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The goal of the present study was to examine partially conflicting hypotheses derived from two motivational theories, namely self-determination theory (SDT; Deci & Ryan, 1985, 2000) and future time perspective theory (FTPT; Lens, 2001; Nuttin & Lens, 1985). In line with SDT, it was found that framing an exercise activity in terms of future intrinsic goal attainment (focusing on health and physical fitness) has a positive effect on effort expenditure, autonomous exercise motivation, performance, long-term persistence, and even sport club membership. On the other hand, framing an exercise activity in terms of future extrinsic goal attainment (focusing on physical appearance and attractiveness) undermined those outcomes compared to a no-future-goal control group. Correlational analyses indicate that future extrinsic goal framing led to non-autonomous persistence while future intrinsic goal framing resulted in autonomously driven perseverance at the free-choice activity. In contrast to FTPT, the no-future-goal control group did not differ from a future content-free goal group, in which the general future importance of the present task was stressed. Finally, presenting those goals in an autonomy-supportive rather than a controlling way resulted in the same motivational and behavioral benefits as future intrinsic goal framing. It is discussed how future time perspective theory and self-determination theory can be reconciled and integrated.
The authors are with the Dept. of Psychology, University of Leuven, Tiensestraat 102, B-3000 Leuven, Belgium.
Supported by a grant for scientific research Flanders (FWO-Vlaanderen).