Contents:
- Medical Video: Viral Sach: Did the camera person run faster than the winning athlete?
- Why can men run fast but women are slower, even though the business is exactly the same?
- Different levels of estrogen hormones between men and women
- Differences in male and female lung capacity
- Different heart size between men and women
Medical Video: Viral Sach: Did the camera person run faster than the winning athlete?
Running is a cheap sport that can be enjoyed by anyone, from young children to grandparents, women and men. But no matter where you are or what the program is running for, most fast running records are held by men rather than women. Why can men run faster than women, even though their determination, effort and duration of training are equally strong?
The answers to these questions vary, but many are related to differences in hormones and body size between men and women. Here's the explanation.
Why can men run fast but women are slower, even though the business is exactly the same?
Different levels of estrogen hormones between men and women
Muscle strength and running speed are the two main factors that determine how well a person runs. Men in general are able to produce greater strength and speed than women because they have greater muscle mass. Men and women have the same amount of muscle fibers, but men naturally do have a higher level of testosterone which results in a larger size of muscle fiber.
The hormone testosterone has several roles, including in the arrangement for making new blood cells, keeping bones and muscles strong, and encouraging muscle growth. Because women have less testosterone, women will have less muscle mass than men.
Basically, before reaching puberty, the bodies of boys and girls have almost the same testosterone levels. However, testosterone in the body of boys will soar as soon as it's puberty. Adult male testosterone levels can be 20 times more than women.
Doctor Emily Kraus, a sports care doctor at Stanford Health Care, California, said that nearly 80% of adult male feet are made up of muscles, while women are only 60%. This greater muscle mass can help men run faster. In addition, women have more estrogen than men, which causes women to have a higher percentage of body fat than men.
Differences in male and female lung capacity
In addition to muscle mass and hormones, the optimal capacity of the lungs to take and use oxygen can also determine who can run faster.
Women generally have smaller lung sizes than men. This difference in lung size causes the ability of a woman's body to breathe maximum oxygen lower than men. According to a study in medical and science journals in the field of sports, the volume of maximal oxygen consumption in women in normal (silent activity) is about 33 milliliters of oxygen per kilogram of body weight per minute. Meanwhile, a man's lungs can store about 42 milliliters per kilogram of body weight per minute. This means that women must work harder to breathe oxygen in order to meet their muscle needs.
Different heart size between men and women
The heart size of women also tends to be smaller than men, which means women have the ability to pump blood lower than men. This causes less blood to be pumped each time, so that the blood and oxygen sent to the female muscles become less. Women also have less amount of hemoglobin, which is a protein in red blood cells, which binds and carries oxygen to body tissues, including muscles, says doctor Kraus.
Apart from the various reasons above, it is still very impressive that many women out there can compensate for the record of men's sprint even though they are limited by even some of these shortcomings. The world record for men's 100m sprints is 9.58 seconds held by Usain Bolt in 2009, while the women's world record is 10.49 seconds which was confirmed by American Florence Griffith-Joyner in 1988.
