Answer:
c) Gluteus Maximus.
Explanation:
When we talk about excessive forward trunk lean during an overhead squat assessment, we're often looking at imbalances or weaknesses in the muscles responsible for maintaining proper posture and alignment during the squat.
Here's a simplified way to think about it for each option:
a) Rectus Abdominis: These are your abs. While they are important for trunk stability, underactivity here usually leads to issues like a protruding belly, not necessarily a forward lean
b) Quadriceps: These are the muscles on the front of your thigh. They help you straighten your legs and stand up from a squat. If they were underactive, you might have difficulty rising, but they aren't typically the main culprits for a forward lean.
c) Gluteus Maximus: This is the big muscle of your rear end. It's super important for standing up straight from a squatting position. If your gluteus maximus is underactive, you might lean forward to compensate because you're not getting enough power from your hips to keep upright.
d) Latissimus Dorsi: These are large muscles on your back. While they play a role in arm and shoulder movement, they're not primarily responsible for your posture during a squat.