Lipids, a chemical family that includes cholesterol and fat, make up a major part of the average human diet. At 9 calories per gram -- compared to 4 calories per gram of carbohydrates and proteins -- fats serve as concentrated sources of energy to fuel your active lifestyle.
The Development of Rowing Equipment By Bill Miller This page contains information about the development of rowing equipment beginning about the end of the 18th century.
A rowing fitness machine allows for a low-impact workout. It not only offers an intense cardiovascular workout, but also works to target and tone numerous muscles. According to the American College of Sports Medicine (ACSM), rowing is a mode of exercise that involves both the upper- and lower-body muscles.