How long to rest for your goal
Rest between sets lets the muscle recover the energy it used so you can do the next set with the same weight and close to the same reps. How much you need depends on what you are after and how heavy you train. The ACSM, in its position stand on progressing in strength training, gives these ranges (American College of Sports Medicine, 2009):
| Goal | Rest | Weight |
|---|---|---|
| Build muscle | 1 to 2 minutes | Weights you can lift 6 to 12 times |
| Maximal strength | 3 to 5 minutes | Heavy weights, 1 to 6 reps |
| Muscular endurance | Under 90 seconds | Light weights, more than 15 reps |
These ranges are a starting point, not an exact rule. The more recent studies below mostly refine the one for building muscle.
How long to rest to build muscle
For years the advice was to rest briefly, 30 to 60 seconds, to grow. Long-term studies do not back that up. A meta-analysis of 9 trials that changed only the rest period found a small advantage for rest periods over 60 seconds, and no noticeable difference beyond 90 seconds (Singer et al., 2024). It made no difference whether the sets went to failure or not.
In a trial with 21 men who already lifted, one group rested 1 minute and another 3 minutes for 8 weeks, doing 3 sets of 8 to 12 reps on 7 exercises. The 3-minute group gained more strength on the barbell back squat and barbell bench press, and more muscle thickness in the thigh (Schoenfeld et al., 2016).
The most likely explanation is volume. With little rest you start the next set tired and do fewer reps with the same weight, so you move less total weight (Singer et al., 2024). That is why short rest does not stop you from growing: a review concluded that both short and long rest periods can work, with a possible edge for long ones in trained people (Grgic et al., 2017).
How long to rest to build strength
When the goal is to lift as much as possible, rest matters more. A systematic review of 23 studies with 491 people found that strength improves even with rest periods under 60 seconds, but that trained lifters need more than 2 minutes to get the most out of it. For beginners, 60 to 120 seconds is enough (Grgic et al., 2018).
For very heavy sets of 1 to 6 reps, the ACSM recommends 3 to 5 minutes (American College of Sports Medicine, 2009). If you do not know which weight fits each range, the one-rep max calculator estimates your max and your working weights. The strength routines already include the rest periods.
How to rest less without losing results
Rest is what stretches a workout the most. The trial above had 21 sets per day (3 sets of 7 exercises), or about 20 rest periods. At 1 minute that is 20 minutes of rest; at 3 minutes, 60. If you do not have that extra hour, there are options with evidence behind them:
- Rest less and add sets. In a 10-week trial on the leg extension, resting 1 minute gave half the growth of resting 3. But when the 1-minute group did extra sets to match the total weight lifted, it grew the same: 12.9% versus 13.1% (Longo et al., 2022).
- Use supersets. Do two exercises back to back and rest after both. A meta-analysis of 19 studies found that they shorten the workout with muscle and strength gains similar to traditional sets (Zhang et al., 2025).
- Pair opposing muscles. Supersets of muscles that do opposite movements, like a press and a row, hold your reps better. Pairing two exercises for the same muscle lowers the total weight you lift (Zhang et al., 2025).
How to keep track of your rest at the gym
- Use a timer. Without a clock, rest gets longer or shorter depending on how you feel or what you are looking at on your phone. Timing it makes each workout comparable to the last one.
- Pick the rest for each exercise. Use the top of the range on heavy multi-joint lifts like the squat or the press, and the bottom on isolation exercises, which tire the whole body less.
- Watch your reps. If, with the same weight, your second set comes out with far fewer reps than the first, the rest was too short. Lengthen it next workout.
Rest is only one part of the workout. To know how many sets and reps to do, see the guide on sets and reps for muscle growth.
Common mistakes
- Resting less to make it harder. Finishing out of breath feels intense, but if it makes you do fewer reps, the muscle gets less work. What drives growth is volume, not the feeling.
- Using the same rest for everything. A heavy set of squats needs more time than a set of biceps curls. Match the rest to the exercise and the weight.
- Changing your rest every workout. If you rest 1 minute one day and 4 the next, you cannot tell whether you got better or just rested longer. Keeping it steady lets you see your progress.
Questions
How long should you rest between sets for hypertrophy?
1 to 2 minutes (American College of Sports Medicine, 2009). Resting more than 60 seconds gives a small advantage, and going past 90 seconds adds almost nothing (Singer et al., 2024).
Is it bad to rest too little between sets?
It does not stop you from building muscle, but with the same number of sets it tends to give a bit less because you do fewer reps. If you rest 1 minute, make up for it with extra sets (Longo et al., 2022).
Is resting more than 3 minutes worth it?
For maximal strength with very heavy weights, yes: the ACSM recommends 3 to 5 minutes (American College of Sports Medicine, 2009). For building muscle, no noticeable difference was seen when resting longer than 90 seconds (Singer et al., 2024).
How long should I rest if I train with light weights and high reps?
For muscular endurance, with more than 15 reps per set, the ACSM recommends resting less than 90 seconds (American College of Sports Medicine, 2009).
Sources
- Singer A, Wolf M, Generoso L, et al. Give it a rest: a systematic review with Bayesian meta-analysis on the effect of inter-set rest interval duration on muscle hypertrophy. Front Sports Act Living. 2024;6:1429789. doi:10.3389/fspor.2024.1429789
- Grgic J, Lazinica B, Mikulic P, Krieger JW, Schoenfeld BJ. The effects of short versus long inter-set rest intervals in resistance training on measures of muscle hypertrophy: a systematic review. Eur J Sport Sci. 2017;17(8):983-993. doi:10.1080/17461391.2017.1340524
- Schoenfeld BJ, Pope ZK, Benik FM, et al. Longer interset rest periods enhance muscle strength and hypertrophy in resistance-trained men. J Strength Cond Res. 2016;30(7):1805-1812. doi:10.1519/JSC.0000000000001272
- Longo AR, Silva-Batista C, Pedroso K, et al. Volume load rather than resting interval influences muscle hypertrophy during high-intensity resistance training. J Strength Cond Res. 2022;36(6):1554-1559. doi:10.1519/JSC.0000000000003668
- Grgic J, Schoenfeld BJ, Skrepnik M, Davies TB, Mikulic P. Effects of rest interval duration in resistance training on measures of muscular strength: a systematic review. Sports Med. 2018;48(1):137-151. doi:10.1007/s40279-017-0788-x
- American College of Sports Medicine. American College of Sports Medicine position stand. Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2009;41(3):687-708. doi:10.1249/MSS.0b013e3181915670
- Zhang X, Weakley J, Li H, Li Z, García-Ramos A. Superset versus traditional resistance training prescriptions: a systematic review and meta-analysis exploring acute and chronic effects on mechanical, metabolic, and perceptual variables. Sports Med. 2025;55(4):953-975. doi:10.1007/s40279-025-02176-8
This guide is for information only and does not replace advice from a health professional.
