Table A4.

Prerequisites per domain.

Balance
Maintaining balance in different postures Balance in stance with one foot in front (length of one step) Dynamic balance
Transfers
Sit to stand From lying down to stand	Rolling from prone to supine and vice versa Roll-over
Trunk stability	Trunk mobility
Active upright position of the trunk Maintaining trunk position Trunk stability while moving, in sitting position Trunk stability while moving, in standing position	Trunk mobility in lying position Trunk mobility in sitting position
Walking
Stance phase stability: flat foot, knee and hip extension, trunk alignment Stance on 1 leg Stance on 1 leg while moving the other leg Clearance of the foot during the swing phase Pre-position of the foot at the end of the swing phase	Step length Strength of the lower-limb muscles Walking (forward, sideways, and backwards) Transfers (sitting to standing and vice versa) Walking speed
Going up and down the stairs
Balance in stance Balance on one leg Stance on a step on one leg, the other leg moves Stance with one foot on a step Pushing up on step	Going up and down the stairs: alternating versus not alternating Jumping from a step Active hip- and knee-extension of the stance leg