Arthritis is the most common joint disorder, and it develops from wear and tear on a joint, like from aging. There are two main types of arthritis conditions: Osteoarthritis (OA) and Rheumatoid arthritis (RA). Those who suffer from OA tend to be older, but younger people can also develop this kind of arthritis after injury or repetitive stress. RA is an autoimmune disorder, which means the body’s immune system abnormally attacks healthy tissue. This leads to inflammation in joints, surrounding tissues and even other organs.
Muscle pain can be a simple ache, spasm or strain, to severe spasticity (stiffness or rigidity) that restricts or inhibits proper movement. Muscle pain can be caused by an injury, an autoimmune reaction, loss of blood flow to the muscle, infection or a tumour.
Back pain, which ranges from the neck pain to the lower back, is one of the most common complaints in adults and is often related to the lifestyles they lead or the type of occupation. Back pain can be caused by sore muscles and tendons, herniated discs and fractures. Other types of back pain can include sciatica where there is a burning sensation that spreads to the back of the leg. Spondylolisthesis occurs when one vertebra extends over another, causing pressure on the nerves and resulting in pain.
Repetitive Strain Injury
When a person has to perform repeated motions in the course of normal work, other daily activities or during sport, he or she is at risk for a muscular condition called repetitive strain injury. E.g. carpal tunnel syndrome (from prolonged typing), tendonitis (inflammation of tendons from poor movement) or patellofemoral pain syndrome (dramatic increase in training).