Heather O. Chambliss PhD FACSM


Fitness Machines

Many people choose to exercise with fitness machines such as treadmills, stair-climbers, stationary bicycles, and cross-country skiing machines. These all offer aerobic conditioning and may also strengthen muscles. Fitness machines can be great for exercising when the weather is bad or days are short. You may also like…

Overtraining

People who are very physically active sometimes cross the line between sufficient training and too much training. Overtraining usually occurs when the body does not have enough time to recover from the stress of intense training. Signs of overtraining include the following: You constantly feel tired or listless. You…

The Three Kinds of Fitness

There are three kinds of fitness: Aerobic fitness. Aerobic activities condition your heart and lungs. Aerobic means “with oxygen.” The purpose of aerobic conditioning is to increase the amount of oxygen that is delivered to your muscles, which allows them to work longer. Any activity that raises your heart rate and…

Overuse Injuries

Overuse injuries occur from stressing your joints, muscles, or other tissues without allowing them to recover. For example, throwing a baseball at high speeds over and over can stress your shoulder joint and cause an injury to part of that joint (the rotator cuff ). Stress fractures, in which a bone breaks from the…

Pulse (Heart Rate)

Pulse is the regular expansion of the arteries caused by the surge of blood that occurs each time the heart beats (contracts). It can be felt by gently pressing the fingers on certain blood vessels that are close to the skin’s surface. Pulse is also called heart rate, which is the number of times the heart beats per…