Changes in Energy Expenditure, Dietary Intake, and Energy Availability Across an Entire Collegiate Women's Basketball Season

• Breyannah R. Zanders ^[1] ; Brad S. Currier ^[1] ; Patrick S. Harty ^[1] ; Hannah A. Zabriskie ^[1] ; Charles R. Smith ^[2] ; Richard A. Stecker ^[1] ; Scott R. Richmond ^[1] ; Andrew R. Jagim ^[1] ; Chad M. Kerksick ^[1]
  1. [1] Lindenwood University

     Lindenwood University

     Township of Rivers, Estados Unidos

     
  2. [2] University of South Carolina

     University of South Carolina

     Estados Unidos

     
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 35, Nº. 3, 2021, págs. 804-810
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The purpose of this study was to identify changes in energy expenditure and dietary intake across an entire women's basketball season. On 5 different occasions across the competitive season, female collegiate basketball players (19.8 +/- 1.3 years, 173.9 +/- 13.6 cm, 74.6 +/- 9.1 kg, 27.1 +/- 3.2% fat, 53.9 +/- 6.4 ml[middle dot]kg-1[middle dot]min-1, n = 13) were outfitted with heart rate and activity monitors over 4 consecutive days and completed 4-day food and fluid records to assess changes in energy expenditure and dietary status. Dual-energy x-ray absorptiometry was used to assess baseline body composition and resting energy expenditure (REE) was measured before and after the season. Data were analyzed using 1-factor repeated-measures analysis of variance. Total daily energy expenditure (TDEE, p = 0.059) and physical activity levels (TDEE/REE, p = 0.060) both tended to decrease throughout the season. Energy balance was negative at all time points throughout the season. Absolute and normalized daily protein intake at the end of the season was significantly (p < 0.05) lower than at the beginning of the season. Carbohydrate (3.7 +/- 0.4 g[middle dot]kg-1[middle dot]d-1) and protein (1.17 +/- 0.16 g[middle dot]kg-1[middle dot]d-1) intakes were lower than commonly recommended values based on previously published guidelines. These findings suggest that greater education and interventions for collegiate athletes and coaches regarding dietary intake and energy expenditure are warranted.