A Family History of Type 2 Diabetes does Not Impact Maximal Aerobic Capacity in Normoglycemic, Hispanic Males

Authors

Mario Garcia, University of Texas at El PasoFollow
Manuel Amador, University of Texas at El Paso
Cesar Meza, University of Texas at El Paso
Christopher Figueroa, University of Texas at El Paso
Andrew McAinch, Victoria University
Sudip Bajpeyi, University of Texas at El PasoFollow

Abstract

A family history of type 2 diabetes (FH+) is considered a risk factor for insulin resistance and poor cardiorespiratory fitness. However, it is not known if a FH+ impedes exercise-induced improvements in maximal aerobic capacity (VO₂max). Purpose: The purpose of this study was to determine if normoglycemic, sedentary, Hispanic men with FH+ have a lower VO₂max compared to those without a family history of type 2 diabetes (FH-) and if the improvement in VO₂max after 8-weeks of combined exercise training is comparable between FH- and FH+. Methods: 20 participants underwent 8 weeks of combined exercise training (35 min aerobic at 60-75% VO₂max followed by 6 full-body resistance exercises) 3x/week. VO₂max was measured using ParvoMedics 2400 metabolic measurement system during a standardized graded exercise test performed on a treadmill. Body composition was assessed by dual-energy x-ray absorptiometry. Results: There was no difference in VO2max at baseline regardless of family history (3.57 ± 1.7 vs. 3.91 ± 0.21 L/min; p=0.22). Eight weeks of combined exercise training significantly improved VO₂max (3.57 ± 0.17 to 3.82 ± 0.16 L/min; p=0.002) in FH+, and tended to increase VO₂max in FH- (3.91 ± 0.21 to 4.06 ± 0.21 L/min; p=0.09). There was no difference in VO₂max between groups after 8 weeks of exercise training (p=0.67). Lean body mass significantly improved in both groups (FH+ 50.7 ± 1.7 to 53.5 ± 1.79 kg; pConclusions: A family history of diabetes shows no effect on cardiorespiratory fitness in a normoglycemic, sedentary, Mexican American population.

Recommended Citation

Garcia, Mario; Amador, Manuel; Meza, Cesar; Figueroa, Christopher; McAinch, Andrew; and Bajpeyi, Sudip (2018) "A Family History of Type 2 Diabetes does Not Impact Maximal Aerobic Capacity in Normoglycemic, Hispanic Males," International Journal of Exercise Science: Conference Proceedings: Vol. 2: Iss. 10, Article 40.
Available at: https://digitalcommons.wku.edu/ijesab/vol2/iss10/40