How long to rest between sets

For years the gym rule of thumb was to keep rest short, thirty to sixty seconds, to chase the burn. The evidence now points the other way, at least for most lifts most of the time.

What the research actually shows

A 2016 study on trained men compared one minute of rest against three minutes across eight weeks of the same program. The result: longer rest periods enhance muscle strength and hypertrophy in resistance-trained men. That's not what most people expect. Shorter rest feels harder in the moment, but it usually means you lift less weight or fewer reps on your next set, and that adds up over weeks.

A larger 2024 review pooling many studies backs this up in a more modest way. It found a small hypertrophic benefit to employing inter-set rest interval durations >60 s, though the gains levelled off after that. In plain terms: resting under a minute seems to cost you a bit of muscle growth over time, but there's no clear extra benefit to resting five minutes over two.

Why does this happen? there is an inverse relationship between rest interval duration and the magnitude of load lifted in subsequent sets, whereby shorter rest periods necessitate larger reductions in load to complete a given number of repetitions. Cut your rest too short and your third set of squats might drop from eight reps to four, at a lighter weight than you planned. Over a training block, that's less total work done, and less total work is one of the main drivers of muscle growth.

So how long should you actually rest

There's no single number that fits every exercise, but a few patterns hold up well across the research.

1. 1

   Heavy compound lifts For squats, deadlifts, bench and rows, rest two to three minutes so you can hit your target reps at the planned weight on every set.

2. 2

   Smaller isolation moves For curls, lateral raises or calf raises, sixty to ninety seconds is usually enough since the muscles involved recover faster and the stakes of a slightly lighter set are lower.

3. 3

   When reps start dropping If your last set is falling well short of the first, that's a sign to rest a bit longer next time, not to push through.

4. 4

   When you're short on time Short rest is fine occasionally, just expect the same weight to feel a little heavier and don't be surprised if your progression stalls that week.

The point of resting isn't to be lazy between sets. It's to arrive at the next set able to do the work you came for.

Rest is part of the prescription, not an afterthought

It helps to think of rest the same way you think of weight or reps: as something you set on purpose for each exercise, not something you improvise depending on how you feel or how busy the gym is. A big barbell lift and a set of bicep curls don't need the same recovery window, and treating them the same is where a lot of people lose reps without noticing.

None of this is about chasing the longest possible rest either. The 2024 review found that stretching rest well past two minutes didn't produce extra muscle growth, it just took more time in the gym for the same result. The goal is enough rest to do your planned reps at your planned weight, not the maximum rest you could take.

If a joint or muscle is genuinely painful between sets rather than just tired, that's worth mentioning to a physiotherapist or doctor rather than solving with more rest.