Effect of strength training and the practice of Alpine skiing on bone mass density, growth, body composition, and the strength and power of the legs of adolescent skiers.

This work examines the influence of practicing strength training and Alpine skiing over 2 years on bone mineral density (BMD), growth, body composition, and the strength and power of the legs of adolescent skiers. The study subjects were 20 adolescent skiers (10 girls and 10 boys) and 19 sedentary adolescents (9 girls and 10 boys), all 13-16 years of age. The BMDs of the lumbar column (L2-L4) and hip (neck of the femur, trochanter, and Ward's triangle) were determined by dual x-ray photon absorptiometry at the beginning and end of the experimental period.

The physical and anthropometric profiles of adolescent alpine skiers and their relationship with sporting rank.

The aim of this work was to determine the somatotype of national-level adolescent Spanish skiers, to establish the maximum strength and anaerobic power of their legs, and to examine the relationship between these variables and their national ranks. The study subjects were 31 adolescents skiers, of whom 15 were girls and 16 boys; all were 13-16 years old. Their percentage body fat and muscular mass were recorded, as was their ability to jump (countermovement jump [CMJ]), the strength and power of their legs (squat test), and their anaerobic power (Wingate and continuous jump [CMJ30''] tests).