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. 2008 Oct 30;467(4):1074–1082. doi: 10.1007/s11999-008-0594-8

Table 4.

Comparisons of muscle group architecture

Joint Muscle group Mean fiber length (cm) Total PCSA (cm2)
Ankle Plantarflexors 4.8 ± 1.1* 124.3 ± 30.4*
Dorsiflexors 7.1 ± 1.1 19.7 ± 4.6
Knee Extensors 9.3 ± 2.1 88.4 ± 30.5
Flexors 9.3 ± 2.6 40.1 ± 13.6
Hip Extensors 10.5 ± 3.6 73.4 ± 20.5§
Flexors 17.4 ± 13.5 35.9 ± 9.0
Abductors 7.3 ± 1.6 36.0 ± 14.3
Adductors 16.0 ± 6.0 36.2 ± 10.4

Values expressed as mean ± standard deviation; * significant (p < 0.05) difference between plantarflexors and dorsiflexors; significant (p < 0.05) difference between knee extensors and knee flexors; significant (p < 0.05) difference between hip flexors, abductors and hip extensors, adductors; §significant (p < 0.05) difference between hip extensors and flexors, abductors, adductors.