TY - JOUR
T1 - Determinant physiological factors of simulated BMX race
AU - Daneshfar, Amin
AU - Petersen, Carl
AU - Gahreman, Daniel
N1 - Publisher Copyright:
© 2021 European College of Sport Science.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021
Y1 - 2021
N2 - Evaluating the physiological demands of BMX cycling on a track provides coaches with the information required to prescribe more effective training programmes. To determine the relative importance of physiological factors during simulated BMX race, 12 male riders (age 19.2 ± 3.5 years, height 1.76 ± 0.06 m, mass 68.5 ± 4.3 kg) completed a maximum aerobic capacity ((Figure presented.)) test in a laboratory, and a week later, completed six laps on a BMX track interspersed by 15 min passive recovery. Peak power, immediate post-lap (Figure presented.), blood lactate, and heart rate were measured in each lap. Peak power to weight ratio was significantly correlated with lap time, however, the strength of this association decreased in each subsequent lap. Mean (Figure presented.) was greater than 80% of laboratory-measured (Figure presented.) in every lap, indicating a strong contribution of the aerobic energy system during BMX racing. This study also identified that mean blood lactate was significantly associated with lap time, which showed the importance of the anaerobic energy system contribution to BMX race. Despite the short period of pedalling during BMX racing, both aerobic and anaerobic energy systems are important contributors to lap performance. Coaches should consider maximising both anaerobic power and aerobic capacity to improve riders’ overall performance in multiple laps.
AB - Evaluating the physiological demands of BMX cycling on a track provides coaches with the information required to prescribe more effective training programmes. To determine the relative importance of physiological factors during simulated BMX race, 12 male riders (age 19.2 ± 3.5 years, height 1.76 ± 0.06 m, mass 68.5 ± 4.3 kg) completed a maximum aerobic capacity ((Figure presented.)) test in a laboratory, and a week later, completed six laps on a BMX track interspersed by 15 min passive recovery. Peak power, immediate post-lap (Figure presented.), blood lactate, and heart rate were measured in each lap. Peak power to weight ratio was significantly correlated with lap time, however, the strength of this association decreased in each subsequent lap. Mean (Figure presented.) was greater than 80% of laboratory-measured (Figure presented.) in every lap, indicating a strong contribution of the aerobic energy system during BMX racing. This study also identified that mean blood lactate was significantly associated with lap time, which showed the importance of the anaerobic energy system contribution to BMX race. Despite the short period of pedalling during BMX racing, both aerobic and anaerobic energy systems are important contributors to lap performance. Coaches should consider maximising both anaerobic power and aerobic capacity to improve riders’ overall performance in multiple laps.
KW - blood lactate
KW - cycling performance
KW - Peak power
UR - http://www.scopus.com/inward/record.url?scp=85100002214&partnerID=8YFLogxK
U2 - 10.1080/17461391.2020.1859622
DO - 10.1080/17461391.2020.1859622
M3 - Article
C2 - 33263464
AN - SCOPUS:85100002214
SN - 1536-7290
VL - 21
SP - 1699
EP - 1707
JO - European Journal of Sport Science
JF - European Journal of Sport Science
IS - 12
ER -