Red flags
- Loss of ability to transfer/mobilise independently after even a short admission
- New pressure injury
- Signs of ongoing untreated illness masquerading as "just deconditioning" - persistent fever, rising inflammatory markers
- Aspiration signs (deconditioned swallow) - coughing with oral intake, recurrent chest infections
- Depression/apathy driving refusal to mobilise (distinct from physical inability)
Differential by mechanism
True deconditioning (diagnosis of exclusion once acute illness treated)
- Sarcopenia from bed rest - measurable muscle loss begins within days of immobility, accelerated in older adults
- Cardiovascular deconditioning - orthostatic intolerance, reduced exercise tolerance
- Joint stiffness/contracture risk with prolonged immobility
Mimics/contributors to exclude first
- Ongoing or new infection not yet resolved
- Delirium (reduces engagement with mobilisation, mistaken for physical deconditioning)
- Depression - profound apathy limiting participation
- Undiagnosed new neurological event (stroke), cardiac event
- Malnutrition compounding sarcopenia
- Medication effect (sedation, postural hypotension) limiting safe mobilisation
Focused history
- Illness course and length of bed rest/reduced activity
- Baseline function before the acute illness (essential comparator)
- Nutritional intake during admission - often markedly reduced
- Pain limiting movement
- Mood and motivation - screen for depression as a driver of reduced participation
- Falls or near-falls attempting to mobilise
- Home supports and physical environment for return
Focused examination
- Muscle bulk and strength (proximal - sit-to-stand ability)
- Gait, balance, use of aids
- Postural BP (deconditioning causes orthostatic intolerance)
- Nutritional status (weight, BMI, muscle wasting)
- Skin integrity - pressure areas
- Cognitive and mood screen
- Cardiorespiratory reserve on exertion
Investigation strategy
- Directed at excluding an unresolved or new acute cause (inflammatory markers, cultures if infection suspected) rather than reflexive broad panels
- Nutritional bloods (albumin is an acute-phase marker, not a nutrition marker - interpret with CRP)
- Functional assessment tools - Timed Up and Go, grip strength, gait speed as objective deconditioning measures
- Swallow assessment if aspiration risk
Management
Principle
- Prevention is more effective than rehabilitation - avoid the deconditioning in the first place wherever possible
A. Prevention (every admission)
- "End PJ paralysis" - get dressed, out of bed, mobilising daily unless medically contraindicated
- Avoid unnecessary bed rest, catheterisation, and lines that tether the patient
- Early physiotherapy/OT involvement from admission, not at the point of discharge planning
- Adequate nutrition and hydration from day one
- Treat pain adequately to permit mobilisation
B. Once deconditioning established
- Structured, progressive rehabilitation - individually tailored strength and balance programme, geriatric rehabilitation unit referral if complex
- Nutritional supplementation with protein-adequate intake, dietitian involvement
- Treat any residual driver (mood, pain, orthostatic intolerance) that limits engagement
- Set graded, achievable functional goals with the patient
- Home-based vs inpatient rehab decision based on complexity and safety
C. Discharge planning
- Reassess function against pre-illness baseline, not against an arbitrary standard
- Falls risk assessment before discharge (deconditioning is itself a major falls risk factor)
- Escalate community supports/aids proportionate to residual deficit
- Clear follow-up for ongoing rehabilitation if not fully recovered
Traps
- Labelling everything "deconditioning" without excluding an unresolved acute illness or new event
- Delaying mobilisation "until the patient feels better" - the delay itself worsens the deconditioning
- Missing depression/apathy as the reason a patient will not engage with rehabilitation
- Underestimating how fast sarcopenia develops - a few days of bed rest in an older adult can undo months of baseline function
- Discharging without matching supports to the new (not old) functional level, precipitating readmission
Talk track
Deconditioning is a diagnosis of exclusion - confirm the acute illness is actually resolving and rule out delirium, depression, or an unresolved driver before attributing reduced function purely to bed rest. Prevention (early mobilisation, nutrition, avoiding unnecessary bed rest/lines from day one) beats rehabilitation, but once established, structured progressive rehab with nutrition support and a realistic functional goal against the pre-illness baseline is the management.
8 of 8 sections written · drafted 2026-09-13