Back Extension #6 primarily targets which muscle group?

Back Extension #6 primarily targets which muscle group?

• A. Biceps Brachii
• B. Gluteus Maximus
• C. Rectus Abdominis
• D. Latissimus Dorsi

Answer: (D)

Back extension movements rely on the muscles that run along the spine to extend and stabilize the trunk. When you rise from the flexed position, the erector spinae—the long group of muscles along your lower and middle back—do most of the work by bringing the spine back to upright and keeping it aligned against the exerted resistance. The latissimus dorsi, while a large back muscle, mainly handles shoulder movements and upper-back stability, not the primary action of extending the spine. It can assist with posture and shoulder girdle support, but the dominant force in this movement comes from the spinal extensors. The glutes and hamstrings help by extending the hips, and the abdominal muscles help control and stabilize the torso, but they’re not the main movers in a back extension. So the key muscle group targeted here is the erector spinae, which drives the trunk extension itself.

Back extension movements rely on the muscles that run along the spine to extend and stabilize the trunk. When you rise from the flexed position, the erector spinae—the long group of muscles along your lower and middle back—do most of the work by bringing the spine back to upright and keeping it aligned against the exerted resistance. The latissimus dorsi, while a large back muscle, mainly handles shoulder movements and upper-back stability, not the primary action of extending the spine. It can assist with posture and shoulder girdle support, but the dominant force in this movement comes from the spinal extensors. The glutes and hamstrings help by extending the hips, and the abdominal muscles help control and stabilize the torso, but they’re not the main movers in a back extension. So the key muscle group targeted here is the erector spinae, which drives the trunk extension itself.