Is treadmill 4.2 fast walking

The speed of treadmill 4.2 usually belongs to the category of brisk walking. The speed range for brisk walking is generally between 4 and 6 kilometers per hour, with a speed of 4.2 approaching the lower limit of brisk walking, making it suitable for most healthy individuals to engage in low-intensity aerobic exercise. When the treadmill speed is set to 4.2, the step frequency and stride will be significantly higher than those of daily walking, but it has not yet reached the aerial stage required for jogging. At this speed, the increase in heart rate is moderate, which can effectively promote blood circulation and heat consumption, while reducing the impact on the knee joint. For people with a large body weight or joint sensitivity, this speed can ensure both exercise effectiveness and relatively low safety risks. During exercise, keep your body slightly forward and swing your arms naturally to enhance energy consumption. Some people with good physical fitness may feel that the 4.2 speed intensity is insufficient, which is more common in those with long-term exercise habits. After the body adapts to the appropriate speed, the heart rate during exercise may not be able to sustain within the effective fat burning range. At this point, you can consider increasing the speed to around 5 or increasing the intensity by adjusting the slope of the treadmill. But when trying to speed up for the first time, one should closely observe the cardiopulmonary response to avoid sudden increase in load causing discomfort. When using a treadmill for brisk walking exercise, it is recommended to use a fitness bracelet to monitor real-time heart rate and control it at around 60% of the maximum heart rate. Adequate warm-up and stretching should be done before and after exercise, with special attention paid to the movement of the ankle and hip joints. Choose sports shoes with cushioning function to avoid prolonged brisk walking on hard soled shoes. Regular exercise for at least 30 minutes at least 4 times a week, combined with dietary control, can achieve better weight loss results. Middle aged and elderly exercisers should pay attention to replenishing water, and stop exercising immediately if they experience dizziness or joint pain.