The day after an older adult comes home from an operation, family members are often torn when helping them up. The patient looks weak and the family fears a fall as soon as the patient gets out of bed, so they think it is better to let the patient rest for a couple more days and build up strength first. The older adult may also fear weak legs and unsteady standing. This instinct of "wait until strong enough before moving" is the most common mistake in recovery after hospital.
The clinical facts point the other way. When patients start at the bedside after a hospital stay and receive early physical or occupational therapy, 59% regained independent function, compared with only 35% in the control group (Schweickert et al. 2009). In contrast, in healthy older adults, 10 consecutive days of bed rest is enough to lose about 0.95 kg of lean leg mass, and knee extensor strength falls by more than 10% within 10 days (Kortebein et al. 2007). Two more days in bed does not store up strength, and strength keeps being lost. Whether it is movement in bed, sitting up, standing or walking, each must start early and progress stage by stage. To understand more about why training must continue and what lack of activity does, read the article on the causes of disuse and physical decline from bed rest first.
How fast function is lost after hospital, and the three recovery goals
Recovery after illness depends on more than rest. It is a race against time to win back three functions that are being lost continuously: muscle, bone and joint range of movement. All three are lost faster than families expect, and this is the scientific basis for starting rehabilitation training early but progressing step by step.
Functions lost quickly without activity
- Leg muscle: in healthy older adults, 10 days in bed loses about 0.95 kg of lean mass in the legs, and knee extension strength falls by about 13% within 10 days (Kortebein 2007)
- Weight-bearing bone: 17 weeks of bed rest reduces heel bone (calcaneus) mineral content by 10.4% and lumbar spine bone mineral by 3.9% (LeBlanc 1990)
- Joint range of movement: on transfer out of intensive care, 39% of patients already have joint contracture, and in 34% of them it is severe enough to affect daily function (Clavet 2008)
Functions that can be trained back through activity
- 6 months after walking again, heel bone mineral content recovers almost completely (LeBlanc 1990)
- Starting active movement early improves the chance that the patient can walk independently at discharge (Tipping 2017)
- By practising stage by stage, sitting up and standing with weight on the legs every day lay the groundwork for the next stage
The observation of the Clavet research team is worth noting. Patients who stayed in the ICU for more than 8 weeks had a significantly higher risk of joint contracture than patients who stayed 2 to 3 weeks. Once a joint contracture forms, it is hard to stretch out later even if strength is built up. The focus of stage 1 below is therefore to protect joint range of movement first, and not to rush into strength training.
Stage 1: Joint movement in bed (prevent stiff joints first, train strength second)
The goal of stage 1 is very clear: to protect the joints' ability to move. Once joint contracture appears (Clavet 2008), later strength training is held back greatly. At this stage there is no need to chase repetitions or loads. What matters is to take each large joint through its full range once a day. Even when the patient cannot yet get out of bed, these movements can still be done in bed. The article on four types of bed exercises while bedbound sets out in detail how to carry out joint movement, isometric contractions, turning and changing position, and breathing exercises safely.
- 1Full-range passive or assisted movementThe carer or therapist helps by slowly moving the patient's shoulder, elbow, hip, knee and ankle to the end of their range, and repeats a few times in each direction. Move slowly, take each joint through its full range, and never cause pain.
- 2Focus on the ankle and hipIf the ankle is not pressed through the foot on the floor for a long time, it becomes tight easily and leads to foot drop, and the hip flexors at the front of the thigh shorten easily. These two areas need extra practice in pulling the foot up (dorsiflexion) and stretching the thigh backwards, to lay the groundwork for later standing practice.
- 3Turn and change position oftenChange the patient's position about every two hours. As well as preventing pressure sores and avoiding long periods of pressure on joints on one side, this lets the patient feel the position of the body again in different postures.
- 4Active where possibleWherever the patient is able, encourage a change from being fully helped to doing the work with their own effort while the carer lightly supports. Contracting the muscles actively is itself the earliest form of strength training.
Stage 2: Sitting up and sitting balance
Once joint range is protected and vital signs are stable, the next step is to go from lying to sitting. This step looks simple but is an important dividing line for getting out of bed early. The randomised controlled trial of Schweickert and colleagues (2009) used a rehabilitation process of "sit up at the bedside as early as possible and progress step by step" to raise the proportion regaining independent function from 35% to 59%, and also shortened the time with delirium from 4 days to 2 days. The most common obstacle when practising sitting up is dizziness or vision going dark as soon as the head of the bed is raised. If the patient gets dizzy on sitting up, read the article on getting out of bed safely with dizziness from orthostatic hypotension first, and then move on to sitting practice.
Three practical steps in the sitting-up stage:
- Raise the head of the bed step by step—Start from a semi-reclined position so the body adapts slowly to the change in blood pressure, to avoid dizziness from orthostatic hypotension as soon as the patient sits upright. Move on to the next step only after confirming there is no dizziness or pale face.
