Open AccessCaffeine Increases Performance in Cross-country Double-Poling Time Trial Exercise
Author(s) -
Hans Kristian Stadheim,
Bent Kvamme,
Raymond Olsen,
Christian A. Drevon,
John L. Ivy,
Jørgen Jensen
Publication year - 2013
Publication title -
medicine and science in sports and exercise
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.703
H-Index - 224
eISSN - 1530-0315
pISSN - 0195-9131
DOI - 10.1249/mss.0b013e3182967948
Subject(s) - crossover study , cross country , time trial , caffeine , placebo , medicine , cross over , zoology , blood lactate , physical therapy , chemistry , heart rate , biology , blood pressure , international economics , alternative medicine , pathology , economics , medical physics
Caffeine (CAF) improves performance in both short- and long-duration running and cycling where performance relies on power output and endurance capacity of leg muscles. No studies have so far tested the effects of CAF while using the double-poling (DP) technique in cross-country skiing. When using the DP technique, arm muscles provide the speed-generating force and therefore play an important role in performance outcome. The metabolism of arm muscles differs from that of leg muscles. Thus, results from studies on leg muscles and CAF may not be directly applicable to exercises while using the DP technique in cross-country skiing. The purpose of our study was therefore to investigate the effects of CAF on exercise performance in DP.
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