Publication Date

2018-08-03

Availability

Open access

Embargo Period

2018-08-03

Degree Type

Dissertation

Degree Name

Doctor of Philosophy (PHD)

Department

Kinesiology and Sport Sciences (Education)

Date of Defense

2018-06-26

First Committee Member

Arlette Perry

Second Committee Member

Kevin Jacobs

Third Committee Member

Wesley Smith

Fourth Committee Member

Soyeon Ahn

Abstract

The purpose of the study was to compare the effects of aerobic high intensity interval training (A-HIIT) and resistance-high intensity interval training (R-HIIT) to that of a control group (CON) on physical characteristics, cardiometabolic health, and self-reported well-being. A total of 48 overweight/obese women met the criteria for possessing one or more metabolic syndrome (MetS) risk factors and were randomly assigned to one of three groups. Following eight weeks of training, a total of 31 women completed the intervention and were included in the statistical analysis: A-HIIT (n=10), R-HIIT (n=10), and CON (n=11). Both experimental groups trained three times a week for 25 minutes throughout the eight-week protocol. Both A-HIIT and R-HIIT groups improved aerobic fitness compared to CON (p=0.029 for both groups). Only R-HIIT group showed increases in upper body power over CON (p=0.002). R-HIIT group also showed statistically significant reductions in fasting insulin levels (p=0.036) and insulin resistance (p=0.046) compared to CON. Furthermore, β-cell function scores were lower in R-HIIT compared to CON (p=0.017) and A-HIIT (p=0.002) groups. R-HIIT also had significantly higher scores on the physical function domain of Patient Reported Outcome Measurement System (PROMIS®)-57 well-being questionnaire compared to the CON group (p=0.035). Our study showed that R-HIIT can be considered as part of an optimal worksite-wellness strategy for improving physical characteristics, cardiometabolic health, and well-being in women at risk for or possessing MetS seeking an expeditious form of training.

Keywords

High intensity interval training; resistance training; insulin resistance; cardiometabolic; obese; worksite wellness

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