Population
Male Sprague Dawley rats
Comparison
Endurance exercise training or interval sprint… vs Sedentary rats (SED)
Design
Preclinical
Follow-up
10 weeks
Key result
Endurance exercise training increased arteriolar density in the white and red portions of the gastrocnemius muscle compared to sedentary rats, while interval sprint training had no effect.
Authors
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Hypothesis-generating for exercise-induced arteriolar remodeling in active muscle; human studies needed before clinical relevance.
Endurance training, but not interval sprint training, increases arteriolar density in the red and white portions of the gastrocnemius muscle in rats.
Laughlin et al. (2006) studied this question. Endurance exercise training (ET) and interval sprint training (IST) vs. Sedentary rats (SED) was evaluated on Arteriolar density (number of arterioles/mm2 of tissue) in soleus and gastrocnemius muscles. Endurance exercise training increased arteriolar density in the white and red portions of the gastrocnemius muscle compared to sedentary rats, while interval sprint training had no effect.
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