Which of the following is an example of resistance exercise?

• A. Walking
• B. Running
• C. Using weights
• D. Playing tennis

Answer: (C)

Resistance exercise refers to physical activities specifically designed to improve strength and endurance by using opposing forces. Using weights is a classic form of resistance training, as it involves applying load to the muscles, which helps them to adapt and increase in strength over time. When lifting weights, the body works against gravity or the resistance provided by the weights, which promotes muscle growth and improves overall physical fitness.

The other activities listed—walking, running, and playing tennis—primarily focus on cardiovascular endurance and agility rather than directly challenging the muscles against resistance. While they do provide health benefits and can contribute to overall fitness, they do not meet the criteria for resistance exercise. Therefore, using weights stands out as the clear example of resistance training in this context.