NCT03975244

Brief Summary

Background: Patients awaiting bariatric surgery, apart from suffering higher BMI, show a large number of comorbidities and a low physical fitness. These factors are associated with a longer surgery time, a longer hospital stay and a greater number of operative complications. To reduce these disadvantages, a nutritional intervention is performed to reduce total weight and the comorbidities associated with obesity prior to surgery. However, the prescription of an exercise program, which can be an effective tool to improve these factors, is not usually part of the usual care of these patients. Objective: To know the effects of a semi-supervised exercise program on body composition, cardiovascular risk factors and operative complications in bariatric patients. Methods: Approximately 3 months before surgery, 60 patients awaiting bariatric surgery will be recruited. Patients will be randomized into two groups: a) an experimental group (n = 30); b) a control group (n = 30). The experimental group will perform a semi-supervised exercise program, while the control group will only perform the corresponding evaluations. Both groups will be assessed for body composition, cardiovascular risk factors, physical condition, quality of life and physical activity levels at the beginning and at the end of the intervention. In addition, surgery time, hospital length of stay and operative complications will be evaluated in both groups.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2019

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 30, 2019

Completed
6 days until next milestone

First Posted

Study publicly available on registry

June 5, 2019

Completed
3 months until next milestone

Study Start

First participant enrolled

September 1, 2019

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2020

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2020

Completed
Last Updated

June 5, 2019

Status Verified

May 1, 2019

Enrollment Period

11 months

First QC Date

May 30, 2019

Last Update Submit

June 4, 2019

Conditions

Outcome Measures

Primary Outcomes (7)

  • Change in body composition - Body mass index

    Bioimpedance analysis will be used for establishing body weight and body composition. This variables will be evaluated between 8:00 and 9:00 A.M., after at least 8 hours of fasting, with an empty bladder. Body mass index will be calculated dividing weight in kilograms by squared height in meters. Therefore, body mass index will be expressed as kg·m-2.

    Baseline and 3 months, between 8:00 AM and 9:00 AM.

  • Change in glucose and HbA1c levels.

    Blood samples will be taken after a 12 h of overnight fast. Exercise will be forbidden 48 h before the test.

    Baseline and 3 months, between 8:00 AM and 10:00 AM.

  • Change in total cholesterol, HDL cholesterol and LDL cholesterol levels.

    Blood samples will be taken after a 12 h of overnight fast. Exercise will be forbidden 48 h before the test.

    Baseline and 3 months, between 8:00 AM and 10:00 AM.

  • Change in systolic and diastolic blood pressure.

    Systolic and Diastolic Blood pressure will be measured according to established recommendations.

    Baseline and 3 months, between 8:00 AM and 9:00 AM.

  • Complications rates

    All the complications suffered by patients will be recorded.

    Day 30 after surgery.

  • Length of stay.

    The number of days at hospital after bariatric surgery will be recorded.

    Day 15 after surgery.

  • Change in handgrip strength

    Strength levels will be assessed using a hand dynamometer.

    Baseline and 3 months, between 5:00 PM and 8:00 PM.

Secondary Outcomes (3)

  • Change in physical activity levels.

    Baseline and 3 months, seven days.

  • Change in health-related quality of life: sf-36 questionnaire.

    Baseline and 3 months.

  • Change in waist and hip circumference.

    Baseline and 3 months, between 8:00 AM and 9:00 AM.

Study Arms (2)

Exercise group

EXPERIMENTAL

Three months of semi-supervised exercise program in patients awaiting bariatric surgery. Body composition, cardiovascular risk factors, physical fitness, physical activity levels and quality of life will be assessed before and at the end of the study. In addition, surgery time, hospital length of stay and operative complications also will be evaluated.

Behavioral: Exercise program

Control group

NO INTERVENTION

The control group only will perform the evaluations of the study.

Interventions

Twelve-week of semi-supervised exercise program. The exercise program will combine resistance and endurance training. Both the volume and intensity of training will start at moderate intensity, and progressively be increased at higher volumes and intensities.

Also known as: Exercise program in patients awaiting bariatric surgery.
Exercise group

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Age between 20-55 years.
  • All patients awaiting bariatric surgery.

You may not qualify if:

  • Patients with chronic respiratory diseases
  • Patients with cardiovascular diseases
  • Inability to perform exercise

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Obesity, MorbidMotor Activity

Interventions

Resistance Training

Condition Hierarchy (Ancestors)

ObesityOverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBehavior

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesPhysical Conditioning, HumanExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Department of Surgery

Study Record Dates

First Submitted

May 30, 2019

First Posted

June 5, 2019

Study Start

September 1, 2019

Primary Completion

July 31, 2020

Study Completion

November 30, 2020

Last Updated

June 5, 2019

Record last verified: 2019-05