Ultrasonography of the deep abdominal muscles at rest and during the drawing-in maneuver: A comparative study of Japanese adolescent vs. adult soccer players

The purpose of this study was to clarify the characteristics of abdominal deep muscles in adolescent soccer players. Participants were 53 soccer players from junior high school and 14 adult soccer players. The deep abdominal muscles of both sides were imaged by ultrasonography. Abdominal muscles on the dominant leg side were selected as the targets of measure.

Isokinetics and Execise Science