Fig. 1

Predicted profile characteristics relating to H1 and H2. Each bar represents an hypothesised movement profile and are clustered by age at measurement. Each profile is associated with less movement than its equivalent at the timepoint prior.
Predicted profile characteristics relating to H1 and H2. Each bar represents an hypothesised movement profile and are clustered by age at measurement. Each profile is associated with less movement than its equivalent at the timepoint prior.