Ischemic Preconditioning and Muscle Force Capabilities
| Autor: | Guillermo Sánchez-Martínez, João Carlos Bouzas Marins, Pedro L. Valenzuela, Rosalía Martín-Candilejo, Manuel Sillero-Quintana, Pedro de la Villa |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Male
Warm-Up Exercise Repetition maximum Physical Therapy Sports Therapy and Rehabilitation 030204 cardiovascular system & hematology Bench press Biceps 03 medical and health sciences 0302 clinical medicine Humans Occlusion pressure Medicine Orthopedics and Sports Medicine Ischemic Preconditioning Muscle Skeletal Exercise Muscle force Cross-Over Studies business.industry Sham Intervention Skin temperature Resistance Training 030229 sport sciences General Medicine Ischemic preconditioning business Nuclear medicine |
| Zdroj: | Journal of Strength and Conditioning Research. 35:2187-2192 |
| ISSN: | 1064-8011 |
| Popis: | Valenzuela, PL, Martín-Candilejo, R, Sánchez-Martínez, G, Bouzas Marins, JC, de la Villa, P, and Sillero-Quintana, M. Ischemic preconditioning and muscle force capabilities. J Strength Cond Res 35(8): 2187-2192, 2021-This study analyzed the effects of ischemic preconditioning (IPC) on muscle force capabilities. Sixteen male subjects participated in this randomized, crossover, sham-controlled study. They were assigned to either IPC (3 × 5 minutes at 220 mm Hg in both arms with 5-minute rests) or a sham intervention (SHAM) (occlusion pressure set at 10 mm Hg). Forty minutes later, their force capabilities on the bench press exercise were assessed (load-velocity relationship with light, moderate, and heavy loads [30, 50, and 70% body mass, respectively]; 1 repetition maximum [1RM]; and number of repetitions to failure in 3 sets with 60% RM). The skin temperature (Tsk) of the pectoral and biceps muscles was analyzed as a secondary endpoint by means of infrared thermography. A significant decrease in the Tsk of the pectoral and biceps muscles was observed after the intervention (p0.01) and before the warm-up (p0.05) in IPC, but not in SHAM. However, exercise resulted in a similar Tsk increase in the pectoral muscles in both conditions (p0.05). No significant differences (p0.05 for all) were observed between conditions in the mean velocity attained with light (1.11 ± 0.11 and 1.09 ± 0.14 m·s-1, respectively), moderate (0.83 ± 0.14 and 0.83 ± 0.16 m·s-1), nor heavy loads (0.56 ± 0.17 and 0.54 ± 0.16 m·s-1), in 1RM (75.0 ± 18.9 and 73.1 ± 15.0 kg for IPC and SHAM, respectively; p = 0.181), nor in the number of repetitions performed (52 ± 13 and 54 ± 16 repetitions, p = 0.492). In summary, IPC decreased Tsk locally (biceps) and remotely (pectoral). However, it did not alter muscle force capabilities nor the Tsk response to exercise. |
| Databáze: | OpenAIRE |
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