Document Type

Journal Article

Publication Title

Sports Medicine

ISSN

2199-1170

Volume

5

Issue

1

First Page

11

Last Page

11

PubMed ID

30911856

Publisher

Springer

School

Centre for Exercise and Sports Science Research / School of Medical and Health Sciences

RAS ID

29218

Comments

Originally published as: Ruas, C. V., Pinto, R. S., Haff, G. G., Lima, C. D., Pinto, M. D., & Brown, L. E. (2019). Alternative methods of determining hamstrings-to-quadriceps ratios: A comprehensive review. Sports Medicine - Open, 5, Article 11. Original publication available here

Abstract

The hamstrings-to-quadriceps muscle strength ratio calculated by peak torque has been used as an important tool to detect muscle imbalance, monitor knee joint stability, describe muscle strength properties and functionality, and for lower extremity injury prevention and rehabilitation. However, this ratio does not consider other neuromuscular variables that can also influence the antagonist to agonist muscle relationship, such as torque produced at multiple angles of range of motion, explosive strength, muscle size, muscle fatigue, or muscle activation. The aim of this study was to comprehensively review alternative methods of determining the hamstrings-to-quadriceps ratio. These include ratios calculated by angle-specific torque, rate of torque development, muscle size, fatigue index, and muscle activation (measured by electromyography). Collectively, the literature demonstrates that utilizing alternative methods of determining the hamstrings-to-quadriceps ratio can be functionally relevant for a better understanding of the neuromuscular mechanisms underpinning the interaction of strength between hamstrings and quadriceps. However, there is insufficient evidence to recommend any of the alternative methods as sensitive clinical tools for predicting injury risk and monitoring knee joint integrity. Future longitudinal studies, along with injury incidence, are needed to further investigate all alternative methods of determining the hamstrings-to-quadriceps ratio. These have potential to offer insight into how athletes and the general population should be trained for performance enhancement and injury reduction, and may be used along with traditional methods for a thorough assessment of an individual's H:Q muscle balance.

DOI

10.1186/s40798-019-0185-0

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

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