Advanced

Peak torque and knee kinematics during gait after eccentric isokinetic training of quadriceps in healthy subjects

Poletto, P. R.; Santos, H. H.; Salvini, T. F.; Coury, H. J. C. G. and Hansson, Gert-Åke LU (2008) In Revista Brasileira de Fisioterapia 12(4). p.331-337
Abstract
Objective: To evaluate the effects of eccentric isokinetic training on knee range of motion (ROM) of healthy subjects. Methods: The knee extensor and flexor isokinetic peak torques and ROM of flexion/extension and varus/valgus knee movements during gait of 18 healthy men (21.7 +/- 2.2 years; 1.73 +/- 0.10m; 68.7 +/- 9.4kg; body mass index: 22.6 +/- 2 kg/m(2)) were analyzed, before and after six weeks of bilateral eccentric isokinetic training of the knee extensors at 30 degrees/s. Results: The knee extensor torque increased in both limbs (right, from 229 +/- 54 to 304 +/- 53Nm; p<0.01; and left, from 228 +/- 59 to 311 +/- 63Nm; p<0.01), without any difference in torque gain between them. The knee flexor peak torque increased (from... (More)
Objective: To evaluate the effects of eccentric isokinetic training on knee range of motion (ROM) of healthy subjects. Methods: The knee extensor and flexor isokinetic peak torques and ROM of flexion/extension and varus/valgus knee movements during gait of 18 healthy men (21.7 +/- 2.2 years; 1.73 +/- 0.10m; 68.7 +/- 9.4kg; body mass index: 22.6 +/- 2 kg/m(2)) were analyzed, before and after six weeks of bilateral eccentric isokinetic training of the knee extensors at 30 degrees/s. Results: The knee extensor torque increased in both limbs (right, from 229 +/- 54 to 304 +/- 53Nm; p<0.01; and left, from 228 +/- 59 to 311 +/- 63Nm; p<0.01), without any difference in torque gain between them. The knee flexor peak torque increased (from 114 +/- 30 to 123 +/- 22Nm; p<0.05), but the hamstrings/quadriceps (H/Q) ratio decreased (from 0.5 +/- 0.08 to 0.39 +/- 0.07; p<0.01) after the training. There were no differences in the flexion/extension and varus/valgus movements after the training, except for a small change (4 degrees) in valgus for the left knee, Conclusions: The eccentric isokinetic training of the knee extensors increased the extensor torque and decreased the H/Q ratio, although the effect on the gait pattern seemed negligible in healthy subjects. Associated training for flexors, complementary to the extensor training, seems to be necessary for balance between knee agonists and antagonists. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
torque, electrogoniometer, gait, knee, eccentric training
in
Revista Brasileira de Fisioterapia
volume
12
issue
4
pages
331 - 337
publisher
Associacao Brasileira Pesquisa Pos-Graduacao Fisioterapia-Abrapg-Ft
external identifiers
  • wos:000259382500013
  • scopus:58149105330
ISSN
1809-9246
language
English
LU publication?
yes
id
6f346452-71e7-4e49-96dc-0c5298109f92 (old id 1286965)
alternative location
http://www.scielo.br/pdf/rbfis/v12n4/a13v12n4.pdf
date added to LUP
2009-01-28 11:01:39
date last changed
2017-05-21 03:46:55
@article{6f346452-71e7-4e49-96dc-0c5298109f92,
  abstract     = {Objective: To evaluate the effects of eccentric isokinetic training on knee range of motion (ROM) of healthy subjects. Methods: The knee extensor and flexor isokinetic peak torques and ROM of flexion/extension and varus/valgus knee movements during gait of 18 healthy men (21.7 +/- 2.2 years; 1.73 +/- 0.10m; 68.7 +/- 9.4kg; body mass index: 22.6 +/- 2 kg/m(2)) were analyzed, before and after six weeks of bilateral eccentric isokinetic training of the knee extensors at 30 degrees/s. Results: The knee extensor torque increased in both limbs (right, from 229 +/- 54 to 304 +/- 53Nm; p&lt;0.01; and left, from 228 +/- 59 to 311 +/- 63Nm; p&lt;0.01), without any difference in torque gain between them. The knee flexor peak torque increased (from 114 +/- 30 to 123 +/- 22Nm; p&lt;0.05), but the hamstrings/quadriceps (H/Q) ratio decreased (from 0.5 +/- 0.08 to 0.39 +/- 0.07; p&lt;0.01) after the training. There were no differences in the flexion/extension and varus/valgus movements after the training, except for a small change (4 degrees) in valgus for the left knee, Conclusions: The eccentric isokinetic training of the knee extensors increased the extensor torque and decreased the H/Q ratio, although the effect on the gait pattern seemed negligible in healthy subjects. Associated training for flexors, complementary to the extensor training, seems to be necessary for balance between knee agonists and antagonists.},
  author       = {Poletto, P. R. and Santos, H. H. and Salvini, T. F. and Coury, H. J. C. G. and Hansson, Gert-Åke},
  issn         = {1809-9246},
  keyword      = {torque,electrogoniometer,gait,knee,eccentric training},
  language     = {eng},
  number       = {4},
  pages        = {331--337},
  publisher    = {Associacao Brasileira Pesquisa Pos-Graduacao Fisioterapia-Abrapg-Ft},
  series       = {Revista Brasileira de Fisioterapia},
  title        = {Peak torque and knee kinematics during gait after eccentric isokinetic training of quadriceps in healthy subjects},
  volume       = {12},
  year         = {2008},
}