Which of the following is a risk factor that can lead to harm for truck drivers?

Limited physical activity is indeed a significant risk factor for truck drivers. This demographic often spends prolonged periods sitting while driving, which can lead to various health issues such as obesity, cardiovascular disease, and musculoskeletal problems. The sedentary nature of their job reduces opportunities for movement and physical activity, which can have detrimental effects on overall health and well-being.

In contrast, standard work hours, regular exercise breaks, and frequent medical check-ups typically promote better health outcomes. Standard work hours, when adhered to, can help manage fatigue, while regular exercise breaks allow drivers to stretch and engage in physical activity, mitigating some of the risks associated with prolonged sitting. Frequent medical check-ups are essential for monitoring health and catching potential issues early, contributing to maintaining a healthier lifestyle. Thus, these factors are more protective rather than harmful, highlighting the dangers of limited physical activity for truck drivers.