Sets, reps and weights in training

How many sets should you do? How heavy should the weight be? These questions haunt almost every gym beginner. The simple truth: sets, reps and weight depend entirely on your goal — and the right combination makes all the difference.

Your rep range depends on your goal

A bodybuilder and a soccer player don’t train the same way — and it’s not just habit. The demands placed on their bodies are completely different. Even bodybuilders themselves change their rep count depending on whether they’re in a mass phase, a strength phase or a pre-contest phase.

A general guide to rep ranges:

• Strength: 1–5 reps
• Strength and mass: 6–8 reps
• Mass (with some strength gain): 8–12 reps
• Muscular endurance: 13–20+

The baseline rep range for bodybuilders is 6–12 reps. If your priority is strength numbers, do most of your training in the 3–5 rep range; if your goal is muscle mass, 6–10 reps is a good fit. From a bodybuilding standpoint, it makes sense to include all of these ranges from time to time — the body adapts quickly to the same stimulus.

Sets and resistance intensity

The weight you use is often expressed as a percentage of your one-rep max — the heaviest weight you can lift for one clean rep.

• Strength: 85%+ of your one-rep max
• Muscle mass: 70–85% of your one-rep max

It is a well-documented fact that resistance in the 85–100% range promotes strength gains. For muscle mass development, varied resistance of 70–85% is effective. So what actually happens if you use too little weight? Your body adapts to it — and the results fail to show up.

Sets for large and small muscles

Training volume, i.e. the number of sets per muscle, depends on how big the muscle is and how intensely you train.

• Large muscle groups (chest, back, etc.): 10–12 sets
• Small muscles (e.g. biceps): 6–9 sets

Why the difference? Take the back as an example. The back isn’t just one big muscle — it’s a whole group: the latissimus dorsi (lats), rhomboids, teres major and minor, trapezius and the erector spinae. Because the back consists of so many muscles and makes up such a large mass, it can tolerate more sets without overtraining. The same goes for the thigh and chest muscles.

Smaller muscles — the biceps and triceps — are much easier to overtrain. 12–15 sets for small muscles can already be too “brutal”. Honestly: if you can do that many sets, your intensity is probably too low. At maximum intensity, ~8–9 sets should be perfectly sufficient.

Training frequency and recovery

If you train intensively — i.e. take each muscle to maximal exhaustion — each muscle should rest for at least 5–7 days. The exact frequency is individual: whether you train a muscle every 5 or 7 days depends on your personal recovery speed.

Only you can make the call. You need to learn to “read” yourself — do you arrive at your next workout fresher, or still tired?

If you’re genetically average — meaning you’re not an exceptionally fast recoverer — don’t train at high intensity more than two days in a row. Give your body the time and opportunity to grow.

Sample training plan for muscle building

Here is one practical example of how the number of sets and the split of muscles could look over a week:

• Day 1: Back, traps, rear delts
• Day 2: Triceps, biceps, forearms
• Day 3: Rest (aerobic training if you like)
• Day 4: Front and back of the thighs
• Day 5: Chest, shoulders
• Day 6: Rest (aerobic training if you like)
• Day 7: The cycle repeats

* Abs and calf muscles can be trained every two days.

This is only an example — you’re free to combine muscles according to your own needs and preferences.

FAQ: sets and reps

How many sets should you do if your goal is muscle mass?

For larger muscle groups, 10–12 sets are a good fit; for smaller ones (biceps, triceps), 6–9 sets per workout.

Does more sets always mean a better result?

No. With more sets, intensity often drops. Fewer sets with a heavier weight and better focus often produce better results than a large number of mediocre sets.

How many times a week should you train the same muscle?

With intensive training, it’s enough to train each muscle once every 5–7 days. The exact frequency depends on your personal recovery speed.

Translated by Janar Rückenberg

Come and train! ArtGym