Intrinsic motivation in two exercise interventions: Associations with fitness and body composition

Thøgersen-Ntoumani, Cecilie, Shepherd, Sam O., Ntoumanis, Nikos, Wagenmakers, Anton J. M. and Shaw, Cristopher S. 2016, Intrinsic motivation in two exercise interventions: Associations with fitness and body composition, Health psychology, vol. 35, no. 2, pp. 195-198, doi: 10.1037/hea0000260.

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Title Intrinsic motivation in two exercise interventions: Associations with fitness and body composition
Author(s) Thøgersen-Ntoumani, Cecilie
Shepherd, Sam O.
Ntoumanis, Nikos
Wagenmakers, Anton J. M.
Shaw, Cristopher S.ORCID iD for Shaw, Cristopher S. orcid.org/0000-0003-1499-0220
Journal name Health psychology
Volume number 35
Issue number 2
Start page 195
End page 198
Total pages 4
Publisher American Psychological Association
Place of publication Washington, D.C.
Publication date 2016-02
ISSN 1930-7810
Keyword(s) self-determination
VO2max
body fat
HIT
path analysis
Summary OBJECTIVE: To examine the motivational process through which increases in aerobic capacity and decreases in total body fat are achieved during high-intensity intermittent training (HIT) and moderate-intensity continuous training (MICT) interventions. METHOD: Eighty-seven physically inactive adults (65% women, age = 42 ± 12, BMI = 27.67 ± 4.99 kg/m²) took part in a 10-week randomized intervention testing group-based HIT, operationalized as repeated sprints of 15-60 s interspersed with periods of recovery cycling ≤ 25 min/session, 3 sessions/wk⁻¹, or MICT, operationalized as cycling at constant workload of ∼65% maximum aerobic capacity (VO₂max, 30-45 min/session⁻¹, 5 sessions/wk⁻¹. Assessments of VO₂max and total body fat were made pre- and postintervention. Motivation variables were assessed midintervention and class attendance was monitored throughout. Path analysis was employed, controlling for treatment arm and baseline values of VO₂max and total body fat. RESULTS: The 2 groups differed in adherence only, favoring HIT. Baseline VO₂max predicted intrinsic motivation midintervention. Intrinsic motivation predicted program adherence, which in turn predicted increases in VO2max and decreases in total body fat by the end of the study. CONCLUSION: Intrinsic motivation in HIT and MICT is positively linked to adherence to these programs, which can facilitate improvements in fitness and body composition.
Language eng
DOI 10.1037/hea0000260
Field of Research 170114 Sport and Exercise Psychology
111712 Health Promotion
110602 Exercise Physiology
Socio Economic Objective 920401 Behaviour and Health
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, American Psychological Association
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084916

Document type: Journal Article
Collections: Faculty of Health
Institute for Physical Activity and Nutrition
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