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Introduction - Conquering Obesity

Height-Weight Relationship

Proper Weight-Loss Diet Plan

Proper Weight-Loss Diet

Exercise and Obesity

Weight-Loss Lifestyle

Overcoming Obesity - Summary

Overcoming Obesity Appendix

Obesity - The Height-Weight Relationship

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Physical health can be measured through the appropriateness of a person's weight to his height; where the body weight refers to the measure of one's heaviness, and the height is the measure of his tallness.

For instance, a woman measuring 5 ft high (1.52 m), with a medium body frame should weigh between 103 lbs. to 115 lbs. (46.72 kg - 52.16 kg) to be considered healthy. Another example: a man standing 5 ft 8 in (1.72 m) tall, with a large body frame is healthy if he is weighing between 144 lbs. - 163 lbs. (65.32 kg - 73.94 kg). Otherwise, if their weight is lower than the desired body weight for their height, they are considered underweight, and if, in turn, their weight is higher than the desired body weight for their height, they are said to be overweight.

Body Mass Index is an accurate indicator of surplus body fat than kilos or pounds. It is a mathematical ratio of height to weight that can be linked with body composition (or body fat percentage) and with indices of health risk. Calculating BMI is as follows:
 

            BMI = Weight (in kg)            or             BMI = Weight (in lbs) x 700                         Height (in m)2                                          Height (in inches)2

For example, the calculation for someone weighing 80 kg (176 lbs.) and 1.60 m (63 in) tall is:
   

            BMI =   80     =  31.2                 or             BMI = 176 x 700 = 31.1                         1602                                                                  632


People with a BMI of 25.1 to 29.9 are considered overweight, and people with a BMI of 30 or above are considered obese. Thus, from the example above, a person weighing 80 kg and is 1.60 m tall is obese. A high BMI assumes a higher percentage of body fat, which places a person at greater risk for developing chronic diseases and other serious illnesses.

BMI Weight Category
Under 19  Underweight
20-25 Normal (Healthy)
26-30 Overweight
30 above Obese

Table 1.1 Body weight categories according to BMI

However, for some people, the BMI is not a reliable indication of health. A highly muscled individual who is very fit and healthy may have a somewhat heavy body weight because muscles pack on a lot of pounds. This person may have a high BMI that improperly puts him or her in the overweight or obese categories. Likewise, thin individuals who have a low body weight with very little muscle and a higher percentage of fat may have a normal BMI, which would be an incorrect indication of healthiness.

Obesity is defined as being 20 percent or more above one's desirable weight range (See appendix A again for reference). It is a medical condition that refers mainly to storage of excess body fat. The human body naturally stores fat tissue under the skin and around organs and joints. Fat is critical for good health because it is a source of energy when the body lacks natural energy necessary to sustain life processes, and it provides insulation and protection for internal organs. But the accumulation of too much fat in the body is associated with a variety of health problems.
Causes

A calorie is the unit used to measure the energy value of food and the energy used by the body to maintain normal functions. When the calories from food intake equal the calories of energy the body uses, weight remains constant. But when more calories are eaten than the body needs, the body stores those additional calories as fat, causing subsequent weight gain. One pound (1 lb.) of fat represents about 3,500 excess calories.

Obesity is partially determined by a person's genetic makeup. If a child inherited the excessive body fat cells of his obese parents, more likely, he will tend to eat more than his body needs; thus, making him an obese too. Copying poor eating habits of parents also affects a child's body weight.

Lifestyles also play a key role in the triggering obesity. Eating big servings of food at restaurants and fast foods more frequently than nutritious home-cooked foods could help adding more calories and fats rather than limiting them. Devoting less time for exercise and other physical activities do not control weight gain. And doing untiring recreational activities such as browsing the internet, video games, movies, and television, plus using laborsaving devices of the modern living, such as personal computers, telephones, and remote controls, promote an inactive lifestyle.

Effects and Possible Complications of Obesity

Obesity increases the risk of developing disease. Possible complications include:

·    Heart disease
·    High blood pressure
·    Cancer
·    Diabetes
·    Gallbladder disease
·    Breathing problems
·    Bloating and stomach upsets
·    Varicose veins
·    Severe psychological problems

In fact, according to some studies, almost 70 percent of heart disease cases in the United States are linked to excess body fat, and obese people are more than twice as likely to develop high blood pressure. Obese women are at nearly twice the risk for developing breast cancer, and all obese people have an estimated 42 percent higher chance of developing colon cancer. Almost 80 percent of patients with Type 2, or non-insulin-dependent diabetes mellitus are obese. The risk of medical complications, particularly heart disease, increases when body fat is distributed around the waist, especially in the abdomen. This type of upper body fat distribution is more common in men than in women.

The social and psychological problems experienced by obese people are also challenging. Discrimination for "fat" people is most likely to occur in educational institutions, employment, and social relationships. Other psychological effects include stress, nervous tension, boredom, frustration, lack of friends, depression, inferiority complex, and poor self-esteem.

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