Table 1

Participation per sport activity within 1 year prior (Pre-KA) and more than 1 year after knee arthroplasty (Post-KA; n=873)

	Pre-KA	Post-KA	±	Unit of measure
Total sport activities	2.1	2.7		Mean N activities per participant
	4.3	5.0
Low-impact sport activities	1.3	1.6		Mean N activities per participant
	2.5	2.9		Mean N activities per active participant
Swimming	371	449	+178	N participants
Cycling	368	484	+116	N participants
Walking	271	325	+54	N participants
Golf	45	46	+1	N participants
Aqua aerobic	20	33	+13	N participants
Fishing	18	12	−6	N participants
Gate ball	3	4	+1	N participants
Croquet	2	1	−1	N participants
Medium-impact sport activities	0.5	0.7		Mean N activities per participant
	1.0	1.3		Mean N activities per active participant
Hiking/Nordic walking	309	476	+167	N participants
Fitness/aerobics	51	64	+13	N participants
Bowling	24	20	−4	N participants
Cross-country skiing	23	27	+4	N participants
Badminton	10	7	−3	N participants
Table tennis	5	3	−2	N participants
Rowing	3	0	−3	N participants
High-impact sport activities	0.4	0.5		Mean N activities per participant
	0.8	0.8		Mean N activities per active participant
Skiing/snowboarding	131	150	+19	N participants
Dancing	91	117	+26	N participants
Running/jogging	53	46	−7	N participants
Gymnastics	32	37	+5	N participants
Tennis/squash	29	31	+2	N participants
Ball sports*	12	4	-8	N participants
Mountain climbing	2	7	+5	N participants
Other†	34	53	+19	N participants
No participation in any sport activity	50%	46%		% of total participants
Participation in ≥1 sport activities	50%	54%		% of total participants