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Intern Med J. 2016 Apr;46(4):435-42. doi: 10.1111/imj.13007.

Weight satisfaction, management strategies and health beliefs in knee osteoarthritis patients attending an outpatient clinic.

Author information

1
School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
2
Rajshahi Medical College and Hospital, Rajshahi, Bangladesh.
3
Baker IDI Heart and Diabetes Institute, Monash University, Melbourne, Victoria, Australia.
4
Healthy Lifestyle Research, Department of Nutrition and Dietetics, Monash University, Melbourne, Victoria, Australia.
5
Department of Orthopaedic Surgery, Alfred Hospital, Melbourne, Victoria, Australia.
6
Department of Surgery, Monash University, Melbourne, Victoria, Australia.

Abstract

BACKGROUND:

Although weight control is important in managing knee osteoarthritis (OA), it is difficult to achieve. Understanding beliefs regarding weight management in people with knee OA may improve weight control.

AIMS:

To examine differences in bodyweight satisfaction, weight management strategies and weight-related health-beliefs in obese, overweight and normal weight people with knee OA.

METHODS:

The beliefs and attitudes to weight in 102 people with symptomatic knee OA were ascertained. Participants were classified as being obese, overweight or of normal weight.

RESULTS:

Although obese and overweight participants were less satisfied with their bodyweight, they were more likely to want to lose weight and to report dieting compared with normal weight participants(P < 0.001 for all) and also more likely to report weight gain in the past 6 months (P < 0.001). While most participants rated food intake to be a main determinant of health, this belief was more common in normal weight participants (P = 0.04). When asked about their own weight gain, obese participants more frequently believed genetic and metabolic factors to be important than normal and overweight participants (P = 0.01). While 51 (53%) believed that increasing activity was more important than dietary change to avoid weight gain, this was more commonly believed by obese and overweight participants (P < 0.05).

CONCLUSIONS:

Despite desiring and attempting to lose weight, obese people with symptomatic knee OA more commonly reported weight gain. Overweight and obese participants attributed weight gain to non-modifiable factors but believed physical activity is more important than dietary change in weight management. Thus, education regarding the importance of diet as compared with non-modifiable factors and physical activity may improve weight management in obese people with knee OA.

KEYWORDS:

beliefs; knee; obesity; osteoarthritis; weight loss

PMID:
26762652
DOI:
10.1111/imj.13007
[Indexed for MEDLINE]

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