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What constant speed did subjects walk at during the study to ensure comfort for unfit individuals?

  1. 2.0 miles per hour

  2. 2.5 miles per hour

  3. 3.0 miles per hour

  4. 3.5 miles per hour

The correct answer is: 2.5 miles per hour

The study identified a walking speed of 2.5 miles per hour as the optimal pace for unfit individuals to ensure comfort. This speed is generally recognized as a moderate pace that is achievable for most people, including those who may not be accustomed to regular physical activity. It allows participants to engage in physical exercise without excessive strain, promoting adherence to the activity while minimizing the risk of injury or discomfort. Choosing a speed that is too high can lead to fatigue and discourage participation, particularly among those who are unfit or new to exercise. Thus, the 2.5 miles per hour pace strikes a balance, facilitating an effective workout while also ensuring that it remains accessible and comfortable for those with lower fitness levels. This approach aligns with guidelines for introducing physical activity to new participants, emphasizing gradual progression to build confidence and endurance.