Which of the following is a sign of good physical fitness?

Being able to perform daily activities without fatigue is a strong indicator of good physical fitness. This suggests that an individual has sufficient cardiovascular endurance, muscular strength, flexibility, and overall stamina to handle routine tasks effectively. When a person is fit, their body is more efficient at using oxygen during activities, which helps prevent fatigue during even moderate physical exertion.

In contrast, frequent fatigue and an increased heart rate at rest signify potential health issues or a lack of fitness, as these conditions can indicate that the body is not functioning optimally. Frequent injuries suggest that a person may be overexerting themselves or engaging in unsafe physical activity, which can also serve as a warning sign of poor physical fitness or inadequate conditioning. Therefore, the ability to manage daily tasks without fatigue is the hallmark of a well-conditioned and physically fit individual.