Priya Shah
Why Strength Training Is Worth Returning To
After an illness, the instinct is often to rest until you feel completely yourself again. But muscles lose strength surprisingly quickly during a stretch of inactivity — sometimes noticeably within a couple of weeks. That loss shows up in ordinary ways: a flight of stairs feels steeper, carrying a bag of shopping becomes a two-trip job, and getting out of a low chair takes a small effort of will.
Strength training isn't only about toning or gym mirrors. It protects your joints, supports bone density, helps regulate blood sugar, and makes everyday movement feel less like hard work. It also tends to lift mood and improve sleep, which matters when you're rebuilding after being unwell. The aim here isn't to "get back to where you were" in a fortnight. It's to give your body a clear, repeated signal that it can safely rebuild — and to do that gently enough that your recovery isn't set back.
Before Your First Session
If you were hospitalised, or if you had a heart, lung or neurological condition, speak to your GP or practice nurse before starting. The same applies if you're still getting breathless at rest, experiencing chest pain, or finding that exertion leaves you floored for days afterwards. A referral to a physiotherapist is often the most useful next step, and NHS exercise referral schemes exist in most areas for people managing long-term conditions.
Once you have the go-ahead, spend a few days simply noticing your current baseline. How many times can you stand up from a dining chair in 30 seconds without using your arms? How far can you walk before you need to stop? Can you carry two full litres of milk up a flight of stairs? Write these down. They're your starting point, and they'll be the proof of progress later, when changes feel invisible.
Start Smaller Than Feels Satisfying
This is the part people find hardest. Your first sessions should feel almost too easy — that's deliberate. Think 10 to 20 minutes, twice a week, with at least one full rest day in between.
- Chair sit-to-stands: one or two sets of five to eight, pressing through your heels.
- Wall press-ups: hands at chest height, body straight, five to eight slow repetitions.
- Glute bridges: lying on your back, knees bent, lift the hips and lower with control.
- Resistance band rows: anchored to a door handle or sturdy rail, pulling elbows back.
- Heel raises and step-ups onto the bottom stair, holding the handrail.
Finish each session feeling as though you could comfortably have done a little more. That spare capacity is what keeps you consistent.
Reading Fatigue, Not Just Soreness
Mild muscle soreness 24 to 48 hours after training is normal. It's usually localised to the muscles you worked, and it eases as you move around. What matters far more after illness is your overall fatigue.
Work at an effort level of about three or four out of ten — where you're breathing a little harder but could still hold a conversation. Then watch the next 24 to 48 hours. Warning signs to take seriously include:
- Crushing tiredness or a flu-like feeling that arrives hours later.
- Dizziness, palpitations, or breathlessness out of proportion to the effort.
- Sleep that becomes markedly worse, not better.
- Any return of your original symptoms, or symptoms lasting more than a day.
If any of these appear, cut your next session back to roughly half and see how you respond. A pattern of crashing after exertion is a clear signal to seek advice rather than push through.
Building Intensity, One Step at a Time
When your current sessions feel genuinely comfortable and recovery feels stable — usually after two or three weeks — change one thing only. Add a repetition or two, add a single set, or add a slightly stronger band. Then hold that new level for another fortnight before touching anything else.
Sleep, food and hydration do much of the actual rebuilding. Aim for a palm-sized portion of protein at each meal, plenty of water, and as much sleep as you can reasonably protect. Two sessions a week is a fine long-term target; three is a bonus, not a requirement. Expect a two-steps-forward, one-step-back rhythm, and treat the backward step as information rather than failure.
Making It Stick, and Knowing When to Ask for Help
Attach your sessions to something you already do — after your morning cup of tea, before the lunchtime news — and keep a simple note of what you did and how you felt. Seeing three weeks of entries is quietly encouraging when progress feels slow.
If you're still struggling after six to eight weeks, or if fatigue keeps derailing you, ask your GP about physiotherapy or a supervised rehabilitation programme. Slow progress is still progress, and rebuilding strength after illness is a patient, cumulative business. Be kind to yourself, keep the sessions short, and let consistency do the heavy lifting.
