Absolutely not, they only work to strengthen the muscles around them. The squat has been given a bad name by people who have done it incorrectly. Squatting below parallel is not only not bad for your knees, but crucial to gaining a full range of motion.
split squats
Doing squats can help your knees, but it depends on how much weight you are carrying when lifting whether its hard on them or not.
If you do them incorrectly
It is important when doing exercises such as deadlift or squat to always keep what is called a "neutral" back. This is when you arch your back. If you do this, you do not have to worry so much about bending your knees. Yes, the "experts" tell us to keep the torso straight up and bend the knees when lifting but the true secret is to keep a neutral back to avoid back injuries--it doesn't matter if you stay straight up or not as long as your back is arched back.
As you cannot do squats, the next best is kickbacks. If these also give you problems then simple squeeze-hold repeated routines will help.
Doggy style which is when the girl gets on her hands and knees and the boy stands on his knees or squats and humps.
Squats are an exercise position in which a person's knees are bent and the thigh and buttocks are close to touching the heels of the feet. This particular exercise works out the butt and thighs.
Not necessarily. Of course, if you exercise improperly (such as bouncing at the bottom of a squat, in my opinion) you may injure your knees. Even assuming that you exercise properly, after several decades of training your knees may hurt a bit during exercise. This does not happen to everyone. If you always warm up properly and use perfect exercise technique, it may never happen to you. Exercise selection, too, is important. For example, it is a good idea never to do heavy leg raises because they really stress the knees. Even if your knees eventually hurt during training, there may be ways to work around it. For example, if regular back squats hurt your knees, switch to box squats. Box squats are much more difficult, which means that you will use less weight; using less weight means less stress on your knees.
Box squats, front squats, back squats, and leg presses are a few alternatives to lunges.
You can it would be a good idea that way you are working not only you bicepts but your hamstrings as well. However you have to make sure that you do your squats correctly or else you can damage your knees.
On his or her back with their knees flexed
It depends on how you are doing them. The proper was to do them is as follows: From a standing position, move your hips back and bend your knees and hips to lower the torso. Then return to upright position. The addition of weight or weights is common.