Aching and cracking joints
Crackling and grinding sounds
Not so normal:
Significant pain in the joints
With all those muscles, tendons, ligaments and bones working full pelt, it's hardly surprising that you hear a few clicks every now and then. Persistent or significant pain in the joints could be a sign of injury.
SWISS BALL EXERCISES FOR A FULL BODY WORKOUT
THE 'FAST EXERCISE' 3 MINUTE WORKOUT IS INCREDIBLE
MORE GYM ADVICE