Sentences with phrase «during isometric contractions»

In contrast, Lehman et al. (2004) compared the lat pull - down performed with either a wide (150 % biacromial width) pronated grip or a supinated medium (100 % biacromial width) grip width during isometric contractions with the bar positioned at approximately eye level.
It appears that during isometric contractions at 80 % of maximum voluntary isometric contraction (MVIC), the heads of the triceps start to fatigue at 50, 40 and 65 seconds, for the lateral, long and medial heads respectively.

Not exact matches

During the winter Tebbetts sent them isometric - contraction exercisers paid for out of a kitty built up by $ 25 donations from players who made «unforgivable» errors.
The fatigue index curve of EDL muscles from IL - 15Rα — KO mice was shifted to the right during the first 70 seconds of the repeated stimulation protocol, demonstrating the maintenance of isometric force with repeated contractions (Figure 1A).
Isometric exercise is a type of strength training in which the muscle length and joint angle do not change during the contraction.
The goal is to become able to fully contract the muscle without resistance by practising isometric contraction both in home and during a workout by flexing your muscles in certain poses.
As above, Maganaris et al. (1998) assessed the Achilles tendon moment arm length during rest and maximal voluntary isometric contractions (MVIC).
However, it is unclear whether the soleus muscle activity is greater during flexed positions when performing isometric contractions.
Milner - Brown, Stein, and Yemm, Journal of Physiology, April 1973, two articles: 230, no. 2: 359 - 70 The orderly recruitment of human motor units during voluntary isometric contractions», and 230, no. 2: 371 - 90 «Changes in firing rate of human motor units during linearly changing voluntary contractions».
In vivo human gastrocnemius architecture with changing joint angle at rest and during graded isometric contraction
The orderly recruitment of human motor units during voluntary isometric contractions.
In addition, the medial hamstrings are more strongly activated normalized to maximum voluntary isometric contraction (MVIC) than the lateral hamstrings during running (Jönhagen et al. 1996; Higashihara et al. 2010b).
Thus, these studies suggest that the length of the muscle during strength training may not be an important factor for altering muscle fascicle length, at least when using isometric contractions.
In addition, they compared the muscle activity during a maximal isometric contraction during the dumbbell bench press and again found no difference in triceps muscle activity despite a significant loss in force output.
The presence of different levels of muscle activity has been observed both using surface electrodes and fine wire (intramuscular electrodes) and during maximal voluntary isometric contraction (MVIC), resistance training exercises, and normal humans movements such as gait.
Lehman et al. (2005) compared narrow, middle and wide hand spacing during the bench press by comparing the muscle activity of the triceps performing an isometric contraction with the weight near the chest.
This elastic energy is then released during a subsequent isometric contraction.
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