Key takeaways
- Muscle growth needs three things: progressive overload, enough protein (~1.6–2.2 g/kg) and a slight calorie surplus.
- Train each muscle about twice a week with 10–20 hard sets, most taken close to failure.
- You grow during recovery — prioritise 7–9 hours of sleep and ~48 hours before training a muscle hard again.
- Consistency and progression over months matter more than any specific split or programme.
Building muscle isn't complicated, but it is precise. Strip away the noise and growth comes down to three drivers — applied consistently, for months, around adequate recovery.
The three drivers of muscle growth
- Progressive overload. Your muscles adapt to a stimulus that exceeds what they're used to. In practice that means gradually doing more over time — more weight, more reps, or more quality sets — on the lifts that matter.
- Mechanical tension through a full range of motion. Train each muscle hard, with control, taking most sets close to failure (roughly 1–3 reps in reserve).
- Enough protein and energy. Muscle is built from protein and fuelled by calories. Without enough of both, you train hard for little return.
How to train
For most people, training each muscle group twice a week with 10–20 hard sets per muscle per week is a productive range. Choose a split you can stick to — full-body, upper/lower, or push/pull/legs all work (compare the splits). Prioritise compound lifts (squat, hinge, press, row, pull-up) and add isolation work for the muscles you most want to grow.
The single biggest predictor of progress is consistency and progression, not the specific split. Log your sessions so you can actually add weight or reps over time — guesswork stalls growth. Our muscle-growth programme periodises all of this from your training data.
How to eat
- Protein: aim for 1.6–2.2 g per kg of bodyweight per day. Spread it across 3–4 meals. Calculate yours with the protein calculator.
- Calories: a slight surplus (roughly 10–15% above maintenance) supports lean gains without unnecessary fat. Find your numbers with the maintenance calorie and calorie target calculators.
- Carbohydrate fuels hard training; don't fear it. Use the macro calculator to split your intake.
Protein Calculator
About 44–59 g per meal across 3–4 meals.
Recovery — where muscle is actually built
You grow between sessions, not during them. Sleep 7–9 hours, manage stress, and give each muscle ~48 hours before training it hard again. If your recovery data (HRV, sleep, resting heart rate) is trending the wrong way, that's a signal to back off — exactly what data-driven coaching watches for.
Common mistakes that stall progress
- Programme-hopping instead of progressing one plan.
- Training hard but never tracking, so overload never actually happens.
- Under-eating protein or calories.
- Chronically poor sleep and recovery.
Get the three drivers right, stay consistent, and let the data tell you when to push and when to recover. That's how muscle is built — and it's exactly what the Method is designed to do.
Sources & further reading
- ISSN Position Stand: Protein and Exercise (Jäger et al., 2017) — J. Int. Soc. Sports Nutrition
- Resistance-training volume and hypertrophy: a meta-analysis (Schoenfeld et al., 2017) — PubMed
- Exercise & strength guidelines — NHS
Citations are provided for transparency. This is general information, not medical advice — always consult a qualified professional about your own circumstances.