John stretched while his muscles were cold. Which negative effect could occur as a result?

• A. Improved blood circulation
• B. Faster muscle recovery
• C. Increased risk of muscle strain or injury
• D. Enhanced muscle flexibility

Answer: (C)

Verified step by step guidance

1. Understand the context: Stretching cold muscles refers to performing stretches without warming up the body or increasing blood flow to the muscles beforehand. Cold muscles are less pliable and more prone to injury.
2. Review the physiological effects of stretching cold muscles: When muscles are cold, they lack optimal elasticity and are less prepared to handle sudden elongation or strain, increasing the risk of tears or injury.
3. Compare the options provided: Improved blood circulation and enhanced muscle flexibility typically occur after warming up the muscles, not when they are cold. Faster muscle recovery is unrelated to stretching cold muscles.
4. Focus on the correct answer: Increased risk of muscle strain or injury is the most likely negative effect because cold muscles are less prepared to handle the stress of stretching.
5. Conclude the reasoning: To prevent muscle strain or injury, it is recommended to perform a warm-up activity (e.g., light jogging or dynamic movements) to increase blood flow and muscle temperature before stretching.