Document Type


Degree Name

Master of Kinesiology (MKin)




Faculty of Science

First Advisor

Dr. Tom Hazell

Advisor Role


Second Advisor

Dr. Jennifer Robertson-Wilson

Advisor Role


Third Advisor

Dr. Mark Eys

Advisor Role

Thesis Advisory Committee


PURPOSE: The current study aimed to compare psychological responses to, preference for, and adherence to moderate-intensity continuous training (MICT), high-intensity interval training (HIIT), and modified sprint-interval training (SIT) among adults aged 30-50 years. METHODS: Ten participants (46 ± 10 y; maximal oxygen uptake (V̇O2max) 34.70±10.34 mL·kg-1·min-1), participated in 3 experimental sessions: MICT (30 min at 65% V̇O2max); HIIT (10 x 1 min bouts at 90% maximal heart rate separated by 1 min of recovery); and modified SIT (8x15 s “all-out” sprints interspersed with 2 min of recovery). Affect, enjoyment, self-efficacy, and intentions were measured during each experimental session. Participants (n=4) rank-ordered the protocols according to preference at the final session and adherence to the exercise sessions through the completion of exercise logs was followed for 4-weeks (n=3) where participants subsequently re-ranked the protocols. RESULTS: No differences in affective responses were found (p>0.05) between sessions. Participants expressed significantly more enjoyment to engage in HIIT 3x/week compared to SIT (p=0.011). Enjoyment responses to the exercise completed and the physical activity enjoyment scale approached significance (p<0.100) with HIIT being more enjoyable compared to SIT (p=0.011). Participants felt more confident in their ability to perform MICT compared to SIT (p=0.019) and expressed greater intentions to perform MICT 3x/week compared to SIT (p=0.044) and HIIT (p=0.012). Participants (n=4) first ranked protocol at the final experimental session was HIIT, however over the follow-up participants (n=3) first ranked protocol became MICT. Low adherence rates were observed in response to MICT (6.5±6.3 sessions), HIIT (3.2±2.4 sessions), and SIT (M=0.0±0.0 sessions) over 4 weeks. CONCLUSION: A single session of MICT or HIIT is more enjoyable and preferred compared to modified SIT. A larger sample size is needed to better understand adherence to exercise.

Convocation Year


Available for download on Saturday, September 28, 2024