Table II.

Inertial measurement unit data metrics

	Preoperative	Postoperative		P value
		3 mo	1 yr
No. of elevation events/h	125 ± 53	127 ± 59	150 ± 72	.105
No. of elevation events/h > 90°	5 ± 4	10 ± 8	11 ± 9	.006∗
% of time spent at >90° of elevation	0.73 ± 1.24	1.25 ± 1.67	0.78 ± 1.01	.321
% of day spent performing low-intensity activity	62 ± 15	64 ± 15	61 ± 17	.451
% of day spent performing moderate-intensity activity	30 ± 9	27 ± 11	29 ± 10	.592
% of day spent performing high-intensity activity	8 ± 7	8 ± 9	10 ± 11	.360

Data are presented as mean ± standard deviation.

^∗Statistically significant (P < .05).