Effect of the Growth Spurt on Training of Strength and Power During Mid-Adolescence in Boys.

Badenhorst, J, Pienaar, AE, and Gerber, BP. The effect of the growth spurt on training of strength and power during mid-adolescence in boys. J Strength Cond Res 35(8): 2193-2204, 2021-This study determined if the growth spurt will influence the training of strength and power in boys (N = 86) of differing maturity levels.

Interrelations between anthropometric and fitness changes during mid-adolescence in boys: a 2-year longitudinal study.

Objectives: This study aimed to determine changes and interrelationships between changes in selected anthropometric growth parameters and motor and physical fitness, among boys over a 2 year period during mid-adolescence.

Methods: Speed, agility, hand-eye coordination, explosive power, muscle strength, and aerobic endurance were measured once a year, and the anthropometric measurements (stature, body mass, sitting height, arm span, and sitting height ratio), were measured three times per year, 4 months apart (among 73 adolescent boys). A hierarchical linear model, adjusting for covariates and partial correlation analysis (R(2) ) were used to analyze the data.