Final answer:
The most fatal injuries related to exercise and physical activity are head and traumatic brain injuries, which can lead to death and are frequently caused by falls. Appropriate safety measures and proper conditioning can prevent such injuries. Overexertion and risky behaviors also increase the risk of muscle and joint injuries.
Step-by-step explanation:
The most fatal INJURIES associated with physical activity and exercise are those involving the skeletal system, particularly head and traumatic brain injuries. These types of injuries can lead to immediate death and disability and are often caused by falls, especially among certain age groups such as young children (ages 0-4 years), adolescents (ages 15-19 years), and the elderly (over 65 years). In addition to falls, these head injuries can result from automobile and motorcycle accidents. When they occur, these injuries can lead to bleeding, infections, and fractures such as linear, comminuted, depressed, or contrecoup fractures. Beyond head injuries, too much exercise without proper rest can result in muscle and joint injuries, and risky behaviors in certain sports can increase the likelihood of experiencing an injury.
Preventing these fatal injuries can sometimes be achieved by using appropriate safety equipment, warming up, cooling down, and stretching before and after physical activities. Injuries related to environmental factors like extreme heat, cold, storms, and floods can also be deadly but are generally not directly linked to exercise or physical activity.