Discipline and Monitoring in Scientific Fitness: Analyzing Exercise Endurance, Effective Load, and the FIT Self-Monitoring System [i]

Exercise is not about intensity, but about consistency[i]. If you want to exercise for 45 minutes every day, you don't have to do it all at once. You can exercise for 15 minutes in the morning and save the remaining half hour for the evening[i]. People who exercise for 30 minutes every day rarely suffer from heart disease[i]. Exercise must be done day after day, consistently[i]. A large-scale population tracking study conducted in California, USA, showed that people who exercised regularly over a long period had a significantly lower incidence of heart disease and other diseases than those who did not exercise[i]. People who exercised consistently for the first 10 years but stopped exercising in the second 10 years were no different in terms of health from those who never exercised[i]. During exercise, the heart rate must reach at least 60% to 85% of the maximum heart rate (220 - age) and be maintained for 30 to 40 minutes to have a metabolic-boosting effect[i]. Exercise for 40 to 60 minutes can significantly reduce weight[i]. Insufficient load will result in insufficient energy consumption and will not achieve the goal of fitness and weight loss[i]. From a calorie expenditure perspective, each workout should ideally burn 300 kcal [i]. The frequency of exercise can vary from person to person, but at least three times a week is recommended, ideally gradually increasing to five times a week [i]. If you stop or interrupt your workout midway, the benefits you have already gained will quickly disappear [i]. To achieve certain fitness benefits, enjoy the workout, and ensure safety, it is essential to monitor your workout [i]. The main monitoring metrics include the frequency, intensity, pulse, and time of the workout, hence the term "FIT monitoring" [i]. Self-monitoring should pay attention to the following: 1. Before exercise, there should be no excessive fatigue, no strong mental stimulation, no diarrhea, and no use of certain blood pressure medications [i]. 2. Choose an appropriate time to exercise [i]. High-intensity exercise should be performed two hours after a meal [i]. 3. Monitor the amount of exercise during workout: The signs of appropriate exercise volume are generally slight sweating, a feeling of ease and enjoyment, and good appetite and sleep after exercise [i]. Excessive sweating, dizziness, chest tightness, shortness of breath, and extreme fatigue after exercise indicate that the exercise intensity was too high [i]. 4. It is essential to understand the intensity of exercise and learn to measure your heart rate [i]. The effective heart rate is between 70% and 80% of your maximum heart rate [i]. A simple calculation for the effective heart rate is 180 (170) - age = effective heart rate [i]. 5. For beginners, shortness of breath, mild abdominal pain, morning soreness, and joint pain may occur during exercise, so the amount of exercise should be reduced [i]. 6. Perform cool-down activities after exercise: Cooling down after exercise is an important measure to accelerate the elimination of metabolic products, speed up physical recovery, and prevent post-exercise discomfort [i]. Cool-down activities include stretching limbs, shaking muscles, and massaging local muscle groups [i]. Showering after exercise is an ideal cool-down method to restore physical strength and promote blood circulation in the limbs [i]. [i]