What Should I Do if My MS Symptoms Get Worse After Exercise?
Some people with MS notice that symptoms such as weakness, blurred vision, heaviness or fatigue temporarily feel worse during or after exercise, particularly when body temperature rises. The important questions are what triggered the change, whether it settles with recovery and cooling, and whether the symptoms are new or sustained.
First stop and let your body recover
Pause the activity, rest somewhere safe and cool down if you are hot. Hydration, removing an extra layer, using a fan or moving to a cooler environment may help when temperature is contributing. Do not keep increasing the exercise intensity to ‘push through’ a neurological symptom change.
Review the exercise dose
If symptoms settle but the same pattern happens every session, adjust the programme. A shorter bout, longer rest, lower resistance, cooler environment or different time of day may be enough to make exercise more manageable.
Temporary worsening is not the same as ignoring new symptoms
Heat and exertion can temporarily bring out existing MS symptoms in some people. However, a new neurological symptom, a clear sustained deterioration or symptoms that do not settle in the way you normally expect should be discussed with your MS nurse or medical team. Do not assume every change is simply caused by exercise.
Think about the wider picture
Are you unwell or fighting an infection?
Was the environment unusually hot?
Did you sleep poorly?
Was this a much larger exercise increase than usual?
Had work, travel or other activity already used a large amount of energy?
Use the response to plan the next session
The aim is not to avoid exercise because one session went badly. Use the information to choose a more appropriate starting dose next time. If you are unsure whether exercise is safe in the context of a symptom change, seek individual advice before progressing.
A structured way to take the next step
The Complete MS Physiotherapy & Rehabilitation Guide includes fatigue and heat-sensitivity guidance alongside 91 adaptable exercises. It is designed so you can choose a level that matches your current function rather than forcing the same programme when symptoms change.
This article provides general physiotherapy education and does not replace individual assessment, diagnosis or treatment. New, severe or rapidly changing symptoms should be assessed by an appropriate healthcare professional.
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