Table 2.

Development of muscle strength (MRC score) after 24 months

		Improved	Unchanged	Worse	p
Hip	Extension right (n = 37)	17 (46%)	11 (30%)	9 (24%)
	Extension left (n = 37)	18 (49%)	15 (40%)	4 (11%)
	Flexion right (n = 47)	18 (38%)	19 (40%)	10 (21%)
	Flexion left (n = 47)	16 (34%)	22 (47%)	9 (19%)
Knee	Extension right (n = 46)	20 (43%)	22 (48%)	4 (9%)	p < 0.00625
	Extension left (n = 45)	18 (40%)	24 (53%)	3 (7%)	p < 0.00625
	Flexion right (n = 46)	13 (28%)	24 (52%)	9 (20%)
	Flexion left (n = 46)	10 (22%)	26 (57%)	10 (22%)
Ankle	Extension right (n = 41)	23 (56%)	14 (34%)	4 (10%)	p < 0.00625
	Extension left (n = 41)	23 (56%)	14 (34%)	4 (10%)	p < 0.00626
	Flexion right (n = 33)	15 (46%)	7 (21%)	11 (33%)
	Flexion left (n = 33)	13 (39%)	7 (21%)	13 (39%)