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Maximum Velocities in Flexion and Extension Actions for Sport.
David M Jessop1, Matthew T G Pain2
11School of Sport, Exercise and Social Science, Southampton Solent University, East Park Terrace, Southampton, UK.
Journal of Human Kinetics
|February 3, 2017
Summary
Understanding maximum joint velocities is key for optimizing human movement strategies and muscle models. The wrist and knee showed the highest angular velocities in elite athletes during flexion/extension tasks.
Area of Science:
- Biomechanics
- Human Movement Science
- Sports Science
Background:
- Movement speed is crucial for human actions.
- Maximum movement velocities inform movement strategies and muscle models.
- Understanding joint-specific velocities is essential for performance optimization.
Purpose of the Study:
- To determine maximum flexion and extension velocities.
- Investigate major joints in the upper and lower limbs.
- Compare velocities across isolated, countermovement, and proximal segment involvement conditions.
Main Methods:
- Seven elite male athletes performed flexion/extension at major limb joints.
- Three movement conditions were tested: isolated, isolated with countermovement, and proximal segment involvement.
- High-speed video (500 Hz) was used for velocity calculations.
Main Results:
- Highest angular velocities recorded: 50.0 rad·s-1 (wrist) and 28.4 rad·s-1 (knee).
- Maximal velocities often occurred with proximal segment involvement.
- ANOVA revealed few significant differences (p<0.05) between conditions for most joints.
Conclusions:
- Segment masses, structures, and locations influence joint velocities.
- Joint-specific strategies are required for maximal movements.
- Findings provide valuable data for biomechanical analysis and performance enhancement.
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