Table 3.
Couple-Specific Performance Ratios of Hourly PA and SB
| Couple-Specific Performance Ratios | Pre-arthroplasty | Post-arthroplasty | Analysis of Change in Performance Ratios | Effect Size (Cohen’s d) |
|---|---|---|---|---|
| Sedentary behavior | Mdn [IQR] | |||
| Total time in sedentary bouts (∆ min) | 7.58 [2.86, 14.18] | 6.25 [2.83, 12.37] | X2 F(1) = 1.609, p = 0.205 | 0.016 |
| Length of sedentary bouts (∆ min) | 4.89 [1.81, 8.70] | 4.68 [2.16, 12.86] | X2 F(1) = 0.102, p = 0.750 | 0.007 |
| Physical activity | Mdn [IQR] | |||
| Number of steps (∆ #) | 92.04 [35.47, 181.61] | 78.96 [35.12, 199.40] | X2 F(1) = 0.868, p = 0.352 | −0.114 |
| Total time in MVPA (∆ min) | 1.64 [0.60, 3.29] | 1.33 [0.57, 2.90] | X2 F(1) = 0.012, p = 0.914 | 0.066 |
Notes: The four accelerometric parameters recorded in the patients and their partners were transformed into couple-specific hourly performance ratios (∆, ie, absolute deviations). Data are presented as medians (Mdn) and interquartile ranges (IQR). There were no significant changes from pre-arthroplasty to post-arthroplasty condition (p ≥ 0.205).