We recommend 3 sets for beginners and toning objectives, and 4 sets for intermediate and advanced practitioners aiming at mass capture or strength enhancement. This question of the number of series often divides athletes, and rightly so: choice directly influences your results and your progress.
After several years of accompaniment on Madamsport.fr, we observe that the answer depends on several essential factors:
- Your level of experience in strength training
- Your specific objectives (tonification, mass grab, force)
- Your ability to recover
- Time available for your sessions
In this article, we guide you to make the best choice according to your profile and maximize your progress in strength building.
Should we do 3 or 4 sets in strength training?
The difference between 3 and 4 series lies mainly in the total training volume. An additional series represents about 25% more work, which significantly alters the muscle stimulus.
The 3 series are an excellent compromise for starting and maintaining steady progress. They allow you to learn the movements correctly while generating sufficient muscle stress to achieve visible results. We note that our beginner clients progress perfectly with this format during their first 12 to 18 months.
The 4 series become relevant when you master the technique perfectly and your body adapts to the loads. This additional series creates greater metabolic stress, promoting muscle hypertrophy and strength gains.
The choice also depends on the type of exercise: compound movements such as the squat or the lying developed benefit more than 4 series, while the insulation exercises work very well with 3 series.
What results will be expected with 3 series?
With 3 well run series, you will get significant results, especially during your first months of training. This format allows an improvement of 15 to 25% of your initial strength over the first 6 months, according to our experience with beginners.
Muscle toning becomes visible after 4 to 6 weeks of regular training. Your muscles gain in definition without necessarily taking a lot of volume. This approach is perfect if you want to sculpt your silhouette without developing an imposing musculature.
Muscle endurance improves considerably with 3 sets of 15 to 20 repetitions. You will quickly find a better resistance to fatigue in your daily activities: carrying the races, climbing the stairs, playing with the children.
Recovery remains manageable with this training volume. You can maintain a rate of 3 to 4 sessions a week without risking overtraining, which promotes regularity over the long term.
Why move on to four sets?
The switch to 4 series becomes necessary when your progression stagnates with 3 series. This usually happens after 12 to 18 months of regular training, when your body adapts to the current stimulus.
The increase in training volume of 25% stimulates your muscle fibers differently. This additional series recruits drive units that did not fully participate with only 3 series, creating a new growth stimulus.
For muscle mass gain, 4 series optimize time under stress and metabolic stress. Studies show that a higher volume (to some extent) correlates positively with hypertrophy, particularly among experienced female practitioners.
The maximum force also benefits from this additional volume. By working 4 sets at 85-90% of your 1RM, you are more demanding your nervous system and improving your intramuscular coordination.
3 or 4 series depending on your level (start to advanced)
Starting level (0-12 months) We systematically recommend 3 series to learn the movements correctly. Your priority should be technology rather than intensity. A 2.5 kg increase every 2 weeks on basic exercises remains realistic with this format.
Intermediate level (1 to 3 years) You can alternate according to the exercises: 4 series on main compound movements (squat, developed lying, ringing) and 3 series on insulation exercises. This approach allows you to gradually increase your volume without overloading your recovery capacity.
Advanced (more than 3 years) 4 series are often needed to continue to progress. Your experience allows you to manage this volume while maintaining an impeccable technique. You can even consider intensification techniques on the latest series.
The adaptation must be done gradually: add a 4th series to one exercise per session, then generalize according to your feelings and results.
Influence of available time on series selection
The time factor directly influences your choice. A session with 3 sets usually lasts 45 to 60 minutes, including heating and stretching. With 4 sets, count 60 to 75 minutes for the same program.
If you have limited slots (30-45 minutes), choose 3 sets with optimized rest times. Reduce breaks to 60-90 seconds between isolation series and 2-3 minutes for compound exercises.
To maximize efficiency with little time, we recommend supersets: chain two different exercises without pause. For example, developed lying followed by d This method allows to maintain 4 series by reducing the total duration.
