You're losing weight, maybe supported by GLP-1 medication. Faster than you expected, maybe. And somewhere along the way — a Reddit thread, your GP, a friend who's also on it — you've heard the same thing: you need to lift weights.
The problem is you've never lifted weights in your life. Or you did, briefly, fifteen years ago, and the memory is mostly of feeling out of place. The gym feels like somewhere other people go. People who already know what they're doing.
I work with people in exactly this position every week here in West Cumbria. Most of them haven't told their colleagues they're on Mounjaro or Wegovy. Some haven't told their friends. That's normal, and it shapes everything about how I run sessions — privacy first, no judgement, no assumptions about what you should already know.
This guide is the conversation I have with every new client before we start. What resistance training actually does on these medications, what "beginner" really means, and how my 4-session framework gets you from never having touched a barbell to training confidently on your own. By the end of it you'll know whether this is for you, and what to do next if it is.
Why Resistance Training Matters More on GLP-1s
When you lose weight without resistance training, somewhere between 25% and 45% of what you lose is lean tissue. The STEP-1 trial on semaglutide, when researchers looked closely at body composition, found that 45% of the weight lost was lean mass — almost half. SURMOUNT-1 on tirzepatide came in better at around 26%, but that's still over a quarter of every kilo lost coming from muscle, bone, and organ tissue rather than fat. This is true of any weight loss method, but on GLP-1 medications it becomes a bigger deal for two reasons.
First, the rate of loss is faster than most lifestyle-based dieting. The STEP trials on semaglutide showed average losses of around 15% of body weight over 68 weeks, and the SURMOUNT trials on tirzepatide pushed that higher again. Faster loss means a bigger absolute amount of lean tissue gone if you do nothing to protect it.
Second, the appetite suppression that makes the medication work also makes it harder to eat enough protein. Protein is what gives your body the signal to hold onto muscle when you're in a calorie deficit. If you're eating 1,200 calories a day because food just doesn't appeal anymore, and most of those calories are carbs and a bit of cheese, your body has no reason to preserve muscle — so it doesn't.
Resistance training is the other half of that signal. When you load a muscle under tension regularly, you give your body a direct mechanical reason to keep it. Combined with adequate protein, the research consistently shows you can shift the ratio of fat-to-lean loss significantly in your favour — sometimes preserving lean mass almost entirely while still losing meaningful weight.
Cardio doesn't do this. Walking 10,000 steps doesn't do this. They're useful for general health, but they don't send the "keep this muscle" signal. Only loading the muscle does.
The practical version: if you finish your time on the medication having lost weight but also having lost strength, energy, and the shape you wanted, the weight loss will feel like a hollow win. You'll be smaller but weaker, and you'll have lost the metabolic engine that makes maintenance easier. Resistance training is what stops that happening.
What "Beginner" Actually Means Here
I use the word beginner deliberately, and I mean it more narrowly than most trainers do.
A beginner, in my framework, is someone who has either never followed a structured resistance training programme, or hasn't trained consistently in the last ten years. If you did a bit of Body Pump in 2014, you're a beginner. If you lifted seriously in your twenties but stopped when the kids arrived, you're a returner — different category, different starting point, and we'd have a different conversation.
This matters because beginner programming isn't intermediate programming with lighter weights. The whole point of the first few months is teaching your nervous system how to produce force in patterns it doesn't yet recognise. The weight on the bar is almost the least important variable. Movement quality, breathing, bracing, and learning what "hard" actually feels like — that's the work.
If you're a true beginner, the rest of this guide is for you. If you've trained before and you're coming back after a long gap, the principles still apply, but we'd move faster through the early stages and the 4-session framework would perhaps be more in depth.
The 4-Session Beginner Framework
Every new client at Reload.Aim.Fire goes through the same four-session block before we talk about what happens next. The structure is deliberate: two lower-body sessions to build the foundations of squat and hinge, then an upper-body push session, then an upper-body pull session. By the end of the block you'll have moved through every fundamental pattern under load — and you'll know what a complete training week looks like for the rest of your time on the medication.
