What is a deload week, and when do you need one?

A deload week is a planned week of easier training, with fewer sets, lighter weights and sets that end well short of failure, so the fatigue of a hard block can clear before the next one. Lifters and coaches who use them deload about every 4–6 weeks for 5–7 days, cut their sets by roughly a third to a half and keep training on the same days. In the few trials so far, a short break didn’t slow muscle growth, and none found that it sped growth up. Plan one at the end of each block, and take it early when your lifts stall and your joints ache.

What a deload is for

A panel of strength and physique coaches, polled over three rounds, agreed on a definition: a period of reduced training stress meant to lower physical and mental fatigue, help recovery and leave you ready for the next block (Bell et al. 2023). A taper also cuts training, but it comes before a competition so you peak on the day. A deload can sit anywhere in a program.

Two ideas lie behind it.

Letting fatigue clear

Weeks of hard sets leave you sore, achy and a little slower, and a lighter week lets that settle. It is the reason 92 % of 246 surveyed strength and physique athletes gave for deloading (Rogerson et al. 2024). The same authors point out that the evidence for fatigue piling up week after week in lifting is thin, and that part of what lifters call fatigue may be muscle damage from hard training.

“Re-sensitizing” muscle

The second idea is that growth slows as muscle gets used to training, and a break makes it respond more when you come back. Untrained men who took 3 weeks off every 6 grew faster after their second break than men who trained straight through did over the same weeks, and both groups ended up the same (Ogasawara et al. 2013). When the idea was tested in trained lifters, a week off brought no extra growth (Coleman M et al. 2024).

What the research shows

Few trials have tested deloads directly. Most compare training straight through with taking a break:

Study	Who	The break	What happened
Ogasawara et al. 2011	15 untrained men, bench press	3 weeks off after 6, in 15 weeks	Same chest and triceps growth and 1RM as training straight through
Ogasawara et al. 2013	14 untrained men, bench press	3 weeks off after every 6, over 24 weeks	Same growth and strength at 24 weeks
Hwang et al. 2017	20 trained men	2 weeks off between two 4-week blocks	Leg press strength held (no group trained straight through)
Vann et al. 2021	30 trained men, after 6 weeks of rising volume	1 week at about 15 % of the volume, or 1 week off	Much the same either way (no group trained straight through)
Coleman M et al. 2024	39 trained men and women	1 week off in the middle of 9 weeks	Same leg muscle growth. Squat 1RM about 4.5 kg (10 lb) lower, an uncertain difference
Halonen et al. 2024	42 untrained adults	10 weeks off between two 10-week blocks	Same end result as 20 weeks straight. Lost size and strength came back fast
Pancar et al. 2026	19 untrained men, one arm and leg each way	Weeks 4 and 8 cut to 1 session and 2 sets	Same muscle thickness and 10RM

Three things stand out. A break of a week or more doesn’t seem to cost muscle in the long run. None of these trials found that a break or a lighter week built extra muscle. And in the one trial that compared a week off with training straight through in trained lifters, the week off cost a little strength, and the authors noted that many lifters came back feeling sluggish and out of practice (Coleman M et al. 2024).

What nobody has tested yet is the deload most lifters use, a lighter week of training, against training straight through, in trained lifters, over more than one block.

How often should you deload?

No trial has compared deload schedules, so the numbers come from what people do. In the survey of 246 athletes, the typical deload came every 5.6 weeks (give or take 2.3) and lasted 6.4 days (Rogerson et al. 2024). Most of them were powerlifters, so bodybuilders may differ. Interviews with 18 national-level coaches gave every 4–6 weeks for 5–7 days, with a lot of variation between athletes (Bell et al. 2022).

Nearly half the athletes planned their deloads ahead, 13 % only took one when they felt they needed it, and the rest did both. Two in three also said they thought they could progress without deloads at all.

Our reading, which no study has tested: plan a deload after every 4–6 hard weeks, lean toward the short end when your blocks have many sets close to failure, and move it earlier when the signs below show up.

How to deload

Here is what athletes and coaches reported changing (Rogerson et al. 2024; Bell et al. 2022):

What changes	What lifters and coaches do
Sets	79 % of athletes cut them. Coaches cut volume by about 30–50 %
Reps per set	About half the athletes cut them, a third kept them
Weight	84 % went lighter on compound lifts. Coaches dropped it by about 10 %
Effort	85 % stopped further from failure on compound lifts
Training days	63 % kept the same number
Exercises	Most kept them. Coaches agreed familiar exercises avoid fresh soreness (Bell et al. 2023)

How much can you cut before you lose muscle? Far more than a deload does. In young adults who had trained for 16 weeks, one session a week at a ninth of their earlier dose kept their muscle for 32 weeks (Bickel et al. 2011). A review of maintenance studies found that, in younger people, one session and one set per exercise a week held strength and size for months, as long as the weight stayed heavy (Spiering et al. 2021).

Our reading, for a muscle-building block: halve your sets, keep the same exercises and days, use the same weight or about 10 % less, and stop every set with 3 or more reps left. If your squat was 4 sets of 8 at 225 lb (102 kg) with 1–2 reps in reserve, a deload could be 2 sets of 8 at 205 lb (93 kg) with about 4 left. The sets should feel easy.

That week, your sets will drop well below the 10 or so a muscle usually needs to grow (see how many sets per muscle per week). For one week that’s fine: the trials above found no growth lost even to a full week off.

