Physical Therapy Korea
pISSN 1225-8962 eISSN 2287-982X
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The number of articles included in this review

Interventions Class of evidencea Total

1 2 3 4
Exercise programs 33 2 8 1 44
Hip protector 14 5 9 0 28
Safe landing strategy 0 4 9 0 13
Vitamin D intake 8 1 0 0 9
Compliant flooring 1 2 3 0 6

aClass 1: randomized controlled trials. Class 2: non-randomized controlled trials. Class 3: experimental studies with no control group. Class 4: studies not belonging to Class 1, 2, and 3 (i.e., case study).

Phys. Ther. Korea 2021;28:1~12 https://doi.org/10.12674/ptk.2021.28.1.1
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