21s is an exercise technique used to build strength and muscle in the chest. This technique involves performing seven partial repetitions of the exercise, followed by seven full repetitions, and then seven more partial repetitions. This creates a total of 21 repetitions which can help to more effectively target the chest muscles.
How to Perform 21s for Chest
To perform 21s for chest, begin by selecting the exercise you'd like to use. This can include a classic chest press, chest fly, or cable fly. Once you have determined the exercise, take a weight that is challenging but not too heavy.
Start by performing seven partial repetitions. This means you begin the exercise at the bottom of the motion and only raise the weight about halfway up before lowering it back down. Once you have completed the seven partial repetitions, move on to the seven full repetitions.
For the seven full repetitions, you will perform the exercise in its entirety, starting at the bottom and raising the weight all the way up before lowering it back down. After completing the seven full reps, move on to the final seven partial reps. Make sure to keep your form tight and aim for a controlled movement.
Benefits of 21s for Chest
Performing 21s for chest can help to build strength and muscle in the chest. This technique is especially effective because the partial reps target the muscles in a different way than the full reps. Additionally, performing 21s is much more time efficient than performing three sets of seven full reps.