Table 6 Associations of upright and stepping event metrics with SF-36 physical functioning subscale

Daily step count^{a b}

3.14 [2.62,3.67]

4.44 [3.87,5.01]

1.88 [1.37,2.40]

2.87 [2.31,3.43]

-

-

(per + 3582 steps)

(< 0.001)

(< 0.001)

(< 0.001)

(< 0.001)

-

-

Upright events

0.55 [-0.01,1.11]

0.87 [0.30,1.44]

-0.16 [-0.69,0.37]

-0.04 [-0.58,0.50]

-0.47 [-1.00,0.06]

-0.22 [-0.76,0.32]

(per + 13.1 n)

(0.056)

(0.003)

(0.556)

(0.888)

(0.080)

(0.423)

Stepping events

1.45 [0.88,2.02]

1.94 [1.36,2.52]

0.94 [0.40,1.48]

1.52 [0.98,2.07]

-0.63 [-1.24,-0.01]

0.04 [-0.57,0.65]

(per + 59.1 n)

(< 0.001)

(< 0.001)

(0.001)

(< 0.001)

(0.046)

(0.899)

Duration of stepping events^{a b}

2.52 [2.01,3.02]

4.08 [3.44,4.72]

1.36 [0.87,1.84]

2.23 [1.61,2.86]

0.14 [-0.43,0.70]

0.85 [0.15,1.56]

(per + 8.8 s)

(< 0.001)

(< 0.001)

(< 0.001)

(< 0.001)

(0.628)

(0.017)

Steps per stepping event^{a b}

2.51 [2.01,3.00]

4.29 [3.65,4.93]

1.37 [0.89,1.85]

2.42 [1.80,3.05]

0.23 [-0.33,0.78]

1.09 [0.38,1.79]

(per + 16.7 steps)

(< 0.001)

(< 0.001)

(< 0.001)

(< 0.001)

(0.424)

(0.003)

Step-weighted cadence^{a b}

2.86 [2.35,3.36]

4.75 [4.14,5.35]

1.66 [1.17,2.15]

3.05 [2.46,3.64]

0.90 [0.37,1.43]

2.26 [1.64,2.88]

(per + 8.6 steps/min)

(< 0.001)

(< 0.001)

(< 0.001)

(< 0.001)

(0.001)

(< 0.001)

Duration of upright events

1.08 [0.46,1.69]

0.59 [0.06,1.11]

0.97 [0.40,1.55]

0.84 [0.35,1.34]

0.14 [-0.44,0.73]

0.27 [-0.23,0.77]

(per + 2.9 min)

(0.001)

(0.029)

(0.001)

(0.001)

(0.630)

(0.285)

Stepping proportion of upright events^a

0.77 [0.23,1.31]

1.67 [1.07,2.26]

0.58 [0.07,1.08]

1.46 [0.91,2.02]

-0.16 [-0.68,0.36]

0.81 [0.25,1.38]

(per + 5.6%)

(0.005)

(< 0.001)

(0.026)

(< 0.001)

(0.547)

(0.005)

Step count of upright events^{a b}

2.33 [1.80,2.86]

3.14 [2.57,3.71]

1.51 [1.00,2.01]

2.30 [1.76,2.84]

-0.15 [-0.86,0.57]

0.73 [0.01,1.45]

(per + 82.3 steps)

(< 0.001)

(< 0.001)

(< 0.001)

(< 0.001)

(0.687)

(0.047)

Stepping events within upright events

0.68 [0.06,1.29]

0.46 [-0.07,0.99]

0.78 [0.20,1.35]

0.87 [0.37,1.37]

-0.09 [-0.67,0.50]

0.18 [-0.34,0.69]

(per + 3.0 n)

(0.030)

(0.091)

(0.008)

(0.001)

(0.773)

(0.498)

Upright event burstiness

-0.14 [-0.71,0.42]

0.42 [-0.19,1.04]

-0.82 [-1.36,-0.29]

-0.25 [-0.83,0.33]

-1.02 [-1.55,-0.49]

-0.36 [-0.93,0.21]

(per + 0.09)

(0.624)

(0.177)

(0.002)

(0.399)

(< 0.001)

(0.215)

Sedentary event burstiness^a

1.16 [0.65,1.67]

2.01 [1.39,2.64]

0.77 [0.29,1.26]

1.72 [1.14,2.31]

0.08 [-0.41,0.58]

1.24 [0.66,1.83]

(per + 0.08)

(< 0.001)

(< 0.001)

(0.002)

(< 0.001)

(0.745)

(< 0.001)