The purpose of the study is to compare the effect of resistance exercise and aerobic exercise on intradialytic hypotension in patients undergoing hemodialysis.
Chronic kidney disease (CKD) is one of the leading causes of global morbidity and mortality. In the 2019 Global Burden of Disease study, CKD was among the top ten risks associated with the highest number of deaths worldwide, with a death toll of 3.16 million deaths. Patients undergoing dialysis in Egypt in 2020 are mostly men (59%), and half of them are aged ≥55 years. Hypertension is the most common cause of end-stage kidney disease at 41%, followed by diabetes at 14%, whereas glomerulonephritis is the primary diagnosis in 3% of patients undergoing dialysis. Hemodialysis (HD), continuous ambulatory peritoneal dialysis, and kidney transplantation are the three main modalities of renal replacement therapy. Hypotension is the most reported complication of routine outpatient HD treatments. Toxic substances, also called uremic toxins, in the blood result in malaise, paraesthesia, mental impairment, peripheral circulatory disturbance, and muscle dysfunction. While patients exercise during dialysis, those toxins move through the dialyzer with a large flux from the tissue to the vascular compartment. It results in increased muscle blood flow and opened capillary surface area. Besides, the intradialytic exercise showed not only better adoption and adherence but also a lower drop-out and greater compliance. So, this study will investigate the effect of resistance and aerobic exercises on intradialytic hypotension in patients undergoing hemodialysis. thus, may affect the quality of life in chronic kidney disease dialysis patients. The results of this study may shed light on which of the selected exercises can decrease the risk of Intradialytic hypotension to help dialysis patients. To our knowledge, there are no previous similar studies.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
75
The participants receive hemodialysis for 4 hours, 3 times per week
The participants will receive intradialytic resistive exercise for 12 weeks (3 sessions/ week). Duration: 30 minutes during the first 2 hours of each dialysis session in a recumbent position or seated position. Time of session: The program starts with a warm-up phase which is 3:5 minutes in the form of light aerobic and stretching exercises for big muscles and ends with a cooling down phase which is 3:5 in the form of light aerobic exercise. The resistance exercises include exercises for the big muscles of only the Lower Limbs (LL) muscles of single and multiple-joint which are:1- Knee extensors, 2- Knee flexors, 3- Hip flexors, 4- Hip abductors and adductors. using sandbags of different weights. Sandbag weights are placed on the distal third of the tibia for LL exercises. Intensity: On the Borg's Scale of Perceived Exertion, which will be measured every 5 minutes during exercise.
Yasmin Mohamed Mahmoud Gouda
Cairo, Egypt
Systolic blood pressure measurement
Blood pressure (BP) will be measured on the non-access arm using automatic BP cuffs attached to the patient's hemodialysis machine which is used routinely at each respective hemodialysis clinic. As well as for ankle brachial pressure index. Systolic blood pressure measurements will be taken pre-hemodialysis, at hemodialysis start (baseline), post-hemodialysis, and every 15 minutes during each dialysis session. BP measurements will be taken before selected exercise and after exercise.
Time frame: 12 weeks
Diastolic blood pressure measurement
Blood pressure (BP) will be measured on the non-access arm using automatic BP cuffs attached to the patient's hemodialysis machine which is used routinely at each respective hemodialysis clinic. As well as for ankle brachial pressure index. diastolic blood pressure measurements will be taken pre-hemodialysis, at hemodialysis start (baseline), post-hemodialysis, and every 15 minutes during each dialysis session. BP measurements will be taken before selected exercise and after exercise.
Time frame: 12 weeks
Ankle-Brachial Index (ABI)
This non-invasive test compares blood pressure in the ankles to blood pressure in the arms. An ABI below 0.9 usually suggests peripheral artery disease (PAD), a common cause of circulatory issues.
Time frame: 12 weeks
Peripheral oxygen saturation
Pulse oximetry is a non-invasive method used to measure the oxygen saturation level (SpO2) in the blood, providing an estimate of how much oxygen the hemoglobin in red blood cells is carrying. It provides data on oxygen delivery to extremities, which may be impaired in circulation issues. Normally, its value is 95-99%.
Time frame: 12 weeks
Creatinine level
Blood analysis will be used to measure creatinine level for all patients before and after intervention. Its values vary by sex; 0.6-1.2 mg/dl for men and 0.5-1.1 mg/dl for women.
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Patients with chronic kidney disease will receive an intradialytic aerobic exercise for 12 weeks (3 sessions/ week). Duration: 30 minutes during the first 2 hours of each dialysis session using a stationary bicycle ergometer in a supine position or seated position. Time of session: The warming up and the cooling down phase consists of 5:10 minutes of slow Pedaling. the main exercise phase consisted of 20 minutes of cycling. Intensity: The use of the Borg's Scale of Perceived Exertion (RPE) scale enables the intensity of the exercise to be adapted According to the tolerance of each patient. The use of the RPE scale enables the intensity of the exercise to be adapted According to the tolerance of each patient, the aim was to obtain between 11 light And 14 somewhat hard.
Time frame: 12 weeks
blood urea level
Blood analysis will be used to measure blood urea for all patients before and after intervention. its normal value ranges from 17-43 mg/dl.
Time frame: 12 weeks
blood urea nitrogen test
Blood analysis will be used to measure blood urea nitrogen for all patients before and after intervention. its normal value ranges from 7-20 mg/dl.
Time frame: 12 weeks
serum albumin
Blood analysis will be used to measure serum albumin for all patients before and after intervention. its normal value in adults is typically 3.5-5.0 g/L.
Time frame: 12 weeks
Six minutes walking Test (6 MWT)
A 6-minute walk test (6MWT) is a major physical test in the dialysis population. Its value lies in the fact that it is a self-paced test of walking capacity and functional ability of daily physical activities which are mostly performed at submaximal level of exertion. 6MWT is a major physical tests in dialysis population. Its value lies in the fact that it is a self-paced test of walking capacity and reflects the functional ability at daily physical activities which are mostly performed at submaximal level of exertion. It is carried out in a 30 m long corridor. Subjects will be instructed to walk from end to end of the corridor and to cover the greatest distance possible in six minutes. Patients who need rest due to dyspnea will be instructed to continue walking as soon as they feel able, but the timer doesn't stop.
Time frame: 12 weeks
The Kidney Disease Quality of Life Short Form (KDQOL-SF)
is a self-reported measure of health that particularly concerns individuals with chronic kidney disease (CKD). The KDQOL-36 is a short version of KDQOL-SF that includes only 36 questions. The survey can be administered in 3-5 min, which saves both time and resources. Each subscale score ranges between 0 and 100, with increasing values equating to better health.
Time frame: 12 weeks