Kinetic analysis of start motion on starting block in competitive swimming

The aim of this study was to investigate kinetic features of start motion with use of an instrumented starting block. This is the first study that quantified joint torques of the whole body during start motion. Six male swimmers dived from the instrumented starting block, which contains force plates and sensors. Four high-speed cameras were used to obtain kinematics data of the swimmers. Inverse dynamics calculation was carried out with use of the kinetics and kinematics data. The results showed that 1) the large pulling up forces exerted by both hands were generated by extension toques of the shoulder joints, 2) the rear side lower limb joints exerted large extension torque to obtain horizontal reaction force, and 3) the knee joint of the front side lower limb exerted large flexion torque to maintain the large vertical reaction force until 60% normalized start motion time.
© Copyright 2016 International Society of Biomechanics in Sports Conference Proceedings. Springer. Published by International Society of Biomechanics in Sports. All rights reserved.

Subjects: biomechanics swimming start movement technique analysis strength time
Notations: endurance sports
Published in: International Society of Biomechanics in Sports Conference Proceedings
Editors: M. Ae, Y. Enomoto, N. Fujii, H. Takagi
Published: Tsukuba International Society of Biomechanics in Sports 2016
Volume: 34
Issue: 1
Pages: 960-963
Document types: congress proceedings
electronical journal
article
Language: English
Level: advanced