Coming Back After Three Months Off

A concrete six-week plan for returning after a three-month layoff: how much weight to drop, how many sets to run, and when to see a doctor instead.

After three months off, your body has not forgotten how to train, but it has lost some strength, conditioning and tolerance for workload. The biggest mistake is picking up exactly where you left off — that is the fastest route to an angry tendon and another layoff. Here is a concrete plan for the first six weeks.

What actually happened in three months

The losses are uneven, and that unevenness is what should shape your first month.

Strength fades slowest, usually 5 to 15 percent on the big lifts. If you squatted 120 kg for 5, you are probably around 100 to 110 kg today — but the bar will feel worse than that number suggests.
Muscle mass: almost nothing in the first 10 to 14 days, then realistically 5 to 10 percent of cross-sectional area after three months.
Conditioning drops fastest. VO2max falls 6 to 10 percent within the first three weeks and 15 to 20 percent by three months.
Tendons and ligaments adapt far slower than muscle, on the order of 6 to 12 weeks. That is why your muscle can already move a load your connective tissue cannot yet tolerate.

The good news: regaining is two to three times faster than building it the first time. Six to ten weeks puts you back where you were — as long as you do not skip the first two.

Week zero: find out where you are

Do not test a max. Do one easy session and three simple tests you will repeat in six weeks.

On your main leg and chest movement, find a load you can do for 8 reps with 3 to 4 reps still in the tank. That is your starting working weight.
Walk or jog 10 minutes at a steady pace and write down the distance and your average heart rate.
Push-ups and a plank, both stopped two reps or two seconds short of failure. Write down the numbers.

Weeks 1-2: half of what you think you can do

Three sessions per week, full body, 45 to 55 minutes each.

4 to 5 exercises: one squat pattern, one hip hinge, one press, one pull, one trunk exercise.
2 to 3 sets per exercise, 8 to 12 reps.
Load at 50 to 60 percent of your pre-layoff weights. If you were doing 100 kg x 5, you are now doing 55 to 60 kg x 8.
End every set with 3 to 4 reps in reserve. No sets to failure at all.
Rest 90 to 120 seconds. Warm up for 8 to 10 minutes.

If you are barely sore after the first session, that is a good sign, not a wasted workout. The point of the first two weeks is letting technique and tendons catch up to muscle.

Weeks 3-6: volume first, then load

General rule: change one variable per week, not two.

Add one set per exercise each week, up to 4 sets. By week six you want 12 to 16 weekly sets per major muscle group.
When the last set starts feeling easy, add 2.5 kg to upper-body lifts and 5 kg to leg work.
Lower the reps in reserve gradually: 2 to 3 in weeks 3-4, 1 to 2 in weeks 5-6.
From week five you can add a fourth session, but only if sleep and appetite are still normal.

Conditioning runs alongside

Two sessions per week, 20 to 30 minutes at a pace where you can still speak in full sentences, roughly 60 to 70 percent of max heart rate. If you used to run 20 km a week, start at 8 to 10 km and add no more than 10 percent weekly. Save intervals for week four and later: 6 x 1 minute hard with 2 minutes of easy walking between.

Sleep, food and soreness

Protein 1.6 to 2.2 g per kilogram of bodyweight. At 90 kg that is 145 to 200 g per day, split across 4 meals of 35 to 45 g.
Sleep 7 to 9 hours. Under 6 hours visibly slows how fast strength returns.
Soreness peaks 24 to 48 hours after a session and normally clears within 72 hours. If it lasts past day four, or you cannot straighten your arm, the previous session was too much.
Aim for 7,000 to 8,000 steps a day outside of training — it helps recovery more than any supplement will.

Four mistakes that keep repeating

Training to failure on day one to prove you did not lose much.
Going straight back to the old five-day-a-week schedule.
Quitting in week three because the numbers are not climbing fast enough.
Ignoring a dull shoulder or knee ache that has lasted more than two weeks.

When to see a doctor

These are not wait-and-see situations:

Chest pain or pressure during exertion, especially if it spreads to the jaw, neck or left arm — emergency care immediately.
Fainting, dizziness, or breathlessness out of proportion to the effort.
Dark tea-coloured urine with severe pain and swelling 24 to 72 hours after training — urgent, this can be rhabdomyolysis.
Joint pain lasting more than two weeks, swelling, or a joint that catches or locks.
If the layoff was due to surgery, injury, pregnancy or a heart problem, clear the return plan with your doctor before session one.
If you are over 40, long detrained, and have high blood pressure, high cholesterol, diabetes or family heart disease — get checked before you add hard intervals.

The first month is not about making progress. It is about being able to train normally a month from now.

The short version

Start at 50 to 60 percent of your old loads, 3 sessions a week, 2 to 3 sets of 8 to 12 reps.
No sets to failure for the first two weeks; always leave 3 to 4 reps in reserve.
From week three add one set per week, then add 2.5 kg upper body and 5 kg lower body.
Conditioning twice a week for 20 to 30 minutes at conversational pace; intervals only from week four.
Protein 1.6 to 2.2 g per kilogram, sleep 7 to 9 hours, and see a doctor immediately for chest pain or dark urine.