Correlation of grip and knee extension strength in mature adults

Article type: Review Article

Authors: Bohannon, Richard W.

Affiliations: Physical Therapy Consultants, 709 Far Post Drive, Fuquay-Varina, NC 27526, USA | Tel.: +1 860 543 9196; E-mail: rbohannonpt@gmail.com

Correspondence: [*] Corresponding author: Physical Therapy Consultants, 709 Far Post Drive, Fuquay-Varina, NC 27526, USA. Tel.: +1 860 543 9196; E-mail: rbohannonpt@gmail.com.

Abstract: BACKROUND AND OBJECTIVE: Grip and knee strength are commonly measured but controversy exists as to whether either is a proxy for the other. The purpose of this meta-analysis was to summarize the correlation between the 2 variables. METHODS: Relevant literature was sought using PubMed, Google, and a hand search. Information on populations, measurements, and correlations were extracted. Correlational data were subjected to meta-analysis. RESULTS: Results from 17 studies were consolidated. The summary correlation between grip and knee extension strength was 0.64 with 95% CI of 0.57 to 0.71. Data were highly heterogeneous but did not show publication bias. CONCLUSION: The correlation between the grip and knee extension strength is good. However, it is not good enough to justify using either as a proxy for the other.

Keywords: Muscle, strength, measurement, clinimetrics

DOI: 10.3233/IES-210161

Journal: Isokinetics and Exercise Science, vol. 31, no. 1, pp. 1-5, 2023