Hypoalgesia following isometric handgrip exercise with and without blood flow restriction is not mediated by discomfort nor changes in systolic blood pressure
| Autor: | Zachary W. Bell, Vickie Wong, Takashi Abe, Robert W. Spitz, Jeremy P. Loenneke, Yujiro Yamada, Jun Seob Song |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male Pain Threshold medicine.medical_specialty Adolescent Arbitrary unit Diastole Blood Pressure Physical Therapy Sports Therapy and Rehabilitation Isometric exercise Young Adult Isometric Contraction Internal medicine Threshold of pain medicine Humans Handgrip exercise Orthopedics and Sports Medicine Exercise Hypoalgesia Hand Strength business.industry Hemodynamics Arterial occlusion Blood pressure Cardiology Female business |
| Zdroj: | Journal of Sports Sciences. 40:518-526 |
| ISSN: | 1466-447X 0264-0414 |
| DOI: | 10.1080/02640414.2021.2003569 |
| Popis: | The purpose was to examine the effect of isometric handgrip exercise with and without blood flow restriction on exercise-induced hypoalgesia at a local and non-local site, and its underlying mechanisms. Sixty participants (21 males & 39 females, 18-35 years old) completed 3 trials: four sets of 2-minute isometric handgrip exercise at 30% of maximum handgrip strength; isometric handgrip exercise with blood flow restriction at 50% of arterial occlusion pressure; and a non-exercise time-matched control. Pain thresholds increased similarly in both exercise conditions at a local (exercise conditions: ~0.45 kg/cm2, control: ~-0.04 kg/cm2) and non-local site (exercise conditions: ~0.37 kg/cm2, control: ~-0.16 kg/cm2). Blood flow restriction induced greater feelings of discomfort compared to exercise alone [median difference (95% credible interval) of 4.5 (0.5, 8.6) arbitrary units]. Blood pressure increased immediately after exercise (systolic: 10.3 mmHg, diastolic: 7.7 mmHg) and decreased in recovery. There was no within participant correlation between changes in discomfort and pressure pain threshold. A bout of isometric handgrip exercise with or without blood flow restriction can provide exercise-induced hypoalgesia at a local and non-local site. However, discomfort and changes in systolic blood pressure do not explain this response. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|