Table 4 Associations of upright and stepping event metrics with timed chair stand test

Daily step count

-0.78 [-0.97,-0.60]

-1.03 [-1.23,-0.82]

-0.51 [-0.70,-0.33]

-0.68 [-0.89,-0.48]

-

-

(per + 3582 steps)

(< 0.001)

(< 0.001)

(< 0.001)

(< 0.001)

-

-

Upright events

-0.33 [-0.52,-0.13]

-0.43 [-0.62,-0.23]

-0.20 [-0.40,-0.01]

-0.26 [-0.46,-0.07]

-0.13 [-0.32,0.06]

-0.22 [-0.42,-0.02]

(per + 13.1 n)

(0.001)

(< 0.001)

(0.038)

(0.009)

(0.191)

(0.029)

Stepping events

-0.55 [-0.75,-0.35]

-0.52 [-0.73,-0.32]

-0.46 [-0.65,-0.26]

-0.46 [-0.66,-0.26]

-0.16 [-0.38,0.07]

-0.17 [-0.39,0.05]

(per + 59.1 n)

(< 0.001)

(< 0.001)

(< 0.001)

(< 0.001)

(0.174)

(0.138)

Duration of stepping events^a

-0.38 [-0.56,-0.21]

-0.83 [-1.06,-0.60]

-0.11 [-0.28,0.07]

-0.37 [-0.60,-0.14]

0.33 [0.13,0.54]

0.13 [-0.13,0.38]

(per + 8.8 s)

(< 0.001)

(< 0.001)

(0.244)

(0.001)

(0.001)

(0.337)

Steps per stepping event^a

-0.42 [-0.60,-0.25]

-0.89 [-1.12,-0.67]

-0.15 [-0.33,0.02]

-0.43 [-0.66,-0.21]

0.25 [0.05,0.45]

0.03 [-0.22,0.29]

(per + 16.7 steps)

(< 0.001)

(< 0.001)

(0.089)

(< 0.001)

(0.016)

(0.791)

Step-weighted cadence^{a b}

-0.66 [-0.84,-0.48]

-1.02 [-1.24,-0.81]

-0.38 [-0.56,-0.20]

-0.62 [-0.83,-0.40]

-0.16 [-0.35,0.04]

-0.39 [-0.62,-0.16]

(per + 8.6 steps/min)

(< 0.001)

(< 0.001)

(< 0.001)

(< 0.001)

(0.113)

(0.001)

Duration of upright events

-0.22 [-0.43,-0.00]

-0.03 [-0.22,0.15]

-0.2 [-0.41,0.01]

-0.09 [-0.27,0.09]

0.02 [-0.19,0.24]

0.06 [-0.12,0.24]

(per + 2.9 min)

(0.046)

(0.727)

(0.065)

(0.314)

(0.826)

(0.526)

Stepping proportion of upright events

-0.38 [-0.57,-0.20]

-0.24 [-0.45,-0.03]

-0.33 [-0.52,-0.15]

-0.16 [-0.36,0.04]

-0.15 [-0.34,0.04]

0.00 [-0.21,0.21]

(per + 5.6%)

(< 0.001)

(0.025)

(< 0.001)

(0.116)

(0.123)

(0.999)

Step count of upright events

-0.51 [-0.70,-0.33]

-0.58 [-0.78,-0.38]

-0.32 [-0.51,-0.14]

-0.38 [-0.58,-0.18]

0.31 [0.05,0.57]

0.23 [-0.04,0.49]

(per + 82.3 steps)

(< 0.001)

(< 0.001)

(0.001)

(< 0.001)

(0.018)

(0.090)

Stepping events within upright events

-0.20 [-0.41,0.02]

-0.01 [-0.20,0.18]

-0.23 [-0.44,-0.02]

-0.12 [-0.30,0.07]

-0.01 [-0.22,0.21]

0.06 [-0.12,0.25]

(per + 3.0 n)

(0.072)

(0.906)

(0.030)

(0.213)

(0.946)

(0.506)

Upright event burstiness

-0.01 [-0.21,0.19]

-0.20 [-0.42,0.01]

0.12 [-0.07,0.31]

-0.07 [-0.28,0.14]

0.17 [-0.02,0.36]

-0.05 [-0.25,0.16]

(per + 0.09)

(0.902)

(0.062)

(0.22)

(0.489)

(0.084)

(0.666)

Sedentary event burstiness

-0.31 [-0.49,-0.13]

-0.41 [-0.62,-0.19]

-0.24 [-0.41,-0.06]

-0.35 [-0.56,-0.14]

-0.06 [-0.24,0.12]

-0.23 [-0.44,-0.02]

(per + 0.08)

(0.001)

(< 0.001)

(0.009)

(0.001)

(0.510)

(0.035)