Metamaterials with stiffness tunability have demonstrated great potential in mechanical systems that operate in variable environments. Real-time ...

Do you wake up in the morning with stiff joints that are hard to move? Medications may help prevent morning stiffness, and there are nondrug treatments you can try to loosen up your stiff joints so ...

Please provide your email address to receive an email when new articles are posted on . Elbow stiffness following trauma, surgery or due to joint degeneration is a common problem that can ...

With age, stiff joints become a reality for many people. Years of use can take a toll on joints, muscles, and bones, but there are steps you can take to find relief. Why does joint stiffness occur?

Chair and Associate Professor of Physical Therapy, University of Dayton For most people, the term “stiffness” has negative connotations. When you wake up in the morning complaining of a “stiff back,” ...

Muscle stiffness is when the muscles feel tight and difficult to move, particularly after resting. This can cause them to feel sore. Possible causes include a sprain or strain, an infection, and ...

Potential causes of knee stiffness include injury, arthritis, or arthrofibrosis. Certain types of arthritis are more common in older adults and people with previous knee injuries. People may be able ...

Stiff person syndrome (SPS) causes you to have muscle stiffness and spasms, often triggered by sudden noises or touch. You can use medications like muscle relaxants and anticonvulsants to relieve ...