Obesity, Sedentary Lifestyle
Conditions
Keywords
Sedentary time, Sit-to-stand transitions
Brief summary
The investigators are doing a study to learn how to support patients aged 60+ in taking more breaks from sitting and reducing total sitting time. The goal of the study is to find out if a sitting time reduction intervention reduces sitting time compared with a control group.
Detailed description
More than one-third of American adults over 60 have a body mass index \> 30 kg/m2. These older adults have more sedentary time than any other group -- an average of 10-11 hours per day. Reducing the sedentary behavior of older adults with obesity, rather than only promoting more intensive physical activity, could provide a more feasible approach to health promotion. This randomized control pilot trial will evaluate a 12-week intervention to decrease sitting time and increase standing time and light physical activity among sedentary older adults a body mass index \> 30 kg/m2 as compared to control group. Baseline and 12-week measurements include anthropometric measures, blood draw by finger stick, cardiovascular health assessments, physical function tasks, and a survey. The intervention will consist of two in-person visits with a health coach followed by phone-based coaching.
Interventions
Participants receive health coaching, a workbook, an inactivity alert wristband, and feedback charts based on objective measurement of sedentary time.
Participants receive enhanced usual care based on general healthy living topics that are available to all Kaiser Permanente Washington enrollees.
Sponsors
Study design
Eligibility
Inclusion criteria
* Kaiser Permanente Washington enrollees * Men and women * Age 60 - 89 * BMI 30 - 50 (calculated based on most recent height ever and most recent weight taken within previous 18 months) * Primary care within Integrated Group Practice * Continuously enrolled at Kaiser Permanente Washington for previous 12 months * No record of death * Not on the No Contact list * Speaks and writes English * Able to hold a conversation by phone (no hearing or other limitations) * Self-reported sitting time of 6 hours/day or more * Self-reported ability to stand with or without an assistive device * Self-reported ability to walk one block with or without an assistive device * Available for the study duration * Able to come to Kaiser Permanente Washington Health Research Institute's research clinic for measurement visits * Willing to wear study activity monitors
Exclusion criteria
* Resides in long-term care, hospice care, or skilled nursing facility (previous 12 months) * Wheelchair bound * Diagnosis of dementia, serious mental health disorder, or substance use disorder (previous 24 months) * Use of an assistive device
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Hours of Sitting Time | 12 weeks | Average hours of sitting time over the last 7 days measured at baseline and 12 weeks later |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Periods of Sitting for 30+ Minutes | 12 weeks | Change in average daily number of activPAL-measured periods of sitting for 30+ minutes without standing, from baseline to 12 weeks |
| Physical Function | 12 weeks | Change in Short Physical Performance Battery (SPPB) scale score, from baseline to 12 weeks. The range of scores is 0 to 12, higher values represent better physical function. |
| Blood Pressure (Systolic Blood Pressure) | 12 weeks | Change in average of second and third blood pressure reading (for systolic blood pressure), from baseline to 12 weeks |
| Sit-to-stand Transitions | 12 weeks | Change in average daily number of activPAL-measured sit-to-stand transitions, from baseline to 12 weeks |
| Total Cholesterol (mg/dL) | 12 weeks | Change in total cholesterol (mg/dL) from finger stick blood draw, from baseline to 12 weeks |
| Depressive Symptoms | 12 weeks | Change in Patient Health Questionnaire (PHQ-8) scale score, from baseline to 12 weeks. The scale range is 0 to 24 with higher scores representing higher depressive symptoms. Scores of 10 or more are considered major depression. |
| Fasting Glucose (mg/dL) | 12 weeks | Change in fasting glucose (mg/dL) from finger stick blood draw, from baseline to 12 weeks |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| I-STAND Participants randomly assigned to the I-STAND intervention group will receive 2 in-person health coaching sessions and 4 biweekly phone-based health coaching sessions. They will receive a wristband that gives a mild vibration after 20 minutes of inactivity and will be encouraged to stand if possible after each inactivity alert. Participants may also choose to receive biweekly email reminders in the weeks between coaching calls. They will also receive a workbook with content around reducing sitting time.
I-STAND: Participants receive health coaching, a workbook, an inactivity alert wristband, and feedback charts based on objective measurement of sedentary time. | 29 |
| Healthy Living Participants randomly assigned to the Healthy Living enhanced usual care control group will receive 1 in-person health coaching session and 5 biweekly check-in letters by mail. They will receive a workbook with general healthy living topics that are not expected to impact sitting time. All content is taken from Kaiser Permanente Washington's website and is available to all members. Participants will select topics of interest and review them on their own with no further health coaching.
