Vertaile menetelmiä
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| Laktaattikynnys (OBLA)× | EPOC× | |
|---|---|---|
| Tieteenala | Liikuntatiede | Liikuntatiede |
| Menetelmäperhe | Hypothesis test | Hypothesis test |
| Syntyvuosi≠ | 1973 | 1986 |
| Kehittäjä≠ | Klaus Wasserman | Brehm & Gutin |
| Tyyppi≠ | incremental blood sampling test | post-exercise metabolic measurement |
| Alkuperäislähde≠ | Wasserman, K., Whipp, B. J., Koyal, S. N., & Beaver, W. L. (1973). Anaerobic threshold and respiratory gas exchange during exercise. Journal of Applied Physiology, 35(2), 236-243. DOI ↗ | Brehm, B. A., & Gutin, B. (1986). Recovery energy expenditure for steady state exercise in runners and non-runners. Medicine and Science in Sports and Exercise, 18(4), 441-446. link ↗ |
| Rinnakkaisnimet | OBLA, anaerobic threshold, lactate turnpoint, maximal lactate steady state | afterburn effect, recovery oxygen uptake, post-exercise metabolic elevation, APMR |
| Liittyvät | 5 | 5 |
| Tiivistelmä≠ | Lactate threshold, also termed the onset of blood lactate accumulation (OBLA), is the exercise intensity at which blood lactate concentration increases rapidly and non-linearly. Initially defined by Klaus Wasserman in 1973, the concept describes the physiological transition from aerobic to anaerobic metabolism. As exercise intensity increases, lactate production and clearance remain balanced until a critical threshold is exceeded, after which lactate rapidly accumulates in the blood, signaling a shift toward anaerobic energy pathways. This parameter is crucial in endurance sports and clinical exercise assessment. | Excess post-exercise oxygen consumption (EPOC), commonly called the 'afterburn effect', is the elevated rate of oxygen uptake and metabolic activity that persists after exercise ends. First systematically studied by Brehm and Gutin (1986), EPOC reflects the energy cost of restoring homeostasis after physical exertion. During recovery, the body must replenish phosphate stores, clear lactate, restore oxygen debt to muscles, increase body temperature, and return cardiovascular and respiratory function to baseline. This lingering metabolic elevation results in continued calorie burning long after exercise stops, a phenomenon of significant interest in sports science and fitness. |
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