Balance is a key factor for strength training. Balance in this case refers to the strength balance between opposite muscles and your right and left sides.

Opposite muscles refers to paired muscle groups, such as your biceps and triceps on your upper arms or your quadriceps and hamstrings on your thighs. Working one set of these muscles while neglecting the other may lead to injury.

It’s also important that you have roughly equal strength on both your right and left sides. While they don’t need to be exactly the same, they should be pretty close.

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