A core principle runs through all four sessions: every loaded movement is scaled to where you actually are. The big lifts — squat, hip thrust, press — each have a progression ladder running from bodyweight or very light dumbbells up to barbell work. You start on the rung that matches your current ability, and you move up only when the current rung is comfortable and crisp. For a true beginner, that could mean we stick to bodyweight or light dumbbell variations before any barbell appears. That's a feature of the programme, not a failure to progress.
Session 1: PAR-Q, assessment, squat and hinge foundations
The first session starts with paperwork — a PAR-Q health questionnaire, go over the T&Cs and a proper conversation about your goals, your medication, your week, and what you're realistically able to commit to. None of this is a tick-box exercise. Programmes that ignore real life fail.
After that we move into the foundational lower-body patterns. The hip hinge taught carefully, maybe with a dowel down the spine, so you can feel exactly what a neutral back position is. Bodyweight glute bridges to wake up muscles that get switched off from sitting at a desk. A kettlebell deadlift — your first proper lift, kept deliberately light. And the squat, scaled to where you are: that might be an air squat, a box squat to a plyo box, or a goblet squat with a kettlebell at the chest. The goal of session one is movement quality, confidence, and a positive first experience — not a strength test.
Session 2: Squat, hinge and hip thrust progression
Session two builds on the foundation. The squat continues up its ladder — most beginners spend Session 2 still at goblet or box squat, but clients who tracked well in Session 1 may move to a 15kg bar box squat. The hip thrust makes its debut, starting as a bodyweight bridge against a bench and progressing to a dumbbell across the hips, with the barbell version available later for those who are ready. The kettlebell deadlift returns as a refresher with an optional dumbbell variation if you're tracking well.
Loading is conservative throughout. You'll lift less weight than you think you can. That's deliberate — people who start too heavy in week two almost always either hurt themselves or quit within a month.
Session 3: Push patterns and shoulders
The first upper-body session, and usually a welcome change after two leg-focused sessions. Push-ups first — perhaps incline against a bench or a wall, or on knees, or maybe straight on the floor. Then the main movement of the day: the press, scaled to where you are. For a true beginner that's likely a dumbbell floor press with light weights — sometimes as light as 2.5kg per hand, and there's no shame in that. If its safe for you individually it might be a dumbbell bench press on a flat bench or get hands on with a 15kg or 20kg barbell. A half-kneeling single-arm overhead press teaches vertical pressing without overloading the lower back. Lateral raises and tricep pushdowns close out the direct shoulder and arm work, and band pull-aparts balance all the pressing.
Upper body sessions tend to feel less demanding on energy systems than leg days. If you've had a low-fuel few days on the medication, this is often the session to push slightly harder on.
Session 4: Pull patterns, glute accessory and finishers
The pull-focused session that balances Session 3. Single-arm dumbbell rows on a bench for horizontal pulling. Lat pulldowns with the cable rope for vertical pulling. Inverted rows on the barbell set in the squat rack — a beginner-appropriate bodyweight movement that scales by adjusting the angle of your body. Face pulls with the band for the rear shoulders.
We return to the hinge with dumbbell Romanian deadlifts, then dumbbell split squats for single-leg strength — a static-position alternative to lunges that's significantly safer for beginners. Bicep curls and calf raises round out the accessory work, finishing with dead bugs or planks for core.
By the end of session four you've trained every fundamental pattern, you understand the basic structure of a balanced training week, and you will be able to start a programme you can run independently. You'll also know what to expect from your body across the medication cycle, what to do when nausea or low fuel show up, and how to read your own recovery.
What comes after the four sessions
The 4-session block isn't where training ends — it's where the real work begins. From here, most clients pick one of three routes: independent training at a local gym, perhaps following a programme or template, that I can recommend based on your goals, or perhaps working with a local PT for weekly sessions with a written programme and monthly check-ins, or a hybrid of both. I have a close ties to many local fitness facilities so the transition to a commercial gym, if you want it, is a supported handover rather than a leap into the unknown.
