The 3x-per-week resistance workout that preserves muscle on a GLP-1

On a GLP-1, the scale moves whether you train or not. The question is what comes off the scale.

In the SURMOUNT-1 trial, lean mass accounted for roughly 25–40 percent of total weight lost in patients on tirzepatide. The STEP trials showed similar numbers for semaglutide. That's a meaningful problem — muscle is what runs your resting metabolism, supports your joints, and keeps you functional through your 50s, 60s, and 70s.

Two things change the math: protein (covered in body recomp on GLP-1s) and resistance training. This is the workout side. Three sessions a week. Six compound lifts. About 45 minutes per session. It's the minimum effective dose for muscle preservation during a caloric deficit, and it's enough.

Why this template, specifically.

The American College of Sports Medicine resistance-training guidelines recommend training each major muscle group 2–3 times per week with progressive resistance. A 3-day full-body split is the lowest-friction way to hit that target — every session covers your whole body, so a missed workout doesn't leave one muscle group untouched for a week.

The compound-lift focus is deliberate. Compound movements (squat, hinge, push, pull) recruit the largest amount of muscle mass per minute of training time, which is exactly what you need when training time is finite and you're in a calorie deficit. Isolation exercises (curls, calf raises, lateral raises) are fine additions but aren't the foundation.

The schedule

• Monday — Full body A
• Tuesday — Rest or 30-minute walk
• Wednesday — Full body B
• Thursday — Rest or 30-minute walk
• Friday — Full body A (alternating with Wednesday's B each week)
• Saturday — Optional Zone 2 cardio (30–45 min) or rest
• Sunday — Rest

You'll do Workout A twice and Workout B once one week, then B twice and A once the next. Over a month, every lift gets hit 6 times — enough volume for steady strength gains even at a caloric deficit.

Workout A — Squat-focused

Warm up 5 minutes: easy bike or treadmill walk, then 2 sets of 10 bodyweight squats and 10 band pull-aparts.

1. Goblet squat or barbell back squat — 3 sets of 6–8 reps Rest 2 minutes between sets. Pick a weight you'd fail at rep 10.

2. Dumbbell Romanian deadlift — 3 sets of 8–10 reps Hips back, slight knee bend, dumbbells slide down the front of your thighs. You'll feel it in the hamstrings.

3. Dumbbell bench press or push-up — 3 sets of 8–10 reps Push-ups work fine if dumbbells aren't available. Elevate hands on a bench if you can't do full push-ups yet.

4. Single-arm dumbbell row — 3 sets of 8–10 reps per side One hand and one knee on a bench, opposite arm rows the dumbbell up to your hip.

5. Plank — 3 sets, hold for 30–45 seconds Straight line from head to heels. Stop when your form breaks, not when the time hits.

6. Walking lunges or step-ups — 2 sets of 10 per leg Bodyweight is fine to start; add a dumbbell in each hand when 10 per leg feels too easy.

Workout B — Deadlift-focused

Same warm-up as Workout A.

1. Trap-bar deadlift or kettlebell deadlift — 3 sets of 5–6 reps Heavier, lower-rep lift. Pick a weight you'd fail at rep 8.

2. Goblet split squat — 3 sets of 8 per leg Back foot elevated on a bench is the harder progression. Keep the front knee tracking over the toes.

3. Overhead press (dumbbell or barbell) — 3 sets of 6–8 reps Press straight up overhead. Keep ribs down — don't let your lower back arch.

4. Lat pulldown or pull-up — 3 sets of 8–10 reps Use an assistance band on pull-ups if needed. Pull until your chin clears the bar (or the bar reaches your chest on lat pulldowns).

5. Dead bug — 3 sets of 8 per side Better core training than crunches. Press low back into the floor the whole time.

6. Glute bridge or hip thrust — 2 sets of 12–15 Squeeze the glutes hard at the top. Add a dumbbell across the hips when bodyweight is too easy.

Progression: what to add, and when.

Strength training only works if it gets harder over time. The rule:

• When you hit the top of the rep range on all sets with good form, add weight next session.
• Dumbbells: add 2.5–5 lb.
• Barbells: add 5 lb (lower body) or 2.5 lb (upper body).
• If you can't add weight, add 1 rep per set instead.

On a GLP-1, your strength may plateau or even temporarily drop during the steepest weight-loss phase. That's normal. Keep showing up. Once your weight stabilizes, the strength will catch up — and frequently exceed where you started.

Cardio: the part most people overdo.

If you're on a GLP-1, you're already in a meaningful calorie deficit. Adding hours of running on top of that risks pushing the deficit beyond what your body can recover from — which produces hunger spikes, lean-mass loss, and burnout.

What's enough:

• A 30–45 minute walk on rest days. Brisk pace. This is more than most people give credit for — and the CDC notes that 150 minutes of moderate cardio per week is the baseline target. Three walks plus your resistance days hits that.
• One Zone 2 session per week if you have time and energy. Zone 2 is a heart rate where you can hold a conversation but a little breathy — usually 60–70% of max heart rate. 30–45 minutes on a bike, treadmill, or rowing machine.
• Skip the HIIT. High-intensity intervals on top of a GLP-1 calorie deficit is where most patients run themselves into the ground. Re-introduce HIIT once your weight has stabilized.

How to know it's working

Three metrics to watch — not just the scale:

• Training weights: Are they holding steady or going up over a month? If yes, you're preserving (or building) muscle.
• Waist circumference: Down at the waist while training weights hold steady = the result you want.
• DEXA or InBody scan (every 3 months): Fat mass should be dropping meaningfully faster than lean mass.

If the scale is dropping but training weights are also dropping — that's a flag. Your protein intake may be too low, your calorie deficit may be too aggressive, or you may need to slow the dose escalation. Talk to your clinician.

What about TRT and HRT patients?

The same template works — with a few notes:

• On TRT, strength gains tend to come faster once your testosterone is in range. The protocol doesn't change; the response improves.
• On HRT, women in perimenopause often see their first meaningful strength gains in years once estradiol is back online. Bone density also responds to this kind of training in ways cardio alone doesn't deliver.
• Both populations benefit from prioritizing the hinge (deadlift / RDL) and squat patterns — they're the highest-leverage lifts for hormonal-aging bone and muscle health.

What this workout isn't.

• A bodybuilding program. If you want maximum hypertrophy you need 4–5 sessions a week and 12–20 sets per muscle group weekly. This is muscle preservation, not maximization.
• A CrossFit replacement. Different goal. CrossFit emphasizes conditioning + skill; this template emphasizes lifting muscle through a meaningful range against meaningful load.
• Optional. If you're on a GLP-1 and skipping resistance training, you're trading muscle for the same weight loss someone with training would have gotten as fat loss. That's a bad trade.

Three sessions a week. Six lifts. 45 minutes. The weight loss happens whether you do this or not — but only one version leaves you stronger on the other side.

Sources: American College of Sports Medicine resistance-training guidelines; SURMOUNT-1 tirzepatide trial data; CDC physical activity guidelines for adults; International Society of Sports Nutrition position stand on protein.

Editorial disclosure: This article is for informational purposes only and does not constitute medical advice. All treatments at DirectCare AI are prescribed by US-licensed clinicians based on individual medical evaluation. Compounded medications are not FDA-approved as finished products; their active ingredients are individually FDA-approved. Always consult a US-licensed clinician before starting or changing any therapy.