Factors Not To Ignore
Body Mass Index (BMI) is a widely accepted calculation to determine if a person is underweight, within healthy limits, or overweight. Among the health risks associated with being overweight are diabetes, heart disease, cancer, and osteoarthritis. Underweight individuals have an increased risk of osteopenia and osteoporosis which increased fracture risk associated with falling. Aerobic exercise such as running generally reduces one’s BMI resulting in overall health and reduced joint forces with each stride. But BMI does not consider a huge component of health which is fitness. Body fat percentage is not factored into BMI. The fact that muscle is more dense and heavier than body fat often skews BMI calculations. Similarly, extremity and core muscle strength is not factored into BMI calculations. The greatest way to decrease joint osteoarthritis and running related overuse injuries is through excellent extremity and core strength. Without adequate extremity and core strength, the joints associated with running are vulnerable to compression and torsion.
Body Mass Index Scale
• BMI of less than 18 means you are under weight.
• BMI of less than indicates you are thin for your height.
• BMI between and indicates you are at a healthy weight.
• BMI between 25 and suggests you are overweight for your height.
• BMI of 30 or greater indicates obesity. If you are obese, consider consulting a doctor or losing weight.
i’m not totally agreeing with that, regarding nike, nike is the biggest retailer, nike’s expenses are covered by budgets in marketing and other expenses,… ok, net margin is small but it’s what they want to show because of taxes… the production cost is interesting to see how lean it should be, after years of sales, why do we spend that big amounts in marketing, and other expenses, it should be reduced and it’s false to say that their profit is low, it’s extra profit…. all salaries and costs are already cut. It will be interesting to see a product launch with 0 marketing, small expenses (like only online) with small price.
Over time your heart adapts and finds it easier to pump out more blood with each stroke, your heart rate comes down, as it doesn't need to beat as often to send the blood around the body, and then running feels easier as your heart is working at a lower rate than it previously did. We can relate this to a car that has a top speed of 120mph. It can maintain a speed of 80mph with much less strain or wear and tear for a longer time than a car which has a top speed of 80mph. The first car is working in its "comfort zone" whereas the second car is working to the limit of its capacity. Through running you can increase the capacity of, not only your heart, but your lungs and muscles which replaces your 600cc engine with a 2L engine and this will help you to run further at a comfortable pace or to run your usual distance faster!