Concentric versus eccentric cycling at equal power output or effort perception: Neuromuscular alterations and muscle pain
| Autor: | Davy Laroche, Pierre Clos, Adrien Mater, Romuald Lepers |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
genetic structures Knee extensors Electromyography business.industry Physical Therapy Sports Therapy and Rehabilitation Myalgia Concentric Oxygen uptake Bicycling Intensity (physics) Physical medicine and rehabilitation Torque Humans Medicine Eccentric Perception Orthopedics and Sports Medicine Power output Effort perception Muscle Skeletal business Cycling human activities Muscle Contraction |
| Zdroj: | Scandinavian Journal of Medicine & Science in Sports. 32:45-59 |
| ISSN: | 1600-0838 0905-7188 |
| DOI: | 10.1111/sms.14053 |
| Popis: | This study aimed to compare neuromuscular alterations and perceptions of effort and muscle pain induced by concentric and eccentric cycling performed at the same power output or effort perception. Fifteen participants completed three 30-min sessions: one in concentric at 60% peak power output (CON) and two in eccentric, at the same power output (ECCPOWER ) or same perceived effort (ECCEFFORT ). Muscle pain, perception of effort, oxygen uptake as well as rectus femoris and vastus lateralis electromyographic activities were collected when pedaling. The knee extensors maximal voluntary contraction (MVC) torque, the torque evoked by double stimulations at 100 Hz and 10 Hz (Dt100; Dt10), and the voluntary activation level (VAL) were evaluated before and after exercise. Power output was higher in ECCEFFORT than CON (89.1 ± 23.3% peak power). Muscle pain and effort perception were greater in CON than ECCPOWER (p 0.43). MVC torque, Dt100, and VAL dropped in all conditions (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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