With the bicep curl, the concentric (work) phase occurs when the dumbbell is raised towards the shoulders, and the eccentric phase is when the dumbbell is lowered back down.
What is the eccentric part of a bicep curl?
Think of it in terms of lifting a weight, such as in a bicep curl. Whenever you curl the dumbbell you’re performing a concentric movement and the bicep muscle shortens. Conversely, when you lower the dumbbell back down to your side, you’re performing an eccentric movement and the bicep muscle lengthens.
Is a bicep curl eccentric or concentric?
A concentric movement happens when your muscles contract, while an eccentric movement occurs when the muscle lengthens. The best example of both concentric and eccentric movements is the biceps curl. When you curl your arm up toward your shoulder, your arm muscles contract (a concentric movement).
What is the eccentric phase?
Finally, the eccentric phase is the portion following the isometric phase, in which the muscle is lengthened under load to return to its starting position. Eccentric training focuses on this last portion of the movement, making it more challenging by slowing down the cadence, or speed, of the eccentric phase.
What is the eccentric phase of lifting?
As a review, the eccentric phase of a lift occurs when a muscle contracts while lengthening. This is the down motion of the bench press, biceps curl, or squat. The concentric phase of a lift occurs when a muscle contracts and shortens, as in the up motion of the bench press, biceps curl, or squat.
How do you do eccentric curls?
Youtube quote: From sidon it looks as follows. Just take your time really squeeze the biceps. Don't do this please. So it's not like one second up throw your back out and slow on the way down.
What is an eccentric muscle contraction?
Introduction. An eccentric (lengthening) muscle contraction occurs when a force applied to the muscle exceeds the momentary force produced by the muscle itself, resulting in the forced lengthening of the muscle-tendon system while contracting (Lindstedt et al., 2001).
What is eccentric vs concentric contraction?
In a concentric contraction, the muscle tension rises to meet the resistance then remains stable as the muscle shortens. During eccentric contraction, the muscle lengthens as the resistance becomes greater than the force the muscle is producing.
Is a bicep curl flexion or extension?
Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes when performing a biceps curl. Extension – straightening a joint.
What are eccentric reps?
Eccentric training, also known as the performance of negative reps, is a term used to describe the period of a muscle contraction when the muscle is transitioning from a shortened to a lengthened position.
What is eccentric and concentric phase?
Concentric and eccentric are also terms used to describe the phase of a movement. The concentric phase is the phase of the movement that is overcoming gravity or load, while the eccentric phase is the phase resisting gravity or load.
What is the eccentric phase of a bench press?
The bench press has two phases: eccentric and concentric. The first phase, as you lower weight toward your chest, is called the eccentric, or muscle-lengthening motion. The second phase, as you raise the weight back up, is called the concentric, or muscle-shortening phase.
What type of contraction is a bicep curl?
Isometric contraction occurs when muscle length remains relatively constant as tension is produced. For example, during a biceps curl, holding the dumbbell in a constant/static position rather than actively raising or lowering it is an example of isometric contraction.
What is the eccentric part of an overhead press?
This type of contraction typically results from lowering the weight. In the shoulder press, the eccentric motion occurs as you’re descending back to the starting position. As with most weight training activities, lower the weight slowly and under control when you’re performing the shoulder press.
Why is the eccentric phase the strongest?
In fact, eccentric contractions actually absorb (mechanical) energy, which is then used as heat, or elastic recoil for the next movement. This powerful training phenomenon translates into more endurance, which builds more strength, and therefore more power.
What is an example of eccentric?
An example of eccentric is the orbit of Mercury. Eccentric is defined as someone or something that is different or behaves in an unconventional way. An example of eccentric is an adult wearing footy pajamas to a formal dinner.
What is an example of an eccentric motion?
Movements that employ eccentric contractions include walking down stairs, running downhill, lowering weights, and the downward motion of squats, push-ups or pull-ups.