Title:
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Affective responses to acute exercise
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This series of studies investigated affective responses to acute exercise. Studies
examined the role of affect in predicting V02max, the temporal patterning of affective
responses to acute bouts of exercise, and explored some individual differences which
may predict .affective responses to different exercise intensities. With a sedentary male
population, the first study assessed the validity of predicting V 02max in a sedentary
male population during perceptually regulated trials on a cycle ergometer, and the
ability of the Feeling Scale (FS) to add to the prediction of V02max. Participants
successfully regulated exercise intensity in a relatively consistent manner and FS was
able to account for additional variance in the prediction of V02max during trial 1, RPE
range 9-17. FS responses followed previously found patterns and became more negative
as exercise intensity increased. The temporal pattern of affective responses became the
focus of Studies 2 and 4. Study 2 explored and contrasted the response patterns in heart
rate, perceived exertion, perceived activation and affective valence to a graded exercise
test in sedentary boys and men. Results showed that boys and men responded in a
similar manner to exercise intensity above the ventilatory threshold evn but not below
the VT. Study 3 explored the temporal dynamics of affective responses during and after
prescribed and self-selected exercise in active young adolescents. During exercise,
affective states were least positive in high-intensity exercise. A rebound phenomenon
was obserVed across all exercise intensities post-exercise. The fourth study investigated
affective responses with sedentary young adolescents, within the framework ofthe dualmode
model of affect, and used a two-phase, mixed-method, sequential explanatory
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approach. Quantitative results showed affect was least positive above the VT and more
positive in the self-selected condition and below the VT. Qualitative results showed
positive affective responses were associated with perceived ability to cope,. perceptions
of competence, and a positive interpretation of the exercise intensity. The [mal study
examined the utility of the Preference for and Tolerance of the Intensity of Exercise
Questionnaire (pRETIE-Q) with young adolescents, and investigated its construct
validity. ConfIrmatory factor analysis did not support the original structure; ,!,;;hortened
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questionnaire offerec\ a stronger structure. Only the Tolerance scale of the adapted
PRETIE-Q related to affective responses generated during exercise. A discussion of the
research fIndings in the thesis are presented along with strengths and limitations of thestudies, conclusions, future directions and the applied implications are suggested with
respect to exercise promotion.
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