When people start an Ozempic, Wegovy, Zepbound, or Mounjaro prescription and decide to “also add exercise,” nine out of ten of them pick the wrong exercise first. They go hard on cardio, treadmill, bike, elliptical, maybe a class. Cardio feels like the thing you do when you’re trying to lose weight. It burns calories. It makes you sweat. It feels productive.
For someone in a normal calorie range trying to lose some weight, cardio-heavy makes sense. For someone on a GLP-1, it’s the wrong first move. Here’s why.
I’m Jonathan Catlett, owner of Push Performance Training in Bixby. We work with clients across Bixby, Broken Arrow, and South Tulsa on GLP-1s, and this conversation comes up every week. Let me walk through what the order should actually be.
The real job is preserving muscle, not burning calories
The medication is already handling the caloric deficit. Most GLP-1 users are eating 30-50% less than they were before. You don’t need to burn more calories on top of that. You’d have to work really hard to out-burn what the drug is already doing through appetite suppression.
What the medication is NOT doing is telling your body “keep this muscle.” In fact, it’s kind of doing the opposite, the steep calorie drop plus the appetite drop creates the exact conditions where the body burns muscle for fuel. That’s the problem you’re actually trying to solve with exercise.
And the only exercise that solves it is resistance training. Lifting weights. Making your muscles do hard work against progressive resistance. That’s the signal that tells your body “we still need this muscle, don’t eat it.” Cardio doesn’t send that signal.
What excessive cardio actually does on a GLP-1
Cardio isn’t bad. Walking is great. Some cardio is beneficial. But stacking hard cardio on top of the calorie deficit the medication has already created creates three problems:
Accelerates muscle loss. More calories burned without more protein coming in means the body pulls from muscle stores. You end up smaller but weaker.
Deepens fatigue. You’re already running on reduced fuel. Adding an hour of hard cardio a day tanks your recovery capacity. You feel wrecked, which makes sticking with training harder.
Trains your body to get efficient at cardio, not strong. Your body will adapt to the cardio, which means you’ll burn fewer calories doing the same workout over time. Meanwhile you haven’t built any muscle, so your resting metabolism keeps dropping as you lose weight.
The order that actually works
Here’s the priority stack I give every GLP-1 client on day one at Push Performance:
Priority 1: Strength training 2-3 times per week. This is the non-negotiable. If you do nothing else from this list, do this.
Priority 2: Daily walking. 8,000-10,000 steps per day. Low-impact, low-recovery-cost, great for blood sugar regulation and appetite management. Walking won’t hurt your recovery the way harder cardio will.
Priority 3: Protein intake. Covered in its own post. You can’t build or preserve muscle on 50g of protein a day no matter how well you train.
Priority 4: Sleep. Seven to nine hours. Recovery is where muscle is preserved.
Priority 5 (optional, once established): Moderate cardio. After 6-8 weeks of consistent strength training and good protein, you can add one or two moderate cardio sessions per week. Zone 2 (steady, can-hold-a-conversation pace) for 30-40 minutes. This is optional, not required.
Notice what’s NOT here: daily high-intensity cardio, long steady-state cardio sessions, or anything that “really makes you sweat.” None of that is the priority.
What a real week looks like
Here’s an actual weekly template for a GLP-1 client at Push Performance, first 6 weeks:
Monday: Strength session (coached, 45 min)
Tuesday: Walk (8,000+ steps)
Wednesday: Walk (8,000+ steps) + optional light mobility
Thursday: Strength session (coached, 45 min)
Friday: Walk (8,000+ steps)
Saturday: Strength session (coached, 45 min) OR rest day if recovery is poor
Sunday: Rest, walk if you want, eat protein
Two to three strength sessions. Daily walking. No other cardio. That’s it. This is enough. It actually works.
Once someone has 6-8 weeks of this under their belt and their body is handling it well, we can add more. But starting here is what keeps people from burning out in month two.
The “but I want to see fast results” problem
I get it. People on a GLP-1 are motivated. They see the scale moving and they want to amplify it. Doing more cardio feels like it should make things faster.
Here’s what’s actually faster: getting your body composition right the first time. Losing 40 pounds of fat without losing 12 pounds of muscle beats losing 50 pounds where 15 of it was muscle. You’ll look better, feel better, keep the weight off longer, and not end up skinny-fat at your goal weight.
The short-term cardio hit feels productive. The long-term strength strategy actually is productive.
Why this is harder to get right on your own
The reason most people do this backwards isn’t ignorance. It’s that the culture around weight loss is cardio-heavy. Every weight loss commercial, every Peloton ad, every group fitness class tells you that sweating buckets equals progress.
For GLP-1 users, that cultural narrative is actively harmful. You need someone who understands that the game has changed, who programs around reduced recovery, and who can tell you when to push and when to pull back. That’s why coached training, where someone is actually watching your workload week to week, produces different outcomes than a gym membership.
At Push Performance in Bixby, we build programs specifically for the GLP-1 reality: fewer calories, lower recovery, muscle preservation as the primary goal. Every session has a coach on the floor. Every week we check in on what’s working and what isn’t. That’s a different product than “here’s a key card, good luck.”
If you’re on a GLP-1 and you’re stacking cardio hoping it’ll speed things up, come in and let’s talk. There’s a better order for this.
Book a First Conversation at Push Performance →
Push Performance Training is a personal training gym in Bixby, OK, serving clients across Bixby, Broken Arrow, and South Tulsa. Every session includes a coach on the floor. $280/month, no contracts.