Sentences with phrase «thoracic erector spinae muscle»
Therefore, it appears that the lower erector spinae muscle activity is relatively high regardless of load, while thoracic erector spinae muscle activity displays a larger increase between loads < 60 % and loads of > 80 % of 1RM.
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At the end of the research, it was found out that there was increased muscle activation in the thoracic erector spinae.
The erector spinae displays a greater proportion of type I muscle fibers than type II muscle fibers, with type I muscle fiber proportion ranging between 63 — 73 % and 62 — 74 % in the lumbar and thoracic regions, respectively.
Comparing the effect of load, Vigotsky et al. (2014) explored the muscle activity of the lumbar (at L3) and thoracic (at T9) erector spinae during the good morning exercise performed with varying relative loads (50 — 90 % of 1RM).
Sirca et al. (1985) reported that the erector spinae at the lower thoracic region (at T9) displayed 73 — 74 % type I muscle fibers, in female individuals.
Mannion et al. (1997) reported that the thoracic erector spinae displayed 62 % type I muscle fibers in female, and 68 % in male individuals.
Initially, this fear may look sensible: lifting several hundred pounds off the floor — levying all the pressure on the back, especially on the erector spinae and low - back muscles — would result in a lumbar and thoracic disaster.