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| Banister TRIMP× | EPOC× | |
|---|---|---|
| Fagområde | Idrætsvidenskab | Idrætsvidenskab |
| Familie | Hypothesis test | Hypothesis test |
| Oprindelsesår≠ | 1975 | 1986 |
| Ophavsperson≠ | Eric Banister | Brehm & Gutin |
| Type≠ | mathematical modeling | post-exercise metabolic measurement |
| Oprindelig kilde≠ | Banister, E. W., Calvert, T. W., Savage, M. V., & Bach, T. (1975). A systems model of training responses and its relationship to muscular strength. Transactions of the ASME, 97(3), 177-183. link ↗ | 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 ↗ |
| Aliasser≠ | TRIMP, training impulse, fitness-fatigue model | afterburn effect, recovery oxygen uptake, post-exercise metabolic elevation, APMR |
| Relaterede≠ | 3 | 5 |
| Resumé≠ | The Training Impulse (TRIMP) model, developed by Eric Banister and colleagues (1975), quantifies the physiological stimulus of a training session by combining duration and intensity. The Banister fitness-fatigue model proposes that training effects on performance follow two opposing dynamics: fitness (beneficial) accumulates with time constant tau_f (~42 days) and fatigue (temporary decrement) accumulates faster but decays quickly (tau_d ~5-10 days). By tracking TRIMP and modeling these two processes, coaches can predict performance trajectories and optimize training load. Although superseded by newer frameworks, the Banister model remains influential and intuitive. | 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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