小林ケリム正樹，小泉　潤，稲田　崚佑，大家　利之

[Received July 19, 2022; Accepted April 6, 2023] 

The aim of this study was to investigate the effect of field length on physiological and external load in the same field area during small-sided games (SSGs) of soccer. Three field dimensions were used for SSGs: (1) wide field (wide; 20 × 30 m), (2) normal field (normal; 30 × 20 m), and (3) long field (long; 40 × 15 m). Eight college soccer players (average age: 21 ± 1 yr; height: 171.5 ± 2.9 cm; body mass: 66.9 ± 2.0 kg) were monitored using a heart rate monitor and a 18.18 Hz GPS device. Total distance, distance covered in four speed categories, maximum heart rate, and spend time in four heart rate zone categories were included in the analysis. Moreover, %Sprint. Vmax — defined as the peak sprinting speed during SSGs relative to the individual maximum sprinting speed measured in the prior 60 m sprint test—was included in the assessment. Statistically significant differences in total distance and %Sprint. Vmax were observed under the long condition; however, no significant differences were observed in the remaining measures. Study findings supported that for the same field area per player, extending field length increased total distance and sprinting speed during SSGs.

Keywords: フットボール，スプリント，ゴール型球技，トレーニング

[Football Science Vol.20, 11-19, 2023]