What happens during a warmup?

What happens during a warmup?

• A. Sleepiness
• B. increased body temperature
• C. Dehydration
• D. Muscle atrophy

Answer: (B)

During a warmup, body temperature rises, including both core and muscle temperature. This warming accelerates chemical reactions in muscles, improves nerve conduction and muscular contractility, and increases blood flow to active tissues. The result is muscles that are more pliable and joints that are better lubricated, which helps you move more efficiently and reduces the risk of injury. Sleepiness isn’t a typical effect of warming up; in fact, a warmup tends to help you feel more alert and prepared. Dehydration isn’t caused by the warmup itself—though sweating can contribute if fluids aren’t replaced. Muscle atrophy is a long-term condition related to disuse, not a direct result of warming up.

During a warmup, body temperature rises, including both core and muscle temperature. This warming accelerates chemical reactions in muscles, improves nerve conduction and muscular contractility, and increases blood flow to active tissues. The result is muscles that are more pliable and joints that are better lubricated, which helps you move more efficiently and reduces the risk of injury.

Sleepiness isn’t a typical effect of warming up; in fact, a warmup tends to help you feel more alert and prepared. Dehydration isn’t caused by the warmup itself—though sweating can contribute if fluids aren’t replaced. Muscle atrophy is a long-term condition related to disuse, not a direct result of warming up.