title: The relationships between aerobic fitness, power maintenance and oxygen consumption during intense intermittent exercise.
abstract: This study examined the relationships between VO2max, power maintenance and oxygen consumption during intense intermittent work. Female recreational soccer players were assigned to either a low aerobic power group (LOW, n = 6, mean (SD) VO2max = 34.4 (2.4) mL.kg(-1)min(-1) or to a moderate aerobic power group (MOD, n = 7, VO2max = 47.6 (3.8) mL.kg(-1).min(-1)). VO2 was measured while subjects performed 10 6-s all-out sprints (30-s passive recovery) on a Monark cycle ergometer. LOW and MOD subjects generated similar peak 6-s power (p = .58) but MOD had a smaller decrement in power (% DO) over the 10 sprints (LOW vs MOD: 18.0 (7.6) vs 8.8 (3.7) % DO, p = .02). The MOD group also consumed significantly more oxygen than LOW in 9 of the 10 sprint-recovery cycles (p < .05). Significant relationships were seen between VO2max and the aerobic response to the sprint-recovery series (r = .78, p =.002) as well as between VO2max and % DO (r = -.65, p = .02), while a non-significant relationship was seen between the oxygen consumed during the sprint-recovery cycles and % DO (r = -.41, p = .16). Thus, VO2max appears to be related to both an increased aerobic contribution to sprint-recovery bouts and the enhanced ability of the MOD group to resist fatigue during intense intermittent exercise.
authors.affiliation: University of Victoria, British Columbia, Canada.
authors.forename: D L
authors.initials: DL
authors.lastname: Tomlin
authors.forename: H A
authors.initials: HA
authors.lastname: Wenger
mesh_terms: D000328:Adult; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D010101:Oxygen Consumption; D010809:Physical Fitness; D012420:Running / Q000502:physiology*; D012916:Soccer / Q000502:physiology