3–5 sets of deadlifts per session is enough — what a 2022 RCT on 2 vs 5 sets found

The number: 3–5 working sets per session

3–5 working sets of deadlifts per session is enough to build strength. Not 10. Not 8. Three to five.

A 2020 meta-analysis in Sports Medicine looked at the minimum effective training dose needed to increase 1-rep-max strength on the powerlifts — squat, bench press, and deadlift — in people who already train. The finding: even a single weekly set can move the needle, but the practical sweet spot for trained lifters lands at a low weekly volume that most gym-goers dramatically exceed (Androulakis-Korakakis et al., 2020).

That's not a licence to do 1 set and go home. It means the dose required is much smaller than most programs suggest — and exceeding it doesn't always pay off.

Even trained lifters can increase deadlift 1RM on doses far below what most programs prescribe.

— Androulakis-Korakakis et al. (2020). The Minimum Effective Training Dose Required to Increase 1RM Strength. Sports Med.

What a direct set-count comparison actually showed

A 2022 RCT — people randomly split into two groups and compared — put 20 resistance-trained men through either a high-volume session (5 sets) or a low-volume session (2 sets) of deadlifts, squats, bench press, and shoulder press at 65% of their 1-rep max (Hackett, 2022).

Both groups got stronger. The 5-set group didn't produce significantly more strength gain than the 2-set group in that session-level comparison. What the 5-set group did produce was a 10% drop in breathing muscle strength — maximal inspiratory pressure fell by a median of 10.0% after the high-volume session, versus no significant change after the low-volume session. That impairment cleared within 40 minutes, but it signals real systemic fatigue (Hackett, 2022).

More sets cost more recovery. If the strength gain is similar, that cost matters.

Why the deadlift is different from every other lift

The deadlift is the most systemically demanding lift you can do. It recruits more total muscle mass than any other single movement — back, glutes, hamstrings, traps, forearms, core — all working at once under a heavy load.

That's exactly why powerlifters taper the deadlift first before a competition. A systematic review of powerlifting performance found that lifters cut deadlift volume before squats, and squats before bench press — the reverse of how taxing most people perceive those lifts (Ferland et al., 2019). The deadlift demands the most recovery time.

That recovery cost is a direct argument for keeping sets on the lower end, especially if you're also squatting the same week.

Powerlifters taper the deadlift first — before squat, before bench. The recovery demand is that high.

— Ferland et al. (2019). Classic Powerlifting Performance: A Systematic Review. J Strength Cond Res.

How to know if you're using the right intensity — not just the right set count

Sets only mean something if the weight is right. Too light, and 5 sets does nothing. Too heavy and sloppy, and 3 sets destroys your lower back.

Here's a practical tool: RPE — your rating of perceived exertion, scored on how many reps you feel you had left in the tank. Research on 15 powerlifters found a very strong relationship (r = 0.88–0.91) between RPE and the actual percentage of 1-rep max being lifted on the deadlift, squat, and bench press (Helms et al., 2017). In plain terms: how hard it feels is a reliable signal of how heavy it actually is.

For hypertrophy and strength on the deadlift, target sets that feel like an 7–8 out of 10 effort — leaving 2–3 reps in reserve. That's roughly 75–85% of your 1-rep max. A 2023 RCT used 75–85% of 1RM for 3–4 sets of deadlifts and produced significant strength gains over 29 days (Triki et al., 2023).

If every set feels like a 10, you're not doing 5 sets — you're doing 1 set five times with worse form each round.

The practical prescription: how to structure your deadlift sets

Here's how to apply the numbers in your actual training:

For strength (your main goal is a heavier 1-rep max):
3–5 sets of 2–5 reps at 80–90% of your 1RM. Keep RPE at 8–9. Rest 3+ minutes between sets — how long should you rest between sets goes deep on why shorter rest limits strength output.

For hypertrophy (you want bigger posterior chain and back):
3–4 sets of 6–10 reps at 70–80% of your 1RM. RPE 7–8. This range is well-supported — how many reps for muscle growth covers the rep-range evidence in detail.

For general fitness (you just want to be strong and move well):
2–3 sets of 5–8 reps. That's it. The Androulakis-Korakakis et al. (2020) meta-analysis confirms this dose is above the minimum threshold for strength gains in trained lifters.

And critically: don't deadlift heavy twice a week at first. One heavy session, one lighter or technique-focused session if you're pulling twice. The recovery demand is real (Ferland et al., 2019).

If you're also squatting, treat your deadlift and squat volumes as drawing from the same recovery budget — how many sets per muscle group per week explains how to manage total weekly volume across legs and back.