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Yanai Lab
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A lab that measures body movement through mechanics to understand athletic performance and injury.
AboutAbout the lab
Reading movement as numbers through mechanics.
The Yanai Lab studies sports movements using biomechanics methods.
It measures the movements of body segments and the forces and moments acting on joints, and expresses them as numerical values.
Topics have included the load on the elbow during baseball pitching and the force the hand exerts on the water in swimming.
The lab aims both to improve athletic performance and to reduce injury risk.
Key terms
- Biomechanics
- The study of measuring and explaining the movements of living bodies using the principles of mechanics
- Moment
- The turning effect of a force, such as one that rotates a joint. The larger it is, the greater the load
- Ulnar collateral ligament
- A ligament on the inner side of the elbow that keeps the joint from opening too far
ResearchResearch themes
The lab measures sports movements in three dimensions to determine the rotation of body segments and the forces acting on joints. From this, it explores movement patterns that improve athletic performance and conditions that lower injury risk.
*Illustrative imageMechanics of performance
The lab examines how the rotations of different body segments combine to produce speed and force in movements such as throwing and swimming.
*Illustrative imageMechanics of sports injuries
The lab measures mechanical loads that lead to injury, such as the stress on the ulnar collateral ligament of the elbow during pitching, and explores conditions that reduce them.
*Illustrative imageDevelopment of measurement techniques
The lab develops methods to capture quantities that could not be measured before, such as by combining three-dimensional motion measurement with muscle strength measurement.
MembersFaculty
- ProfessorToshimasa Yanai
VoicesStudent voices
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Write a lab reviewAnonymous · Your draft is saved if you stopRelatedLabs similar to Yanai Lab
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Akama LabSchool of Sport Sciences, Department of Sport SciencesSports medicine (internal medicine)The information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
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: “Eadweard Muybridge - Athletes. Walking High Leap (sepia)” Eadweard Muybridge (1830–1904) / Public domain (cropped)
- Mechanics of performance: “A baseball and glove” John / CC BY 2.0 (cropped)
- Mechanics of sports injuries: “Humerus - anterior view” Anatomography / CC BY-SA 2.1 jp (cropped)
- Development of measurement techniques: “Female Crash Test Dummy - THOR 5th” Lin Pan / CC BY-SA 3.0 (cropped)
- Related lab (Kawakami Lab): “Gastrocnemius muscle - posterior view” Polygon data were generated by Database Center for Life Science (DBCLS) / CC BY-SA 2.1 jp (cropped)
- Related lab (Kawama Lab): “Pen coil spring 20180405” Santeri Viinamäki / CC BY-SA 4.0 (cropped)
- Related lab (Miyamoto Lab): “Tendon - intermed mag” Nephron / CC BY-SA 3.0 (cropped)
- Related lab (Akama Lab): “e09d1b1do” NIAID / CC BY 2.0 (cropped)
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