Assume that the people using wheelchairs have good trunk and upper body strength, but that they don't have use of their lower extremities. Propelling the wheelchair forward with assistance. Elevating the caster wheels with assistance. Descending a steep hill with assistance. Leaving an elevator with assistance. Using an escalator with assistance when no other means of going up and down between levels is available. Independently going up an incline. Independently going down a curb. Independently using a curb cutout. Independently going through a self-closing door that opens away from the person. Reaching an object on the floor in front of the wheelchair.

Assume that the people using wheelchairs have good trunk and upper body strength, but that they don't have use of their lower extremities. Propelling the wheelchair forward with assistance. Elevating the caster wheels with assistance. Descending a steep hill with assistance. Leaving an elevator with assistance. Using an escalator with assistance when no other means of going up and down between levels is available. Independently going up an incline. Independently going down a curb. Independently using a curb cutout. Independently going through a self-closing door that opens away from the person. Reaching an object on the floor in front of the wheelchair.