How much stronger is the dominant hand compared to the non-dominant hand?

• A. 5% stronger
• B. 10% stronger
• C. 5% weaker
• D. 10% weaker

Answer: (B)

The dominance of one hand over the other, often referred to as hand dominance, typically results in measurable strength differences. Research indicates that the dominant hand is generally stronger than the non-dominant hand, and studies have shown that this difference commonly falls around 10%. This can be attributed to greater muscle coordination, neural efficiency, and familiarity with the motor tasks executed by the dominant hand.

This 10% strength advantage is significant in various physical activities and can influence performance in sports, manual labor, and everyday tasks. Understanding this difference is crucial in fields such as rehabilitation and sports science, where tailored strength training programs might take hand dominance into account to improve overall performance and balance between the two sides of the body.