M Ganesh Kamath1, Jay Prakash1, Sambit Dash2, Sudipta Chowdhury3, Zuhilmi Bin Ahmed3, Muhammad Zaim Zharif Bin Mohd Yusof1. 1. Faculty, Department of Physiology, Melaka Manipal Medical College (Manipal Campus), Manipal University , Manipal, India . 2. Faculty, Department of Biochemistry, Melaka Manipal Medical College (Manipal Campus), Manipal University , Manipal, India . 3. MBBS Students, Melaka Manipal Medical College (Manipal Campus), Manipal University , Manipal, India .
Abstract
INTRODUCTION: Sleep is vital for mental and physical health of an individual. Duration of sleep influences the metabolism and regulates body weight. OBJECTIVE: To assess the cross-sectional association of sleep duration with body mass index (BMI) and waist-hip ratio in Malaysian students. METHODS: Eighty-nine Malaysian students of both genders, and with a mean (standard deviation) age of 21.2 (0.9) years were included. Institutional Ethics Committee clearance was obtained prior to the start of study. The subjects were interviewed regarding the average hours of sleep/day, their self-reported sleep duration was categorized as < 6hour/day (short sleep duration), 6-7hour/day and > 7hour/day. Their height (in meters), weight (in kilograms), waist and hip circumference (in centimetre) were measured. BMI and waist-hip ratio were calculated using appropriate formulas and expressed as mean (standard deviation). The duration of sleep was compared with BMI and waist-hip ratio using one way ANOVA. RESULTS: No statistical significance was observed when sleep duration was associated with BMI (p=0.65) and waist-hip ratio (p=0.95). Duration of sleep did not affect BMI and waist hip ratio in the Malaysian students in our study. The age and healthy lifestyle of the subjects in this study may have been a reason for no significant influence of short sleep duration on the BMI and waist-hip ratio. CONCLUSION: No association was found between sleep duration with BMI and waist hip ratio in the Malaysian students.
INTRODUCTION: Sleep is vital for mental and physical health of an individual. Duration of sleep influences the metabolism and regulates body weight. OBJECTIVE: To assess the cross-sectional association of sleep duration with body mass index (BMI) and waist-hip ratio in Malaysian students. METHODS: Eighty-nine Malaysian students of both genders, and with a mean (standard deviation) age of 21.2 (0.9) years were included. Institutional Ethics Committee clearance was obtained prior to the start of study. The subjects were interviewed regarding the average hours of sleep/day, their self-reported sleep duration was categorized as < 6hour/day (short sleep duration), 6-7hour/day and > 7hour/day. Their height (in meters), weight (in kilograms), waist and hip circumference (in centimetre) were measured. BMI and waist-hip ratio were calculated using appropriate formulas and expressed as mean (standard deviation). The duration of sleep was compared with BMI and waist-hip ratio using one way ANOVA. RESULTS: No statistical significance was observed when sleep duration was associated with BMI (p=0.65) and waist-hip ratio (p=0.95). Duration of sleep did not affect BMI and waist hip ratio in the Malaysian students in our study. The age and healthy lifestyle of the subjects in this study may have been a reason for no significant influence of short sleep duration on the BMI and waist-hip ratio. CONCLUSION: No association was found between sleep duration with BMI and waist hip ratio in the Malaysian students.
Keywords:
Body mass index; Malaysia; Medical students; Sleep; Waist-hip ratio
Authors: W Moraes; D Poyares; I Zalcman; M T de Mello; L R Bittencourt; R Santos-Silva; S Tufik Journal: Sleep Med Date: 2013-02-05 Impact factor: 3.492