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Related Experiment Video

Updated: May 17, 2026

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion

Published on: January 15, 2016

Asymmetry in multi-directional jumping tasks.

Jennifer K Hewit¹, John B Cronin, Patria A Hume

¹Sport Performance Research Institute New Zealand, AUT University, Private Bag 92006, Auckland 1020, New Zealand. jkhewit@gmail.com

Physical Therapy in Sport : Official Journal of the Association of Chartered Physiotherapists in Sports Medicine

|October 17, 2012

Summary

This summary is machine-generated.

Netball players show varied limb symmetry based on jump direction and measurement. Average symmetry index (ASI) differs significantly between force, power, and jump distance, highlighting the need for sport-specific assessments.

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Area of Science:

Sports Science
Biomechanics
Athletic Performance

Background:

Limb asymmetry can impact athletic performance and injury risk.
Understanding limb symmetry in netball players is crucial for training and injury prevention.

Purpose of the Study:

To quantify and compare average symmetry indexes (ASI) across different jumping directions (vertical, lateral, horizontal) and performance variables (jump distance, height, peak force, peak power) in non-injured netball players.

Main Methods:

Nineteen sub-elite netball players performed single-leg countermovement jumps in three directions.
Force plate data and jump distance were used to calculate ASI for force, power, height, and distance.

Main Results:

Averaged ASI ranged from 3.1% (peak force) to 11.4% (peak power).
Significant differences in ASI were found between variables and directions, with the lateral direction showing the greatest average ASI (8.4%).

Conclusions:

The magnitude of limb asymmetry varies depending on the measurement variable and jumping direction.
Strength and conditioning practitioners must select variables and directions relevant to the specific demands of netball, player position, and activity.