It you don't use it, you lose it! Disuse and physical inactivity can lead to osteoarthritis- a painful degeneration of hone and cartilage in the joints. Arthritis usually begins during middle age and causes pain and disability Gradually, the surfaces of the connecting bones
deteriorate, which decrease the quality of life. Drugs such as aspirin, ibuprofen or naproxen may relieve the symptoms, but have no effect on the underlying problem. Researchers from the Indiana University School of Medicine found that older adults with mild knee arthritis
who did lower-body weight training for 2.5 years showed less narrowing in the knee joint following Xray examination a sign that arthritis wasn't progressing.
Flexibility exercises practiced by the control group had no effect on knee joint arthritis. Subjects in both groups lost lower-body strength during the study, but losses were less in the strength-training group.