Influência da posição do braço na relação EMG-força em músculos do braço

Oliveira, Anamaria Siriani de; Tucci, Helga Tatiana; Verri, Edson Donizetti; Regalo, Simone Cecílio Hallak

doi:10.1590/s1809-29502008000300002

Cited by 1 publication

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References 20 publications

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“…In addition to the recruitment of motor units, the force that a muscle generates can be influenced by the type of contraction, the contraction speed and muscle length, also depending on the maximum voluntary muscle activation, in other words, the increased recruitment of motor units at a shooting frequency (10,19).…”

Section: Control Experimentalmentioning

confidence: 99%

Changes in muscle strength in elderly women after proprioceptive neuromuscular facilitation based training

Silva

Filho

2015

Fisioter. mov.

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Introduction Proprioceptive neuromuscular facilitation (PNF) can be used to improve the quality of life of both healthy and diseased subjects, including the elderly, who suffer muscular weakness due to aging, leading to an impairment in functional capacity. Objective Verify the effectiveness of PNF as a tool for functional conditioning. Materials and methods We evaluated a total of ten elderly women aged 60–70 years, clinically healthy and physically active. They had the force of motion of hip flexion with knee extension analyzed by an analog dynamometer. They were then randomly and equally divided into experimental (EG) and control group (CG). The GC was instructed to continue with their normal activities while the GE held 15 training sessions in the lower limb (LL) based on the diagonal D1 and D2. Finally, a new collection wrench the two groups was performed and the data compared. Results There was a significant increase in the average strength of GE, on the order of 31% (p < 0.01). The GC also had increased strength, but not significant (p > 0.05). Discussion : The results confirm that the FNP through initial work of readjustment and proprioceptive neuromuscular activation, and after that, conditioning of the muscle fibers (mainly resistive) is capable of amplifying the force developed by the muscle. Conclusion The PNF was effective as training to gain muscle strength, should be better analyzed as a tool fitness, not to cause health risks, have low cost and easy application.

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Section: Control Experimentalmentioning

confidence: 99%