Supplementary data_appendix1

D1 index. The diversity of the sedentary behaviour and walking was characterised using the first three Hill's numbers. For sedentary behaviour the bouts only need to be characterised by their length The range of possible length is discretised in logarithmically distributed bins since the bouts distribution is a power law. For walking the bouts need to be characterised by both length and cadence. The range of possible length is discretised in logarithmically distributed bins since the bouts distribution is log normal. And the range of cadence is discretised on a linear bin scale. These numbers were expressed in equivalent number of bouts D α by taking the exponential of their value to give direct comparison with the total number of sedentary bouts recorded.