Echo intensity and muscle thickness as predictors Of athleticism and isometric strength in middle‐school boys

Introduction We examined correlations among echo intensity and muscle thickness versus measures of athleticism and isometric strength in healthy children. Methods B‐mode ultrasonography was used to examine the vastus lateralis (VL) and rectus femoris (RF) in 28 boys (mean age = 12 years). Tests of athleticism included jump height and peak velocity, sprint speed, and agility. Peak torque and the rate of torque development (RTD) at 100 and 200 ms...