Key result
The medial compartment of the rat extensor digitorum longus muscle had a lower optimal cycle frequency for maximal net power generation compared with the lateral compartment (11 vs 15 Hz; P<0.05).
Absolute Event Rate: 11% vs 15%
p-value: p=<0.05
Regional variation in mechanical performance and fatigue resistance within the rat extensor digitorum longus muscle suggests differential recruitment patterns during locomotion.
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Distinct optimal frequencies indicate intramuscular specialization; leaves open translation to human performance or cardiac muscle.
Kissane et al. (2017) studied this question. Medial compartment of extensor digitorum longus muscle vs. Lateral compartment was evaluated on Optimal cycle frequency for maximal net power generation (p=<0.05). The medial compartment of the rat extensor digitorum longus muscle had a lower optimal cycle frequency for maximal net power generation compared with the lateral compartment (11 vs 15 Hz; P<0.05).
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