Do Exercise Pattern and Intensity Influence Affective and Enjoyment Responses in Active Adults? A Secondary Analysis

The purpose of the present study was to compare the ratings of perceived exertion (RPE), affective (Feeling Scale), and remembered enjoyment (Physical Activity Enjoyment Scale) responses following different exercise intensities/patterns and to investigate possible associations with physiological parameters in active adults. In a randomized crossover trial, 16 active adults (29.9 ± 3.2 years; 8 males/8 females) performed three different conditions: moderate continuous exercise (MCE) at 70% lactate threshold (LT), heavy continuous exercise (HCE) at 10% of the difference between LT and VO₂ peak, and heavy interval exercise (HIE) wherein intensity matched HCE but performed as 1-minute on:off with stationary rest in between. RPE (CR10) and affect were evaluated during exercise while remembered enjoyment was assessed at the end of each exercise session. Average RPE was significantly different (p = .001; η_p² = .744) between all three exercise modalities (MCE = 2.6 ± 0.8, HCE = 5.1 ± 1.0; HIE = 3.5 ± 0.9; p ≤.001). Average affect during exercise was also significantly different (p = .001; η_p² = .427) with post hoc testing revealing lower affect for HCE compared to MCE (p = .002) and HIE (p = .008). Similar results were observed for affect nadir (lowest affect during exercise; MCE = 3.1 ± 1.3; HCE = 1.2 ± 1.7; HIE = 2.4 ± 1.6; p = .001; η_p² = .470). Remembered enjoyment was not statistically different between modalities (MCE = 98 ± 18; HCE = 96 ± 17; HIE = 100 ± 16; p = .468; η_p² = .049), but more people preferred HCE (10/16; 62.5%) compared with both HIE (4/16; 25%) and MCE (2/16; 12.5%) (p = .039): Despite the higher average RPE and lower affect during HCE, no difference was observed for remembered exercise enjoyment, and active individuals seem to prefer this exercise modality compared with HIE or MCE.