A deload week is a period of about a week when you train as usual but clearly lighter: fewer sets, slightly lighter weights and every set further from failure. According to a survey, competitive strength and physique athletes deload on average every 5.6 weeks for about a week. Research shows a one-week deload doesn't cost you muscle growth, but it isn't mandatory either: the need shows up in your training, not in the calendar.
What a deload week is
A deload week is not a rest week. You go to the gym as many times as usual and do the same exercises, but with less load. The idea is to give your joints, tendons and nervous system time to recover from accumulated fatigue while keeping your technique and rhythm going.
In endurance sports and powerlifting you'll also hear about tapering, the reduction before a competition. That is a different thing: the goal is peak shape on a specific day, whereas a deload is part of normal training.
What the research says
There is little direct research on deload weeks, but what exists is fairly clear:
- In a randomised study by Coleman et al. (2024), experienced lifters took a week off in the middle of a nine-week program. Quadriceps growth was the same as in those who trained continuously, but lower-body strength improved slightly more in the continuous group.
- In a study by Ogasawara et al. (2013), people who took three-week breaks between six-week training blocks gained the same muscle and strength over six months as those who trained continuously.
- In a meta-analysis by Bosquet et al. (2007), the best pre-competition taper lasted two weeks, with training volume cut by 41-60% while intensity and frequency were kept.
- In a survey by Bell et al. (2024), 246 competitive strength and physique athletes deloaded on average every 5.6 weeks for 6.4 days. They reduced volume, lightened the weights and kept sets further from failure, but kept training frequency and exercises unchanged. They also deloaded when progress stalled or joints started to ache.
Bottom line: a one-week deload costs you next to nothing in muscle, and skipping it isn't dangerous either. That's why its timing is best decided based on your training.
When you need a deload week
A good rule of thumb is to plan a deload every 4-8 weeks and take it earlier if you see signs of accumulated fatigue:
- The same weights feel heavier than a week ago, meaning your rating of perceived exertion (RPE) rises without the weights going up.
- Progress has stalled for two weeks or more, even though sleep and food are in order.
- Joints or tendons start to ache, and warming up takes longer than usual.
- Motivation is gone and going to the gym feels like work.
Beginners usually don't need to deload in the first months, because the weights are still light and recovery is quick. The heavier the weights and the higher the set counts, the more you gain from a deload.
Three ways to deload
You can deload in three ways. The most common is to cut sets and keep the weights nearly the same, because that keeps the feel of the lifts.
Three ways to deload, using a 4 × 8 squat at 100 kg as the example
| Method | What you change | Example | Best for |
|---|---|---|---|
| Sets | About half the sets, weights nearly the same | 2 × 8, 95 kg | Most people, keeps the feel |
| Weights | Weights 10-20% lighter, sets unchanged | 4 × 8, 80-90 kg | When joints ache |
| Both | Fewer sets and lighter weights | 2-3 × 8, 85 kg | When fatigue is high |
There is no need to cut training days. The athletes in the survey kept their training rhythm too, and familiar days make it easier to return to normal the following week.
The most common mistakes
- The deload becomes a rest week. A week with no training isn't dangerous, but then it's a break, and you should return following the advice for breaks.
- The deload is too small. If you only drop one set and keep the same weights, fatigue doesn't have time to clear.
- Testing maxes during the deload week. Attempt a personal record in the week after the deload.
- Deloading only because of the calendar, even though training is going well. You don't have to deload exactly every four weeks.
Back to the gym after a break: how to return
A break is not the same as a deload, but the same principle applies to coming back: start lighter and build back to normal over a week. A break of a week or two doesn't take your muscle. In the Ogasawara study, even three-week breaks over six months were as good as continuous training once training resumed.
Rules of thumb for returning: after a break of less than a week you can continue almost directly, after one to two weeks lighten the weights by about 10% and the sets by about a fifth, and after more than a month start about 20% lighter with fewer sets. Build back to normal over about a week based on how the sets feel. After illness always return more carefully, and never train with a fever or chest pain.
How SisuLift handles deload weeks
In SisuLift you don't have to remember to deload. Your program runs in blocks: base training for 3-4 weeks, an intensification block of about 3 weeks and then a recovery week if your recovery calls for it. In the recovery week you do half the sets, the weights are about 15% lighter and the target effort is RPE 6-7. If training is going well and your recovery looks good, a new block can start right away without a recovery week. Beginners get a six-week block without an intensification block.
You can also skip the recovery week if you feel good and start a new block right away. When you mark yourself on a break because of illness or a holiday, the app lightens your return workouts based on how long the break was (from breaks of at least five days): for example, after a two-week break the weights are 10% and the sets 20% lighter on the first day, and they climb back to normal over a week.
Sources
- 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.
- Ogasawara R et al. (2013). Comparison of muscle hypertrophy following 6-month of continuous and periodic strength training. European Journal of Applied Physiology.
- Bosquet L et al. (2007). Effects of Tapering on Performance: A Meta-Analysis. Medicine & Science in Sports & Exercise 39(8).
- Bell L et al. (2024). Deloading Practices in Strength and Physique Sports: A Cross-sectional Survey. Sports Medicine - Open.
- 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. Frontiers in Sports and Active Living.
→ Read also: Running and strength training in the same week | Progressive overload