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Stairlift or Physiotherapy? Best Answer Is Both.
A stairlift complements movement & rehabilitation.
Stairlifts make unavoidable journeys between floors safer,
Families are sometimes told that a person with knee pain should continue using the stairs because stair climbing is good exercise—and that installing a stairlift could make the person “lazy.”
The first part contains an important truth: remaining active is essential. The second part does not necessarily follow. A person can continue exercising while also using equipment that makes the home safer and more accessible.
Physiotherapy provides the controlled exercise needed to preserve strength and mobility.
The purpose of a stairlift is not to stop someone exercising. It is to separate planned, beneficial exercise from painful, exhausting or potentially unsafe stair journeys.
Physiotherapy and a stairlift have different jobs
Physiotherapy is designed to improve movement, strength, balance and function. The UK’s National Health Service explains that physiotherapy can ease pain and improve movement through exercise and other techniques. The Chartered Society of Physiotherapy similarly describes the profession as helping people through “movement and exercise, manual therapy, education and advice.”
A physiotherapist can select an appropriate exercise, observe the person’s technique, control the number of repetitions and gradually increase the challenge. The session can be stopped or modified if pain, swelling, fatigue or instability becomes excessive.
Everyday stair use is different. A person may need to climb when tired, distracted, alone, carrying something or experiencing a painful flare-up. The height and number of steps cannot be reduced, and there may be no safe place to rest halfway.
This is why the NICE guideline for osteoarthritis recommends therapeutic exercise tailored to the individual’s needs, including strengthening and aerobic fitness. It does not suggest that every unavoidable staircase journey is automatically suitable therapy.
Why stairs can be particularly demanding for painful knees
Compared with level walking, using stairs requires greater lower-limb muscle force and joint movement. Ascending requires the person to lift their body weight against gravity. Descending requires the muscles around the knee—particularly the quadriceps—to control the body as it lowers onto the next step.
A peer-reviewed study of stair walking in older people with knee osteoarthritis describes altered movement patterns, including changes in knee movement and increased forward trunk lean. Another biomechanical analysis of stair descent found that participants with knee osteoarthritis had difficulty using the knee normally to absorb impact during the early part of descent.
These findings do not mean that everyone with knee pain must avoid stairs. They demonstrate why the decision should depend on the individual’s strength, balance, pain, diagnosis and movement quality—not on a general rule that stairs are always beneficial.
When useful exercise becomes unnecessary risk
A staircase is no longer serving as good exercise when the person cannot complete it with reasonable control. Warning signs can include:
- The knee buckles or feels as if it may give way.
- The person pulls heavily on the handrail to lift themselves.
- They twist their body or use unsafe compensating movements.
- Pain becomes severe or remains substantially worse after the journey.
- They become exhausted, breathless or unsteady before reaching the landing.
- They have experienced a fall or near-fall on the stairs.
- They avoid part of the home because they are worried about the staircase.
Falls on stairs can have particularly serious consequences. A review of stairway falls and stair negotiation reported that older adults were more than three times as likely to sustain a moderate-to-severe traumatic brain injury when falling on stairs than when falling while walking.
A stairlift can preserve energy for better exercise
A staircase is no longer serving as good exercise when the person cannot complete it with reasonable control. Warning signs can include:
- The knee buckles or feels as if it may give way.
- The person pulls heavily on the handrail to lift themselves.
- They twist their body or use unsafe compensating movements.
- Pain becomes severe or remains substantially worse after the journey.
- They become exhausted, breathless or unsteady before reaching the landing.
- They have experienced a fall or near-fall on the stairs.
- They avoid part of the home because they are worried about the staircase.
Falls on stairs can have particularly serious consequences. A review of stairway falls and stair negotiation reported that older adults were more than three times as likely to sustain a moderate-to-severe traumatic brain injury when falling on stairs than when falling while walking.
A flexible solution rather than an all-or-nothing decision
Installing a stairlift does not mean the person must use it for every journey. Subject to professional advice, they may continue using the stairs when rested, comfortable and stable, while choosing the stairlift when:
- Pain or swelling has increased
- The knee feels weak or unstable
- They are tired or have just completed physiotherapy
- They need to travel between floors at night
- They are experiencing a temporary flare-up
- Stair descent feels less controlled than ascent
This approach allows rehabilitation to continue while giving the person a safer alternative on difficult days.
Supporting independence is not “making someone lazy”
When a person begins avoiding the stairs, they can lose access to bedrooms, bathrooms and family areas. They may become dependent on relatives or restrict themselves to one floor.
A 2026 rapid review of home lift systems and health outcomes associated improved home accessibility with greater autonomy, mobility, perceived safety and quality of life. The authors also noted that research focusing specifically on stairlifts in private homes remains limited. This is why an individual assessment remains important.
A stairlift can help someone continue reaching every part of the home independently. In many cases, that independence encourages participation in daily life rather than inactivity.
The best approach: strength, safety and professional cooperation
A stairlift should not be presented as a treatment for knee pain, and it should not automatically replace every stair journey. It is an accessibility and risk-management solution that can work alongside treatment.
Families can ask the physiotherapist to define:
- How many stair journeys are appropriate
- Whether both ascent and descent are suitable
- What level of discomfort is acceptable
- Which symptoms mean the person should stop
- Which alternative exercises will maintain leg strength
An occupational therapist or appropriately trained mobility professional can assess the home environment, the staircase, the person’s transfers and their ability to operate a stairlift safely.
