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Kumai Lab
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A lab that studies how the body functions normally in order to prevent injuries in athletes.
AboutAbout the lab
Knowing what is normal is the shortest path to preventing injury.
Kumai Lab (Musculoskeletal Sports Functional Anatomy Lab) studies the mechanisms of the organs that move the body.
To understand abnormalities of the musculoskeletal system, it is essential first to know how the body works normally.
Using diverse methods such as ultrasound imaging, electromyography, and microscopy, the lab investigates the causes of pain and injury.
From this, it aims to prevent injuries in athletes and to make proposals that identify disease conditions and lead to treatment.
Key terms
- Musculoskeletal system
- The group of organs that work to move the body, including bones, joints, muscles, tendons, and nerves.
- Functional anatomy
- A discipline that considers the form of each part of the body in connection with the role it plays in movement.
- Epidemiology
- A method of studying populations to investigate how diseases and injuries occur and how they relate to their causes.
NewsLab news
Professor Kumai and colleagues clarify the effect of flossing on improving joint range of motion
A paper for which Professor Kumai is corresponding author reports the relationship between variability in the release point of a pitch and pitching performance
ResearchResearch themes
The lab builds up knowledge of normal bodily function in order to understand abnormalities of the musculoskeletal system. Using a variety of methods, it conducts research that leads to proposals for preventing injuries in athletes.
*Illustrative imageUltrasound Image Analysis
Using ultrasound diagnostic imaging equipment, the lab observes the inside of the body in real time, examining the form and function of muscles and fascia and the condition of painful areas.
*Illustrative imageEpidemiological Research
The lab conducts regular medical checkups for junior athletes during the period of rapid development of motor abilities. It aims to create environments where they can play sports safely.
*Illustrative imageBiomechanics Research
Using cameras and electromyography, the lab identifies body movements and the active muscles during sports and daily activities, and applies the findings to improving athletic performance and preventing injury.
*Illustrative imageTissue Morphology Research
The lab takes tissue samples from painful areas and observes them at the microscopic level with electron microscopy and other tools, seeking to uncover the causes of pain.
MembersFaculty
Kumai Lab members include faculty, graduate students, research fellows, visiting researchers, and undergraduate lab seminar students.As of 2026
- ProfessorTsukasa Kumai
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Ossa pedis - talus (medialis, lateralis)” MAKY.OREL / CC0 (cropped)
- Ultrasound Image Analysis: “Ultrasound img of vastus lateralis strain 2” Jmarchn / CC BY-SA 3.0 (cropped)
- Epidemiological Research: “2023 Stetoskop” Jacek Halicki / CC BY-SA 4.0 (cropped)
- Biomechanics Research: “Red McEwen Field at USF Baseball Stadium” Geolojoey / CC BY-SA 4.0 (cropped)
- Tissue Morphology Research: “CSIRO ScienceImage 293 Cells Interacting With Collagen” CSIRO / CC BY 3.0 (cropped)
- Related lab (金岡研究室): “Model Human Spine with tulips” Mauzymob / CC BY-SA 4.0 (cropped)
- Related lab (前道研究室): “Ossa pedis (sin) - calcaneus (medial view detail)” MAKY.OREL / CC0 (cropped)
- Related lab (鳥居研究室): “Radiograph of human knee with Osgood–Schlatter disease” James Heilman, MD / CC BY-SA 3.0 (cropped)
- Related lab (赤間研究室): “e09d1b1do” NIAID / CC BY 2.0 (cropped)
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