamics of rat soleus muscle. Kimura S, Inaoka PT, Yamazaki T 15 1 9-14 2012
  •  Assessment of Hindlimb Muscle Blood Flow in Rats during Recovery after Hindlimb Unloading by Thallium-201 Ryohei Amano, Shoji Tanaka, Katsuhiko Tachino Journal of Physical Therapy Science 21 2 163-167 2009/06
  •  Age-Associated Changes in Atrophy of The Extensor Digitorum Longus Muscle in Hindlimb-Suspended Rats Toshiaki Yamazaki, Katsumi Inoue, Pleiades Tiharu Inaoka, Keiichi Tsuji, Katsuhiko Tachino Journal of Physical Therapy Science 20 2  129-133 2008/06
  •  Uptake Behavior of Thallium-201 in Hindlimb Muscles of Rats Katsuhiko Tachino, Ryohei Amano, Toshiaki Yamazaki, Masami Yokogawa, Shoji Tanaka Journal of Physical Therapy Science 20 2 117-122 2008/06
  •  The repeated administration of resveratrol has measurable effects on circulating T-cell subsets in humans. Espinoza L, Trung L, Inaoka P, Yamada K, Dao A, Mizuno S, Nakao S, Takami A.   Oxid Med Cell Longev. 2017
  •  Effect of hindlimb unloading and reloading on the soleus and plantaris muscles in diabetic rats. Sachiko Madokoro,Pleiades Tiharu Inaoka,Shoji Tanaka,Toshiaki Yamazaki Journal of physical therapy science 30 9 1150 2018/09
  •  Measurement of the cross-sectional area of the hamstring muscles during initial and stretch positions with gravity magnetic resonance imaging. Dai Nakaizumi,Hitoshi Asai,Pleiades Tiharu Inaoka,Naoki Ohno,Tosiaki Miyati Journal of physical therapy science 31 3 267 2019/03
  •  Perception of trunk inclination during sitting with feet in contact with the floor. Soma Endo,Hitoshi Asai,Tiharu Inaoka-Pleiades Journal of physical therapy science 31 2 185 2019/02
  •  Gnetin-C and other resveratrol oligomers with cancer chemopreventive potential. J Luis Espinoza,Pleiades T Inaoka Annals of the New York Academy of Sciences 1403 1 5 2017/09
  •  Gnetin-C and other resveratrol oligomers with cancer chemopreventive potential J. Luis Espinoza, Pleiades T. Inaoka ANNALS OF THE NEW YORK ACADEMY OF SCIENCES 1403 5-14 2017
  •  Effects of long-term treatment with dietary theobromine on rat skeletal muscles Shoji Tanaka, Naotoshi Sugimoto,Takako Ohno-Shosaku, Sachiko Madokoro, Pleiades Tiharu Inaoka, Toshiaki Yamazaki 2022/02
  •  Inflammatory myopathies overlapping with systemic sclerosis: a systematic review Jucier Gonçalves Júnior, Naoki Mugii, Pleiades Tiharu Inaoka, Percival Degrava Sampaio-Barros, Samuel Katsuyuki Shinjo Clinical Rheumatology 2022/02
  •  The effects of the pressure on the coccygeal skin on the perception of backward-leaning sitting positions in stroke patients Hitoshi Asai, Pleiades Tiharu Inaoka Neuroscience Letters  72 11 136450 2022/01

Conference Presentations



Arts and Fieldwork


Theme to the desired joint research

Grant-in-Aid for Scientific Research

○Grant-in-Aid for Scientific Research (C)「Frailty objective assessment targeting the standing ability and lower limb muscle thickness: Searching criteria for ideal Physical Therapy intervention 」(2018-2022) 

Competitive research funding,Contribution

Collaborative research,Consignment study

Classes (Bachelors)

○Life stage and physical therapy(2021)
○Activities of Daily Living 1(2021)
○Practice of Kinesiology(2021)
○Environmental and the Physical Therapist(2021)
○Activities of Daily Living 2(2021)
○Activities of Daily Living 2(2020)
○Environmental and the Physical Therapist(2020)
○Physical Therapy Seminar(2020)
○Practice of Kinesiology(2020)
○Life stage and physical therapy(2020)
○English for Physical Therapy(2020)
○Presentation and Debate (Freshman Seminar II)(2020)
○Physical Therapy Seminar(2020)
○Life stage and physical therapy(2020)
○Practice of Kinesiology(2020)
○Activities of Daily Living 1(2020)
○Activities of Daily Living 1(2020)
○Environmental and the Physical Therapist(2020)
○Activities of Daily Living 2(2020)
○Practice of Kinesiology(2019)
○Activities of Daily Living 2(2019)
○Life stage and physical therapy(2019)
○Clinical Internship 3(2019)
○English for Physical Therapy(2019)
○Life stage and physical therapy(2019)
○Environmental and the Physical Therapist(2019)
○Physical Therapy Seminar(2019)
○Practice of Kinesiology(2018)
○Clinical Internship 1(2018)
○Presentation and Debate (Freshman Seminar II)(2018)
○Medical English for Physiotherapist(2018)
○Practice of Kinesiology(2017)
○Presentation and Debate (Freshman Seminar II)(2017)
○Presentation and Debate (Freshman Seminar II)(2017)
○Presentation and Debate (Freshman Seminar II)(2017)
○Freshman Seminar I(2017)
○Activities of Daily Living 2(2017)
○Introduction to Region-studies(2017)
○Activities of Daily Living 2(2016)
○Practice of Kinesiology(2016)

Classes (Graduate Schools)

○Research Design in Health Science 2: Lecture(2018)
○Research Design in Health Science 2: Lecture(2017)
○Research Design in Health Science 2: Lecture(2016)

International Project

International Students

Lecture themes

Others (Social Activities)

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