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Open AccessArticle

Effects of Eight Weeks of High Intensity Functional Training on Glucose Control and Body Composition among Overweight and Obese Adults

1
Department of Exercise Science and Sport Management, Kennesaw State University, Kennesaw, GA 30144, USA
2
New York Football Giants, East Rutherford, NJ 07073, USA
3
Facultad de Ciencias de la Salud, Universidad Europea Miguel de Cervantes, Valladolid 47012, Spain, [email protected]
4
Department of Kinesiology, Kansas State University, Manhattan, KS 66506, USA
*
Authors to whom correspondence should be addressed.
Sports 2019, 7(2), 51; https://doi.org/10.3390/sports7020051
Received: 31 December 2018 / Revised: 2 February 2019 / Accepted: 21 February 2019 / Published: 22 February 2019
(This article belongs to the Special Issue Research on High Intensity Functional Training)
High-intensity exercise has been found to positively influence glucose control, however, the effects of high-intensity functional training (HIFT) for overweight and obese sedentary adults without diabetes is unknown. The purpose of this study was to examine changes in body composition and glucose control from eight weeks of aerobic and resistance training (A-RT) compared to HIFT. Session time spent doing daily workouts was recorded for each group. Baseline and posttest measures included height, weight, waist circumference, dual X-ray absorptiometry (body fat percentage, fat mass, lean mass), and fasting blood glucose. Participants completing the intervention (78%, n = 9 per group) were 67% female, age = 26.8 ± 5.5 years, and had body mass index = 30.5 ± 2.9 kg/m2. Fasting blood glucose and 2-h oral glucose tolerance tests were used as primary outcome variables. On average, the HIFT group spent significantly less time completing workouts per day and week (ps < 0.001). No significant differences were found for body composition or glucose variables within- or between-groups. Even though our findings did not provide significant differences between groups, future research may utilize the effect sizes from our study to conduct fully-powered trials comparing HIFT with other more traditional training modalities. View Full-Text
Keywords: fitness; diabetes; CrossFit; exercise fitness; diabetes; CrossFit; exercise
MDPI and ACS Style

Feito, Y.; Patel, P.; Sal Redondo, A.; Heinrich, K.M. Effects of Eight Weeks of High Intensity Functional Training on Glucose Control and Body Composition among Overweight and Obese Adults. Sports 2019, 7, 51.

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