Healthy Living: Participants receive enhanced usual care based on general healthy living topics that are available to all Kaiser Permanente Washington enrollees. | 31 |
| Total | 60 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Overall Study | Withdrawal by Subject | 0 | 6 |
Baseline characteristics
| Characteristic | I-STAND | Healthy Living | Total |
|---|---|---|---|
| Age, Continuous | 69.0 years STANDARD_DEVIATION 4.7 | 67.8 years STANDARD_DEVIATION 5.2 | 68.4 years STANDARD_DEVIATION 4.9 |
| Body mass index | 36.6 kg/m^2 STANDARD_DEVIATION 6.1 | 36.0 kg/m^2 STANDARD_DEVIATION 3.8 | 36.3 kg/m^2 STANDARD_DEVIATION 5 |
| Ethnicity (NIH/OMB) Hispanic or Latino | 0 Participants | 1 Participants | 1 Participants |
| Ethnicity (NIH/OMB) Not Hispanic or Latino | 28 Participants | 29 Participants | 57 Participants |
| Ethnicity (NIH/OMB) Unknown or Not Reported | 1 Participants | 1 Participants | 2 Participants |
| Race (NIH/OMB) American Indian or Alaska Native | 0 Participants | 1 Participants | 1 Participants |
| Race (NIH/OMB) Asian | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Black or African American | 1 Participants | 4 Participants | 5 Participants |
| Race (NIH/OMB) More than one race | 0 Participants | 1 Participants | 1 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 1 Participants | 1 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 0 Participants | 1 Participants | 1 Participants |
| Race (NIH/OMB) White | 28 Participants | 23 Participants | 51 Participants |
| Region of Enrollment United States | 29 Participants | 31 Participants | 60 Participants |
| Sex: Female, Male Female | 20 Participants | 21 Participants | 41 Participants |
| Sex: Female, Male Male | 9 Participants | 10 Participants | 19 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 29 | 0 / 31 |
| other Total, other adverse events | 4 / 29 | 0 / 31 |
| serious Total, serious adverse events | 0 / 29 | 0 / 31 |
Outcome results
Change in Hours of Sitting Time
Average hours of sitting time over the last 7 days measured at baseline and 12 weeks later
Time frame: 12 weeks
Population: 6 Healthy Living participants withdrew before completing the study
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| I-STAND | Change in Hours of Sitting Time | -70.1 minutes | Standard Deviation 104 |
| Healthy Living | Change in Hours of Sitting Time | 6.5 minutes | Standard Deviation 69 |
Blood Pressure (Systolic Blood Pressure)
Change in average of second and third blood pressure reading (for systolic blood pressure), from baseline to 12 weeks
Time frame: 12 weeks
Population: 6 Healthy Living participants withdrew before completing the study
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| I-STAND | Blood Pressure (Systolic Blood Pressure) | -3.4 mmHg | Standard Deviation 15.7 |
| Healthy Living | Blood Pressure (Systolic Blood Pressure) | -1.5 mmHg | Standard Deviation 13.8 |
Depressive Symptoms
Change in Patient Health Questionnaire (PHQ-8) scale score, from baseline to 12 weeks. The scale range is 0 to 24 with higher scores representing higher depressive symptoms. Scores of 10 or more are considered major depression.
Time frame: 12 weeks
Population: 6 Healthy Living participants withdrew before completing the study
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| I-STAND | Depressive Symptoms | -1.0 units on a scale | Standard Deviation 2.3 |
| Healthy Living | Depressive Symptoms | -0.6 units on a scale | Standard Deviation 2.5 |
Fasting Glucose (mg/dL)
Change in fasting glucose (mg/dL) from finger stick blood draw, from baseline to 12 weeks
Time frame: 12 weeks
Population: 6 Healthy Living participants withdrew before completing the study
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| I-STAND | Fasting Glucose (mg/dL) | 8.8 mg/dL | Standard Deviation 30.6 |
| Healthy Living | Fasting Glucose (mg/dL) | 2.4 mg/dL | Standard Deviation 10.3 |
Periods of Sitting for 30+ Minutes
Change in average daily number of activPAL-measured periods of sitting for 30+ minutes without standing, from baseline to 12 weeks
Time frame: 12 weeks
Population: 6 Healthy Living participants withdrew before completing the study
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| I-STAND | Periods of Sitting for 30+ Minutes | -2.5 bouts | Standard Deviation 3.6 |
| Healthy Living | Periods of Sitting for 30+ Minutes | 0.1 bouts | Standard Deviation 2.7 |
Physical Function
Change in Short Physical Performance Battery (SPPB) scale score, from baseline to 12 weeks. The range of scores is 0 to 12, higher values represent better physical function.
Time frame: 12 weeks
Population: 6 Healthy Living participants withdrew before completing the study
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| I-STAND | Physical Function | -0.5 units on a scale | Standard Deviation 2.2 |
| Healthy Living | Physical Function | 0.2 units on a scale | Standard Deviation 1.2 |
Sit-to-stand Transitions
Change in average daily number of activPAL-measured sit-to-stand transitions, from baseline to 12 weeks
Time frame: 12 weeks
Population: 6 Healthy Living participants withdrew before completing the study
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| I-STAND | Sit-to-stand Transitions | -0.1 transitions | Standard Deviation 10.4 |
| Healthy Living | Sit-to-stand Transitions | 2.2 transitions | Standard Deviation 11.8 |
Total Cholesterol (mg/dL)
Change in total cholesterol (mg/dL) from finger stick blood draw, from baseline to 12 weeks
Time frame: 12 weeks
Population: 6 Healthy Living participants withdrew before completing the study
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| I-STAND | Total Cholesterol (mg/dL) | 6.0 mg/dL | Standard Deviation 21.5 |
| Healthy Living | Total Cholesterol (mg/dL) | 0.4 mg/dL | Standard Deviation 28 |