Which practice best supports sustainment by challenging the non-dominant side?

• A. Incorporate weak-side training.
• B. Avoid non-dominant drills.
• C. Limit drills to warm-ups.
• D. Remove belt progression from drills.

Answer: (A)

Challenging the non-dominant side through weak-side training keeps skills fresh and reliable over time. When you regularly work the opposite side, the nervous system learns new ways to move, improves balance and proprioception, and strengthens motor patterns beyond what you can achieve by focusing only on the dominant side. This makes the overall skill set more robust, so performance doesn’t fade when the dominant side is tired, under pressure, or temporarily unavailable.

If you avoid non-dominant drills, you risk developing a lopsided capability that can crumble under stress or in unfamiliar situations. Limiting drills to warm-ups doesn’t provide enough deliberate, targeted practice to build lasting motor memory for the non-dominant side. Removing belt progression from drills reduces motivation and progressive challenge, which are important for sustained improvement, and it doesn’t directly address keeping both sides sharp. Incorporating weak-side training directly supports sustainment by maintaining balanced capability across both sides.