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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT06055283
Other study ID # ECRC/CKD
Secondary ID
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date November 2023
Est. completion date December 31, 2026

Study information

Verified date September 2023
Source University of the State of Santa Catarina
Contact Jéssica Canizelli Gonçalez, Ms
Phone 47996087774
Email jessicacgoncalez@hotmail.com
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The goal of this clinical trial is to evaluate the effects of intradialytic aerobic exercise on muscle capacity, functionality and motivation of patients with chronic kidney disease undergoing hemodialysis. The main question it aims to answer are: • Is intradialytic aerobic exercise at moderate intensity effective in improving peripheral muscle function, functional status and motivation in patients with chronic kidney disease?


Description:

The progressive and irreversible advance of chronic kidney disease generates the systemic involvement of the organism and, consequently, the impairment of functionality and quality of life. Hemodialysis therapy is a strategy to increase survival and its long implementation time appears as a space for physiotherapeutic interventions in delaying functional impairment in these individuals. The objective will be to evaluate the effects of intradialytic aerobic exercise on muscle capacity, functionality and motivation of patients with chronic kidney disease undergoing hemodialysis. Patients with chronic kidney disease who undergo hemodialysis at TR São José - Clínica de hemodialysis LTDA (São José/SC) will be evaluated. Patients will be randomized, via a convenience sample, into two groups: intradialytic aerobic exercise group and control group. Interventions will take place within the first two hours of hemodialysis, using a portable cycle ergometer. Intensity will be controlled by heart rate and BORG Perceived Exertion Index. The training, for both groups, will be three times a week, for a period of three months. The aerobic exercise intensity will be moderate, in the percentage of maximum heart rate from 55 to 74% and BORG 4 to 6. A portable cycle ergometer will be used. The evaluations will be in the baseline period, after each complete month and after six months of the end. There will be three days of assessments at the hemodialysis clinic prior to renal replacement therapy and seven days using a home device, following the sequence: baseline blood sample collection, anthropometric assessment, vital signs, BORG, spirometry, mean quadriceps thickness, capacity functional status (six-minute step test), cognitive status (Montreal Cognitive Assessment-BR), quality of life (Kidney Disease And Quality-Of-Life Short Form), sleep quality (Pittsburgh Sleep Quality Index), state motivational (Behavior Regulation Exercise Questionnaire - BREQ3), muscle strength and endurance and daily physical activity. The sample calculation will be performed a posteriori, with Gpower software, based on the variables of the six-minute step test and muscle resistance value. Data will be systematized in the Statistical Package for Social Sciences version 20.0. Initially, descriptive statistics will be performed. To characterize the sample, the following variables will be considered: age, gender, anthropometric data, spirometric parameters, body composition, urea and creatinine clearance, cognitive status. Data distribution will be evaluated using the Shapiro-Wilk test or a non-parametric analogue. To compare the response of the outcome variables between the groups, the ANOVA two-way test of repeated measures, or a non-parametric analogue, will be used. To verify relationships between numeric variables, Pearson's correlation coefficient or non-parametric analogue will be used. The significance level adopted for the statistical treatment will be 5% (p < 0.05).


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 90
Est. completion date December 31, 2026
Est. primary completion date June 14, 2026
Accepts healthy volunteers No
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria: - diagnosis of chronic kidney disease undergoing renal replacement therapy via hemodialysis - aged 20 to 65 years - low body mass index at overweight (21 kg/m2 to 29.9 kg/m2) - regular renal replacement therapy via hemodialysis for 6 months, without acute complications related to the diagnosis and/or comorbidities for the period of 3 months prior to the evaluation and intervention. Exclusion Criteria: - patients who do not reach a score equal to or above 20 assessed by the Mini Mental State Examination - severe heart failure according to the New York Heart Association classification - musculoskeletal alteration that prevents the correct execution of the assessment activities - who have participated in other exercise protocols in the last 6 months prior to the present study - patients who show signs of clinical instability during the hemodialysis procedure or after training for two consecutive sessions will be excluded throughout the protocol.

Study Design


Intervention

Other:
Aerobic exercise
The training group will receive aerobic exercise and the intensities will be controlled considering the percentage of estimated maximum heart rate. The training will be performed with a cycle ergometer with a total of 40 minutes of intradialytic aerobic exercise in the training group. To reduce the effects of intolerance to aerobic exercise, a week of adaptation will be performed, with a frequency of three sessions, in the first two hours of hemodialysis, lasting 40 minutes at maximum heart rate intensity of up to 74% and BORG up to 4 (low intensity). Afterwards, the patients will perform the prediction training for 12 weeks, at the frequency of three training sessions per week in the first two hours of hemodialysis. Each training session will start with a 5-minute warm-up at low intensity, 30 minutes of main training with maximum heart rate intensity 55% to 74% and BORG 5 to 7 (moderate intensity) and will end with a 5-minute cool-down at low intensity.

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
University of the State of Santa Catarina

Outcome

Type Measure Description Time frame Safety issue
Primary six minute step test A step 20 centimeters high will be used and the patient will be instructed to go up and down it as many times during the 6 minutes, according to free cadence and will be instructed not to use the upper limbs 12 weeks
Secondary muscle strength measured by dynamometry, the records will be in newtons. 12 weeks
Secondary Daily life physical activity number of steps for seven days by triaxial accelerometer 12 weeks
Secondary Behavior Regulation Questionnaire for Physical Exercise The questionnaire ranges from 0 to 24 for self-regulation indices and 0 to 4 for each type of regulation, namely external, introjected, identified, integrated and intrinsic regulation 12 weeks
Secondary index of self-determination and basic psychological needs The score varies from 1 to 5, with 1 being total disagreement and 5 total agreement for variables related to the link between competence and autonomy. 12 weeks
Secondary Pittsburg Sleep Quality Index The questionnaire quantifies sleep quality, calculated between seven skills. The final result varies from good sleep quality (0-4), poor sleep quality (5-10) and the presence of sleep disorders (above 10). 12 weeks
Secondary Montreal Cognitive Assessment 8 cognitive domains (visual-spatial execution, naming, memory, attention, language, abstraction, delayed recall and orientation), with a score from 0 to 30. The cut-off point for renal hemodialysis patients is less than or equal to 24, and the the higher the score, the better the vascular cognitive function 12 weeks
Secondary blood sample The analyzes carried out will be regarding the marker of muscle trophism (insulin-like growth factor type 1), pro-inflammatory cytokines (tumor necrosis factor - TNF-alpha) and anti-inflammatory cytokines (interleukin 10 - IL-10). 12 weeks
Secondary lower limb resistance Measured by dynamometry, the records will be in tolerated seconds. 12 weeks
Secondary Kidney Disease and Quality-of-Life - Short Form eight dimensions, ten items for physical functioning, four items for limitations caused by physical health problems, three items for limitations caused by emotional health problems, two items for social functioning, five items for mental health, two items for pain, four items for vitality, energy and fatigue, five items for perceptions of general health and one item for current health status compared to a year ago, which is computed separately.The degree of commitment is measured using values ranging from zero (highest degree of commitment) to 100 (no commitment). Therefore, the higher the score obtained, the better the quality of life. 12 weeks
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