Management of Disuse Myopathy

Introduction to Disuse Myopathy Management

Early implementation of active and passive mobilization combined with muscle strengthening exercises is essential for managing disuse myopathy to prevent further muscle atrophy and promote functional recovery, as recommended by the Intensive Care Medicine society 1

Active or passive mobilization should be instituted as early as possible to prevent further muscle atrophy, according to the Intensive Care Medicine society 1
Walking and standing aids are safe and feasible tools to facilitate mobilization in critically ill patients, as stated by the Intensive Care Medicine society 1
Position changes and pressure relief are essential for maintaining skin integrity in immobile patients, as recommended by the Intensive Care Medicine society 1

Submaximal and aerobic exercise is recommended over excessive resistive exercise for patients able to perform voluntary exercise, as suggested by the Genetics in Medicine society 2, 3
Gentle strengthening within physiological limits to avoid overexertion is recommended for patients able to perform voluntary exercise, according to the Genetics in Medicine society 3
Exercise parameters should include 3 sets of 8-10 repetitions at 50-70% of 1 repetition maximum (1RM), as recommended by the Intensive Care Medicine society 1
Rest periods should be incorporated to prevent excessive fatigue, as suggested by the Genetics in Medicine society 3
Cardiorespiratory response to activity should be monitored, especially in supine position, as recommended by the Genetics in Medicine society 2

Focus on functional activities rather than isolated exercises, as suggested by the Genetics in Medicine society 2
Incorporate activities that enhance self-care skills, mobility, and use of adaptive equipment, as recommended by The Lancet Neurology society 4, 3

Manual muscle testing should be used to measure strength, as recommended by the Mayo Clinic Proceedings society 5
Functional outcome measures, such as timed walking tests and ability to perform daily activities, should be used to assess patient progress, as suggested by The Lancet Neurology society 4
Range of motion assessment should be used to identify emerging contractures, as recommended by The Lancet Neurology society 6
Monitoring for signs of overwork weakness is essential, as suggested by the Genetics in Medicine society 3

Aerobic training and muscle strengthening, in addition to routine mobilization, improve walking distance more than mobilization alone in critically ill patients, as recommended by the Intensive Care Medicine society 1
Non-invasive ventilation during mobilization may improve exercise tolerance in appropriate patients, as suggested by the Intensive Care Medicine society 1

Excessive resistive and eccentric exercise can worsen muscle damage, as warned by the Genetics in Medicine society 2, 3
Overwork weakness can lead to further deterioration, as cautioned by the Genetics in Medicine society 3
Disuse atrophy from insufficient activity can occur, as noted by the Genetics in Medicine society 3
Inadequate monitoring of cardiorespiratory response during exercise can be harmful, as warned by the Genetics in Medicine society 3

Appropriate assistive technology with proper training should be provided for home, educational, and work environments, as recommended by the Genetics in Medicine society 3
Mobility aids, such as manual or electric wheelchairs, should be considered when appropriate, as suggested by the Genetics in Medicine society 3
Orthotic intervention may be necessary to prevent contractures and deformity, as recommended by the Genetics in Medicine society 3

The American Academy of Physical Medicine and Rehabilitation recommends assessing manual muscle testing using the MRC scale to quantify strength changes, timed functional tests including 10-meter walk, time to rise from chair, and 6-minute walk test, every 4-6 months (or more frequently in acute settings) 7

The American Thoracic Society recommends early mobilization with active or passive exercise combined with structured physiotherapy to prevent further muscle loss and improve functional outcomes in patients with disuse muscle atrophy 8
Passive interventions, such as continuous passive motion (CPM) and neuromuscular electrical stimulation (NMES), must begin on day one of immobilization to prevent irreversible muscle loss in unconscious or sedated patients 8
NMES prevents disuse muscle atrophy when patients cannot move actively, with evidence showing it reduces muscle atrophy and critical illness neuropathy in acute respiratory failure 8, 9
The Society of Critical Care Medicine suggests that passive stretching and range of motion exercises are essential for immobile patients to prevent contractures and maintain joint mobility 8, 9

The American College of Sports Medicine recommends low-resistance, multiple-repetition training to augment muscle mass and oxidative capacity without causing overwork damage in patients with disuse muscle atrophy 9
Aerobic training plus muscle strengthening improves walking distance more than mobilization alone in ventilated patients with chronic critical illness, according to the American Thoracic Society 8, 9

Early mobilization improves functional status at discharge, shortens delirium duration, and increases ventilator-free days, as reported by the American Journal of Respiratory and Critical Care Medicine 8
A 6-week upper and lower limb training program improves limb muscle strength, ventilator-free time, and functional outcomes in patients requiring long-term mechanical ventilation, according to the American Thoracic Society and the Society of Critical Care Medicine 8, 9

The American College of Rehabilitation Medicine suggests that standing and walking frames enable early mobilization even in critically ill patients 8
Non-invasive ventilation during mobilization may improve exercise tolerance in appropriate patients, as recommended by the European Respiratory Society 9