The balance of protein synthesis and degradation sustains regular turnover, but immobilization, age, cancer cachexia and strenuous exercise disrupt the balance and contribute to skeletal muscle disorders.
12 Similarly, in a prospective study of 50 patients treated with closed reduction and cast immobilization, age was the only statistically significant risk factor in predicting secondary displacement and instability.
While the procedure-related tissue damage is the major activator of coagulation, several risk factors, such as postoperative immobilization, increasing age and high body mass index, have been associated with a higher incidence of VTE [3].
A variety of conditions, including immobilization, training, aging and medications, may influence tendon characteristics [ 2, 8- 11].
Conversely starvation, immobilization and aging increase the rate of protein degradation and result in muscle atrophy (reduction in mass) [ 14].
Immobilization and increasing age rapidly reduce muscle force, especially of the quadriceps [ 7].
She, thus, had three significant independent risk factors i.e., age, immobilization and possible hypercoagulable state for development of PE.
Age, immobilization, hypercoagulable state, excess estrogen state, indwelling central venous line, and prior PE and/or DVT are significant independent risk factors for PE [ 24].
ICU patients share similar general risk factors for VTE with other patients: age, immobilization, obesity, past history of personal or familial VTE, past history of neoplasm, sepsis, stroke, respiratory or heart failure, pregnancy, trauma, or recent surgery [ 9, 17, 35– 35].
Eighty-four percent of our patients were female, and the most prevalent risk factors were age, immobilization (31%), ejection fraction < 40%28%8%), history of deep venous thrombosis (25%), and chronic pulmonary hypertension (16%).
In this regard, downregulated IGF1 signaling was associated with muscle atrophy by denervation, immobilization, unloading, starvation, aging, and prolonged glucocorticoid administration [6].
