--- title: Moving, swimming and sport — a lesson of Mova's school · trees and pragmatics description: «Moving, swimming and sport», a lesson of the myths course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: The beach, a hot day, a packed lunch, and Grandma checking her watch: "Not one toe in the sea for a whole HOUR after eating, or you'll get cramp --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Myths](https://md.mova.elamur.ai/free/en/corpora/school/myths/) / Moving, swimming and sport # Moving, swimming and sport Lesson 5 of the myths course of Mova's primary school: 16 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/myths/5-moving-swimming-and-sport/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/0/) — The beach, a hot day, a packed lunch, and Grandma checking her watch: "Not one toe in the sea for a whole HOUR after eating, or you'll get cramp and sink like a stone!" - [1](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/1/) — Sport is full of rules like that, passed from coach to coach and gran to gran: crack your knuckles and you'll get arthritis (sore, stiff joints), stretch for ages or you'll snap something, no pain, no gain. - [2](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/2/) — Some came from old leaflets, some from adverts, and some from things that happen at the same time and look like cause and effect: a man stops training, loses muscle and gains fat, so people say his muscle "turned into" fat. - [3](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/3/) — Scientists have tested many of them, and one doctor even cracked the knuckles of only one hand for sixty years to find out; the knuckles on both hands came out the same. - [4](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/4/) — What really keeps you safe is plainer: warm up by moving, stop when pain is sharp, drink when thirsty, swim where it is supervised, and if cramp grabs you in the water, float on your back and shout. - [5](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/5/) — There is no evidence that eating before swimming makes people drown; the real dangers are deep or cold water and swimming with nobody watching. - [6](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/6/) — The pop when you crack your knuckles comes from gas bubbles in the fluid of the joint; a doctor who cracked one hand's knuckles for over sixty years found no arthritis difference between his hands. - [7](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/7/) — Long, still stretches before exercise don't prevent most injuries; a gentle warm-up of moving and jogging is better. - [8](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/8/) — Muscle and fat are different kinds of tissue, so one cannot turn into the other; muscle can shrink while fat grows at the same time. - [9](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/9/) — You cannot burn fat from one spot by exercising that spot; sit-ups make tummy muscles stronger but do not melt tummy fat. - [10](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/10/) — Tiredness and effort during sport are normal, but sharp pain is a signal to stop, because pushing on can cause injury. - [11](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/11/) — How much water you need depends on your size, the weather and how active you are; food and other drinks count too, so "exactly eight glasses" is a rough guess. - [12](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/12/) — If you get cramp in the water, you can float on your back, stretch the muscle and call for help; staying calm is the key. - [13](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/13/) — For ordinary children's games, water is enough; sports drinks add sugar and help mainly in long, hard exercise; adverts with famous players are made to sell drinks, not to test them. - [14](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/14/) — Waking a sleepwalker will not kill them, though they may be confused; it is best to guide them gently back to bed. - [15](https://md.mova.elamur.ai/free/en/corpora/school/myths/5-moving-swimming-and-sport/15/) — Advice in sport changes as scientists test old ideas, so a rule that was normal thirty years ago may be dropped today. - ← previous: [Colds, coughs and the weather](https://md.mova.elamur.ai/free/en/corpora/school/myths/4-colds-coughs-and-the-weather/) - next →: [Growing, skin, hair and food](https://md.mova.elamur.ai/free/en/corpora/school/myths/6-growing-skin-hair-and-food/) - ↑ back to [Myths](https://md.mova.elamur.ai/free/en/corpora/school/myths/)