Multiple Sclerosis Heat Sensitivity and Exercise: How to Adapt Training
- Tom Morgan, Chartered Physiotherapist
- 5 days ago
- 2 min read
Updated: 14 hours ago
Heat can temporarily worsen neurological symptoms in MS even when the disease itself has not progressed. Exercise can still be appropriate, but temperature, session length, clothing, hydration and recovery may need adapting.
For this stage of Multiple Sclerosis physiotherapy and exercise, the most useful priorities are usually:
choosing an exercise dose that is challenging but repeatable
working on the specific limiting problem such as fatigue, balance, walking, strength or foot clearance
using pacing and recovery rather than avoiding activity completely
adapting the programme as symptoms, relapses, temperature and daily capacity change
MS rehabilitation should be individualised because symptoms can fluctuate. Progress does not always mean doing more repetitions: it may mean better movement quality, less support, improved endurance, a harder balance task, greater resistance or completing the same task with less fatigue. Build from a level that can be repeated consistently rather than using one very good day as the new baseline.
Use a cool environment, fans or pre-cooling if helpful, choose shorter bouts with rests and stop before overheating becomes marked. Track whether symptoms settle after cooling; a new persistent neurological change should be discussed with the MS team.
using a one-size-fits-all exercise sheet regardless of symptoms
stopping all exercise because fatigue is present
pushing through marked heat-related symptom worsening without adapting the environment or dose
focusing only on walking and ignoring strength, balance, transfers, upper limb function or participation goals
When should you get extra help?
New or clearly worsening neurological symptoms that are unusual for you should be discussed with your MS team, particularly when they last rather than settling with rest or cooling. Sudden severe symptoms, chest pain, collapse or another medical emergency should be assessed urgently rather than treated as an exercise problem.
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