Related Experiment Video
Updated: May 14, 2026
10:19
Getting to Compliance in Forced Exercise in Rodents: A Critical Standard to Evaluate Exercise Impact in Aging-related Disorders and Disease
Published on: August 22, 2014
Exercise advice by humans versus computers: maintenance effects at 18 months.
Abby C King1, Eric B Hekler1, Cynthia M Castro1
1Stanford Prevention Research Center, Department of Medicine, Stanford University School of Medicine.
Summary
Automated telehealth counseling maintained physical activity levels in older adults for 18 months, matching human advisor effectiveness. This technology shows promise for public health interventions.
Area of Science:
- Gerontology
- Digital Health
- Behavioral Science
Background:
- Previous studies demonstrated automated telehealth counseling achieved 12-month physical activity levels comparable to human advisors for inactive midlife and older adults.
- Sustained effectiveness of automated interventions compared to human-led programs requires further investigation.
Purpose of the Study:
- To evaluate the 18-month sustained impact of an automated telehealth counseling system versus human advisors on physical activity in older adults.
- To compare the long-term efficacy of automated versus human-led interventions for promoting physical activity.
Main Methods:
- A 6-month follow-up was conducted after a 12-month randomized controlled trial involving participants randomized to human or automated advisor arms (n=73 and n=75, respectively).
- During the follow-up, advisor-initiated contacts ceased, with participants encouraged to self-initiate contact.
- The primary outcome was moderate-to-vigorous physical activity (MVPA), assessed via Stanford Physical Activity Recall.
Main Results:
- No significant differences in 18-month MVPA or adherence to physical activity guidelines were observed between the automated and human advisor groups (p >.50).
- Physical activity levels remained stable between 12 and 18 months within each group.
- The most substantial increases in physical activity for both groups occurred within the first 6 months of the intervention.
Conclusions:
- Automated telehealth advice systems can effectively maintain physical activity gains for at least 18 months, performing similarly to human advisors.
- The widespread adoption of mobile technology supports the potential of automated telehealth for scalable public health initiatives.
- Further research into automated telehealth systems is warranted given their potential for promoting sustained physical activity.
Related Concept Videos
01:27Exercise and Muscle Performance
Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
01:20Exercise and Cardiovascular Response
Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...