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01.03.2012 | Original Article | Ausgabe 3/2012

European Journal of Applied Physiology 3/2012

Physiological responses in rock climbing with repeated ascents over a 10-week period

Zeitschrift:
European Journal of Applied Physiology > Ausgabe 3/2012
Autoren:
Vanesa España-Romero, Randall L. Jensen, Xavier Sanchez, Megan L. Ostrowski, Jay E. Szekely, Phillip B. Watts
Wichtige Hinweise
Communicated by Susan A. Ward.

Abstract

The purpose was to analyze the physiological responses and energy expenditure during repeated ascents of the same climbing route over a 10-week period. Nine climbers completed nine ascents of a specific route spaced 1 week apart. Expired air was analyzed continuously during each ascent, and time of ascent was recorded to the nearest second. Energy expenditure during climbing (EECLM), and during climbing +10 min recovery (EETOT) was calculated by the Weir and Zuntz equations. Differences among ascents 1, 4, 6 and 9 were analyzed by repeated measures ANOVA. Climbing time was longer for ascent 1 compared with ascents 4, 6 and 9 (P < 0.001). Differences were found for EECLM (kcal; P < 0.001), between ascent 1 versus 6 and 9 and ascent 4 versus 9, using both Zuntz and Weir equations. Also, differences were observed in EE for recovery (P < 0.05) and EETOT (P < 0.05) using both equations. Repeated ascents of a climbing route decreased the climbing time and absolute energy expenditure during climbing. Initially, the decrease in climbing energy expenditure is accompanied by an increase in energy expenditure during recovery; however, by the ninth ascent, the total energy expenditure of the task is lower than for ascent 1.

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