Say you wake up in Vail and itâs snowing hard. If the temperature at the base is 20Â°F and the summit is about 3,000 feet higher, then you could estimate the temperature at the top would be about 10Â°F (3,000 feet elevation change at 3.3Â°F per 1,000 feet equals about 10Â°F temperature decrease).
Crepitus is the medical term for cracking or popping sound in a joint such as the knee. Learn about crepitus pain symptoms and treatment in this article.
Chondromalcia patella (patellofemoral pain syndrome) is a dull ache behind the kneecap (patella), usually caused by overuse or injury. You can feel and hear a painful crunching and grating when the knee is moved. Other knee injuries or types of arthritis can also cause crepitus.