Effect of Bariatric Surgery on Physical Activity, Gait, Flexibility and Quality of Life

Study Overview
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Brief Summary
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This study aimed to analyze spatio-temporal characteristics of gait, physical activity level and changes in quality of life in patients by measuring conditions before bariatric surgery and third-month after the surgery.

Official Title
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Investigation of the Effect of Bariatric Surgery on Physical Activity Levels, Spatiotemporal Parameters of Gait, Flexibility and Quality of Life

Conditions
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Obesity, Bariatric Surgery, Gait

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Diagnosis of obesity Body mass index > 35 Speak and understand Turkish Ability of read and write Exclusion Criteria: History of lower extremity surgery Musculoskeletal/systemic/neurological/psychiatric problems Urinary syndromes Limited gait due to cardio-pulmonary insufficiency Unwillingness to participate

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Gait speed | Participants's gait speed were evaluated by a wearable sensor. This wearable sensor is named BTS G-Walk sensor (BTS Bioengineering S.p.A., Italy) and was attached L4-5 region by a belt. The data were transferred by Bluetooth connection to software while participants' walking. | Change from baseline at 3 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Support times | Participants's support times of gait were evaluated by a wearable sensor. The wearable sensor is named BTS G-Walk sensor (BTS Bioengineering S.p.A.,Italy) and was attached L4-5 region by a belt. The data were transferred by Bluetooth connection to software while participants' walking. | Change from baseline at 3 months | 
| Step Length | Participants's step lengths of gait were evaluated by a wearable sensor. The wearable sensor is named BTS G-Walk sensor (BTS Bioengineering S.p.A.,Italy) and was attached L4-5 region by a belt. The data were transferred by Bluetooth connection to software while participants' walking. | Change from baseline at 3 months | 
| Levels of physical activity | Physical activity levels were evaluated by the International Physical Activity Questionnaire- Short Form. This form include seven questions. With these questions, it is possible to obtain information about the time individuals spend in walking, moderate and vigorous activities and also time spent sitting. As a result of the calculations, the level of physical activity is divided into three groups. These groups are as follows: Less than 600 metabolic equivalent-minute inactive; between 600-3000 metabolic equivalent-minute are minimum active; more than 3000 metabolic equivalent-minute are very active. | Change from baseline at 3 months | 
| Sit-Reach Test | The flexibility of the lumbar extensors, hamstrings and gastrocsoleus muscle group was evaluated with the Sit-to-Sit Test. Individuals were asked to sit in a long sitting position, hold their feet in 90 degrees dorsiflexion and reach for their toes with their hands without bending their knees. The test was repeated three times and the mean value was recorded. Positive values were used if this value reached beyond the toes. Higher positive values indicate better flexibility. | Change from baseline at 3 months | 
| Modified Thomas Test | Flexibility in the Rectus Femoris and Iliopsoas muscles evaluated with Modified Thomas Test. While bringing her hip to maximum flexion with her hands, she was asked to lower the extremity to be tested towards the ground. Measurements were repeated 3 times for each extremity and these values were average was taken. Measurements were made with a goniometer. Higher values indicate better flexibility. | Change from baseline at 3 months | 
| Popliteal Angle | Popliteal angle measurement was used for hamstring shortness. The measurement was performed with the participants in supine position with the goniometer zeroed to the anterolateral half of the tibia and the hip stabilized at 90 degrees of flexion. The average of two measurements taken five seconds apart was taken. Values above 20 degrees were considered as hamstring shortness. | Change from baseline at 3 months | 
| Quality of Life | The Impact of Weight on Quality of Life Questionnaire (IWQOL) was used to assess the participants' quality of life. The scale includes questions on bodily functions, self-esteem, sexual life, social pressure and work. The minimum score that can be obtained from the scale consisting of 31 items in total is 0 and the maximum score is 100. A lower score indicates a lower quality of life. | Change from baseline at 3 months |