1 = Poor Quality
2 = Generally Poor Quality
3 = Moderate Quality
4 = Good Quality
5 = Excellent Quality

1 = Very Poor
2 = Poor
3 = Average
4 = High
5 = Very High

0 = Unknown
1 = Europe
2 = South America
3 = North America
4 = Asia
5 = Oceanía

1 = Healthcare professional
2 = Exercise professional
3 = Alternative medicine therapist
4 = non-healthcare professional
5 = Patient

1 = Aerobic exercise
2 = Strength exercise
3 = Stretch/mobility
4 = Yoga/Tai Chi
5 = Meditation/breathing/relaxation
6 = Alternative therapy
7 = Self-massage/posture
8 = Lifestyle/behavior changes regarding exercise
9 = Vestibular rehabilitation

0 = Professional author
1 = Non-professional author