若手サイクリストにおける8週間のペダリングテクニックトレーニングプログラムが機能的閾値パワーと下肢の等尺性筋力に及ぼす影響

This study investigated the effects of an eight-week pedal technique training program on functional threshold power (FTP), knee isokinetic strength, and bilateral strength symmetry in young cyclists.

Twenty-four male cyclists aged 15-17 years were assessed before and after an eight-week intervention. Anthropometric measurements, FTP, pedal analysis, and knee isokinetic strength at 60°/s, 180°/s, and 300°/s were evaluated. The training group performed pedal technique training twice per week, while the control group continued their regular training.

No significant changes were observed in FTP, pedal asymmetry indices, or bilateral pedal power output. The training group showed significant improvements in knee extension and flexion peak torque at 60°/s and 180°/s, whereas no meaningful changes were found at 300°/s. Isokinetic results also indicated a reduction in pre-existing strength asymmetries.

Pedal technique-focused training may improve lower-extremity isokinetic performance in young cyclists, particularly at moderate angular velocities, without significantly affecting FTP or overall pedal symmetry.