Bicep curls are among the most popular weight training exercises and for good reason. Your biceps are a highly visible muscle and keeping them lean and muscular can have a big impact. When someone admires your well-toned arms, they presume your entire body is the same.
Although the biceps are the target muscle of these curls, this exercise also works the shoulder and upper back muscles. Working all of these muscles together as one unit allows you to build the muscles evenly and avoid injury due to a weaker muscle group.
Typically, most of us have a stronger arm or side of the body. By working the body with independent dumbbells, the muscle balance can stay consistent.
In most cases, you should try and use enough weight that you can perform 10-12 repetitions. You should be lifting a weight heavy enough that you feel a little fatigue during the last couple of reps.
Make sure that you don't try and use so much weight that you have to move your body around to finish all of your reps. That will diminish the quality of the exercise and could also cause injury.
If you want to become a proficient runner, you need to do more than just run. Upper body strength is an essential part of any successful running program. Runners tend to focus on the cardio and typically stay away from any strength training.
Upper body exercises like curls help the runner's swinging arm motions that generate forward momentum. By adding strength training exercises like curls to your training plan, you will strengthen your muscles and joints which can improve your times and cut down on injury risk.
Research shows that lifting weights helps to increase your lean muscle mass and decrease your percentage of body fat. Strengthening the upper body with exercises like bicep curls will improve your balance and coordination. It will be a confidence builder.
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