Table 2. Results of the therapeutic validity assessment using the CONTENT scale.

Study	Patient eligibility		Setting & therapist	Rationale		Content			Adherence	Total score
	Described	Adequate		Study	Intervention	Intensity	Monitored	Personalized
Strengthening exercise
Husby (2009)	No	No	Yes	Yes	Yes	Yes	Yes	No	No	5
Husby (2010)	No	No	Yes	Yes	Yes	Yes	Yes	No	No	5
Mikkelsen (2012)	No	No	No	Yes	Yes	Yes	No	Yes	Yes	5
Mikkelsen (2014)	Yes	Yes	Yes	Yes	No	Yes	Yes	No	Yes	7
Nankaku (2016)	No	No	Yes	No	No	No	No	No	Yes	2
Okoro (2016)	Yes	No	Yes	No	No	No	Yes	No	Yes	4
Suetta (2004)	No	No	Yes	No	No	No	Yes	No	No	2
Aerobic exercise
Maire (2004)	No	No	No	No	No	No	Yes	Yes	No	2
Maire (2006)	No	No	No	Yes	Yes	Yes	Yes	No	No	4
Functional exercise
Beaupre (2014)	No	No	No	No	No	No	No	No	No	0
Galea (2008)	No	No	No	Yes	No	No	No	No	Yes	2
Giaquinto (2010)	No	No	No	No	No	No	No	No	No	0
Heiberg (2012)	No	No	No	No	No	No	Yes	Yes	No	2
Heiberg (2016)	No	No	No	No	No	No	Yes	No	No	1
Johnsson (1988)	No	No	No	No	No	No	No	No	No	0
Monaghan (2016)	No	No	Yes	No	Yes	No	Yes	No	Yes	4
Umpierres (2014)	No	No	Yes	Yes	No	No	No	No	No	2
Functional exercise and early full weight-bearing
Bodén (2004)	No	No	No	No	No	No	No	No	No	0
Monticone (2014)	No	Yes	No	Yes	No	No	No	No	No	2
Ström (2006)	No	No	No	No	No	No	No	No	No	0
Total score	2 (10%)	2 (10%)	8 (40%)	8 (40%)	5 (25%)	5 (25%)	10 (50%)	3 (15%)	6 (30%)