Addition of aerobic physical activity to resistance exercise for hip osteoarthritis (PHOENIX): a randomised comparative effectiveness trial

Key Points

1. Adding aerobic physical activity to a resistance training program did not confer any additional benefit on pain and physical function compared to resistance training alone in patients with a clinical diagnosis of symptomatic hip OA at three and nine months.

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BACKGROUND & OBJECTIVE

Best practice guidelines for hip osteoarthritis (OA) consistently recommend exercise as a core treatment (1). However, there is no clear evidence to recommend one specific type of exercise over another. For instance, it remains uncertain whether adding aerobic physical activity to resistance exercise can provide better outcomes than resistance exercise alone.

As a result, the objective of this study was to assess whether adding aerobic physical activity to resistance exercise led to substantially greater improvements in hip pain and function at three months, compared with resistance exercise alone, in patients with hip OA.

Best practice guidelines for hip osteoarthritis consistently recommend exercise as a core treatment, however, there is no clear evidence to recommend one specific type of exercise over another.

It is of utmost importance to continue to encourage both types of exercise (among others) in this patient population, as aerobic exercise confers many additional benefits (e.g. systemic, psychological, etc.) outside of pain and physical function.

METHODS

• Patients with a clinical diagnosis of symptomatic hip OA were recruited for this randomized comparative effectiveness trial. Participants were randomly assigned to one of two groups: Aerobic physical activity and resistance exercise, or Resistance exercise only.

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