How long should you rest between sets if you want to get stronger?

You’re mid-session. The set was hard. Your phone says “rest 45 seconds.” Another tip said “wait three minutes.”

Both can sound confident. They are not answering the same question.

If your goal is getting stronger on the lifts that matter to you, rest between sets is not filler. It is part of the work — the quiet part that decides whether the next set is still a strength set or just another hurried effort.

Busy schedules make short rests feel efficient. Efficiency is useful. It is not the same thing as maximizing strength.

What the research actually looked at

A systematic review of rest-interval duration and muscular strength (Grgic et al., Sports Medicine, 2018; PubMed PMID 28933024) pooled 23 studies with 491 participants, most of them men. It asked how different rest lengths between sets affect chronic strength adaptations — changes over a training block — not how a single workout feels or how sore you are the next day.

What that review supports, carefully:

1. Robust strength gains are possible even with short rests (under about 60 seconds). Short rest is not wasted training.
2. To maximize strength in resistance-trained people, longer rests (over about 2 minutes) appear needed.
3. For untrained people, short-to-moderate rests (about 60–120 seconds) often look sufficient for maximizing strength gains in that literature.

That is a strength finding. It is not a hypertrophy prescription, a fat-loss rule, or a women-only optimization study. The samples were male-heavy, so treat the “longer rest for trained lifters” line as a useful coaching pattern from the evidence we have — not a guarantee for every body, every lift, or every program.

If someone online promises that one exact rest time builds more muscle for everyone, they are already past what this review supports.

Why the clock feels confusing in real life

Conflicting tips often collapse three different goals into one number:

• Strength on a main lift — you usually want the next hard set to still be high quality.
• Getting a lot of work done in a short lunch break — shorter rests can help you finish the session.
• Feeling breathless / “worked” — short rests raise how hard the session feels without automatically maximizing strength.

You can want any of those. You just should not pretend they are identical.

Canadian movement guidelines also ask adults for muscle-strengthening work using major muscle groups at least twice a week, alongside aerobic activity (CSEP adults 18–64). That is about how often you train across the week. It does not dictate a universal rest timer inside each session.

A practical way to use this on your next session

1. Name the goal for the main lift.

If today’s priority is strength on a squat, hinge, press, or pull pattern, protect the quality of each hard set. Rushing the clock can leave you under-recovered for the set that was supposed to matter.

2. Give main sets a full quiet rest.

For trained lifters chasing strength, that often means more than two minutes before the next hard set of the same lift — closer to a real pause than a hurried scroll. You do not need a stopwatch obsession. You need enough recovery that the next set is still a strength set: controlled reps, clear range of motion, and the posture you meant to practise.

3. Keep assistance work simpler.

Secondary moves can often use shorter rests if the load and fatigue still allow clean reps. The review’s main lesson is about maximizing strength, not making every cable exercise a three-minute ceremony.

4. Match rest to the week you can repeat.

A long-rest strength template that blows up your schedule is not better than a plan you will still be doing in four weeks. A coach can help fit the advice into a real calendar — travel, late meetings, and hotel gyms included.

5. Do not confuse “I feel busy” with “I got stronger.”

A packed session with tiny rests can feel productive. Strength still depends on repeating high-quality efforts over weeks. Form, range of motion, and posture under load are the practice. Rest is one of the tools that protects that practice.

What this is not saying

• It is not saying short rests never build strength. The review found gains with short rests too.
• It is not saying everyone must rest three minutes on every exercise.
• It is not medical advice, or a promise that longer rests will change how you look.
• Master the movement. Choose a rest that lets the next hard set stay hard and clean.

Where coaching helps

Rest length is one variable. So are the movement itself, the range you can control, your posture under load, and a plan you can repeat.

That is the TurnFit approach: resistance training coached so you know what you are practising and why the rest exists — not a random timer copied from someone else’s program.

Online personal training is often a strong fit when you want a plan plus coach feedback around your week. Corporate wellness is a separate path for teams. In-person coaching in Kitsilano or Downtown Vancouver is available when you want live sessions.

If you want help matching rest, load, and a week you can actually keep:

Book a free 5-minute fit call

References

1. Grgic J, et al. Effects of Rest Interval Duration in Resistance Training on Measures of Muscular Strength: A Systematic Review. Sports Medicine. 2018. PubMed PMID 28933024.
2. Canadian Society for Exercise Physiology. Canadian 24-Hour Movement Guidelines — Adults 18–64. csepguidelines.ca.