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Cited by 302

The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.

Isokinetic hamstring/quadriceps strength ratio: influence from joint angular velocity, gravity correction and contraction mode

AAGAARD, P., SIMONSEN, E. B., TROLLE, M., BANGSBO, J., KLAUSEN, K.·1995·Acta Physiologica Scandinavica
DOI 10.1111/j.1748-1716.1995.tb09927.x
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Abstract

This study investigated isokinetic peak‐ and angle‐specific hamstring/quadriceps strength ratios (conventional H/Q ratio) obtained during concentric and eccentric muscle contraction and examined the influence of joint angular velocity and the effect of gravity correction on these ratios. Also, a ‘functional’ H/Q ratio was defined by calculating eccentric hamstring strength relative to concentric quadriceps strength (H eee/Q eon representative for knee extension) and calculating concentric hamstring strength relative to eccentric quadriceps strength (H eon/Q eee representative for knee flexion). The H/Q ratio was calculated based on isokinetic peak moment and 50 o‐moment (0 o= full extension) obtained at joint angular velocities 30, 120 and 240 o s‐1. Gravity corrected conventional H/Q ratio remained constant across speeds and contraction mode, ranging from 0.47 to 0.54 and from 0.49 to 0.56 based on peak and 50 o moment, respectively. In contrast, non‐corrected H/Q_ ratio increased during concentric contraction from 0.58 at 30 o s‐1 to 0.74 at 240 o s‐1 (P < 0.01). For knee extension at 240 o s‐1 an H eee/Q eon of 1.05 (peak) and 0.89 (50 o) was observed while for flexion at 240 o s‐1 an H eon/Q eee of 0.27 (peak) and 0.28 (50 o) was observed. In conclusion, gravity correction had high influence on the change in H/Q ratio with variation in extension velocity. A potential 1:1 hamstring/quadriceps strength relationship was demonstrated for fast knee extension, indicating a significant functional capacity of the hamstring muscles for providing muscular stability at the knee joint in such situations.

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Crossref · 10.1111/j.1748-1716.1995.tb09927.x

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Metadata

Authors
AAGAARD, P., SIMONSEN, E. B., TROLLE, M., BANGSBO, J., & KLAUSEN, K.
Venue
Acta Physiologica Scandinavica
Publisher
Wiley
Published
1995-08
Volume
154
Issue
4
Pages
421-427
ISSN
  • 0001-6772 (ISSN-L)
  • 1365-201X
DOI
10.1111/j.1748-1716.1995.tb09927.x
OpenAlex
W2030147519
Cited by
302
References
16
FWCI
2.61
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Isokinetic hamstring/quadriceps strength ratio: influence from joint angular velocity, gravity correction and contraction mode. https://app.cochat.ai/papers/10.1111/j.1748-1716.1995.tb09927.x
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AAGAARD, P., SIMONSEN, E. B., TROLLE, M., BANGSBO, J., & KLAUSEN, K. (1995). Isokinetic hamstring/quadriceps strength ratio: influence from joint angular velocity, gravity correction and contraction mode. Acta Physiologica Scandinavica. https://doi.org/10.1111/j.1748-1716.1995.tb09927.x

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.