I've had the same conversation four times this fall. Different towns. Hollis, Amherst, two in Nashua. Same story.
Someone successful, mid-forties to early sixties, started a GLP-1 earlier this year. The scale is moving. Their doctor is happy. Their friends are noticing.
And then they say some version of this: "I'm lighter, but I feel weaker. Stairs are harder. I look smaller, but not better."
They're not imagining it.
The part of the prescription nobody hands you
GLP-1 medications work. They quiet appetite and the weight comes off. That's real, and for a lot of people it's genuinely life-changing.
But the body doesn't choose what it loses. A research review from UKactive and Les Mills found that 20 to 50 percent of the weight lost on these medications can come from muscle and bone (source). The same report compared the scale of lean mass loss to what people experience after bariatric surgery, or roughly a decade of aging.
Think about that for a second. You're paying for a medication to get healthier. Without the right training, part of what you're buying is an older body.
To be fair, newer research suggests the muscle loss may be less severe than first feared, since some of the measured "lean mass" loss is actually the liver shrinking (source). But every credible voice in that debate lands in the same place: pair the medication with resistance training and adequate protein.
Why muscle is the asset you protect
Muscle isn't vanity. It's where your body stores and burns glucose. It protects your joints. It's what keeps you from falling at 75.
Low muscle mass is an independent risk factor for dying early. Not a cosmetic issue. A survival issue.
So here's a question worth sitting with: when you come off the medication, which most people eventually do, what kind of body do you want to be maintaining?
A smaller version of the old one? Or a stronger one that burns more on its own?
What actually works
The research is consistent. Strength training two to three times a week, combined with enough protein, signals your body that muscle is worth keeping. Clinicians at Hospital for Special Surgery say the same thing: lift, or your body will happily let the muscle go (source).
What that looks like in practice for our clients:
Progressive resistance work built around big movement patterns: squat, hinge, push, pull, carry.
Protein targets set for your body weight and goal, not a generic number off the internet.
Load adjusted to how you feel. GLP-1 side effects come in waves. Nausea weeks are real. A good coach programs around them instead of pretending they don't exist.
Tracking strength, not just weight. If your squat is going up while the scale goes down, you're losing the right thing.
Why the setting matters more than people think
Here's what I see. People on GLP-1s often feel self-conscious walking into a gym mid-transformation. Low energy days make the drive feel impossible. So they skip it, and the muscle quietly goes.
That's the gap we built Traveling Trainer to close. We bring a fully equipped training van to your driveway in Nashua, Hollis, Amherst, Milford or anywhere in Southern NH. Your coach shows up with everything. You walk out your front door and train. No commute, no audience, no excuse to skip the session that matters most.
Our coaches come from sports performance and physical therapy backgrounds. That matters when your body is changing fast and you need someone who knows the difference between productive discomfort and a warning sign.
If you're on a GLP-1, or your doctor has raised it, the best time to start lifting was the day you started the medication. The second best time is this week.
Book a free consult and we'll build your plan around your medication, your schedule and your goals.
FAQ: GLP-1 medications and strength training
Do you lose muscle on Ozempic, Wegovy or Zepbound? Yes, you can. Any rapid weight loss, including from GLP-1 medications, can include muscle and bone. Research estimates range from 20 to 50 percent of total weight lost. Strength training and adequate protein significantly reduce that loss.
How often should I strength train on a GLP-1? Most evidence supports two to three resistance training sessions per week, plus regular moderate activity. Start conservatively and build as side effects allow.
Is there a personal trainer in Nashua NH who works with GLP-1 clients? Yes. Traveling Trainer works with GLP-1 clients across Nashua, Hollis, Amherst, Milford and Southern NH, training them at home with a fully equipped mobile van and coaches experienced in physical therapy principles.
Should I talk to my doctor before starting? Always. We coordinate with your prescribing physician's guidance and adjust training around your dosing and side effects.
