How long do muscles need to recover between workouts?
By Mert Yerekapan · Updated
A good rule is 48 hours between hard sessions for the same muscle group. After a very heavy or very high-volume session, give it closer to 72. Smaller muscles like biceps, calves and shoulders often recover faster, sometimes in a day or two.
That's why most plans hit each muscle two or three times a week with a day or two in between. It's not that the muscle is "done growing" after a day. It just isn't ready to be hit as hard again.
What recovery looks like in practice
You can train different muscles on back-to-back days without any problem. Legs on Monday, upper body on Tuesday is fine, because the legs are resting while the upper body works. The 48 hours applies to the same muscle, not to you as a whole.
Things that stretch the timeline:
- A new exercise or a big jump in weight or sets
- Lots of eccentric work, like slow lowering or deep lunges
- Poor sleep or a stressful week
- Training close to failure on every set
Things that shorten it: experience with the movement, moderate volume and enough sleep and food.
How to tell you're ready
Soreness is a rough guide, not a rule. A better test is performance. If you walk in and your first sets feel normal, with the weights moving about as well as last time, the muscle has recovered. If the same weight feels much heavier than it should, take another day or swap to a different body part.
Pain in a joint or a sharp pain in a muscle is a different thing from normal soreness. If it doesn't ease up after a few days, or it hurts to do normal things, see a doctor or physical therapist.
A simple way to schedule it
If you train 3 days a week, full body on non-consecutive days gives every muscle about 48 hours. If you train 4 days, an upper and lower split does the same job. Past that, you're mostly adding volume you have to recover from, so it's worth reading about signs of overtraining before you add more.
On the days in between, a walk or an easy ride synced from Apple Health still counts toward your day in League of Fitness, so you can keep the daily habit going without hitting the same muscles again.