title: Metabolic cost of ice and in-line skating in Division I collegiate ice hockey players.
abstract: This study compared the metabolic cost of ice skating and in-line skating in Division I collegiate hockey players. Heart rate and oxygen uptake were compared between the two conditions at three skating velocities: 12.5 km.h-1, 16.5 km.h-1, and 20 km.h-1. Twelve subjects were tested on two occasions: on ice (ice skating) and off ice (in-line skating). They skated for 3 min at each velocity, with heart rate recording and gas collection taking place during the final 30 s of each stage. A two-factor repeated measures ANOVA revealed that the chosen velocities affected the two conditions differently for heart rate (p < .01). No interaction between condition and velocity was found for absolute (p < .43) and relative (p < .15) oxygen uptake. In-line skating produced significantly greater heart rate values and absolute oxygen uptake values than ice skating at all three velocities (p < .05). In-line skating also generated significantly greater relative oxygen uptake values at 16.5 km.h-1 and 20 km.h-1. Results suggest that the metabolic cost of in-line skating is greater than that of ice skating for collegiate ice hockey players when skating at three velocities similar to those skated during game conditions.
authors.affiliation: Dept. of Physical Education, St. Olaf College, Northfield, MN 55057.
authors.forename: T R
authors.initials: TR
authors.lastname: Carroll
authors.forename: D
authors.initials: D
authors.lastname: Bacharach
authors.forename: J
authors.initials: J
authors.lastname: Kelly
authors.forename: E
authors.initials: E
authors.lastname: Rudrud
authors.forename: P
authors.initials: P
authors.lastname: Karns
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001696:Biomechanical Phenomena; D001784:Blood Gas Analysis; D004734:Energy Metabolism; D006339:Heart Rate; D006688:Hockey; D006801:Humans; D008991:Monitoring, Physiologic; D010101:Oxygen Consumption; D012861:Skating / Q000145:classification / Q000502:physiology*