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Updated: Oct 21, 2025
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A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance
Published on: March 19, 2020
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Reactive Strength as a Metric for Informing Return-to-Sport Decisions: A Case-Control Study.
Journal of Sport Rehabilitation
|September 2, 2021
Summary
Reactive strength testing, not just time or basic strength, better identifies lingering deficits in athletes. This dynamic assessment helps inform return-to-sport decisions and reduce reinjury risk.
Area of Science:
- Sports Medicine
- Biomechanics
- Rehabilitation Science
Background:
- Current return-to-sport (RTS) decisions rely heavily on time elapsed and strength metrics.
- Existing methods show only a 55% success rate for athletes returning to competitive sport.
- There's a need for improved tools to guide RTS decisions and minimize reinjury.
Purpose of the Study:
- To evaluate reactive strength as a metric for informing RTS decisions.
- To identify functional deficits that may persist during the final stages of RTS protocols.
- To compare reactive strength measures between injured athletes and healthy controls.
Main Methods:
- A case-control design was employed, comparing elite athletes in RTS protocols with age-matched controls.
- Participants underwent unilateral isometric strength testing and a 24-cm drop jump test.
- Interleg asymmetry was analyzed using pairwise comparisons.
Main Results:
- Standard strength measures did not differentiate between the control and rehabilitation groups.
- Significant differences in interleg asymmetry were observed in contact time, flight time, and reactive strength index (RSI).
- Reactive strength index showed a notable difference (22.4%) between groups.
Conclusions:
- Reactive strength testing reveals persistent functional deficits in athletes nearing RTS.
- Dynamic assessment tools, like reactive strength testing, are valuable for informed RTS decisions.
- Utilizing these tools can help mitigate the risk of reinjury in athletes.
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