Comparable Effects of Brief Resistance Exercise and Isotime Sprint Interval Exercise on Glucose Homeostasis in Men

This study compared the effects of a single bout of resistance exercise (res) on glycemic homeostasis to isotime sprint interval exercise (sie) using a within-subjects design. nineteen nondiabetic males (age: 23.3±0.7 yrs; height: 173.1±1.2 cm; weight: 79.1±4.8 kg; % fat: 22.5±2.5%) were studied. res involved nine exercises of 10 repetitions at 75% 1-rm using a 2: 2 s tempo and was interspersed with a one-minute recovery; sie involved four 30 s' all-out cycling effort interspersed with four minutes of active recovery. plasma glucose and insulin in response to a 75 g oral glucose tolerance test were assessed 12 h after exercise. in comparison to a no exercise control trial (con),the area under curve (auc) of plasma glucose was reduced with both res and sie (p<0.05),while insulin auc was only reduced with res. cederholm,gutt,matsuda,and homa indices were improved (p<0.05) following res compared to con. corresponding changes following sie were only found in cederholm and gutt indices (p<0.05). no difference was found in plasma variables and indices between res and sie (p>0.05). such findings suggest that the res may represent a potential alternative to the sie in the development of time-efficient lifestyle intervention strategies for improving diabetes risk factors in healthy populations. © 2017 tomas k. tong et al.