Bent Knee Calf Raises

Via ChatGPT Plus, a helpful slant board exercise: 

Bent-Knee Soleus Raises (Most Important)

Why it matters

During a vertical jump the knee is partially bent, which means the soleus muscle contributes enormous force production. Many athletes undertrain it.

How to do it

1. Stand on the slant board facing uphill.

2. Bend knees slightly (athletic stance).

3. Raise heels slowly.

4. Pause at the top.

5. Lower under control.

Prescription

• 3–4 sets

• 8–12 reps

• Slow tempo (3 sec down)

Volleyball application

This builds the “spring” in the lower leg used during the final extension phase of the jump.