Myofascial force transmission in the lower limb: An in vivo experiment.

Autor: Marinho HVR; Department of Physical Education and Sport, Universidade Estadual de Montes Claros, Rui Braga Avenue, Montes Claros, MG 39401-089, Brazil; Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antônio Carlos Avenue, Belo Horizonte, MG 31270-901, Brazil., Amaral GM; Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antônio Carlos Avenue, Belo Horizonte, MG 31270-901, Brazil; Department of Physical Therapy, Centro Universitário de Belo Horizonte, 1685 Prof Mario Werneck Avenue, Belo Horizonte, MG 30455-610, Brazil., Moreira BS; Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antônio Carlos Avenue, Belo Horizonte, MG 31270-901, Brazil., Santos TRT; Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antônio Carlos Avenue, Belo Horizonte, MG 31270-901, Brazil; Department of Physical Therapy, Centro Universitário de Belo Horizonte, 1685 Prof Mario Werneck Avenue, Belo Horizonte, MG 30455-610, Brazil., Magalhães FA; Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antônio Carlos Avenue, Belo Horizonte, MG 31270-901, Brazil; Department of Physical Therapy, Centro Universitário de Belo Horizonte, 1685 Prof Mario Werneck Avenue, Belo Horizonte, MG 30455-610, Brazil., Souza TR; Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antônio Carlos Avenue, Belo Horizonte, MG 31270-901, Brazil; Department of Physical Therapy, Universidade Federal de Minas Gerais, 6627 Antônio Carlos Avenue, Belo Horizonte, MG 31270-901, Brazil., Fonseca ST; Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais, 6627 Antônio Carlos Avenue, Belo Horizonte, MG 31270-901, Brazil; Department of Physical Therapy, Universidade Federal de Minas Gerais, 6627 Antônio Carlos Avenue, Belo Horizonte, MG 31270-901, Brazil. Electronic address: sergioteixeirafonseca@gmail.com.
Jazyk: angličtina
Zdroj: Journal of biomechanics [J Biomech] 2017 Oct 03; Vol. 63, pp. 55-60. Date of Electronic Publication: 2017 Aug 10.
DOI: 10.1016/j.jbiomech.2017.07.026
Abstrakt: Anatomical studies have shown structural continuity between the lumbopelvic region and the lower limb. The present study aimed to verify how simultaneous changes on knee/hip positions modify the ankle's resting position and passive torque. Thirty-seven subjects underwent an isokinetic assessment of ankle passive torque. The relationship between the absolute values of ankle passive resistance torque and the ankle angular position was used to calculate the dependent variables: ankle resting position (position in which the passive resistance torque is zero); and ankle passive torque at 0° (torque at the neutral position of the ankle in the sagittal plane). These measures were carried out under three test conditions: 0° at knee and 0° at hip (0°/0°); 90° at knee and 90° at hip (90°/90°); and, 135° at knee and 120° at hip (135°/120°). The results demonstrated that the ankle resting position shifted towards dorsiflexion when knee/hip position changed from 0°/0° to 90°/90° and shifted towards plantar flexion when knee/hip position changed from 90°/90° to 135°/120°, achieving values close to the ones at the position 0°/0°. Similarly, passive torque reduced when knee/hip position changed from 0°/0° to 90°/90°, but it increased when knee/hip position changed from 90°/90° to 135°/120°. The unexpected changes observed in ankle passive torque and resting position due to changes in knee and hip from 90°/90° to 135°/120°, cannot be explained exclusively by forces related to tissues crossing the knee and ankle. This result supports the existence of myofascial force transmission among lower limb joints.
(Copyright © 2017 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: