Effect of short‐term exercise training on insulin sensitivity in obese and lean mares

• DOI: 10.1111/j.2042-3306.2002.tb05396.x
• Publication Date: 2010-06-15T04:25:27Z
• Authors: D. M. POWELL; S. E. REEDY; D. R. SESSIONS; B. P. FITZGERALD
• Keywords: 2. Zero hunger; 04 agricultural and veterinary sciences; 0403 veterinary science; Random Allocation; Glucose; Physical Conditioning, Animal; Glucose Clamp Technique; Animals; Insulin; Female; Horse Diseases; Horses; Obesity; Insulin Resistance

Summary Twelve untrained aged mares were used to determine whether 7 days of light exercise improved peripheral tissue insulin sensitivity. Mares divided into obese‐exercised (n = 3), obese‐sedentary lean‐exercised 3) and lean‐sedentary groups. The exercised groups worked at a trot heart rate (HR) not more than 140 beats/min for 30 min in round pen. Each group was subjected 3 euglycaemic hyperinsulinaemic clamps: prior (P), 24 h following the seventh training session (E) 9 postexercise (PE). Prior training, obese confirmed insulin‐resistant compared lean group. There no change bodyweight or body condition throughout study. Glucose infusion (GIR) higher (P<0.05) on E P Insulin sensitivity returned pre‐exercise values by results this study suggest that improvement occurs without long interval absence bodyweight.