| Autor: |
Sharma, Avish P., Saunders, Philo U., Garvican-Lewis, Laura A., Clark, Brad, Stanley, Jamie, Robertson, Eileen Y., Thompson, Kevin G. |
| Předmět: |
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| Zdroj: |
International Journal of Sports Physiology & Performance; 2017 Supplement2, Vol. 12, pS2-147-S2-152, 6p, 2 Charts, 1 Graph |
| Abstrakt: |
Purpose: To determine the effect of training at 2100-m natural altitude on running speed (RS) during training sessions over a range of intensities relevant to middle-distance running performance. Methods: In an observational study, 19 elite middle-distance runners (mean ± SD age 25 ± 5 y, VO2max, 71 ± 5 mL ⋅ kg-1 ⋅ min-1) completed either 4-6 wk of sea-level training (CON, n = 7) or a 4- to 5-wk natural altitude-training camp living at 2100 m and training at 1400-2700 m (ALT, n = 12) after a period of sea-level training. Each training session was recorded on a GPS watch, and athletes also provided a score for session rating of perceived exertion (sRPE). Training sessions were grouped according to duration and intensity. RS (km/h) and sRPE from matched training sessions completed at sea level and 2100 m were compared within ALT, with sessions completed at sea level in CON describing normal variation. Results: In ALT, RS was reduced at altitude compared with sea level, with the greatest decrements observed during threshold- and VO2 max-intensity sessions (5.8% and 3.6%, respectively). Velocity of low-intensity and race-pace sessions completed at a lower altitude (1400 m) and/or with additional recovery was maintained in ALT, though at a significantly greater sRPE (P = .04 and .05, respectively). There was no change in velocity or sRPE at any intensity in CON. Conclusion: RS in elite middle-distance athletes is adversely affected at 2100-m natural altitude, with levels of impairment dependent on the intensity of training. Maintenance of RS at certain intensities while training at altitude can result in a higher perceived exertion. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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