- Sit at the edge of the bed with legs hanging—Help the patient to the edge of the bed with both feet on the floor and both hands lightly holding the bed edge, and practise sitting steadily without a backrest. This trains control of the trunk and is a basic skill that must be learned before standing up.
- Build up sitting endurance—At first sit for a few minutes each time, then a little longer each day. Only when the patient can sit steadily and for longer is the patient ready for the stage of standing with weight on the legs.
Stage 3: Standing with weight on the legs (protecting bone and waking the gluteal muscles)
Standing is more than a preparation for walking. Weight bearing itself directly stimulates bone. The research of LeBlanc and colleagues (1990) found that 17 weeks of bed rest caused a 10.4% loss of heel bone mineral, but after returning to walking the heel bone recovered almost completely, which shows that standing with weight on the legs is the most direct way to win bone back. Putting body weight properly through the legs and buttocks is also the starting point for waking up the gluteal muscles.
The most common mistake at this stage is to hurry to lengthen the walking distance and overlook whether the standing posture is correct. At home assessments, therapists often find that the patient is just gripping the handrail hard with both hands and the hip and gluteal muscles are not working at all. The key to standing with weight on the legs is to put body weight truly onto the legs and gluteal muscles, and not to rely on the arms alone to hold the body up. The therapist first confirms that the weight-bearing posture is correct, and only then increases the walking distance step by step. If the patient loses balance repeatedly when standing and is at risk of falling, first read the page on balance and fall-prevention training after illness, and then practise walking once the patient is steady.
Gluteal weakness (gluteal amnesia): the cause of unsteady standing and a swaying walk
Why does walking become lopsided after recovery, with the upper body swaying to one side? The problem is often in the buttocks. When the muscles that abduct the hip (mainly gluteus medius) have weakened from bed rest, from surgery or from lack of use, a Trendelenburg gait appears. When the affected leg steps down, the pelvis on the opposite side drops and the upper body leans towards the affected side (Trendelenburg gait, StatPearls 2023). This is more than a small problem of poor walking style. It shows a core gap in weight bearing and balance in the legs.
How to tell that the gluteal muscles are not strong enough
- When standing on one leg, the pelvis on the other side drops clearly and the upper body leans towards the standing leg
- When walking, the body sways from side to side like a waddle, and the weaker leg is especially unsteady when it touches the ground
- Climbing stairs or standing up from a low stool feels very hard, or the patient must push up with both hands
The approach has three steps. The first is progressive strengthening of the hip abductors (progressing from side-lying leg lifts and bridges to standing hip abduction). The second is retraining weight bearing in standing (making sure body weight really passes through the gluteal muscles and is not compensated for by the arms). The last is gait retraining with mirror visual feedback or verbal cues. This is not a problem that heals by itself by walking less. If the patient only increases the walking distance blindly without strengthening the hip abductors in a targeted way, the risk of falling from the swaying gait is underestimated. From the first side-lying leg lifts to weight-bearing single-leg standing, improvement is usually seen within several weeks (StatPearls 2023).
Stage 4: Walking endurance (from supported walking to walking alone)
When standing becomes steadier and the gluteal muscles begin to work, the patient can enter the transition from supported walking to walking alone. This stage has strong clinical evidence behind it. A systematic review showed that starting active movement and rehabilitation during the ICU stay raised muscle strength at discharge (total MRC score) by 8.62 points, and the odds of being able to walk independently were 2.13 times those of the control group (Tipping et al. 2017). A network meta-analysis also confirmed that starting mobilisation within 72 hours of admission helps shorten the stay in the ICU and the overall hospital stay (Daum et al. 2024). Starting early and progressing step by step is therefore the key to rebuilding walking endurance.
- 1Walking with a frame or handrailAt first, practise the walking rhythm with firm support, making sure each step moves forward by pushing the feet down into the floor and does not rely on pulling on the frame or handrail with both hands to drag the body forward.
- 2Reduce support and lengthen distanceThe aid can change gradually from a walking frame to holding a handrail on one side, and then to a walking stick. Each time, walk only a little further. Do not be impatient, and let endurance build up step by step.
- 3Practise on real routes at homePractise directly on routes the patient normally takes at home, for example from the bedside to the toilet or from the living room to the kitchen, so that the walking ability gained truly copes with the home environment.
- 4Walking alone and consolidating enduranceSlowly reduce the support given, lengthen the continuous walking time each time, and add movements needed in daily life such as starting, stopping and turning.
Note that rehabilitation from disuse after hospital differs from the starting point of long-term resistance training for sarcopenia in older adults. The latter mainly targets chronic muscle loss, and readers can read the article on progressive resistance training for sarcopenia separately to tell them apart. The content on this page concentrates on rebuilding function after acute illness or after disuse from bed rest.
