Funny enough I just joined the group after being in the course for 4 months! My name is Jack McCollom out of Des Moines, IA and I passed my exam this morning first try!

A strength coach designs a bone health program for a 55-year-old female with low BMD (osteopenia, T-score -1.5) at the hip. The program includes: - Moderate-load resistance training (65% 1RM, 8-12 reps) - Elliptical machine 45 min, 3x/week - Yoga and flexibility work 2x/week Critique this program for bone adaptation optimization. A. The program is suboptimal for bone growth: it lacks high-impact loading, multi-directional forces, and sufficient mechanical stress. Moderate loads (65% 1RM) fall below the intensity needed for robust osteogenic stimulus. Elliptical and yoga provide minimal impact or directional variance. Recommended additions: high-impact activities (jumping, running), heavy compound lifts (>80% 1RM), and multi-planar resistance exercises. B. The program is optimal; moderate loading is best for bone health C. Bone adaptation requires only resistance training with no impact component Answer in the poll, then explain your rationale below in the comments! I'll follow up with my breakdown of the question after enough people have responded. From Chapter 5: Adaptations to Anaerobic Training Programs DCO Code: 1.D2 NOTE: Image is for illustration purposes, not needed to answer the question.

Definition: Mechanical advantage describes how effectively a muscle or external load can produce torque around a joint, based largely on moment arm length. In resistance training: - When a muscle’s internal moment arm is large relative to the external moment arm, the muscle has a mechanical advantage and can produce force more efficiently. - When the external moment arm is large, the muscle is at a mechanical disadvantage and must produce more force to move the load. Example: At the bottom of a squat, changes in hip and knee moment arms can shift mechanical advantage between the glutes, quadriceps, and spinal extensors, influencing which muscles are stressed most. Why This Matters for Coaches - Explains why exercises feel harder at certain joint angles - Guides exercise selection and modification - Helps manage joint stress and tissue loading - Clarifies how changes in stance, grip, or range of motion alter difficulty without changing load So when you change body position or setup, you’re changing mechanical advantage and how much force the muscle must generate. This—along with individual anthropometric variation—is one reason why certain variations of a lift are harder or easier for various athletes. Question: What are some exercise variations or setups you use to alter mechanical advantage for yourself or your athletes?