Sentences with phrase «isometric contractions occur»
Isometric contractions occur when the muscle contracts but there is no movement.
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Isometric contractions were stimulated in muscles ex vivo using a Grass Technologies S48 stimulator at a stimulation frequency of 120 Hz for EDL muscles and 80 Hz for soleus muscles, a stimulation current of 28 V, and duration of 500 ms. Muscle fatigue was analyzed using a repeated stimulation protocol lasting 6 minutes and consisting of repeated 40 - Hz tetanic trains that occurred once every second and lasted 330 ms (62).
Although there is good evidence for velocity - specificity occurring after dynamic strength training, some studies have also shown that strength training with «explosive» isometric contractions produces different results from «sustained» maximal force isometric contractions.