Chester Step Test: is It Effective in Scleroderma Patients?

6 Minutes Walk Test, Chester Step Test, Systemic Sclerosis (SSc)

Chester step test, Systemic Sclerosis, 6 minutes walk test, Modified Borg Scale

Systemic sclerosis (SSC) is a chronic autoimmune disease in which autoimmune features are associated with vascular manifestations. Patients with SSC experience many problems such as interstitial lung disease (ILD), pulmonary arterial hypertension (PAH), heart failure, severe gastrointestinal tract (GIT) involvement and scleroderma renal crisis (SRC). Because of these problems, SSC patients may develop an abnormal pulmonary hemodynamic response during exercise. In this situation, measuring the aerobic capacity of SSC patients can be a useful tool for health promotion. There are many different methods for measuring aerobic capacity tests. The most commonly used aerobic capacity test in SSC patients is the 6-minute walk test (6 MWT). However, although the 6 MWT is a commonly used test, it has some disadvantages. Because SSC affects multiple organs, there are doubts about the 6 MWT's ability to accurately assess these diseases. These disadvantages of the 6MWT have led to the search for new tests. The Chester step test (CST) is a submaximal test and a good option to assess aerobic capacity. An adapted version of the CST for non-healthy individuals can be used to assess aerobic capacity. There are some studies conducted with CST. As a result of my research, no study evaluating CST in individuals with SSC was found.

Systemic sclerosis (SSC) is a chronic autoimmune disease with autoimmune features combined with vascular manifestations. Systemic sclerosis (SSC), the main symptom of which is skin sclerosis, is a marker that can detect the activity of the disease. Apart from skin involvement, SSC affects many internal organs such as the musculoskeletal system, gastrointestinal system, lungs, heart and kidneys. Because of these problems, SSC patients may develop an abnormal pulmonary hemodynamic response during exercise. This can lead to symptoms of dyspnea, fatigue and decreased exercise tolerance. In this situation, measuring the aerobic capacity of SSC patients can be a useful tool in health promotion. There are many different methods for measuring aerobic capacity tests. The most commonly used aerobic capacity test in SSC patients is the 6-minute walk test (6 MWT). However, although the 6 MWT is a commonly used test, it has some disadvantages. Because SSC affects multiple organs, there are doubts about the 6 MWT's ability to accurately assess these diseases. For an accurate 6MWT assessment, a 30 meter corridor is needed. This length of corridor is impossible to access in some clinics. These disadvantages of the 6MWT have led to the search for new tests. The Chester step test (CST) is a submaximal test and a good option for assessing aerobic capacity. Compared to 6 MWT, CST has the advantage of requiring portable equipment. It is a cost-effective option to assess exercise tolerance, fatigue and dyspnea. Because of these advantages of the CST, it can be used to assess aerobic capacity when adapted to non-healthy individuals. There are some studies conducted with CST. As a result of my research, no study evaluating CST in individuals with SSC was found. The study will be conducted at Firat University Hospital and 45 patients will be evaluated. After the demographic data of the patients included in the study are recorded, 6MWT will be performed and the results will be recorded. Then CST will be performed and the results will be recorded.6 Dyspnea, fatigue and leg fatigue will be evaluated with the Modified Borg Scale before and after MWT and CST. The patient's heart rate, oxygen saturation and blood pressure will be recorded before and after the tests. In addition, the patient's heart rate and oxygen saturation will be recorded after each level passed in CST.

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