Complex sentence: In order to obtain better results, possible coexisting motor deficits need to be addressed in addition to those induced by ataxia; for example muscle weakness and decreased endurance which would lead to increasing fatigue and poorer movement patterns.
Split into simpler sentences: In order to obtain better results, possible coexisting motor deficits need to be addressed in addition to those induced by ataxia. For example, muscle weakness and decreased endurance could lead to increasing fatigue and poorer movement patterns.