Table 2 Mean values and differences with 95% confidence intervals (95%-CI) of PA parameters and PC measures
|  | T0 (n = 111) | T0-T1 | T1 (n = 103) | T1-T2 | T2 (n = 92) |
|---|---|---|---|---|---|
Global cumulative PA parameters | |||||
 Average daily walking duration [min] | 22.5 (17.5; 27.4) | 12.5 (9.2; 15.8) | 35.0 (30.0; 40.0) | 8.7 (2.3; 15.1) | 43.7 (36.8; 50.6) |
 Average daily number of steps | 1304 (1019; 1589) | 837 (595; 1080) | 2141 (1857; 2426) | 731 (278; 1184) | 2872 (2383; 3361) |
 Average daily upright duration [min] | 171.9 (146.4; 197.5) | 46.9 (27.8; 65.9) | 218.8 (193.4; 244.2) | 72.6 (45.1; 100.2) | 291.4 (257.8; 325.0) |
In-depth PA parameters | |||||
 Average daily walking interval length [s] | 11.9 (10.6; 13.1) | 2.34 (0.68; 4.00) | 14.2 (12.7; 15.7) | −4.19 (−5.56; −2.82) | 10.0 (9.2; 10.8) |
 Coefficient of variation for walking interval lengths ≥10s | 0.70 (0.66; 0.75) | 0.08 (0.02; 0.15) | 0.79 (0.72; 0.85) | 0.22 (0.11; 0.34) | 1.01 (0.88; 1.14) |
 Number of walking bouts ≥1 s | 99 (81; 116) | 49 (38; 60) | 147 (130; 165) | 94 (64; 124) | 241 (207; 276) |
 Number of walking bouts ≥10 s | 36 (28; 43) | 19 (14; 24) | 54 (47; 62) | 21 (11; 32) | 76 (64; 88) |
 Number of walking bouts ≥60 s | 4 (2; 5) | 2 (1; 3) | 6 (5; 7) | −2 (−4; − 1) | 3 (3; 4) |
 Median cadence [steps/min] | 52.6 (50.3; 54.9) | 6.23 (4.05; 8.41) | 58.8 (56.8; 60.8) | 3.14 (−0.41; 6.68) | 61.9 (58.6; 65.3) |
 Average daily number of sit-to-stand transfers | 49 (45; 53) | 7 (4; 10) | 56 (52; 60) | −12 (−15; −8) | 44 (41; 48) |
Traditional PC measures | |||||
 Gait speed [m/s]a | 0.45 (0.41; 0.48) | 0.09 (0.06; 0.13) | 0.54 (0.50; 0.58) | −0.01 (−0.06; 0.04) | 0.53 (0.48; 0.58) |
 5-Chair rise time [s]a | 34.3 (31.0; 37.6) | −5.09 (−7.69; −2.48) | 29.2 (26.4; 32.1) | 0.36 (−2.80; 3.52) | 28.9 (25.8; 31.9) |