Publications by authors named "Tetsuro Hirayama"
[Purpose] The purpose of this study was to investigate changes in the shoulder and elbow joint angles, upper limb angular velocities, and elbow varus torque when throwing balls of two different sizes. [Participants and Methods] The pitching motion of 26 junior baseball players was analyzed using an optical motion capture system. The balls used were a standard baseball and a small ball of equal weight.
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- This study explored a new method of pelvic suspension using sling cords to see its impact on breathing in healthy men.
- It involved 25 participants in a specific position to measure diaphragm movement, respiratory function, and comfort using various techniques.
- Results showed that pelvic suspension improved diaphragm movement and respiratory health, leading to deeper, slower breathing and greater comfort compared to normal conditions.