Determinant physiological factors of simulated BMX race

Amin Daneshfar, Carl Petersen, Daniel Gahreman

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalEuropean Journal of Sport Science
Early online date28 Jan 2021
Publication statusE-pub ahead of print - 28 Jan 2021


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