Catatonia is a medical condition characterized by immobility and unresponsiveness. Other physical impairments include joint contractures due to long periods of immobility while hospitalized. Catatonia is a state of psycho-motor immobility and behavioral abnormality manifested by stupor. In addition, changes in positioning prevents immobility and shifts areas of venous stasis. Risk factors for secondary adhesive capsulitis include injury or surgery that lead to prolonged immobility. Immobility and physical stress (such as malnutrition or dehydration) are also risk factors. Sarcopenia is a type of muscle loss (muscle atrophy) that occurs with aging and/or immobility. The joint pain can be debilitating, often resulting in near immobility of the affected joints. The practitioners claim to treat skeletal muscle immobility and pain by relaxing contracted muscles. These include immobility, instability, incontinence and impaired intellect/memory. Obesity, immobility, and sedentary lifestyles are other leading risk factors. This may arise from a deep venous thrombosis, especially after a period of immobility. Physical therapy often helps prevent joint immobility. The mean duration of the tonic immobility was 61.9 seconds. Despite appearances, the animal remains conscious throughout tonic immobility.