The training frequency can compensate for a reduced volume per session. Better 3 series out of 4 weekly sessions than 4 series out of 2 sessions only.
What impact on muscle uptake and recovery?
Impact on hypertrophy 4 series generate superior hypertrophic stimuli through accumulation of metabolites (lactate, creatine phosphate) and prolonged mechanical stress. Time under total stress increases by 25%, which is a determining factor for muscle growth.
Protein synthesis remains elevated longer after a session with 4 series. This extended anabolic window promotes the reconstruction and growth of muscle fibers, especially if your diet provides enough protein (1.6 to 2.2 g/kg body weight).
Impact on recovery 4 series require 24 to 48 additional hours of full recovery. Your muscle glycogen reserves are emptying more, and tissue micro-tissues are more important.
Sleep quality becomes paramount with a high volume. We observe that our clients who move to 4 sets often have to adapt their hygiene: 7-8 hours of sleep, stress management, balanced diet.
Examples of programmes with 3 and 4 series
3 Series Programme – Beginner/Intermediate
| Year | Series | Repetitions | Rest |
| Squat | 3 | 12-15 | 2 min |
| Developed lying | 3 | 10-12 | 2 min |
| Rowing bar | 3 | 10-12 | 2 min |
| Side elevations | 3 | 15-20 | 1 min |
| Curl biceps | 3 | 12-15 | 1 min |
Programme 4 series – Intermediate/Advanced
| Year | Series | Repetitions | Rest |
| Squat | 4 | 8-10 | 3 min |
| Developed lying | 4 | 8-10 | 3 min |
| Rowing bar | 4 | 8-10 | 2-3 minutes |
| Side elevations | 3 | 12-15 | 1 min |
| Curl biceps | 3 | 10-12 | 1 min |
Note that we keep 3 sets on insulation exercises even in the advanced program, as they require less volume to be effective.
How to adjust its number of series over time?
The adjustment must follow a logical progression based on your sensations and your results. Start by adding a 4th series on a single exercise composed per session, usually the one you master best.
Observe your recovery for 2-3 weeks: excessive fatigue, decreased motivation, stagnation of performance are alarm signals. If all goes well, gradually extend to other exercises.
Periodization remains the most effective approach: alternate 4-6 week phases with 3 series (active recovery phase) and 4 series (intensification phase). This variation avoids adaptation and maintains progression.
Reduce temporarily to 3 series during stressful periods (work overload, personal problems) or excessive fatigue. Your body tells you its needs if you listen carefully.
What scientific studies say
Recent research confirms the importance of training volume for hypertrophy. A 2017 meta-analysis shows that beyond 10 sets per muscle group per week, the gains become marginal for most practitioners.
A 2019 study compares 3 vs. 5 series in trained women: the "5 series" group gets 12% extra hypertrophy on quadriceps, but no difference on the upper body. These results suggest that the optimum varies among muscle groups.
Schoenfeld's research (2020) shows that 4 sets per exercise often represent the optimal threshold to maximize hypertrophy without compromising recovery in intermediate and advanced practitioners.
Force studies show that 3 series are sufficient for neural gains in beginners, while 4-5 series become necessary for long-term adaptations in experienced practitioners.
Conclusion: the best strategy according to your objectives
Our final recommendation adapts to your personal profile. If you're getting started in weight training, choose 3 sets during your first 12 months to acquire a solid technique and develop the practice of training. This approach generates excellent results while preserving your motivation.
For intermediate and advanced practitioners, 4 series on main compound exercises optimize the progression in strength and muscle mass. Keep 3 series on insulation movements to balance the total volume.
Adapt your choice according to your constraints: lack of time, difficult recovery, or toning objectives orientate to 3 sets. On the other hand, progress tray, mass capture target, or advanced level justify the switch to 4 series.
Remember that regularity takes precedence over intensity: it is better to maintain 3 series over the long term than to give up after a few too intense sessions with 4 series. Your progression depends primarily on your consistency and body listening.
