Suggestion: If the calf muscles are strong, you should avoid inertia and strength exercises such as running, climbing mountains and skipping rope, and do more stretching exercises. You can do more exercises such as leg press and leg padding. For the purpose of stretching tendons, mainly the tendons on the back, medial and lateral thighs. Tendons passing through the knee fossa on the back are most effective for the calf. Don't press them with external force or brute force, but stretch in a relaxed and adaptive state.