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. 2017 Dec 11;17:133. doi: 10.1186/s12893-017-0318-7

Table 2.

Accelerometer assessed physical activity and sedetary time, three months before and nine and 48 months after Roux-en-Y Gastric Bypass surgery. Differences within women tested with pairwise t-test

Women PA (N = 30) Pre-surgery, 1st Mean (SD) 9 months post-surgery, 2nd Mean (SD) 48 months post-surgery, 3rd Mean (SD) Difference 1st and 2nd (P-value) Difference 2nd and 3rd (P-value) Difference 1st and 3rd (P-value)
Wear time hours/day 14.7 (1.2) 14.7 (1.5) 14.8 (1.3) 0.04 (p = 0.863) 0.09 (p = 0.650) 0.13 (p = 0.524)
Counts per min/day 681.7 (233.1) 671.4 (234.6) 657.6 (235.8) −10.21 (p = 0.789) −13.88 (p = 0.755) −24.09 (p = 0.541)
MVPA min/day 34.5 (21.5) 36.0 (28.1) 32.5 (21.7) 1.57 (p = 0.744) −3.58 (p = 0.527) −2.01 (p = 0.650)
LPA min/day 427.6 (100.1) 419.8 (90.1) 423.2 (99.2) −7.71 (p = 0.603) 3.41 (p = 0.816) −4.31 (p = 0.758)
Sedentary min/day 419.6 (115.9) 428.3 (96.5) 434.0 (114.6) 8.68 (p = 0.573) 5.67 (p = 0.702) 14.35 (p = 0.349)