The Risk of Menstrual Dysfunction Increases for Women during U.S. Army Basic Combat Training.

Autor:	Bozzini BN; Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA., Nguyen VT; Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA., Reynoso MC; Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA., Guerriere KI; Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA., Walker LA; Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA., Taylor KM; Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA., Foulis SA; Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA., Bouxsein ML, Hughes JM; Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, MA., Popp KL
Jazyk:	angličtina
Zdroj:	Medicine and science in sports and exercise [Med Sci Sports Exerc] 2023 Sep 01; Vol. 55 (9), pp. 1533-1539. Date of Electronic Publication: 2023 Apr 14.
DOI:	10.1249/MSS.0000000000003183
Abstrakt:	Purpose: To determine whether changes in menstruation develop in female trainees during BCT and whether changes in body mass, body composition and/or physical activity are associated with menstrual interruption during BCT. Methods: Female trainees grouped according to self-reported menstrual status in the 12 months before BCT as having regular cycles (RC; n = 352) or MD ( n = 97) completed height, body mass, and body composition assessments and questionnaires before and after BCT. Fisher's exact test and Mann-Whitney U test were used to compare between-group differences in categorical and continuous variables, respectively. Among RC trainees, odds ratios were calculated to examine the influence of changes in body mass, lean mass, and fat mass on a trainee's likelihood to miss a period during BCT. Results: There were no differences in race, height, body mass, body mass index, or physical activity history at pre-BCT between RC and MD ( P > 0.05). Overall, 86% of trainees experienced changes to menstruation during BCT. RC were more likely than MD to have at least one period during BCT (81% vs 69%, respectively, P = 0.01). Among RC, gaining more body mass and lean mass and losing less fat mass were associated with increased odds of missing a period during BCT. Conclusions: These findings demonstrate that most female trainees experience menstrual changes during BCT. Menstrual cycle interruptions do not appear to align with loss of body or fat mass. (Copyright © 2023 by the American College of Sports Medicine.)
Databáze:	MEDLINE
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