Table 2: Description of the qualitative moderating variables.

Variables Frequency%

Treatment variables
 Type of treatment5ST + PT360
H120
SPORT120
 Mode of application5Direct240
Indirect240
Mixed120
 Informed consent5Yes 350
No250

Context variables
 Country5Germany225
Brazil125
Australia125
Turkey125
 Place5Hospital375
Domiciliary225

Methodological variables
 Pretest5Yes5100
No00
 Assignment5Random00
Not random5100
 Control group5Yes10
No 4100
 Date52003125
2005–2013475
 Published 5Yes5100
No00
 Source 5Journal article5100

: number of studies; ST: strength training; PT: proprioception training; H: hydrotherapy; SPORT: sports therapy.