Search results
Results From The WOW.Com Content Network
Hyperextension (exercise) A back extension is an exercise that works the lower back as well as the mid and upper back, specifically the Erector spinae. Each of us have two Erector spinae muscles, one of either side of the spine that run along the entire length of the spine. Erector spinae muscles are actually formed of three smaller muscles ...
The leg extension is a resistance weight training exercise that targets the quadriceps muscle (m. quadriceps femoris) [ 1] in the legs. The exercise is done using a machine called the Leg Extension Machine. There are various manufacturers of these machines and each one is slightly different. Most gym and weight rooms will have the machine in ...
Extension is the opposite of flexion, a straightening movement that increases the angle between body parts. [12] For example, when standing up, the knees are extended. When a joint can move forward and backward, such as the neck and trunk, extension is movement in the posterior direction. [ 10 ]
Strength training, also known as weight training or resistance training, involves the performance of physical exercises that are designed to improve strength and endurance. It is often associated with the lifting of weights. It can also incorporate a variety of training techniques such as bodyweight exercises, isometrics, and plyometrics.
An extensional definition gives meaning to a term by specifying its extension, that is, every object that falls under the definition of the term in question.. Forget example, an extensional definition of the term "nation of the world" might be given by listing all of the nations of the world, or by giving some other means of recognizing the members of the corresponding class.
Plyometrics, also known as jump training or plyos, are exercises in which muscles exert maximum force in short intervals of time, with the goal of increasing power (speed-strength). This training focuses on learning to move from a muscle extension to a contraction in a rapid or "explosive" manner, such as in specialized repeated jumping. [ 1]
Leg extension machine. The leg extension is performed while seated by raising a weight out in front of the body with the feet. It is an isolation exercise for the quadriceps. Overtraining can cause patellar tendinitis. [4] The legs extension serves to also strengthen the muscles around the knees and is an exercise that is preferred by physical ...
Squat (exercise) A squat is a strength exercise in which the trainee lowers their hips from a standing position and then stands back up. During the descent, the hip and knee joints flex while the ankle joint dorsiflexes; conversely the hip and knee joints extend and the ankle joint plantarflexes when standing up. Squats also help the hip muscles.