Table 4.
Study variables.
| Variable | Measure | Subscales | Alpha statistics | |
| Primary variables | ||||
|
|
CVD risk | Framingham nonlaboratory risk score calculator | Age: yrs; body mass index: kg/m2; systolic blood pressure: mmHg |
|
| Six minute walk test | Distance walked in 6 minutes: ft |
|
||
|
|
PA | Sensewear armband (BodyMedia, Pittsburgh, PA) | Minutes of METs ≥ 3 (7 days of measurement); steps per day |
|
| Secondary variables | ||||
|
|
Anthropometrics | Stadiometer (Seca Corp, Hamburg, Germany); scale (Tanita, Arlington Heights, IL) | Height (baseline only): cm; weight: kg; body mass index: kg/m2 |
|
|
|
Body composition | Tape measure (Singer, China) | Waist circumference: cm; hip circumference: cm; waist to hip ratio |
|
|
|
Blood pressure | Sphygmomanometer (Omron BP742N, Lake Forest, IL) | Systolic blood pressure: mmHg; diastolic blood pressure: mmHg |
|
|
|
Demographics | Self-report | Age: yrs; sex; race/ethnicity; education |
|
|
|
Exercise motivation | Behavioral Regulation in Exercise Questionnaire-2 | Intrinsic, identified, introjected, extrinsic, amotivation | .73-.86 |
|
|
Health status and quality of life | 36-Item Short Form Health Survey | Physical functioning, social functioning, physical role limitations, emotional role limitations, mental health, energy/vitality, pain | .76-.90 |
|
|
Physical function | Short physical performance battery | Repeated chair stands, balance, semitandem stand, side-by-side stand, tandem stand, 8 feet walk |
|
| PROMIS SF v1.2-Physical function 8b | Upper extremities, lower extremities, central regions |
|
||
|
|
Psychological feelings | Psychological Need Satisfaction in Exercise Scale | Perceived competence, perceived autonomy, perceived relatedness | >.90 |
|
|
Resting pulse | Sphygmomanometer (Omron BP791T, Lake Forest, IL) | Heart rate: bpm |
|
|
|
Self-regulation | Rovinak et al scale [55] | Exercise goals, exercise plans | .87-.89 |