Stage 5: Retraining whole-body strength and hand grip
Regaining the ability to walk is only half of functional rebuilding. Another point often overlooked in recovery after illness is grip strength and hand function. Grip strength decides whether the patient can wring out a towel or open a bottle cap, and it is also an objective measure of whole-body strength and physical function. Research shows that midlife grip strength can even predict the risk of disability 25 years later, and the group with the weakest grip had 2.87 times the odds of slow walking speed later compared with the group with the strongest grip (Rantanen et al. 1999). From a practical safety point of view, if both hands cannot grip even a handrail steadily, there is a hidden risk of falling when practising walking. Rebuilding strength after illness therefore has to include grip training. Use a grip ball or a dynamometer with gripping and pinching movements, practise step by step, and record progress with objective readings.
- Lower-limb training: start with sit-to-stand transfers, bridges and standing side leg lifts (hip abduction), then slowly add repeated sit-to-stand and step-ups
- Grip training: add gripping with the hand and pinching objects with the fingers, and record the readings measured to follow progress (for graded training in detail, see the page on grip strength rebuilding)
- Upper limbs and trunk: practise raising both arms, stretching while sitting and rotating the trunk, to cope with the movements needed for daily transfers
- Nutrition: taking enough protein and essential amino acids helps to preserve muscle function (Ferrando 2010)
- Do not practise walking only and neglect the function of the hands, because if the hands cannot grip the walking frame or handrail firmly, supported walking becomes dangerous
The role of nutritional supplements also needs to be stated with its limits. Current medical evidence supports only that taking enough protein and essential amino acids during bed rest "may preserve muscle function" (Ferrando et al. 2010), and there is no specific effect size to guarantee. Nutrition is only a supporting part of progressive resistance exercise and can never replace exercise itself. To compare the whole recovery timetable stage by stage, see the timeline of recovery stages after bed rest.
When to speed up and when to stop
The "progressive" in progressive rehabilitation does not mean rushing blindly. It means moving training on to the next stage as early as safety allows. The rehabilitation programme of Schweickert and colleagues (2009) worked well precisely because the patient's condition was assessed every day: the patient moved up when criteria were met, and slowed down or paused when a danger red flag appeared, and was never simply pushed on.
Practical rules for deciding when to advance or step back:
- Can speed up—When the patient can complete the movements of the current stage steadily, with no pain, no marked breathlessness or dizziness, and still feels there is energy left, the patient can go to the next stage (for example, after sitting steadily, try standing up, and after standing steadily, try stepping).
- Should slow down—If during practice there is dizziness on standing, a pale face, chest tightness, worsening breathlessness, red, hot and painful joints or a fall, stop at once and go back to the last stage the patient could do steadily.
- Needs help—Persistent chest pain, sudden weakness of the arm and leg on one side, slurred speech, fever, a wound that is leaking, or severe pain are all danger signals. Contact a healthcare professional promptly and do not push on regardless.
When is professional help needed? When home training stalls at one stage and cannot move on (for example the patient can stand steadily but still cannot take a step, or the swaying at the hips does not improve), or when the family cannot judge when to speed up or slow down, it is suitable to arrange a therapist to visit and assess. When the registered physiotherapists at Nova Health provide home physiotherapy, they use the actual furniture in the patient's home, such as a handrail by the bed, a dining chair and a hallway wall, to design standing weight-bearing and supported walking training in stages, and judge professionally when to advance or step back at each stage, and do not just exercise on a treatment couch. To see the whole service framework for recovery after hospital, go back to the overview of recovery after a long hospital stay.
Finally, two real situations that Hong Kong families face often. First, many old tenement buildings and older public housing blocks have no lift to the flat, and the first real hurdle for an older adult after discharge is often walking from the bed to the bathroom and then coping with stairs. A home assessment therefore starts by practising in stages inside the flat with the furniture already there, and does not stop at bed exercises. Second, the narrow kitchens and slippery bathrooms common in Hong Kong homes are high-risk places when training walking endurance. The therapist works with the actual environment, such as the position of non-slip mats and bathroom handrails, to design a safe route that moves the patient from supported walking to walking alone. For community resources to take over support, the following may be used:
Community rehabilitation resources in Hong Kong:The community rehabilitation network (CRN) of the Hong Kong Society for Rehabilitation (香港復康會) has a multidisciplinary team of physiotherapists, occupational therapists, nurses and social workers, and provides community rehabilitation services for discharged patients and people with long-term illness. The head office enquiry telephone is (852) 2534 3300, the Hong Kong Society for Rehabilitation centre at Quarry Bay (鰂魚涌康山中心) is (852) 2549 7744, and the Wo Che centre in Sha Tin (沙田禾輋中心) is (852) 2636 0666 (www.rehabsociety.org.hk). The Social Welfare Department's Day Community Rehabilitation Centres (日間社區康復中心, CRDC) provide mobility training, self-care training and carer support for discharged patients (www.swd.gov.hk). The geriatric day hospitals and community nursing services of the Hospital Authority also give recently discharged older adults specialist day rehabilitation and home-visit nursing (www.ha.org.hk).
