title: Comparable Effects of Brief Resistance Exercise and Isotime Sprint Interval Exercise on Glucose Homeostasis in Men.
abstract: 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.
authors.affiliation: Dr. Stephen Hui Research Centre for Physical Recreation and Wellness, Department of Physical Education, Hong Kong Baptist University, Hong Kong.
authors.forename: Tomas K
authors.initials: TK
authors.lastname: Tong
authors.affiliation: Faculty of Education, University of Macau, Macau.
authors.forename: Zhaowei
authors.initials: Z
authors.lastname: Kong
authors.affiliation: Faculty of Education, University of Macau, Macau.
authors.forename: Xueying
authors.initials: X
authors.lastname: Shi
authors.affiliation: School of Physical Education and Sports, Macao Polytechnic Institute, Macau.
authors.forename: Qingde
authors.identifier: 0000-0002-3959-4526
authors.initials: Q
authors.lastname: Shi
mesh_terms: D001786:Blood Glucose / Q000378:metabolism*; D015444:Exercise / Q000502:physiology*; D005951:Glucose Tolerance Test; D006706:Homeostasis / Q000502:physiology*; D006801:Humans; D007328:Insulin / Q000097:blood; D007333:Insulin Resistance / Q000502:physiology*; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology; D055070:Resistance Training; D055815:Young Adult
chemical_list: D001786:Blood Glucose; D007328:Insulin