Inspiratory and Calf Muscles Training in Patients With Leg Lymphedema

Study Overview
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Brief Summary
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Lymphedema results in the accumulation of protein-rich fluid in the subcutaneous tissue as a result of the failure of the lymphatic system, which returns water and protein in the interstitial spaces to the bloodstream. The aim of its treatment is to return this fluid accumulated in the interstitial space to the venous system. Early diagnosis and subsequent treatment of lymphedema, which is a chronic and progressive problem, is important to improve symptoms and prevent complications. Exercises recommended by specialist physiotherapists increase lymph flow and improve protein resorption. Exercises applied with compression bandages or compression garments provide significant improvement in patients with lymphedema. The aim of this study is to provide inspiratory muscle training and leg compression therapy together with compression therapy in patients with lower extremity lymphedema. To evaluate the effectiveness of these exercises on the patient's extremity volume and fullness, tissue water content, edema status, walking capacity, functionality and quality of life by comparing the effectiveness of muscle exercise training. In addition, researchers aim to determine the more effective exercise method for these patients.

Detailed Description
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Lymphedema is a chronic, progressive disease that occurs with the accumulation of protein-rich fluid in the interstitial tissue spaces as a result of abnormal development or damage to the lymphatic system. Exercise is one of the components of Complex Relief Physiotherapy, which is used as the gold standard in the treatment of lymphedema. exercises put pressure on lymphatic vessels with rhythmic contraction and relaxation of muscle groups. Thus, smooth muscle contraction in the lymphatic vessels is triggered. The transport of lymph fluid is possible with the activation of the muscles that provide the movement of the skin. It has been shown that strengthening the calf muscle with exercise can improve the pumping function, increase the average peak torque of the muscle, decrease the severity of the disease, increase the ankle joint movement, increase the calf muscle endurance and improve the quality of life. The pump power of the inspiratory muscles is also important in the lymph circulation, as well as in the venous circulation. This study will include 45 patients who volunteered to participate in the study, who were treated at Istanbul University- Cerrahpasa Faculty of Health Sciences and Gerontology Research and Application Center from October 2022 to October 2023. Lymphedema Quality of Life Scale for Evaluation (LYQOL) Lower Extremity Perimeter Measurement Numerical Rating Scale . 6 Minute Walk Test. Tissue Dielectric Constant (TDC) will be used. Participants will be randomly divided into 4 groups. Only compression therapy(CT) will be given to the 1st group, inspiratory muscle training (IMT) in addition to the compression therapy to the 2nd group, and Calf muscle exercise training to the 3rd group in addition to CT. CT will be applied to the patients in all four groups for 45-60 minutes a day, 6 days a week, for 4 weeks. Patients in the other 2 groups will participate in an exercise program for 4 weeks, 4 days a week, in addition to CT. The power analysis will be calculated based on the 5% margin of error, 95% confidence level, using the Raosoft sample size and the clinically significant minimum difference of LYMQOL, one of the primary measurement tools.

Official Title
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Target Muscles Training in Patients With Leg Lymphedema : Inspiratory Muscles Versus Calf Muscles

Conditions
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Lymphedema of Leg, Lymphedema, Exercise

Intervention / Treatment
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* Other: Compression Therapy
* Other: Inspiratory muscle training
* Other: Calf muscle exercise training


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Having been diagnosed with lymphedema No visual or hearing impairment Being literate in Turkish 18- 75 years old Exclusion Criteria: Acute infection Aardiac edema Peripheral arterial diseases Congestive advanced heart failure Malignant lymphedema Having a psychiatric disorder requiring prior vessel ablation and/or prescription medication Having a neurological, orthopedic or rheumatological disease

