Peak torque and knee kinematics during gait after eccentric isokinetic training of quadriceps in healthy subjects
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| Natura: | Artículo científico |
| Lingua: | en |
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Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia
2008
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| _version_ | 1876434204375384064 |
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| author | PR Poletto |
| author_facet | PR Poletto |
| contents | Peak torque and knee kinematics during gait after eccentric isokinetic training of quadriceps in healthy subjects PR Poletto HH Santos Tania Fatima Salvini HJCG Coury GA Hansson Salud gait knee torque Electrogoniometer eccentric training 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±2kg/m²) were analyzed, before and after six weeks of bilateral eccentric isokinetic training of the knee extensors at 30º/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°) 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. 2008 artículo científico 1413-3555 https://www.redalyc.org/articulo.oa?id=235016539013 en http://www.redalyc.org/revista.oa?id=2350 Revista Brasileira de Fisioterapia application/pdf Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia Revista Brasileira de Fisioterapia (Brasil) Num.4 Vol.12 |
| format | Artículo científico |
| id | redalyc_235016539013 |
| institution | Redalyc |
| language | en |
| publishDate | 2008 |
| publisher | Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia |
| spellingShingle | Peak torque and knee kinematics during gait after eccentric isokinetic training of quadriceps in healthy subjects PR Poletto Salud gait knee torque Electrogoniometer eccentric training Peak torque and knee kinematics during gait after eccentric isokinetic training of quadriceps in healthy subjects PR Poletto HH Santos Tania Fatima Salvini HJCG Coury GA Hansson Salud gait knee torque Electrogoniometer eccentric training 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±2kg/m²) were analyzed, before and after six weeks of bilateral eccentric isokinetic training of the knee extensors at 30º/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°) 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. 2008 artículo científico 1413-3555 https://www.redalyc.org/articulo.oa?id=235016539013 en http://www.redalyc.org/revista.oa?id=2350 Revista Brasileira de Fisioterapia application/pdf Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia Revista Brasileira de Fisioterapia (Brasil) Num.4 Vol.12 |
| title | Peak torque and knee kinematics during gait after eccentric isokinetic training of quadriceps in healthy subjects |
| topic | Salud gait knee torque Electrogoniometer eccentric training |
| url | https://www.redalyc.org/articulo.oa?id=235016539013 |