NCT07820514

Brief Summary

The goal of this clinical trial is to learn whether different types of exercise performed during hemodialysis are safe, well tolerated, and beneficial for adults receiving maintenance hemodialysis. The main questions it aims to answer are:

  • Are aerobic exercise using a cycle ergometer and resistance exercise using elastic bands well tolerated during hemodialysis?
  • Do these exercise programs improve physical function, body composition, quality of life, and dialysis-related outcomes compared with standard care? Researchers will compare aerobic exercise, resistance exercise, and standard hemodialysis care to evaluate differences in tolerance and health outcomes. Participants will:
  • Be assigned to one of three groups: cycle ergometer exercise, elastic-band resistance exercise, or standard care.
  • Attend hemodialysis sessions as scheduled.
  • Complete physical performance and body composition assessments at baseline and after 6 months.
  • Complete questionnaires about health and quality of life. The results of this study may help identify effective exercise strategies to improve health and well-being in people receiving long-term hemodialysis treatment.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
312

participants targeted

Target at P75+ for not_applicable

Timeline
4mo left

Started Jun 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress85%
Jun 2024Mar 2027

Study Start

First participant enrolled

June 1, 2024

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2025

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

August 24, 2026

Completed
22 days until next milestone

First Posted

Study publicly available on registry

September 15, 2026

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2027

Expected
Last Updated

September 15, 2026

Status Verified

September 1, 2026

Enrollment Period

1.3 years

First QC Date

August 24, 2026

Last Update Submit

September 14, 2026

Conditions

Keywords

hemodialysisintradialytic exerciseaerobic trainingresistance trainingsarcopeniaquality of life

Outcome Measures

Primary Outcomes (1)

  • Incidence of intradialytic intolerance and hemodynamic instability

    Exercise tolerability will be evaluated through the incidence of intradialytic intolerance events and the maintenance of hemodynamic stability during hemodialysis sessions. Hemodynamic monitoring will include systolic blood pressure, diastolic blood pressure, mean arterial pressure, and heart rate measured before, during, and after exercise sessions. Clinical signs and symptoms of exercise intolerance, including hypotension, dizziness, muscle cramps, nausea, premature interruption of exercise, or other adverse events occurring during dialysis, will be recorded. Outcomes will be compared among cycle ergometer exercise, elastic-band resistance training, and combined exercise programs to assess the relative tolerability and safety of each intervention.

    Baseline to 6 months

Secondary Outcomes (16)

  • Maximal workload during cycle ergometer stress testing

    Baseline to 6 months

  • Six-minute walk test distance

    Baseline and 6 months

  • Step-test performance

    Baseline and 6 months

  • Chair-stand test performance

    Baseline and 6 months

  • Handgrip strength

    Baseline and 6 months

  • +11 more secondary outcomes

Study Arms (3)

Cycle ergometer

ACTIVE COMPARATOR

Participants performed supervised intradialytic aerobic exercise using a cycle ergometer during the first 2 hours of hemodialysis sessions. Exercise was conducted three times per week for a total of 150 minutes per week at moderate intensity, corresponding to a Borg Rating of Perceived Exertion of 12-13. Training sessions were supervised by qualified exercise professionals and monitored by dialysis nurses to ensure safety and adherence.

Behavioral: Intradialytic aerobic exercise using a cycle ergometer

Elastic band resistance training

ACTIVE COMPARATOR

Participants performed supervised intradialytic resistance exercise using progressive color-coded elastic bands during the first 2 hours of hemodialysis sessions. Training was conducted three times per week for a total of 150 minutes per week at moderate intensity and targeted both upper and lower limbs. Resistance was progressively adjusted according to individual tolerance and correct exercise execution. Sessions were supervised by exercise professionals and monitored by dialysis nurses.

Behavioral: Intradialytic elastic-band resistance exercise

Control

NO INTERVENTION

Participants received standard hemodialysis care and continued their usual activities during dialysis sessions without participation in a structured intradialytic exercise program. Clinical assessments and follow-up evaluations were performed according to the study protocol.

Interventions

Participants performed supervised intradialytic aerobic exercise using a cycle ergometer during the first 2 hours of hemodialysis sessions. Exercise was conducted three times weekly for a total of 150 minutes per week at moderate intensity (Borg Rating of Perceived Exertion 12-13). Sessions were supervised by exercise professionals and monitored by dialysis nurses to ensure safety and adherence.

Cycle ergometer

Participants performed supervised intradialytic resistance exercise using progressive color-coded elastic bands during the first 2 hours of hemodialysis sessions. Training was conducted three times weekly for a total of 150 minutes per week at moderate intensity and targeted both upper and lower limbs. Resistance levels were progressively adjusted according to individual tolerance and proper exercise execution.

Elastic band resistance training

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥18 years.
  • Receiving maintenance hemodialysis for more than 3 months.
  • Clinically stable condition.
  • Ability and willingness to provide written informed consent.

You may not qualify if:

  • Unstable angina.
  • Uncontrolled hypertension.
  • Any medical condition judged by the treating nephrologist to contraindicate or make intradialytic exercise unsafe

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

NefroCenter Dialysis Centers

Torre del Greco, 80059, Italy

RECRUITING

Related Links

MeSH Terms

Conditions

Sarcopenia

Condition Hierarchy (Ancestors)

Muscular AtrophyNeuromuscular ManifestationsNeurologic ManifestationsNervous System DiseasesAtrophyPathological Conditions, AnatomicalPathological Conditions, Signs and SymptomsSigns and Symptoms

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 24, 2026

First Posted

September 15, 2026

Study Start

June 1, 2024

Primary Completion

October 1, 2025

Study Completion (Estimated)

March 1, 2027

Last Updated

September 15, 2026

Record last verified: 2026-09

Locations