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Not yet recruitingNCT06055283IAECKDUpdated Sep 26, 2023

Effects of Intradialytic Aerobic Exercise in Chronic Kidney Patients

An interventional study of Aerobic exercise in Chronic Kidney Diseases, sponsored by University of the State of Santa Catarina. Not yet recruiting. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2023-09-26.

Sponsored by University of the State of Santa Catarina · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jun 2026, 4 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
90
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study 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?
Read the detailed 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).

02

Conditions studied

  • Chronic Kidney Diseases

Keywords

  • Chronic Kidney Disease
03

In context

Renal Insufficiency, Chronic

3,224 studies on the registry are indexed under Renal Insufficiency, Chronic; 706 are open to participants now.

This study's planned enrollment of 90 is above the median of 74 across 2,229 interventional studies indexed under Renal Insufficiency, Chronic.

Browse Renal Insufficiency, Chronic studies →

Lead sponsor

University of the State of Santa Catarina is the lead sponsor of 25 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

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

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.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
90 participants (estimated)

Study arms

  • Experimental
    Training group

    Aerobic exercise training on moderate intensity.

    Other: Aerobic exercise

  • No intervention
    Control group

    Monitoring.

Interventions

  • OtherAerobic 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.

06

What researchers measure

Primary outcomes

  1. 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

    Time frame: 12 weeks

Secondary outcomes

  1. muscle strength

    measured by dynamometry, the records will be in newtons.

    Time frame: 12 weeks

  2. Daily life physical activity

    number of steps for seven days by triaxial accelerometer

    Time frame: 12 weeks

  3. 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

    Time frame: 12 weeks

  4. 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.

    Time frame: 12 weeks

  5. 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).

    Time frame: 12 weeks

  6. 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

    Time frame: 12 weeks

  7. 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).

    Time frame: 12 weeks

  8. lower limb resistance

    Measured by dynamometry, the records will be in tolerated seconds.

    Time frame: 12 weeks

  9. 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.

    Time frame: 12 weeks

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 26, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06055283
Lead sponsor
University of the State of Santa Catarina
Responsible party
Jéssica Canizelli Gonçalez (doctoral student, University of the State of Santa Catarina) — Principal investigator
First posted
Sep 26, 2023
Start date
Nov 2023 (estimated)
Primary completion
Jun 14, 2026 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
Sep 26, 2023

Study contacts

Jéssica Canizelli Gonçalez, Ms
Contact
jessicacgoncalez@hotmail.com
47996087774 ext. +55
Elaine Paulin, PhD
Contact
elaine.paulin@udesc.br
(48) 3664-8600 ext. +55

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2023. You cannot join it, but the record below documents what was studied.

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