I also offer an optional 5th session where I accompany you to the gym you have chosen to join. I’ll meet you in the car park so we walk in together with our heads held high, meet the staff, be with you through the induction process and even do your first workout with you so you don’t have to take those first steps alone. Totally optional, potentially invaluable.
Common Beginner Mistakes on GLP-1s
A few patterns come up again and again. None of them are about lifting technique. They're about how the medication changes the rules of training in ways most generic fitness advice doesn't account for.
Under-eating protein. This is the big one. You're not hungry, so you skip meals, and when you do eat you reach for what's appealing rather than what's useful. A morning where you've had a coffee and half a piece of toast is not a morning that's going to support strength training. Aim for protein with every meal even when you don't feel like it — your training results depend on it more than your training itself does.
Training fasted when nauseous. There's a temptation, especially early in titration, to train without eating because the thought of food is unpleasant. This rarely goes well. Even a small amount of carbohydrate 30 to 60 minutes before training — a banana, a slice of toast with honey — usually makes the session significantly better and reduces post-session crashes.
Going too heavy too soon. The scale is moving, you feel lighter and stronger relative to your old self, and the temptation is to push the weights up faster than your tendons and connective tissue can adapt. Muscle responds to load quickly. Tendons take months. Beginners who chase weight numbers in the first eight weeks frequently end up with elbow or knee pain that derails everything.
Neglecting recovery. You're in a calorie deficit, possibly sleeping less because of medication side effects, and adding a new physical stressor on top. Recovery isn't optional in this context — it's the limiting factor. Two to three quality sessions a week with good recovery will outperform five rushed sessions every time.
Treating training as a way to "earn" food. This mindset is especially damaging on GLP-1s because your appetite signals are already disrupted. Training is not punishment for eating, and food is not a reward for training. The sooner you separate the two completely, the better your relationship with both will be.
Why a Garage Gym Beats a Commercial Gym for Beginners
I'm not anti-commercial-gym. I recommend every client joins a regular gym in session four for good reasons. But for the first few weeks of training, a private garage gym has structural advantages that genuinely matter for the kind of clients I work with.
Nobody else is there. That sounds obvious until you've stood in the free weights section of a busy gym at 6pm, watched someone who clearly knows what they're doing pick up a barbell, and decided you'd rather come back tomorrow. Privacy isn't a luxury for someone who hasn't told their friends they're on the medication — it's the thing that makes them turn up at all.
You get the equipment you need, when you need it. No waiting for the squat rack. No moving on because someone's hovering. The whole hour is yours. Attention is undivided. In a commercial gym setting your trainer often has one eye on the clock and another on the next client. In a one-to-one garage setting there is no next client during your hour. That changes the quality of instruction significantly.
And it's a few minutes from anywhere in West Cumbria. The Cleator Moor location means clients from Whitehaven, Egremont, Cockermouth, and Workington can be in and out without the journey eating into their day.
When You're Ready to Move On
I'm going to be straight about this because most fitness trainers won't be: not every client should stay with me forever, and pretending otherwise is dishonest.
When, after the 4-session block you feel confident running your programme alone and feel confident to train independently, that's a good outcome. It's what the framework is designed to produce.
If you want ongoing one-to-one coaching because you value the accountability, the guidance, or just the structure of having a session in the diary, that's also a good outcome, and I can recommend local PTs that could be a good fit for you .
What I won't do is sell you sessions you don't need. The clients who get the most out of working with me are the ones who genuinely want to learn the basics to then move into a commercial gym, my sessions are enough that you can do just that.
Frequently Asked Questions
Do I need to lift heavy weights to see results?
No. The research is very clear that for beginners, weight load is one of several variables that drive adaptation, and it's not even the most important one in the first few months. Consistent training with appropriate progression, even with relatively light weights, will produce significant strength and muscle preservation results — particularly on a GLP-1 where the bar is protecting what you already have rather than building large amounts of new muscle.
