Effects of cycle strategy and fibre composition on muscle glycogen depletion pattern and subsequent running economy

Effects of cycle strategy and fibre composition on muscle glycogen depletion pattern and subsequent running economy

Purpose In this study, the effects of variable and constant-intensity cycling on muscle glycogen depletion patterns and subsequent running economy was examined. 60 minutes of cycling at a constant power (CON) or variable intensity (VAR) followed by a treadmill run to determine running economy was co...

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Veröffentlicht in:British journal of sports medicine 2010-05, Vol.44 (6), p.443-448
Hauptverfasser: Suriano, R, Edge, J, Bishop, D
Format: Artikel
Sprache:eng
Schlagworte:
Adult
Bicycling
Biopsy
Comparative analysis
Correlation analysis
Effects
Exercise
Exercise Test
Fitness equipment
Glycogen - metabolism
Humans
Hypotheses
Laboratories
Lactates - metabolism
Male
Muscle Fibers, Skeletal
Oxygen Consumption - physiology
Physical Endurance - physiology
Running
Running - physiology
Sports medicine
Studies
Triathlon
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Zusammenfassung:Purpose In this study, the effects of variable and constant-intensity cycling on muscle glycogen depletion patterns and subsequent running economy was examined. 60 minutes of cycling at a constant power (CON) or variable intensity (VAR) followed by a treadmill run to determine running economy was completed by nine male triathletes (Vo2max = 67.7 (4.9 ml) kg− min−1). During CON, there was greater glycogen depletion in the type I fibres compared with type II (0.08 (0.04) vs 0.02 (0.01) optical density (OD) units; p
ISSN:0306-3674
1473-0480
DOI:10.1136/bjsm.2007.046029