Promoting exercise behaviour: an integration of persuasion theories and the theory of planned behaviour.
OBJECTIVE
The purpose of this study was to examine the effectiveness of a theoretical integrated persuasive message on exercise motivation in college students.


METHODS
Four hundred and fifty introductory psychology students (M age = 20.02 years; SD = 3.94) were randomly assigned to reading positively or negatively framed strong messages advocating exercise. The messages were attributed to a credible source, a non-credible source or to a no-source control condition. Theory of planned behaviour (TPB) constructs (i.e. attitude, subjective norm, perceived behavioural control) and cognitive responses (i.e. thought listing) were measured immediately and 2 weeks following the delivery of the intervention.


RESULTS
Unfortunately, the results did not corroborate previous research, as we did not find any significant effects between experimental groups on any psychological or behavioural variable.


CONCLUSIONS
There may be several potential explanations for the lack of effects, including the interaction between the type of persuasive information (TPB implications) and sources of persuasion and how these persuasive messages are processed (elaboration likelihood model/cognitive response implications). The theoretical implications of this research are discussed with a view towards future directions for exercise promotion initiatives using theoretically driven interventions.
Jones
Lee W
LW
Faculty of Physical Education, University of Alberta, Canada. lee.jones@ualberta.ca
Sinclair
Robert C
RC
Rhodes
Ryan E
RE
Courneya
Kerry S
KS
D000328:Adult; D000339:Affect; D001290:Attitude; D015444:Exercise; D005260:Female; D015438:Health Behavior; D006293:Health Promotion; D006801:Humans; D008297:Male; D010565:Persuasive Communication; D011582:Psychological Theory; D011932:Reading; D011795:Surveys and Questionnaires