Signs you need one sooner

The athletes in the survey deloaded when their program said so (65 %), when they felt beaten up with sore muscles, aching joints or pain (63 %), when their performance stalled or dropped (54 %), when old injuries acted up (31 %) and when stress outside the gym was high (31 %) (Rogerson et al. 2024). The coaches’ panel agreed that a deload can come whenever an athlete is worn down, whatever the week of the block (Bell et al. 2023).

Our reading turns that into signs you can check:

• Your reps at the same weight fall two sessions in a row
• A muscle is still sore when it’s time to train it again
• Your joints or an old injury ache through the warm-up sets
• You dread sessions you used to look forward to
• Work, travel or a new baby is cutting into your sleep

One bad day doesn’t count. Two or three of these together, for a week or more, are a reason to deload early. Check sleep, food and stress as well, since a lighter week won’t make up for short nights or too little food. For what to do when the weight stops moving, see progressive overload, week by week.

Do beginners need one, and is a week off as good?

Most trials of breaks were in beginners, and the breaks didn’t hurt them. Three weeks off every six (Ogasawara et al. 2013) or ten weeks off in the middle (Halonen et al. 2024) left them where continuous trainees ended up, and lighter weeks didn’t slow them (Pancar et al. 2026). Beginners lift lighter loads for fewer sets and usually recover between sessions. Our reading: in your first months you can skip a fixed schedule and take a lighter week when the signs above appear or life gets in the way.

A full week off is fine for muscle. In trained lifters it cost a little strength and left them rusty (Coleman M et al. 2024). Two weeks off didn’t cost trained men their leg press strength (Hwang et al. 2017). After a hard block, one week at about 15 % of the volume and one week off gave much the same results (Vann et al. 2021).

Our reading: when you can train, take the lighter week. It keeps the movements familiar and the habit going. When a vacation or an illness takes the week, take it off, and expect your first session back to feel heavy.

How Workout Wizard does it

Workout Wizard plans your training in blocks of a few weeks, and the last week of every block is a deload. You train the same days and exercises with fewer sets, lighter weights and easy effort, and each set comes with a suggested weight and reps based on what you lifted in the weeks before. The app labels it “Deload” instead of a week number, and the weekly sets recap skips it, since fewer sets are the plan that week. When the block ends, you can start the next one from the block you finished.

None of the studies above tested this exact scheme. It is one structured way to do what most lifters and coaches already do: hard weeks first, then an easier one.

When should you take your next deload?

After 4–6 weeks of hard training, or sooner when your reps stall and your joints ache, take a week with about half the sets, the same or slightly lighter weights and every set well short of failure. Keep the same days and exercises, then start your next block.

References

• Bell L et al. 2022. “You can’t shoot another bullet until you’ve reloaded the gun”: coaches’ perceptions, practices and experiences of deloading in strength and physique sports. Front Sports Act Living 4:1073223. doi:10.3389/fspor.2022.1073223. PMID 36619355.
• Bell L et al. 2023. Integrating deloading into strength and physique sports training programmes: an international Delphi consensus approach. Sports Med Open 9:87. doi:10.1186/s40798-023-00633-0. PMID 37730925.
• Bickel CS, Cross JM, Bamman MM. 2011. Exercise dosing to retain resistance training adaptations in young and older adults. Med Sci Sports Exerc 43(7):1177–1187. doi:10.1249/MSS.0b013e318207c15d. PMID 21131862.
• Coleman M et al. 2024. Gaining more from doing less? The effects of a one-week deload period during supervised resistance training on muscular adaptations. PeerJ 12:e16777. doi:10.7717/peerj.16777. PMID 38274324.
• Halonen EJ et al. 2024. Does taking a break matter: adaptations in muscle strength and size between continuous and periodic resistance training. Scand J Med Sci Sports 34(10):e14739. doi:10.1111/sms.14739. PMID 39364857.
• Hwang PS et al. 2017. Resistance training-induced elevations in muscular strength in trained men are maintained after 2 weeks of detraining and not differentially affected by whey protein supplementation. J Strength Cond Res 31(4):869–881. doi:10.1519/JSC.0000000000001807. PMID 28328712.
• Ogasawara R et al. 2011. Effects of periodic and continued resistance training on muscle CSA and strength in previously untrained men. Clin Physiol Funct Imaging 31(5):399–404. doi:10.1111/j.1475-097X.2011.01031.x. PMID 21771261.
• Ogasawara R et al. 2013. Comparison of muscle hypertrophy following 6-month of continuous and periodic strength training. Eur J Appl Physiol 113(4):975–985. doi:10.1007/s00421-012-2511-9. PMID 23053130.
• Pancar Z et al. 2026. Effects of deload periods in resistance training on muscle hypertrophy and strength endurance in untrained young men using a randomized within subject design. Sci Rep 16:10299. doi:10.1038/s41598-026-40612-5. PMID 41730991.
• Rogerson D et al. 2024. Deloading practices in strength and physique sports: a cross-sectional survey. Sports Med Open 10:26. doi:10.1186/s40798-024-00691-y. PMID 38499934.
• Spiering BA et al. 2021. Maintaining physical performance: the minimal dose of exercise needed to preserve endurance and strength over time. J Strength Cond Res 35(5):1449–1458. doi:10.1519/JSC.0000000000003964. PMID 33629972.
• Vann CG et al. 2021. Molecular differences in skeletal muscle after 1 week of active vs. passive recovery from high-volume resistance training. J Strength Cond Res 35(8):2102–2113. doi:10.1519/JSC.0000000000004071. PMID 34138821.