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A-Z interventions and conditions

Exercise for knee osteoarthritis

A-Z interventions and conditions
        1. Exercise for knee osteoarthritis

First published: October 2014 - Updated: November 2017


Intervention

Regular land- or water-based therapeutic exercise for adults with knee osteoarthritis (OA).

Exercise programs may be delivered face to face or via the internet.

Indication

Exercise is recommended as a core treatment for osteoarthritis in all clinical guidelines regardless of patient age, pain levels or disease severity.

Adults with knee OA. The aim is to reduce the pain and improve the physical function of the knee.

Precautions

  • Confirm the patient has appropriate footwear for exercising.
  • Emphasise the need to perform the exercise correctly and at medium speed, to minimise the risk of injury.
  • Ensure safety: advise the patient to use a chair or bench for support when exercising in standing positions.

Contraindications

There are few contraindications; however, comorbidities, such as cardiovascular disease, asthma and diabetes should be considered.

Adverse Effects

Adverse effects are generally infrequent, mild and transient. They include increased pain, exercise-related injury, falls and fall-related injury.

Availability

Exercise is readily available. It can be performed at home, in a group setting or at a local gym. Exercise is effective, whether it is individual or group-based.

Exercise is usually optimised when a home-based program is initially and subsequently periodically individually supervised. Discussing the planned regimen with a health practitioner before commencement and periodically subsequently encourages patient adherence.

While there is evidence that ongoing contact with a health practitioner is beneficial, this may not need to be in person. Internet delivered exercise programs show good uptake and adherence. Internet delivery includes teleconferencing (eg Skype™) with a physiotherapist or using internet based programs/apps. Some programs also have a pain coping skills component.

Description

A range of exercise types have been found to be moderately effective for adults with knee OA (refer to Figure 1).

Evidence suggests that a combination of strength, aerobic and flexibility exercise is most likely to improve pain and physical function outcomes in adults with knee OA.

There is limited evidence about the ‘dosage’ of exercise (frequency, duration, intensity) required for effective management of knee OA. Outcomes do not appear to be related to exercise intensity or to the duration of the exercise sessions.

The consumer resource section contains links to specific knee exercises for patients that can be done at home.

Tips

  • The exercise program should be individualised, taking into account the patient’s age, severity of OA, mobility, comorbidities and exercise preferences.
  • Physiotherapists or exercise physiologists can provide advice about a training program. Consider a referral under the Enhanced Primary Care (EPC) Program so that eligible patients can receive a Medicare rebate.
  • Internet based programs may be useful and cost effective alternatives for patients who cannot or choose not to access physiotherapy. These may also offer help with pain coping skills.
  • Feeling some discomfort or pain during exercise is normal; however, revise the exercise regimen if:
    • the pain is excessive
    • the pain remains elevated for more than 2 hours after exercise
    • there is increased joint swelling the next day.
  • Encourage overweight patients to lose weight. This may help alleviate the symptoms of their knee OA by reducing the load on their knees.
  • A graded approach to exercise, starting with 2–3 simple exercises and progressing to more challenging exercises may improve uptake and patient adherence.

Grading

NHMRC Level 1 evidence.

The knee strengthening exercises below in Downloads, describes basic knee strengthening exercises that patients can do at home. A simple graded approach to exercise has been provided. These exercises have been provided and reproduced with permission from Professor Kim Bennell, Centre for Health Exercise and Sports Medicine, Department of Physiotherapy, University of Melbourne.

Exercise for knee osteoarthritis – a 6-month free research-based exercise and education program including printable exercises and log book.

There is ample information on the internet about knee exercises but it is not possible to assess the quality of all the information available. The following are reputable sites where patients can access further information:

Reference = no exercise

*44/60 randomised controlled trials were in knee OA.

  1. Uthman OA, van de Windt DA, Jordan JL et al. Exercise for lower limb osteoarthritis: systematic review incorporating trial sequential analysis and network meta-analysis. BMJ 2013;347: f5555 DOI: 10.1136/bmj.f5555.
  2. Fransen M, McConnell S. Exercise for osteoarthritis of the knee (Review). Cochrane Database Syst Rev 2008;4:CD004376. DOI: 10.1002/14651858.CD004376.pub2.
  3. Juhl C, Christensen R, Roos EM et al. Impact of exercise type and dose on pain and disability in knee osteoarthritis: a systematic review and meta-regression analysis of randomized controlled trials. Arthritis Rheumatol, 2014;66(3): 622–36. DOI: 10.1002/art.38290.
  4. Bennell KL, Nelligan R, Dobson F, et al. Effectiveness of an Internet-Delivered Exercise and Pain-Coping Skills Training Intervention for Persons with Chronic Knee Pain: A Randomized Trial. Ann Intern Med. 2017;166(7):453–62. DOI: 10.7326/M16-1714.
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