Man body shape is a complex phenomenon with complex details and functions. The general shape or figure of a person is defined primarily by skeletal structure printing, as well as the distribution of muscle and fat. The skeletal structure grows and changes only to the point where man reaches maturity and remains essentially the same for the rest of his life. Growth is usually completed between the ages of 13 and 18, where the time of the epiphyseal plate of long bones is close, allowing no further growth (see the Human Framework).
Video Body shape
Physiology
During puberty, male and female differentiation occurs for reproductive purposes. In adult humans, muscle mass may change due to exercise, and the distribution of fat may change due to hormonal fluctuations. The inherited genes play a large part in the development of body shape.
Facial features
Because of the action of testosterone, men can develop this bone-face feature during puberty:
- A more prominent brow bone (the crossbone in the center of the forehead from around the middle of the eyebrows crossing to the middle of the other)
- Heavier jaws.
- Bigger head size.
- A more prominent chin.
- Bigger nostril. (testosterone thickens the eyebrows and "bridge over the nose")
Because women have about 1/4 the amount of male testosterone, this feature does not develop at the same rate. Therefore the faces of women are generally more similar to those of pre-puberty children.
Skeletal structure
The frame structure frames the overall body shape and does not change much as an adult. Male, on average, higher, but body shape can be analyzed after normalization with respect to height.
Female character
Hip widening occurs as part of the female puberty process, and estrogen (the main sex hormone in women) causes pelvic widening as part of sexual differentiation. Therefore women generally have a wider hip, allowing the birth of a baby. Because the female pelvis is flatter, larger and more proportionally larger, the fetal head may pass during labor. The female's sacrum is shorter and wider, and is also directed toward the back (see figure). This sometimes affects their gait, so the hips sway; The upper limb in women has external angulation (bringing angle) at the elbow level to accommodate the wider pelvis. After puberty, the hip is generally wider than the shoulder. However, not all women adhere to this characteristic pattern of secondary sex stereotypes. Both male and female hormones exist in the human body, and although only one of them is predominant in adults, other hormones have an effect on the body shape to some extent.
Character of men
Shoulder widening occurs as part of the male puberty process. Rib expansion is caused by the effects of testosterone during puberty.
The distribution of fat, muscle and tissue
Body shape is affected by body fat distribution, which correlates with current levels of sex hormones. Muscle and fat distribution may change over time, unlike bone structure, depending on dietary habits, exercise and hormone levels.
Fat distribution
Estrogen causes fat to be stored in the buttocks, thighs and hips in women. When women reach menopause and estrogen produced by the ovaries decreases, fat moves from the buttocks, hips and thighs to their waists. Later fat is stored in the stomach. Thus women generally have a relatively narrow waist and large buttocks, and this along with wide hips makes the wider hip portion and waist-to-hip ratio lower than that of males. Hormonal and genetic factors can produce fat distribution of men in women around the belly, not the buttocks and thighs.
Estrogen increases the storage of fat in the body, which produces more fat stored in the female body. Recommended percentage of body fat is higher for women, because it can serve as an energy reserve for pregnancy. Males have less subcutaneous fat on their face because of the effects of testosterone; testosterone also reduces fat by helping rapid metabolism. Men generally store fat around the waist and abdomen (producing "apple shape") due to lack of estrogen.
Muscle
Testosterone helps build and maintain muscle through exercise. On average, men have about 10 times more testosterone than women. The protruding muscles of the body include latissimus dorsi, trapezius, chest muscles (the muscles that are important for strong upright posture) as well as biceps and triceps in the arms and thighs and hamstrings on the thighs.
Breast
Women have enlarged breasts due to functional milk glands, which develop from puberty and so on due to the effects of estrogen. Mammary glands do not contain muscle tissue. The shape of a woman's breasts is affected by age, genetic factors, and weight.
Weight
Overweight or weight causes changes in the human body as well as posture and walking style. This is measured using Body Mass Index - BMI or waist circumference. Depending on BMI, the body can be called slender, overweight, or obesity.
Diet, in conjunction with exercise, can be used to carry and keep the BMI within a healthy or desirable range.
Fats and carbohydrates in food are most of the energy used by the body. They are measured cumulatively in the US and many other places in calories and kilojoules in some other parts of the world.
Posture and gait
Body shape has an effect on posture and gait, and has a major role in physical attraction. This is because body shape implies a person's hormone levels during puberty, which implies fertility, and it also shows the current levels of sex hormones. A fun form also implies good health and body fitness.
Maps Body shape
Health impact
According to the Heart and Stroke Foundation of Canada, people with larger waist (apple-shaped) have a higher health risk than those who carry excess weight in the hips and thighs (pear-shaped). People with apple-shaped bodies that carry excess weight are at greater risk for high blood pressure, type 2 diabetes and high cholesterol.
Fitness and exercise
Various forms of exercise are practiced for body fitness and also for health. It is common belief that targeted sports reduce fat in certain parts of the body - for example, that exercising the muscles around the abdomen reduces fat in the abdomen. This, however, is now proven to be misunderstood; these exercises can alter body shape by increasing muscle tone but any non-specific fat reduction is localized. Place reduction practices are useless unless you plan the right exercise to lower overall calories. But exercising reduces fat throughout the body, and where fat is stored depends on hormones. Liposuction is an operation commonly used in advanced societies to remove fat from the body.
Social and cultural ideals
The general body shape of both female and male bodies has significant social and cultural symbolism. Physical attractiveness is closely related to the characteristics that are considered typical of both sexes. Body mass index (BMI), waist-to-hip ratio, and especially waist-to-chest ratios in men have been shown in the study to rank as overall more desirable by women. Wide shoulders, muscular upper body and well developed upper arm muscles are all strongly associated with masculinity, as do other male sex, such as beard. These traits seem more sexually attractive to women and are also associated with higher intelligence, better leadership qualities and better health.
Terminology
The female body size classification is based primarily on the circumference of breast-waist-hip (BWH), as in 36-24-36 (inches) each. In this case, the waist-hip ratio is 24/36 = 0.67. Many terms or classifications are used to describe the type of body shape:
- V Shape: Men tend to have smaller butts proportionately, larger chest and shoulders wider, larger latissimus dorsi and small waist that make V-body shape.
- Shape of an hourglass: The female body is significantly narrower at the waist in both the front and profile views. The waist is narrower than the breast area due to the breasts, and is narrower than the hip area due to the width of the buttocks, which results in an hourglass shape.
- Apple: The abdominal area is wider than the hip, especially in males.
- Pears or spoons or bells: The hips are wider than the upper body, especially in women.
- Rectangle or straight or banana: The hips, waist, and shoulders are relatively the same.
See also
- Anthropometry
- Body image
- Body type
- Dad bodys
- Female body shape Human gait (gait etc.)
- Human physical appearance
- Position of man (posture)
- The human framework
- Sex differences in humans
- Sexual dimorphism
- Somatotype and constitutional psychology
References
External links
- Reproductive Anatomy and Physiology
- Instructions for Mystery Physical Attraction Appeal
Source of the article : Wikipedia
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