Feasibility and Acceptability of a Physical Activity Behavior Change Intervention for Parkinson's Disease

Measured using Actigraph accelerometer, levels of moderate-vigorous physical activity will be measured, as well as number of steps and sedentary behavior.

The BREQ-2 is a 19-item questionnaire that measures each of the subscales of the self-determination continuum: external, introjected, identified, and intrinsic regulations, as well as amotivation. Each subscale is represented by 4 questions, except for introjected regulation which has 3. Questions are scored using a 5-point Likert scale; Answers range from 0 (not true for me) to 4 (very true for me). Composite scores were calculated from these subscales. Autonomous motivation was calculated from the intrinsic motivation and identified regulation subscales, with possible scores ranging from 0 (low autonomous motivation) to 4 (high autonomous motivation. Controlled motivation was calculated from the introjected regulation and external regulation subscales, with possible scores ranging from 0 (low controlled motivation) to 4 (high controlled motivation).

Participant starts sitting in chair and then rises when prompted to "go" and then walks 3 meters, turns around, and walks back to chair. Time to complete is recorded

Assesses the distance walked over 6 minutes as a sub-maximal test of aerobic capacity/endurance.

The Brunel lifestyle inventory is a 10-item questionnaire that measures both pre-planned (6 items) and un-planned (3 items) lifestyle PA. Scoring for each item is on a scale of 1-5, and the scores for each subscale are averaged. Scores range from 1 (low level of physical activity) to 5 (high level of physical activity).

This test evaluates the number of digits a person can remember in both a forward and backward recall. WAIS-III subscale measures sequential processing, mental manipulation, attention, concentration, memory span, and short-term auditory memory. Higher numbers would indicate a greater number of digits remembered (better outcome). Minimum value is 0 and there is no maximum.

This test evaluates the ability to state the color of a word but not the written word. The cognitive dimension tapped by the Stroop is associated with cognitive flexibility, resistance to interference from outside stimuli, creativity, and psychopathology. The number of correct words in 45 seconds is recorded.

Designed to capture a client's self-perception of performance in everyday living, over time. Participants rate their performance and satisfaction of previously defined goals on a scale of 1-10, with 10 being high performance or satisfaction, and 1 being low performance or satisfaction.

18-item test that measures an individual's self-efficacy to participate in exercise when numerous barriers are present, including both social and physical barriers. Total score is calculated by summing the responses to each question. This scale has a range of total scores from 0-90. A higher score indicates higher self-efficacy for exercise.

The Perceived Autonomy Support Healthcare Climate Questionnaire is from the Health-Care, Self-Determination Theory Questionnaire Packet that was designed to assess constructs encompassed within Self-Determination Theory (SDT) as it applies to health-care behavior. This is a measure of acceptability of the intervention administered only the 4 month assessment. Scores on this 15-item questionnaire are calculated by averaging the individual item scores, which are rated on a 1-7 Likert scale. Scores range from 1-7, with higher average scores (7 max) represent a higher level of perceived autonomy support.

This purpose developed post-intervention questionnaire will evaluate participant's perceptions of the intervention. Informed by the Theoretical Framework of Acceptability, the questionnaire was designed to inductively evaluate the retrospective acceptability of the intervention. Score on Likert scale 1-5, with 5 being most acceptable.