Energy balance and luteal phase progesterone levels in elite adolescent aesthetic athletes.

Menstrual abnormalities are associated with negative energy balance and reduced energy expenditure (REE). To examine this relationship in elite adolescent aesthetic athletes, 3 groups of females (aged 15-18 years) were studied: 10 oligo/amenorrheic athletes (OA), 11 eumenorrheic athletes (EA), and 8 non-athlete controls (C). Components of energy balance, body composition, dietary restraint, pubertal maturation, and luteal phase salivary progesterone were assessed in all groups.

Adolescent and Young Adult Male Hockey Players: Nutrition Knowledge and Education.

Athletes often have inadequate nutrition knowledge and poor nutritional habits, which can have a negative impact on athletic performance. This study assessed the nutrition knowledge of competitive adolescent and young adult male hockey players, and examined the impact of a nutrition intervention program, Sport Nutrition for the Athletes of Canada (SNAC). Before the intervention, nutrition knowledge was tested in 175 adolescent and young adult male hockey players.