Impact of Bariatric Surgery on Cardiorespiratory Function

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

24 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-06-30

Study Completion Date

2018-10-31

Brief Summary

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Obesity is a growing problem worldwide and its prevention has become one of the leading priorities for the World Health Organisation. Obesity results from chronic imbalance between energy intake and energy expenditure. Although early prevention of obesity is preferable, surgical treatment is often required for severely obese people.

Bariatric surgery has been shown to be the most effective therapy for severe obesity. Weight loss following bariatric surgery results in significant improvements in coexisting comorbidities, such as diabetes and hypertension but there is controversy whether bariatric surgery also improves aerobic capacity.

The purpose of this study is to investigate the effects of bariatric surgery on cardiopulmonary function and on daily physical activity. It is hypothesized that bariatric surgery will improve aerobic capacity and result in beneficial lifestyle changes from sedentary to more active.

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Detailed Description

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Conditions

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Obesity Bariatric Surgery Candidate Physical Activity

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Ages 18 years to 50 years
* Patients enrolled in the bariatric surgery program of St George's Hospital with BMI \> 40 kg/m2, or 35-40 kg/m2 in the presence of other obesity-related comorbidities such as hypertension or type- 2 diabetes

Exclusion Criteria

* Locomotor difficulties which would prevent participants from completing the cardiopulmonary exercise testing
* Weight \> 190 kg (due to weight restrictions of equipment used to transfer patients in the event of medical emergencies)
* Cognitive impairment
* Patients unable to follow instructions in English

Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No