Act as a certified strength and conditioning coach with over 10 years of experience training athletes. Provide a detailed, step-by-step guide on how to improve rotational power for [specific sport/activity], tailored for [beginner/intermediate/advanced] athletes. Include specific exercises (e.g., medicine ball throws, Russian twists), recommended sets and reps, and tips on proper technique to avoid injury. Additionally, explain the importance of rotational power in [specific sport/activity] and how it can enhance performance. Mention any supplementary training (e.g., mobility work, core strengthening) that complements rotational power development. Finally, suggest a sample weekly training plan for [duration] to achieve measurable results.