Physical Activity for Obesity
Discover SMART goals, the 5A approach, physical activity for obesity to overcome barriers, and how regular movement improves heart health, blood sugar control, muscle preservation, and long-term well-being.
Exercise Still Matters—Even If You’re Taking GLP-1 Weight Loss Medications
GLP-1 receptor agonists have transformed obesity treatment, helping many people achieve significant weight loss.
But medication isn’t the whole story.
A new scientific statement from the American Heart Association (AHA) highlights that regular physical activity provides important health benefits that weight-loss medications alone cannot fully replace.
✅ Exercise helps:
- ❤️ Improve heart health
- 🩸 Better control blood sugar
- 💪 Preserve muscle strength and physical function
- 📉 Lower the risk of cardiovascular disease
- 😊 Improve overall well-being and quality of life
The AHA recommends that people with obesity combine regular physical activity with treatments such as GLP-1 medications or bariatric surgery whenever possible. This combination can maximize health benefits beyond weight loss alone.
Why is exercise still important?
Even if you don’t lose much weight, regular physical activity can:
❤️ Lower blood pressure
🩸 Improve blood sugar control and reduce insulin resistance
🩺 Improve cholesterol levels (raise HDL and lower triglycerides)
🫀 Boost heart and lung fitness
💪 Preserve muscle mass and strength
📉 Reduce long-term risk of cardiovascular disease
Exercise protects your muscles
People taking GLP-1 medications often lose both fat and muscle during weight loss. Resistance (strength) training helps preserve muscle, while aerobic exercise improves heart health. Together, they provide the greatest health benefits.
What does the research show?
Some studies suggest that people become less physically active after starting GLP-1 medications, even though exercise is an important part of treatment. Experts warn that relying on medication alone may reduce many of the long-term health benefits.
The best approach
The American Heart Association (AHA) recommends combining:
✅ GLP-1 medications (when prescribed)
✅ Regular aerobic exercise (walking, cycling, swimming)
✅ Strength training at least twice a week
✅ Healthy eating habits
Clinical Strategies to Promote Physical Activity
- The AHA recommends starting modest physical activity goals rather than strictly adhering to 150 minutes per week, emphasizing gradual progression using the 5A model: assess, advise, agree, assist, and arrange.
- Use of wearable devices supports motivation and provides objective data for clinicians to monitor and guide exercise adherence effectively.
- Physicians should help patients overcome barriers to physical activity by suggesting practical solutions and collaborating with other healthcare professionals for sustained, comprehensive obesity care
How Healthcare Professionals Can Help
The AHA recommends using the 5A approach to support patients:
✔️ Assess – Understand current activity levels and readiness to exercise.
✔️ Advise – Explain the health benefits of physical activity.
✔️ Agree – Set realistic goals together.
✔️ Assist – Help overcome barriers like lack of time, pain, or limited resources.
✔️ Arrange – Follow up regularly to monitor progress and provide encouragement.
Set SMART Goals
Goals are more successful when they are:
- Specific
- Measurable
- Achievable
- Relevant
- Time-bound
Example: Walk for 15 minutes after dinner, 5 days a week.
Use Technology to Stay Motivated
Simple tools can make a big difference:
⌚ Smartwatches
👟 Step counters (pedometers)
📱 Fitness or health apps
These devices help track progress, encourage consistency, and provide useful information for healthcare providers.
Overcoming Everyday Barriers
If finding time or a place to exercise is difficult, small changes still count:
🚶 Park farther from your destination.
🪜 Take the stairs instead of the elevator.
🏡 Walk around your home or neighborhood.
💃 Stay active with household chores or dancing.
The goal is to make movement a natural part of daily life, not just another task on your to-do list.
🤝 Team-Based Support Works Best
Managing obesity isn’t just about medication or willpower. Physicians, nurses, dietitians, physical therapists, and behavioral health professionals can work together to help patients build healthier habits that last.
💙 Takeaway Message
Some physical activity is always better than none.
Whether you’re using GLP-1 medications, following a healthy eating plan, or simply trying to become more active, regular movement remains one of the most powerful tools for improving heart health, preserving muscle, controlling blood sugar, and supporting long-term well-being.
