I believe teens definitely are most concerned about muscular strength. They are more worried about that because they want to protect themselves, impress others, sometimes kids just want to bulk up to not look so wimpy, etc.
I would have to say teens are less worried about flexibility because when you have mussels why worry about doing the splits or putting your leg up to your head. One thing will always distract you from the rest.
Answer: "Hey are you doing ok?" "You have been acting not like yourself lately" "Hey, i'm coming over we need to talk" "Do you need help with anything? Seems like you are not doing ok"
Explanation:
Doing stuff they usually like doing, if they do not seem like they're having fun or enjoying it then you can see that something is up and ask what's going on.
Answer:
When we overuse a joint, the bursae become inflamed, resulting in bursitis, a condition in which the bursae lose their function and the movements become painful. Excessive use of some joints can cause bursitis in sports like cycling, tennis, and long-distance running.