Too much stress -- or too many fastballs -- can cause partial tears and swelling in the tendons of the rotator cuff. Abrupt stress may even cause one of the tendons to pull away from the bone or tear in the middle of the tendon.o diagnose a rotator cuff tear, your doctor will give you a thorough physical exam. He or she will want you to move your arm in different directions to see what causes pain. In addition, your doctor might want to order the following tests: 1  X-ray of the shoulder with some special views.
In rare cases, generalized muscle weakness may be caused by another health problem, such as: 1  A problem with the minerals (electrolytes) found naturally in the body, such as low levels of potassium or sodium. 2  Infections, such as a urinary tract infection or a respiratory infection.
If your question is can stroke cause weakness is one leg and no other body parts on that side, the answer again is probably not.. Usually, a stroke causes weakness to the entire side of the body, from the face to the toes. Everyone should know the symptoms of stroke because stroke is an emergency that requires prompt treatment. If you ever suspect someone is having a stroke, do these three things: Ask them to give you a big, big grin and hold it.