Spine Stabilization Series II #3 targets which muscle groups?

Spine Stabilization Series II #3 targets which muscle groups?

• A. Trapezius/Tricep Reach.
• B. Latissimus Dorsi/Hamstrings.
• C. Pectoral Fly.
• D. Deltoids and biceps.

Answer: (A)

The main idea here is keeping the spine stable while the arms move, with the shoulder girdle held solid so the torso stays neutral. The trapezius acts as a key stabilizer for the shoulder blades, helping to set and hold the scapula in place during the reach. Paired with a tricep reach, the elbow extends while that stability is maintained, letting the arm lengthen without letting the spine or rib cage collapse or twist. This duo trains the small postural muscles to work in concert with the arm, preserving alignment and reducing strain on the lower back. Other options pull in muscle groups that don’t prioritize scapular stability and spinal alignment in this drill—for example, focusing on chest or wide shoulder movement, or using the back and biceps in a way that can loosen the spine—so they don’t fit the same stabilization pattern as trapezius with a controlled tricep reach.

The main idea here is keeping the spine stable while the arms move, with the shoulder girdle held solid so the torso stays neutral. The trapezius acts as a key stabilizer for the shoulder blades, helping to set and hold the scapula in place during the reach. Paired with a tricep reach, the elbow extends while that stability is maintained, letting the arm lengthen without letting the spine or rib cage collapse or twist. This duo trains the small postural muscles to work in concert with the arm, preserving alignment and reducing strain on the lower back. Other options pull in muscle groups that don’t prioritize scapular stability and spinal alignment in this drill—for example, focusing on chest or wide shoulder movement, or using the back and biceps in a way that can loosen the spine—so they don’t fit the same stabilization pattern as trapezius with a controlled tricep reach.