Skeletal Muscle Microvascular Adaptations Following Regular Cold Water Immersion
| Autor: | Greig Watson, Chris R. Abbiss, Jamie Stanley, Andrew Govus, Mohammed Ihsan, Scott Cocking, Hui C. Choo |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Male
Physical Therapy Sports Therapy and Rehabilitation 030204 cardiovascular system & hematology Microcirculation Hemoglobins Young Adult 03 medical and health sciences Oxygen Consumption 0302 clinical medicine Endurance training Immersion Occlusion Area under curve Humans Medicine Popliteal Artery Orthopedics and Sports Medicine Hyperemic response Muscle Skeletal Spectroscopy Near-Infrared business.industry Skeletal muscle 030229 sport sciences Adaptation Physiological Cold Temperature medicine.anatomical_structure Water immersion Area Under Curve Oxyhemoglobins Anesthesia Cuff Physical Endurance business Physical Conditioning Human |
| Zdroj: | International Journal of Sports Medicine. 41:98-105 |
| ISSN: | 1439-3964 0172-4622 |
| DOI: | 10.1055/a-1044-2397 |
| Popis: | This study investigated the effect of endurance training and regular post-exercise cold water immersion on changes in microvascular function. Nine males performed 3 sessions∙wk-1 of endurance training for 4 weeks. Following each session, participants immersed one leg in a cold water bath (10°C; COLD) for 15 min while the contra-lateral leg served as control (CON). Before and after training, microvascular function of the gastrocnemius was assessed using near-infrared spectroscopy, where 5 min of popliteal artery occlusion was applied and monitored for 3 min upon cuff release. Changes in Hbdiff (oxyhemoglobin – deoxyhemoglobin) amplitude (O-AMP), area under curve (O-AUC) and estimated muscle oxygen consumption (mVO2) were determined during occlusion, while the reperfusion rate (R-RATE), reperfusion amplitude (R-AMP) and hyperemic response (HYP) were determined following cuff release. Training increased O-AMP (p=0.010), O-AUC (p=0.011), mVO2 (p=0.013), R-AMP (p=0.004) and HYP (p=0.057). Significant time (p=0.024) and condition (p=0.026) effects were observed for R-RATE, where the increase in COLD was greater compared with CON (p=0.026). In conclusion, R-RATE following training was significantly higher in COLD compared with CON, providing some evidence for enhanced microvascular adaptations following regular cold water immersion. |
| Databáze: | OpenAIRE |
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