A scaption is a shoulder exercise where the arms are raised in the scapular plane, which is approximately 45 degrees between the frontal and sagittal planes. The NASM CPT7 Study Guide explains that this position aligns the glenohumeral joint and reduces impingement risk.
Lifting directly in front of the shoulders (Option B) is a front raise, and lifting directly out to the sides (Option D) is a lateral raise. A 25-degree angle (Option C) is too narrow to be in the optimal scapular plane.
Therefore, the proper cue for a single-leg scaption is to lift at a 45-degree angle.