1. Healthy Body Mass Index
Body mass index (BMI) is a measure of approximate body fat on a human’s body either a man or woman based on their height and weight. BMI provides a value that can be used to classify an individual as underweight, normal weight, overweight, or obese based on established cutoff values.
- Underweight if the BMI is less than 18.5
- Healthy Weight range if the BMI is 18.5 to 24.9
- Overweight if BMI is between 25 and 30 Obese if BMI is over 30 is considered obese.
How to calculate BMI?
Body Mass Index is a simple calculation using a person’s height and weight. The formula for calculating Body Mass Index (BMI) is
BMI = kg/m2
Where kg is a person’s weight in kilograms and m2 is their height in meters squared.
Example: Weight = 70 kilograms Height (in meters squared) = 3.0625 BMI = 70 / 3.0625 ≈ 22.85As BMI is a simple calculation based on weight and height and does not take into account the distribution of muscle and fat in the body. The accuracy of BMI can be doubtful and not accurate in a few cases,
- Bodybuilders/Athletes – They have high muscle mass and the formula can show them high BMI but they may not be at health risk.
- Young children – Individuals with a lower muscle mass, such as children or the elderly, may have a lower BMI but they still are at risk.
- Pregnant women – Additionally, a woman’s body composition changes during pregnancy or after pregnancy so using a BMI calculator can be misleading.
2. Increase flexibility
3. Improve cardiovascular function
- A strong heart pumps more blood with each contraction, allowing more oxygen and nutrients delivered to the body’s tissues and organs.
- A stronger heart can pump more blood easily and with less effort, thus force on arteries decreases leading to a normal heart rate and low blood pressure.
- Heart attacks and strokes are mainly caused by a blockage that refrains blood from flowing to the heart or brain. Exercise prevents cardiac diseases, heart attacks, and strokes caused by a blocked artery (Plaque stored in the walls of arteries prevents blood from flowing to the heart or brain).
- Exercise improves the muscle’s ability to extract oxygen from the blood, which reduces the workload on the heart.
What is cardiovascular disease CVD?
Cardiovascular diseases (CVDs) are a general term for a group of heart and blood vessel disorders and are the number one cause of death and disability globally. CVD includes all heart and circulatory diseases, including coronary heart disease, angina, heart attack, congenital heart disease, hypertension, stroke, and vascular dementia.
4. Help in healthy cholesterol levels
- Enhanced Enzyme Activity: Exercise stimulates enzymes in the body that are involved in the metabolism of fats, these enzymes help break down and remove LDL cholesterol from the tissues, including blood vessels.
- Lipoprotein Lipase Activity: Physical activity increases the activity of lipoprotein lipase, an enzyme that helps break down triglycerides and LDL cholesterol. By breaking down LDL cholesterol, the body can clear it from the bloodstream more effectively.
- Improved Fat Utilization: During exercise, the body utilizes stored fats for energy. This process helps to reduce the levels of triglycerides and LDL cholesterol in the blood, creating a favorable environment for the production and action of HDL cholesterol.
5. Type 2 Diabetes
What is Type 1 diabetes?
When an individual body genetically does not produce insulin it is called type 1 diabetes and the reason for non-production can be an autoimmune response that attacks and destroys the insulin-producing cells in the pancreas.
What is Type 2 diabetes?
In type 2 diabetes, the body’s cells become unable to respond to insulin or become resistant to the effects of insulin, which is known as insulin resistance. Simply this means that your body doesn’t use insulin properly and because of that high levels of sugar, or glucose build up and accumulate in the blood.
What is Prediabetes?
This stage is the step before developing type 2 diabetes, a condition where blood sugar levels are higher than normal but not yet high enough to be diagnosed as type 2 diabetes.
Glucose is the main source of energy for the body and is obtained from the foods we eat particularly carbohydrates. Insulin, a hormone produced by the pancreas helps to regulate the levels of glucose in the blood by transporting the glucose in our bloodstream to cells throughout our body, where it’s used for energy.
Research says, “Resistance training and aerobic exercise in combination helped to lower insulin resistance in previously sedentary older adults with abdominal obesity and at risk of diabetes”.
6. Obesity
7. Burns extra calories
8. Anti-inflammatory effect
Two different types of inflammation: Acute and Chronic.
Acute inflammation is a short-term response to minor injuries or illnesses and lasts for a few days. Chronic inflammation is long-term, and systematic, and can cause bigger health issues if not resolved timely.
9. Exercise improves oxygen delivery
“When muscles are working, they can take oxygen out of blood three times more when compared to the muscles that are at rest”.
Normal, healthy oxygen saturation levels are between 95-99% and can be easily measured with a fingertip pulse oximeter. If a person has a low oxygen saturation level, it may indicate a health problem such as lung disease or heart disease.
10. Promotes stress reduction and mood upliftment
11. Enhances stamina
“Stamina measures how long a person can perform the bodily or mental functions without fatigue, a capacity to sustain a prolonged stressful effort or activity.”
- With regular training, the muscles become more efficient in extracting oxygen from the bloodstream, which boosts endurance and delays the onset of fatigue.
- Regular exercise stimulates the growth and proliferation of mitochondria in muscle cells, increasing their energy production capacity.
- Exercise promotes the growth and development of muscle fibers which are highly resistant to fatigue and are essential for sustained, prolonged activity.
- Through regular exercise, the body becomes more proficient in utilizing different fuel sources, such as carbohydrates and fats, to produce energy during exercise.
- The lactate threshold is the point at which lactic acid accumulates in the muscles during intense exercise. Regular training can raise this threshold, enabling the body to tolerate higher levels of lactic acid and sustain higher exercise intensities before fatigue sets in.
12. Tones and firm muscles
13. Improve balance, increase bone density, and strengthen muscles
“Exercise works on the skeletal structure of our body much like it works on muscles.”
- Exercise improves your bone health
- Decreases your risk of bone fracture
- Increases muscle strength, coordination, and balance
- Allows you to stay steadier on your feet
- Reduces joint pain and inflammation
How Bones Get Strong with Exercise?
Because bone is a living tissue, it changes over time in response to the forces placed upon it. Activities that put stress on bones stimulate bone-forming cells by which bones become stronger and adapt to the demands placed on them. When you engage in regular physical activity, your bones undergo a process of adaptation that involves building more bone tissue and increasing bone density. This adaptation is a fundamental response to the mechanical stress placed on your bones during exercise.
Exercise strengthens bones through a process known as bone remodeling which involves a delicate balance between bone resorption (the breakdown of old bone tissue) and bone formation (the creation of new bone tissue).