Will resistance training make me bulky?
No. This question comes up most often from female clients, and the honest answer is that building visible muscle mass is difficult and slow even for people actively trying to do it. In a calorie deficit on a GLP-1 medication, it's effectively impossible. What resistance training will do is help you keep the muscle you already have, which means the weight you lose is mostly fat — which is the shape change most people actually want.
How often should I train each week?
For beginners on GLP-1 medications, two quality sessions a week is the sweet spot. Three is the upper end. Anything more than that early on usually compromises recovery and produces worse results, not better ones.
What if I feel sick from the medication on a training day?
Skip it. Move it. Reduce it. A bad session forced through nausea is not a productive session — it's just an unpleasant one that makes you less likely to come back. Part of what we work on together is learning to read your body's signals across the medication cycle and training around them intelligently.
How is this different from working with a normal personal trainer?
Most fitness instructors and PTs are excellent at general fitness coaching but have never worked with GLP-1 clients specifically, some are unfortunately still against the use of medication for weight loss. This can make the idea of seeking help or guidance even more intimidating. Remember, you won’t hear “eat less, move more” from us.
Is this confidential?
Yes. Sessions are one-to-one in a private garage gym, your information stays between us, and I don't post client photos, names, or stories without explicit permission. If discretion is the reason you've been putting this off, it's also the reason I built the business this way.
Sources & Further Reading
The research-based claims in this guide reference the following published studies:
Wilding JPH, Batterham RL, Calanna S, et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1 Trial). New England Journal of Medicine. 2021;384(11):989–1002. The phase 3 trial that established semaglutide's efficacy for weight management, reporting mean weight loss of 14.9% over 68 weeks at the 2.4mg weekly dose. doi:10.1056/NEJMoa2032183
Jastreboff AM, Aronne LJ, Ahmad NN, et al. Tirzepatide Once Weekly for the Treatment of Obesity (SURMOUNT-1 Trial). New England Journal of Medicine. 2022;387(3):205–216. The phase 3 trial establishing tirzepatide's efficacy, reporting mean weight loss of 15.0%, 19.5%, and 20.9% at the 5mg, 10mg, and 15mg weekly doses over 72 weeks. doi:10.1056/NEJMoa2206038
Neeland IJ, Linge J, Birkenfeld AL. Changes in lean body mass with glucagon-like peptide-1-based therapies and mitigation strategies. Diabetes, Obesity and Metabolism. 2024;26(Suppl 4):16–27. Reports that in the STEP-1 trial, lean mass reduction accounted for 45.2% of total weight lost on semaglutide, and 25.7% in SURMOUNT-1 at the highest tirzepatide dose. doi:10.1111/dom.15728
Conte C, Hall KD, Klein S. Is Weight Loss-Induced Muscle Mass Loss Clinically Relevant? JAMA. 2024;332(1):9–10. A clinical perspective on the significance of lean mass loss during pharmacological weight management.
Prado CM, Phillips SM, Gonzalez MC, Heymsfield SB. Muscle matters: the effects of medically induced weight loss on skeletal muscle. The Lancet Diabetes & Endocrinology. 2024;12(11):785–787. A commentary on the importance of preserving muscle during medication-induced weight loss.
This guide reflects current evidence and the author's professional practice as a qualified Level 2 Fitness Instructor (completing Level 3 Personal Trainer qualification). It is not medical advice. If you are using GLP-1 medications, your prescribing clinician remains your primary source of medical guidance. Resistance training programmes should be appropriate to your current fitness level and any individual health considerations.
Ready to Start?
If you're in West Cumbria and you've read this far, you already know whether this is for you.
The first step is the Beginner Course, being the 4 (or 5!) session package — a four-session block that takes you through exactly the framework above, from movement screening to ongoing coaching support. After that, you decide what comes next.
Enquiries are confidential. You can message me directly without it appearing on any public page, and I'll come back to you within 24 hours with available times and answers to anything you want to ask before booking.