The level at which your heart, lungs, and muscles work together when you're exercising for an extended period of time. Your lungs and heart are able to better use oxygen. This allows you to exercise for longer periods without getting tired.
Skipping rope or jump rope is a tool used in this exercise where one or more participants jump over a rope swung so that it passes under their feet and over their heads.
Also called an X-trainer, is a stationary exercise machine used to stair climb, walk, or run without causing excessive pressure to the joints, hence decreasing the risk of impact injuries.
Any exercise that causes the muscle to contract against an external resistance with the expectation of increases in strength, power, hypertrophy, and/or endurance
Weighted balls, also known as an exercise ball, a med ball, or a fitness ball, is a weighted ball roughly the diameter of the shoulder (approx 13.7 inches), often used for rehabilitation and strength training
Like a giant rubber bands -- these provide resistance when stretched. They are portable and can be adapted to most workouts. The bands provide continuous resistance throughout a movement