Effect of different phases of menstrual cycle on body composition in university students/Efeito das diferentes fases do ciclo menstrual na composicao corporal de universitarias

• Published in: Revista brasileira de prescrição e fisiologia do exercício Vol. 6; no. 35; p. 428
• Main Authors: da Silva Teixeira, Andre Luiz, Fernandes, Walter Jr, Moraes, Eveline Moreira, Alves, Hugo Barbosa, Dias, Marcelo Ricardo
• Format: Journal Article
• Language: Portuguese
• Published: Instituto Brasileiro de Pesquisa e Ensino em Fisiologia do Exercicio. IBPEFEX 01.09.2012
• Subjects: Contraceptives industry; Menstruation; Oral contraceptives; Physiological aspects; Universities and colleges
• ISSN: 1981-9900; 1981-9900

The aim of this study was to investigate the effect of different phases of menstrual cycle (follicular, ovulatory and luteal) in anthropometric and body composition values in university students with and without the use of hormonal contraceptives. 44 university students with age range from 18 to 35 years were divided into a control group (CG) who were contraceptives users (n = 24), and an experimental group (EG) who weren't contraceptive users (n = 20). Participants made three visits at laboratory, one in each phase of the cycle. Anthropometric values were measured for weight, height and circumference of the chest, waist, abdomen and thigh. For body composition values was estimated the percentage of fat and fat-free mass (FFM). No significant differences were obtained between the three phases of the cycle within-groups and between-groups (p > 0,05). In conclusion, it seems that the MC did not alter body composition and anthropometric values in university students, independently of the use of hormonal contraceptives. Key words: Measures, Evaluation, Menstrual cycle, Contraceptive agents. O objetivo deste estudo foi verificar o efeito das diferentes fases do ciclo menstrual (folicular, ovulatoria e lutea) nos valores antropometricos e de composicao corporal em universitarias com e sem a utilizacao de contraceptivos hormonais. 44 estudantes universitarias com idades entre 18 e 35 anos foram divididas em um grupo controle (GC) que faziam uso regular de contraceptivos hormonais (n = 24) e um grupo experimental (GE) que nao utilizavam contraceptivos (n = 20). Todas realizaram de forma aleatoria tres visitas ao laboratorio sendo uma em cada fase do ciclo menstrual. Foram mensurados os valores antropometricos de peso, estatura e circunferencias de torax, cintura, abdomen e coxa. Para a composicao corporal foi estimado o percentual de gordura e a massa livre de gordura (MLG). Os resultados nao demonstraram diferencas significativas intra e intergrupos para todos os valores analisados entre as diferentes fases. Em conclusao, parece que o CM nao altera a composicao corporal e as medidas antropometricas de universitarias, independente do uso de contraceptivos hormonais. Palavras-chave: Medidas, Avaliacao, Ciclo menstrual, Anticoncepcionais.