Effect of physical exercise in bariatric surgery patients: protocol of a randomized controlled clinical trial.
Background: Bariatric surgery is an effective approach to weight loss and long-term comorbidity resolution. Although recommended in several guidelines, supervised exercise has not been systematically prescribed after bariatric surgery. The aim of this study is to determine the effects of two types of exercise, moderate-intensity continuous training (MICT) and high-intensity interval training (HIIT), on body composition, cardiopulmonary function and perceived quality of life in bariatric surgery patients.
Methods: This randomized controlled exploratory pilot trial will include 75 adults of both sexes scheduled for bariatric surgery. They will be randomly assigned to one of three groups: 1) MICT, 2) HIIT, or 3) a control group. The intervention will occur 2 days a week for 4 months. Outcomes will be assessed at four points: 1) one week before surgery; 2) 21 days after surgery (baseline before the exercise program); 3) 8 weeks after beginning the exercise program; and 4) one week after the end of intervention. Primary outcomes will include body composition, heart rate variability, and six-minute walk test and quality of life scores. Secondary outcomes will be maximal respiratory pressure, flowmeter, hand dynamometry, and 30-second sit-to-stand test results.
Discussion: Both exercise protocols in this study were developed according to evidence-based practice. It is expected that, after 16 weeks of intervention, body composition (measured by electrical bioimpedance), cardiopulmonary function (measured by heart rate variability, maximal inspiratory pressure, maximal expiratory pressure, peak expiratory flow, handgrip strength, and the six-minute walk test) and perceived quality of life (measured by the Moorehead-Ardelt quality of life questionnaire II and bariatric analysis and reporting outcome system scores) will improve, especially in the HIIT group.
Trial registration: ClinicalTrials.gov, NCT04235842, registered 22 January 2020.
Figure 1
Figure 2
This is a list of supplementary files associated with this preprint. Click to download.
Posted 13 Jan, 2021
Received 12 Jan, 2021
On 10 Jan, 2021
Received 10 Jan, 2021
On 07 Jan, 2021
Received 07 Jan, 2021
On 06 Jan, 2021
Invitations sent on 05 Jan, 2021
On 29 Dec, 2020
On 29 Dec, 2020
On 29 Nov, 2020
Received 25 Nov, 2020
Received 20 Nov, 2020
Received 19 Nov, 2020
Received 19 Nov, 2020
On 14 Nov, 2020
On 09 Nov, 2020
On 08 Nov, 2020
On 07 Nov, 2020
Invitations sent on 07 Nov, 2020
On 07 Nov, 2020
On 18 Jul, 2020
On 09 Jun, 2020
On 27 Apr, 2020
Effect of physical exercise in bariatric surgery patients: protocol of a randomized controlled clinical trial.
Posted 13 Jan, 2021
Received 12 Jan, 2021
On 10 Jan, 2021
Received 10 Jan, 2021
On 07 Jan, 2021
Received 07 Jan, 2021
On 06 Jan, 2021
Invitations sent on 05 Jan, 2021
On 29 Dec, 2020
On 29 Dec, 2020
On 29 Nov, 2020
Received 25 Nov, 2020
Received 20 Nov, 2020
Received 19 Nov, 2020
Received 19 Nov, 2020
On 14 Nov, 2020
On 09 Nov, 2020
On 08 Nov, 2020
On 07 Nov, 2020
Invitations sent on 07 Nov, 2020
On 07 Nov, 2020
On 18 Jul, 2020
On 09 Jun, 2020
On 27 Apr, 2020
Background: Bariatric surgery is an effective approach to weight loss and long-term comorbidity resolution. Although recommended in several guidelines, supervised exercise has not been systematically prescribed after bariatric surgery. The aim of this study is to determine the effects of two types of exercise, moderate-intensity continuous training (MICT) and high-intensity interval training (HIIT), on body composition, cardiopulmonary function and perceived quality of life in bariatric surgery patients.
Methods: This randomized controlled exploratory pilot trial will include 75 adults of both sexes scheduled for bariatric surgery. They will be randomly assigned to one of three groups: 1) MICT, 2) HIIT, or 3) a control group. The intervention will occur 2 days a week for 4 months. Outcomes will be assessed at four points: 1) one week before surgery; 2) 21 days after surgery (baseline before the exercise program); 3) 8 weeks after beginning the exercise program; and 4) one week after the end of intervention. Primary outcomes will include body composition, heart rate variability, and six-minute walk test and quality of life scores. Secondary outcomes will be maximal respiratory pressure, flowmeter, hand dynamometry, and 30-second sit-to-stand test results.
Discussion: Both exercise protocols in this study were developed according to evidence-based practice. It is expected that, after 16 weeks of intervention, body composition (measured by electrical bioimpedance), cardiopulmonary function (measured by heart rate variability, maximal inspiratory pressure, maximal expiratory pressure, peak expiratory flow, handgrip strength, and the six-minute walk test) and perceived quality of life (measured by the Moorehead-Ardelt quality of life questionnaire II and bariatric analysis and reporting outcome system scores) will improve, especially in the HIIT group.
Trial registration: ClinicalTrials.gov, NCT04235842, registered 22 January 2020.
Figure 1
Figure 2