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- Title
Electromyographic evaluation of high-intensity elastic resistance exercises for lower extremity muscles during bed rest.
- Authors
Vinstrup, Jonas; Skals, Sebastian; Calatayud, Joaquin; Jakobsen, Markus; Sundstrup, Emil; Pinto, Matheus; Izquierdo, Mikel; Wang, Yuling; Zebis, Mette; Andersen, Lars; Jakobsen, Markus Due; Pinto, Matheus Daros; Zebis, Mette K; Andersen, Lars Louis
- Abstract
<bold>Purpose: </bold>Prolonged hospital bed rest after severe injury or disease leads to rapid muscle atrophy and strength loss. Therefore, the main aim of this study was to evaluate the efficacy of lower extremity strengthening exercises using elastic resistance that can be performed while lying in a hospital bed.<bold>Methods: </bold>Using a cross-sectional design, 22 healthy individuals performed three consecutive repetitions of 14 different lower extremity exercises using elastic resistance, with a perceived intensity corresponding to 8 on the Borg CR-10 scale. Surface electromyography was measured on 13 lower extremity muscles and normalized to the maximal EMG (nEMG). Likewise, exercise satisfaction was evaluated by a questionnaire.<bold>Results: </bold>All participants were able to perform all exercises without discomfort and generally rated them satisfactory. High levels of muscle activity were observed for all prime movers. For example, the "femoris muscle setting" exercise showed high levels of muscle activity for rectus femoris, vastus lateralis, and vastus medialis (79, 75, and 79% nEMG, respectively), while biceps femoris and semitendinosus were highly active during the prone knee flexion exercise with (72 and 71% nEMG, respectively) and without Kinesiology Tape (73 and 77% nEMG, respectively).<bold>Conclusion: </bold>High levels of muscle activity in the lower extremities can be achieved using elastic resistance exercises performed when lying in a hospital bed. Even though performed on healthy individuals, the present study has the potential to provide a reference table of exercises to select from when individualizing and progressing strengthening exercises during the early rehabilitation of bedridden individuals.
- Subjects
ACCIDENTS; MUSCLES; ATROPHY; MYTHOMANIA; EXERCISE; LEG physiology; SKELETAL muscle physiology; BED rest; COMPARATIVE studies; ELECTROMYOGRAPHY; RESEARCH methodology; MEDICAL cooperation; MUSCLE contraction; QUESTIONNAIRES; RESEARCH; EVALUATION research; MUSCLE weakness; RESISTANCE training; PREVENTION
- Publication
European Journal of Applied Physiology, 2017, Vol 117, Issue 7, p1329
- ISSN
1439-6319
- Publication type
journal article
- DOI
10.1007/s00421-017-3620-2