Performing Wheelies

Tipping the wheelchair backwards, using the pull-back method

Tipping the wheelchair backwards, using the roll-back method.

Resting against a 10cm level change.

Resting against a level change that is too low, allowing a rear tip.

Attempting to perform a wheelie. The fixed rear anti-tip devices make this unsuccessful.

Performing a stationary wheelie for 10s in a 1.5m-diameter circle.

Using a backward-then-forward approach to achieve wheelie takeoff, then using a forward-only approach.

Using the reactive balance strategy, with the rear-wheel movement following the tips.

Using the proactive balance strategy, keeping the rear wheels in motion to avoid tips.

Training in a pothole, as a learning exercise.

Training with a level change and cinder blocks (initially tightly pressed against the wheels, then more loosely), as a learning exercise. Training with a level change and cinder blocks (initially tightly pressed against the wheels, then more loosely), as a learning exercise.

Performing a stationary wheelie in gravel.

Wheelie on a soft surface (a gym mat)

Performing a wheelie with two fingers of one hand.

Using a foot to assist takeoff for a one-handed wheelie.

Maintaining wheelie balance with the eyes open, then closed.

Performing wheelies with the knees extended, then flexed. More force and a greater pitch angle is needed when the knees are extended.

Performing wheelies with the body in different positions