Fuel Utilization and Circulating Substrate at Various Exercise Intensities in Dyslipidemic Women

• Published in: Journal of exercise physiology online Vol. 22; no. 7; p. 30
• Main Authors: Tunkamnerdthai, Orathai, Wongpan, Dussanee, Krasuaythong, Nantaya, Kanpettha, Yupaporn, Leelayuwat, Naruemon
• Format: Journal Article
• Language: English
• Published: Duluth American Society of Exercise Physiologists 01-12-2019
• Subjects: Blood glucose; EDTA; Exercise; Glucose; Metabolic disorders; Oxidation-reduction reactions; Thailand
• ISSN: 1097-9751; 1097-9751

Tunkamnerdthai O, Wongpan D, Krasuaythong N, Kanpettha Y, Leelayuwat N. Fuel Utilization and Circulating Substrate at Various Exercise Intensities in Dyslipidemic Women. JEPonline 2019;22(7):30-41. The purpose of this study was to investigate the effects of exercise intensity on fuel utilization and circulating substrate in dyslipidemic women. Ten women randomly cycled at the workload of 25, 65, and 85% maximum oxygen consumption for 15, 10, and 10 min, respectively, and rested for 20 min, 7 days apart. Expired gas was collected 5 min before exercise, and the last 5 min of the exercise and recovery. Subjects used higher carbohydrate (CHO) and fat during exercise than at rest (P<0.05). CHO use was the greatest and fat was the lowest during exercise at high-intensity than at low- and moderate-intensity exercise. Subjects relied more on CHO than fat during exercise at all intensities. Blood glucose concentrations were the highest at the end of high-intensity exercise and recovery. The results suggest that dyslipidemic women relied more on CHO than fat at rest and during exercise at all intensities. Blood glucose concentration peaked after high-intensity exercise. Key Words: Activity, Lipid Profiles, Substrate Oxidation, Females