Table of Contents
Journal of Hormones
Volume 2014, Article ID 246342, 6 pages
http://dx.doi.org/10.1155/2014/246342
Clinical Study

Improvements in Chronic Primary Insomnia after Exercise Training Are Correlated with Changes in Metabolic and Hormonal Profile

1Departamento de Psicobiologia, Universidade Federal de São Paulo, Rua Botucatu 862, 1 Andar, Vila Clementino, 04023062 São Paulo, SP, Brazil
2Centro de Estudo em Psicobiologia e Exercício (CEPE), São Paulo, Brazil
3Universidade Federal de Goiás, Campus Jataí, Goiás, GO, Brazil

Received 30 September 2013; Revised 14 March 2014; Accepted 14 March 2014; Published 15 April 2014

Academic Editor: Tullio Florio

Copyright © 2014 Alexandre Abilio de Souza Teixeira et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. The objective of this study was to correlate metabolic and hormonal parameters before and after 8, 16, and 24 weeks (wk) of moderate aerobic training in individuals with chronic primary insomnia. Method. Four male and sixteen female volunteers (adults, sedentary, and healthy) performed exercise training for 24 weeks. Blood and Pittsburgh Sleep Quality Index (PSQI) was obtained at baseline, 8, 16, and 24 wk of training. Results. PSQI scores decreased after 8, 16, and 24 wk of training regarding baseline values. Indeed, total sleep time (TST) increased after 16 and 24 wk of exercise training regarding baseline values. The correlations were analyzed using the delta ( ) values (  wk less baseline;  wk less baseline;  wk less baseline). We have observed a negative correlation for between TST and cortisol, a positive correlation for between TST and growth hormone, a negative correlation for between TST and VLDL, a negative correlation for between TST and triacylglycerols, and a negative correlation for and between TST and thyroid-stimulating hormone. Conclusion. The exercise training improved the sleep quality of patients with chronic primary insomnia.