No; of course not! When you play a sport, whether you lose or win does very little compared to how you play and treat others. If you win, and tell another player they did horrible, or bring them down mentally in any way, you are being a poor sport.
<em>knee is a joint...
knee caps are made up of cartilage ,, so it is connective tissue...
</em>
Since there are no options listed to choose from, my best guess would be watches, since a lot of apple watch products are now sold with built in heart monitors.
It is different because children heal faster than adults. Plus our bones are more grown then there's are