Well, if your problem is serious, then you most likely won't be able to get the pain gone without professional help. However, if it's mild, then ice, rest, and maybe even some sort of brace would help relieve the pain. Avoid squatting and bending.
Please state why your knees hurt? Is it an injury? Is it arthritis? It makes a huge difference, so please rephrase your question.
As long as you keep their head above your knees, it won't hurt them.
Your question ... the way you wrote it ... really doesn't make sense. I think you meant the second choice to be "legs straight and knees locked". That configuration is more likely to hurt you, because your knees can't absorb any of the impact, and the shock is transmitted up into your hips and spine.
Using a recumbent bike may hurt your knees if the seat and pedals are not properly adjusted to fit your body, causing strain on your knees. It is important to ensure that the bike is set up correctly to prevent knee pain.
An abdominal injury or a variety of medical problems. Please go to the doctor.
Maintain cervical-spine position. Sit on your knees behind the person's head, and with your elbows either on the ground or on your knees, firmly hold the person's head so it cannot move.
Yes
its fun but ur worn out after and knees hurt
because when u run for a long time the nerves start getting over active and they hurt
When squatting, your knees should not bend past a 90-degree angle to prevent strain and injury.
The main problem is injury. Lots of netballers get injuries - especially in the knees.
For very flexible people,no for beginners yes. its all about the bone. beginners dont have flexible knees but flexible people do and it is fine for your knees to hurt. mine do when i do a middle split cause im good at the regular split so its perfectlly normal!