"I am a Physically Active Person!": A Randomized Controlled Trial Aimed to Increase Levels of Physical Activity Self-Definition and Physical Activity Among a Sample of Inactive Adults

University of Manitoba120 enrolled

Overview

This explanatory sequential mixed methods study investigated if an intervention can increase the physical activity identity and physical activity (PA) of inactive individuals. The intervention condition focused on increasing participant's physical activity self-definition (PASD) through educational sessions and group discussions on the five direct and indirect determinants of PASD (perceived enjoyment, perceived wanting, perceived commitment, perceived trying, perceived ability). The control condition was given general health behaviour education sessions. Researchers conducted interviews with some of the participants after the intervention was completed.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

TRIPLE

Enrollment

120

Conditions

Physical Activity Self-Definition Physical Activity

Interventions

Eligibility

Sex: ALLMin age: 18 YearsMax age: 64 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Must be insufficiently active (\<150 minutes of moderate-vigorous PA per week) * Scored below the mean in PASD * Medically safe to participate in PA * Intention to engage in PA over the next 6 weeks

Outcomes

Primary Outcomes

Physical Activity Self-Definition

Measured with a 4-item questionnaire using a 7-point Likert scale (1= strongly disagree; 7 = strongly agree)

Time frame: Measured pre-intervention, 5 weeks later at intervention end and 4 weeks post intervention

ActiGraph Accelerometers

Weekly sedentary, light, moderate, and vigorous physical activity minutes were measured using accelerometers, worn at the hip for 7 day during waking hours.

Time frame: Measured pre-intervention, 5 weeks later at intervention end and 4 weeks post intervention