Prone on elbows is preferred, weight on ulnar side1
Prone on elbows: Able to weight shift at shoulders and reach with upper extremity on face side1
Prone on extended arms: Weight bearing on radial side of hand due to shoulder abduction and internal rotation1,6
Shifts weight to skull side in prone on elbows to reach; weight on ulnar borders in prone on elbows
Supports self in prone on extended arms; weight bearing on radial side of hand
Prone on elbows is preferred; weight on ulnar side; holds object with one hand and uses other to touch it