PetitEspoir
Irised
I think I can help you with the first one. I used to sprain my ankles continuously, and I finally had to go to physical therapy for them. I found that the exercises they gave me were extremely helpful in strengthening my ankles and making them less prone to sprains. I also found that a lot of them toned my calves. This makes sense because the muscle (the gastrocnemius) of your calf actually controls your ankle too. The Achilles tendon, which attaches to the back of your heel and helps you to point and flex your foot, is part of that muscle). Though I don't know of many knee exercises, I would think that if you worked your front and back leg muscles in opposition, that it would have to strengthen the muscles of your knees.
I would say that, below the waist, any exercise that focuses on using your body weight to fight gravity would help with strength. So things like toe raises, and getting your heels off the ground (basically lifting your entire body on to the balls of your feet) would help to strengthen them. If you can, try using ankle weights...
If you want, I can do some research for you. I hope this has been helpful : )
This is great, thank you!! Really good information.
No problem. Glad I could be helpful ^_^; <3
Since the body has sets of muscles to flex and point, strain or relax almost every corner of it self, if you can find exercise (perhaps like yoga) that work both the front and the back of your body, that you could strengthen almost every muscle in your body if you wanted to (like Cat and Dog back poses in yoga).
For instance, if you wanted back exercises, you could find core exercises that worked in opposition with the muscles of your back, and vice versa. In fact, that is what is recommended, if I'm not mistaken-- you're supposed to work the opposing muscle groups so that there's no instability or one group doesn't become stronger than the other.
I'm sure you could think of some movements, that aren't even necessarily considered to be real 'exercises' that would help to strengthen certain muscle groups.
Other than that, I have heard that Pilates is excellent for strength.