slipcover definition: a removable, fitted cloth cover for an armchair, sofa, etc.transitive verb -Â·covÂ·ered, -Â·covÂ·erÂ·ing to cover (a chair, etc.) with a slipcover... Definitions
Upper and middle back pain may be caused by: 1  Overuse, muscle strain, or injury to the muscles, ligaments, and discs that support your spine. 2  Poor posture. 3  Pressure on the spinal nervesspinal nerves from certain problems, such as a herniated disc.  A fracture of one of the vertebrae.
People often assume that their back pain is caused by overdoing an activity, such as weight training, gardening, or work that requires a lot of digging, lifting or twisting. However, there are many causes of back pain. Fortunately, most causes are not as serious as a heart attack. Other causes include: Back muscle spasm, sprain or strain due to overuse or injury. Degenerative disc disease is a breakdown of your spinal discs that cushion your spine.