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| No Intervention: 1.Group (Compression Therapy)<br>The patient will be placed in the supine position. Short stretch bandages of 6, 8, 10 and 12 cm will be applied to the extremity in a multi-layered and special way. Starting with the finger bandage, the pressure will be reduced as it goes distally. The patient's gait and circulation will be checked after bandaging is finished. will be. | |
| Experimental: 2.Group (Inspiratory muscle training)<br>Maximum inspiratory intraoral pressure (MIP) and expiratory intraoral pressure (MEP) will be measured before patients begin IMT. Total training time 30 minutes per day will be. On the first day, the MIP levels of the participants will be evaluated and the training workload will be determined as 30% of the MIP. For IMT, after a nose clip was inserted from the participants They will be asked to sit on the mouthpiece of the device and close their lips tightly. With the device in this position, the device for four to five breath rests after every 10 breathing cycles. mouth, and repeat the cycle for 15 minutes. | Other: Compression Therapy<br>* 6, 8, 10 and 12 cm short tension bandages multi-layered and will be applied specifically to the extremity. Starting with the finger bandage, the pressure will be reduced as it goes distally.<br>Other: Inspiratory muscle training<br>* Maximum inspiratory intraoral pressure (MIP) and expiratory intraoral pressure (MEP) will be measured before patients begin IMT. Total training time per day will be 30 minutes.<br>|
| Experimental: 3.Group (Calf muscle exercise training)<br>A strengthening treatment program will be applied to the calf muscles. CMET will consist of static stretching exercise for the dorsiflexors and plantar flexors, isotonic resistance exercise with elastic resistance bands, heel and toe lift in both feet, followed by toe raising and lowering without heel raising. An isotonic exercise (mini squat) will be performed for ankle pumping exercise and knee flexion in sitting position. Patients will begin strength training with elastic resistance bands using red bands (lowest resistance). Green and blue bands by increasing the number of sets and repetitions will start to be used (increased resistance). (31.32) | Other: Compression Therapy<br>* 6, 8, 10 and 12 cm short tension bandages multi-layered and will be applied specifically to the extremity. Starting with the finger bandage, the pressure will be reduced as it goes distally.<br>Other: Calf muscle exercise training<br>* A strengthening treatment program will be applied to the calf muscles.dorsiflexors and plantar flexors will consist of static stretching exercise, isotonic resistance exercise with elastic resistance bands, heel and toe raising in both feet, followed by toe raising and lowering without raising the heel.<br>|
| Experimental: 4.Group (Inspiratory and calf muscle training)<br>All applications made in 3 groups will be made in this group. | Other: Compression Therapy<br>* 6, 8, 10 and 12 cm short tension bandages multi-layered and will be applied specifically to the extremity. Starting with the finger bandage, the pressure will be reduced as it goes distally.<br>Other: Inspiratory muscle training<br>* Maximum inspiratory intraoral pressure (MIP) and expiratory intraoral pressure (MEP) will be measured before patients begin IMT. Total training time per day will be 30 minutes.<br>Other: Calf muscle exercise training<br>* A strengthening treatment program will be applied to the calf muscles.dorsiflexors and plantar flexors will consist of static stretching exercise, isotonic resistance exercise with elastic resistance bands, heel and toe raising in both feet, followed by toe raising and lowering without raising the heel.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Lymphedema Quality of Life Scale | Evaluates the effect of arm and leg edema on quality of life with separate questionnaires. It consists of 4 subscales: function, appearance, symptom and mood. The score of each item ranges from 1 to 4 (1 = not at all, 2 = a little, 3 = a lot, 4 = a lot). The score of each scale is calculated by dividing the total score by the number of items and ranges from 1 to 4. It is concluded that the higher the score, the more the quality of life is affected. | 5 minute | 
| Lower Extremity Perimeter Measurement | It will be calculated using the Frustum Formula from circumference measurements taken at 10 cm intervals from the tip of the second toe to the thigh. Patients' affected and unaffected lower extremities will be measured with standard fiberglass. Measurements will be made by the same physiotherapist before and after the 4-week intervention. | 5 minute | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Numerical Rating Scale | Subjective feedback of patients regarding leg fullness associated with lymphedema will be recorded by the scoring method of the affected lower extremity. This scoring will be between 0 and 10. | 5 minute | 
| 6-Minute Walk Test | It is used to determine walking capacity by measuring the maximum distance an individual can walk in six minutes. | 10minute | 
| Tissue Dielectric Constant (TDC) | The tissue dielectric constant (TDC) technique gives information about the emergence of lymphedema in the early stages and the change in the amount of water under the skin. | 5 minute | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Diagragma, Calf Muscle