Submaximal Graded Aerobic Exercise 
The aerobic exercise was done on a stationary bike to reduce exposure of cervical compression and impact forces, minimizing symptom exacerbation due to something other than the exercise itself. During the initial session, cases were instructed to reach a baseline heart rate (HR) above 100 BPM if possible, while being monitored for any increase in symptoms which would terminate the test. In each of the following sessions cases then attempted to increase their HR by 10 BPM, on the condition that symptoms were not aggravated. HR thresholds were noted during the first and last session. The intervention consisted of 8 individual consultations distributed twice a week over 4 weeks, with the exercise lasting 15 minutes each session.