Table 4.

Effects of physical exercise on MS.

Potentially positive effects of physical activity in patients with MS	Potentially negative effects of physical activity on patients with MS
Confinement of functional constraint	Danger of sustaining a worsening of symptoms
Improvement of functional capacity	Possibility of demotivation through worsening of the disease
Elevated feeling of self-confidence and self-efficacy	Aggravated execution (depending on form of sport and characteristic of symptoms)
Reduction of spasticity	Increased pain
Reduction of fatigue
Retention of range of motion
Possible neuroprotective effects
Improved dealing with symptoms
Prevention of comorbidities
Communication in groups