| Titre : | Assessment of Muscle Endurance of the Knee Extensor Muscles in Adolescents With Spastic Cerebral Palsy Using a Submaximal Repetitions-to-Fatigue Protocol (2014) |
| Auteurs : | Maaike M. Eken ; Annet J. Dallmeijer ; Caroline A. Doorenbosch |
| Type de document : | Article |
| Dans : | Archives of Physical Medicine and Rehabilitation (2014/10, 2014) |
| Article en page(s) : | p. 1888-1894 |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Electromyographie ; Force musculaire ; Paralysie cérébrale ; Rééducation et réadaptation |
| Mots-clés: | Cerebral palsy ; Electromyography ; Muscle strength |
| Résumé : |
Objective To compare muscle endurance in adolescents with spastic cerebral palsy (CP) with typically developing (TD) peers using a submaximal repetitions-to-fatigue (RTF) protocol. Design Cross sectional. Setting Human motion laboratory. Participants Adolescents with spastic CP (n=16; Gross Motor Function Classification System levels I or II) and TD adolescents (n=18) within the age range of 12 to 19 years old. Interventions Not applicable. Main Outcome Measures Each participant performed 3 RTF tests at different submaximal loads, ranging from 50% to 90% of their maximal voluntary knee extension torque. The relation between the number of repetitions (repetition maximum [RM]) and imposed submaximal relative (percent of maximal voluntary torque [%MVT]) and absolute (Nm/kg) torque was quantified. To compare adolescents with CP with TD adolescents, a mixed linear model was used to construct load endurance curves. Surface electromyography of quadriceps muscles was measured to assess changes in normalized amplitude and median frequency (MF) as physiological indicators of muscle fatigue. Results Adolescents with CP showed a larger decrease in %MVT per RM than TD adolescents (P<.05 td adolescents showed substantial higher absolute load endurance curves than with cp but they did not show a difference in slope. electromyographic normalized amplitude increased significantly the quadriceps muscles all tests for both groups. mf decreased low and medium loads. responses differ between groups indicating that similar levels of muscle fatigue were reached.> Conclusions Adolescents with CP show slightly lower muscle endurance compared with TD adolescents on a submaximal RTF protocol, which is in contrast with earlier findings in a maximal voluntary fatigue protocol. Accordingly, adolescents with CP have a reduced capacity to endure activities at similar relative loads compared with TD adolescents. |
| Disponible en ligne : | Oui |
| En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999314004055 |
Bibliothèques HE Vinci
