In ideal alignment, how wide should the scapula be from the spine?

In ideal alignment, the spacing of the scapulae from the spine is typically considered to be around three finger widths. This measurement indicates a neutral alignment where the shoulder blades are not overly retracted or protracted. Proper scapular positioning is essential for optimal shoulder mechanics, allowing for efficient movement of the arms and preventing unnecessary strain on the shoulder joint and surrounding muscles.

Having the scapula positioned at three finger widths from the spine suggests that there is appropriate muscular balance around the shoulders, which supports good posture. This alignment not only facilitates better movement patterns but also contributes to the overall stability of the upper body during activities.

In contrast, the other answers reflect either too narrow or too wide a spacing which could indicate muscular imbalances or postural issues. For instance, one finger width may suggest overly retracted scapulae, leading to a hunched or dysfunctional posture, while four finger widths could indicate excessive protraction, which compromises shoulder function and can lead to shoulder discomfort or injuries.