To answer the question......
Also the strokes have changed, very few swimmers swim sidestroke or old
English backstroke and butterfly was introduced as stroke when breast strokes swimmers started raising their arms out of the water on the recovery part of the stroke. not seen anyone do the dog paddle for a long time!
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swim suits have become tight so that it causes less drag.
there are now some technologies that have a monitor on the back of the swimming hats to see how swimmers are doing in there training.
in races once you have finished there is an electronic mat against the wall when you have finished you push it and it times you and said if you have won or not.
they have added swimming hats to the equipment.
they have a monitored swimming pool instead of a lake they shows the temperature of the swimming area.
There are many changes, particularly in the recent past. Some examples from the last 10-20 years include:
- Allowing backstroke to breastroke flip turns in individual medley events. Previously, only a touch-turn was allowed.
- Changing the rules regarding non-textile swimsuits (currently men are permitted suits from hips to knees and women from shoulders to knees). Previously, full body suits were premitted.
- When swimming breastroke, swimmers are now allowed one butterfly kick underwater after the dive and also off of the walls. So swimmers now take one stroke followed by a butterfly kick and then a breastroke kick. Previously, butterfly kicking was entirely forbidden when swimming breastroke.
- Underwater kicking is now limited to 15 meters off the blocks and off of the walls. Previously, there was no limit. For a brief period, after it was discovered that underwater butterfly kicking in a streamlined position was actually faster than swimming butterfly or backstroke, swimmers would try to swim as far as they could underwater. Some swimmers even swam practically to the end of 25 meter pools. However, FINA eventually saw this as "gaming" the system and set the underwater limit at 15 meters. So now there are red markers on the lane lines (and often marks on the pool floor) at the 15 meter points.
- This is not a rule change but, rather, a preference change: swimmers now use butterfly kick underwater instead of flutter kick in freestyle events.
There are many other changes that have taken effect over the years, but these are some of the more recent and prominent ones.
my name is karlenenah glenn and i love to swim i know every thing about swiimming from top to bottom. ok swimming was developed by a man named moog weissmuller.
Swimming has changed a lot. Swimming strokes have become more efficient and faster. Also, swim wear has changes and evolved a lot too.
Back in the olden days people had to swim naked because they had not invented swimsuits