Table 3.

Physical activity pattern descriptive statistics and between-subject effects for one-way repeated ANOVA (less than 100 steps/minutes) and a Friedman test (>100 steps/minutes).

Pattern	Time Points	Mean/median	Standard Deviation	Standard Error of the Mean	95% Confidence Interval		F	P
					Lower Bound	Upper Bound
<60 steps/min	Pre-Total Knee Arthroplasty	369	189	33.07	301	436	117.8	.0001
	6 months Post-Total Knee Arthroplasty	458	161	28.13	401	516
	12 months Post-Total Knee Arthroplasty	593	188	32.76	526	660
Slow to medium steps (≥60 and ≤100 steps/min)	Pre-Total Knee Arthroplasty	232	148	25.79	180	285	65.6	.0001
	6 months Post-Total Knee Arthroplasty	326	147	25.62	274	379
	12 months Post-Total Knee Arthroplasty	457	179	31.26	393	520
Moderate to vigorous (>100 steps/min)	Pre-Total Knee Arthroplasty	6.6	∗	∗	.21	49	18.72	.0001
	6 months Post-Total Knee Arthroplasty	10.5			.15	114
	12 months Post-Total Knee Arthroplasty	41.7			.28	379

∗A Friedman test was used as a non-parametric test alternative to the one-way repeated measure ANOVA because the assumption of normality distribution was violated for moderate to vigorous physical activity (MVPA).