There are also other scientific studies that have demonstrated the same for other muscle groups as well. (fitnessandpower.com)
But focusing on just one type of motion tends to cause some muscle groups to become stronger and tighter at the expense of other muscle groups — leading to injuries. (drhipandknee.com)
There are situations which occur in one specific body area and extend to other muscle groups in different parts of the body. (shrewdmommy.com)