期刊
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
卷 24, 期 4, 页码 656-666出版社
WILEY
DOI: 10.1111/sms.12060
关键词
near-infrared spectroscopy; neuromuscular; heat strain; cold therapy; fatigue; muscle damage; cricket
资金
- Cricket Australia
This study examined the effects of post-exercise cooling on recovery of neuromuscular, physiological, and cerebral hemodynamic responses after intermittent-sprint exercise in the heat. Nine participants underwent three post-exercise recovery trials, including a control (CONT), mixed-method cooling (MIX), and cold-water immersion (10 C; CWI). Voluntary force and activation were assessed simultaneously with cerebral oxygenation (nearinfrared spectroscopy) pre-and post-exercise, postintervention, and 1-h and 24-h post-exercise. Measures of heart rate, core temperature, skin temperature, muscle damage, and inflammation were also collected. Both cooling interventions reduced heart rate, core, and skin temperature post-intervention (P < 0.05). CWI hastened the recovery of voluntary force by 12.7 +/- 11.7% (mean +/- SD) and 16.3 +/- 10.5% 1-h post-exercise com-pared to MIX and CONT, respectively (P < 0.01). Voluntary force remained elevated by 16.1 +/- 20.5% 24-h post-exercise after CWI compared to CONT (P < 0.05). Central activation was increased post-intervention and 1-h post-exercise with CWI compared to CONT (P < 0.05), without differences between conditions 24-h post-exercise (P > 0.05). CWI reduced cerebral oxygenation compared to MIX and CONT post-intervention (P < 0.01). Furthermore, cooling interventions reduced cortisol 1-h post-exercise (P < 0.01), although only CWI blunted creatine kinase 24-h post-exercise compared to CONT (P < 0.05). Accordingly, improvements in neuromuscular recovery after post-exercise cooling appear to be disassociated with cerebral oxygenation, rather reflecting reductions in thermoregulatory demands to sustain force production.
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