TY - JOUR
T1 - Training with Low Muscle Glycogen Enhances Fat Metabolism in Well-Trained Cyclists.
AU - Hulston, CJ
AU - Venables, Michelle
AU - Mann, Christopher
AU - Martin, C
AU - Philp, A
AU - Baar, K
AU - Jeukendrup, Asker
PY - 2010/3/25
Y1 - 2010/3/25
N2 - PURPOSE:: To determine the effects of training with low muscle glycogen on exercise performance, substrate metabolism, and skeletal muscle adaptation. METHODS:: Fourteen well-trained cyclists were pair-matched and randomly assigned to HIGH or LOW-glycogen training groups. Subjects performed 9 aerobic training (AT; 90 min at 70% VO2max) and 9 high-intensity interval-training sessions (HIT; 8 x 5 min efforts, 1 min recovery) during a 3-wk period. HIGH trained once daily, alternating between AT on day 1 and HIT the following day, whereas LOW trained twice every second day, firstly performing AT and then 1 h later performing HIT. Pre and post-training measures were a resting muscle biopsy, metabolic measures during steady state cycling (SS), and a time trial (TT). RESULTS:: Power output during HIT was 297 +/- 8 W in LOW compared with 323 +/- 9 W in HIGH (P
AB - PURPOSE:: To determine the effects of training with low muscle glycogen on exercise performance, substrate metabolism, and skeletal muscle adaptation. METHODS:: Fourteen well-trained cyclists were pair-matched and randomly assigned to HIGH or LOW-glycogen training groups. Subjects performed 9 aerobic training (AT; 90 min at 70% VO2max) and 9 high-intensity interval-training sessions (HIT; 8 x 5 min efforts, 1 min recovery) during a 3-wk period. HIGH trained once daily, alternating between AT on day 1 and HIT the following day, whereas LOW trained twice every second day, firstly performing AT and then 1 h later performing HIT. Pre and post-training measures were a resting muscle biopsy, metabolic measures during steady state cycling (SS), and a time trial (TT). RESULTS:: Power output during HIT was 297 +/- 8 W in LOW compared with 323 +/- 9 W in HIGH (P
KW - SUBSTRATE METABOLISM
KW - SKELETAL MUSCLE
KW - EXERCISE PERFORMANCE
KW - TRAINING ADAPTATION
U2 - 10.1249/MSS.0b013e3181dd5070
DO - 10.1249/MSS.0b013e3181dd5070
M3 - Article
C2 - 20351596
SN - 1530-0315
JO - Medicine and Science in Sports and Exercise
JF - Medicine and Science in Sports and Exercise
ER -