Table 4 The association between back muscle strength in extension and back pain in people younger than 19 years as reported in four studies
Ref numb. | Name of first author/year | Design of study | Independent variable | Dependent variables listed in method | Dependent variables reported in result section | Association BMS in extension and back pain |
|---|---|---|---|---|---|---|
[24] | Balagué 1993 | CS | BMS in N | Cumulative life prevalence | History of BP | None |
Point prevalence | ||||||
Localization of BP | ||||||
[25] | Balagué 2010 | CS and P | BMS in N | LBP medical attention | History of LBP | None |
LBP consequences | ||||||
Last episode | ||||||
Parental history of BP | ||||||
[26] | Merati 2004 | CS | BMS in N | Frequency of BP | History of BP | None |
[27] | Newcomer 1996 | P | BMS in N | LBP-ever | LBP-ever | None |
Age of first episode | Age of first episode | |||||
One-Year prevalence | One-Year prevalence | |||||
LBP consequences | LBP consequences | |||||
LBP-doctor | LBP-doctor |