Healthy Aging Resources to Thrive (HART) uses a rigorous two-stage randomized control design, adapted and refined based on pilot studies, to test a novel intervention to reduce sitting time in older adults. Half the participants will be randomized to the intervention aimed at decreasing sitting time, and the other half will be randomized to a healthy living control that does not focus on reduced sitting time. After 6 months, the intervention group will be further randomized so that half continue with the intervention and the other half receive no further intervention. All participants will be followed for 12 months.
Healthy Aging Resources to Thrive (HART) is a two-stage randomized controlled trial (RCT) of adults over age 60 with obesity to determine the efficacy of a novel sitting-reduction intervention and its impact on cardiometabolic risk markers. Participants will be randomized to a 6-month sitting reduction intervention (termed I-STAND) or healthy-living attention control (Stage 1). All participants will be mailed a scale and a blood pressure monitor (to keep) which will be used during the phone-based measurement visits at Baseline, 3, 6 and 12 months. All participants will have phone-based Coaching sessions. After 6 months, I-STAND participants will be re-randomized to receive either booster sessions or no further intervention (Stage 2). Attention control participants will receive no further intervention. All participants will be followed for 12 months total with phone-based assessments at baseline, 3, 6, and 12 months. Primary outcomes are reduction in sitting time at 6 months, objectively measured using the activPAL device, and blood pressure. The design will answer novel questions about the impact of sitting reduction on cardiometabolic risk markers as well as maintenance of sitting reduction. UPDATE: As of 3/31/31, (final year 5) of the study, participants randomized to the i-STAND intervention will no longer be re-randomized at 6 months. We will no longer follow participants to the 12-month timepoint \& will end all activities after 6-months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
Via in-person and phone coaching sessions, participants randomized to this arm will be coached to find ways to sit less and stand more, and look for ways to change their home environment to encourage this, as well as look at how their lifestyle may contribute to their sitting time. Participants in this arm may be re-randomized at the half-way point to continue with additional phone coaching sessions. (As of 3/31/2022 Re-randomizations are no longer taking place)
In this arm, participants will have phone coaching sessions focused on a variety of topics aimed at improving healthy habits. There is no focus on standing more or sitting less.
Kaiser Permanente Washington
Seattle, Washington, United States
Change in Time Spent Sitting or Lying Down at 6 Months
Time (minutes) spent sitting/lying during waking hours will be measured objectively by the activPAL worn for one week following each measurement visit.
Time frame: Change from Baseline at 6 months
Change in SystolicBlood Pressure at 6 Months
Another primary outcome is change in systolic blood pressure. This will be measured at the measurement visits using blood pressure monitors mailed to the participant
Time frame: Change from Baseline at 6 months
Change in Diastolic Blood Pressure at 6 Months
Another primary outcome is change in diastolic blood pressure
Time frame: Change from Baseline at 6 months
Change in Weight at 6 Months
Participants provide their weight at each measurement visit. Weight is measured in pounds using a scale mailed to the participant.
Time frame: Change from Baseline at 6 months
Change in BMI at 6 Months
BMI was calculated as \[weight in kg\]/\[height in m\]2.
Time frame: Change from Baseline at 6 months
Change in Waist Circumference at 6 Months
Participants provided their waist circumference at each measurement visit. Waist circumference was measured at the superior border of the iliac crest.
Time frame: Change from Baseline at 6 months
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NONE
Enrollment
283