What is Swimming?
It is My favorite hobby 🏊
Swimming is a popular activity and competitive sport where certain techniques are deployed to move through water. It offers numerous health benefits, such as strengthened cardiovascular health, muscle strength, and increased flexibility. It is suitable for people of all ages and fitness levels.
💧Science
Swimming relies on the nearly neutral buoyancy of the human body. On
average, the body has a relative density of 0.98 compared to water,
which causes the body to float. However, buoyancy varies based on body
composition, lung inflation, muscle and fat content, centre of gravity
and the salinity of the water. Higher levels of body fat and saltier
water both lower the relative density of the body and increase its
buoyancy. Because they tend to have a lower centre of gravity and higher
muscle content, human males find it more difficult to float or be
buoyant.
Since the human body is less dense than water, water can support the
body's weight during swimming. As a result, swimming is "low-impact"
compared to land activities such as running. The density and viscosity
of water also create resistance for objects moving through the water.
Swimming strokes use this resistance to create propulsion, but this same
resistance also generates drag on the body.
💧Purpose
Purpose There are many reasons why people swim, from a recreational pursuit to swimming as a necessary part of a job or other activity. Swimming may also be used to rehabilitate injuries, especially various cardiovascular and muscle injuries. Professional opportunities in swimming range from competitive sports to coaching, lifeguarding, and working in aquatic therapy. Some may be gifted and choose to compete professionally and go on to claim fame.
💧Lessons
Traditionally, children were considered not able to swim independently until 4 years of age, although now infant swimming lessons are recommended to prevent drowning.
- In Sweden, children should learn to swim 200m before grade 5.
- In France, swimming is part of the primary school curriculum.
- The UK has a "Top-ups scheme" for children under 11.
- The U.S. promotes the ISR initiative for infant swimming safety.