Acute affective responses to prescribed and self-selected exercise sessions in adolescent girls: an observational
Charlotte C Hamlyn-Williams1, Paul Freeman2, Gaynor Parfitt3
1General and Adolescent Paediatrics Unit, Population, Policy and Practice, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK ; Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK.
Background:
Positive affective responses can lead to improved adherence to exercise. This study sought to examine the affective responses and exercise intensity of self-selected exercise in adolescent girls.
Methods:
An observational study where twenty seven females (Age M = 14.6 ± 0.8 years) completed three 20-minute exercise sessions (2 self-selected and 1 prescribed intensity) and a graded exercise test. The intensity of the prescribed session was matched to the first self-selected session. Intensity, affective responses and ratings of perceived exertion were recorded throughout the sessions and differences examined. Repeated measures ANOVAs were conducted to examine differences.
Results:
There were no significant differences in intensity between the prescribed and self-selected sessions, but affective responses were significantly more positive (p < .01) during the self-selected session. Ratings of perceived exertion were significantly lower (p < .01) during the self-selected session than the prescribed session. On average participants worked at 72% [Formula: see text] peak; well within the intensity recommended by the American College of Sports Medicine.
Conclusion:
Even though the intensity did not differ between the self-selected and prescribed sessions, there was a significant impact on affective responses, with more positive affective responses being elicited in the self-selected session. This highlights the importance of autonomy and self-paced exercise for affective responses and may have potential long-term implications for adherence.
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