Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Preferred Name

Nicole Gilbertson

Date of Award

Spring 2015

Document Type


Degree Name

Master of Science (MS)


Department of Kinesiology


Elizabeth Skidmore Edwards

Jeremy Akers



Purpose: The purpose of this study is to determine if Health Related Quality of Life (HRQOL) and perceived exercise enjoyment are greater in a run sprint interval training (RSIT) group compared to a moderate intensity training (MIT) group in sedentary, prediabetic adults after an 8-week intervention.

Methods: Over 8-weeks, subjects in the RSIT group progressed from 4 to 6 30-second sprints per session, and the MIT group progressed from 30 to 60 minutes of continuous moderate intensity exercise. Participants in both groups completed 8-weeks of the Centers for Disease Control and Prevention (CDC) Diabetes Prevention Program educational classes. HRQOL (assessed by the CDC 4-item Healthy Days Core Module), perceived exercise enjoyment (assessed by the physical activity enjoyment scale, PACES), exercise adherence, VO2max, and body composition were assessed in both groups.

Results: There was no significant difference from baseline to 8-weeks in Healthy Days in the RSIT group (p = 0.833) or the MIT group (p = 0.080). There were also no significant differences between or within groups at baseline or 8-weeks for self-reported days of negative physical health, mental health, or affected usual days scores. There was no significant difference in exercise adherence between the MIT (20.75±2.71 sessions) and RSIT (20.57±1.40 sessions) groups. There was no significant difference between groups in perceived enjoyment, however there was a significant increase from baseline to 8-weeks in the MIT group (11.88±12.38; p = 0.030). 8-weeks of MIT significantly improved body composition measures including body weight (-9.35±6.21; p = 0.004), % body fat (-2.015±1.88; p = 0.019), body mass index (-1.21±1.07; p = 0.015), and % lean mass (2.05±1.84; p = 0.016). RSIT significantly improved VO2max (mL/kg/min) (1.84±1.70; p = 0.028) over 8-weeks.

Discussion: The practical implications of there being no significant difference between RSIT and MIT in perceived exercise enjoyment, exercise adherence, or HRQOL shows participants can choose their exercise preference. A significant improvement in PACES scores for the MIT may be a result of stronger social relationships formed. 8-weeks may have proven to not be long enough to see significant between or within group differences in HRQOL scores.