An examination of neuromuscular and metabolic fatigue thresholds
作者： Haley C Bergstrom , Terry J Housh , Kristen C Cochrane , Nathaniel DM Jenkins , Robert W Lewis
DOI: 10.1088/0967-3334/34/10/1253
关键词:
摘要: This study examined the relationships among physical working capacity at fatigue threshold (PWCFT), power outputs associated with gas exchange (PGET) and respiratory compensation point (PRCP), critical (CP) to identify possible physiological mechanisms underlying onset of neuromuscular fatigue. Ten participants (mean ± SD age: 20 1 years) performed a maximal incremental cycle ergometer test determine PWCFT, PGET, PRCP. CP was determined from 3 min all-out test. The PWCFT (197 55 W), PRCP (212 50 W), (208 63 W) were significantly greater than PGET (168 40 W), but there no significant differences PRCP, CP. All thresholds inter-4 (r = 0.794–0.958). 17% estimates for PWCFT than likely related in that underlie these thresholds, while non-significant difference high correlation between PWCFT and suggested hyperkalemia may both thresholds. Furthermore, it is 5% lower estimate could more accurately reflect demarcation heavy severe exercise intensity domains.
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