The state that your body is in on a regular basis should be an indicator of how fit you are. Your body should feel good after taking on the demands placed on it. If you’re hurting, limping, stiff, and sore in the wrong places then your body is warning you that something is off. It’s best to listen to the warning signals before your body feels irreparable.
Another aspect to consider is how you feel during and after an exercise or an entire workout. Training should prepare your body for life outside of the training room. Obviously there is appropriate muscle soreness related to an exercise that targets a certain muscle, but soreness shouldn’t permeate into the joints. When your joints feel sore or stiff from exercise, a good possibility is that your muscles aren’t working properly and your joints are picking up the slack. There’s also exercises that exacerbate compression, meaning your muscles are working but the technical aspect of the exercise causes compressive forces throughout the body. This usually manifests as muscle soreness accompanied by stiffness and rigidness when you try to move.
If you’ve been following us for awhile, you know the importance of efficient movement. When your body can’t move optimally it starts to compensate and alter your mechanics. You need to have some rhythm when you move to transmit force evenly throughout your kinetic chain. When you’re rigid, your movement gets altered and your function isn’t optimal. Then the entire point of exercise is missed because you can’t handle the demands of the real world appropriately.