The heat required to convert water at. boiling point to steam at the same. temperature is called âlatent heat.â The. unit of heat in common use is the Btu. which is the amount of heat required to. raise the temperature of one pound of. water 1Â°F at atmospheric pressure.
An overuse injury can occur when you take on too much physical activity too quickly.
Here's how. 1. Runner's knee. This is a common overuse injury. Runner's knee has several different causes. It often happens when your kneecap is out of alignment. Over time, the cartilage on your kneecap can wear down. When that happens, you may feel pain around the kneecap, particularly when: 1  Going up or down stairs.