NCT06759376

Brief Summary

Chronic kidney disease (CKD) is characterised by kidney damage that persists for 3 months or longer or an estimated glomerular filtration rate (eGFR) below 60 mL/min/1.73 m² and is assessed in 6 categories. According to this categorisation, when stage 4 CKD progresses, patients are offered several options for renal replacement therapy. In the last stage of CKD, stage 5, renal replacement therapies including dialysis and kidney transplantation are used. Haemodialysis (HD) is a frequently used life-saving treatment method that removes harmful waste substances accumulated in the body, helps to maintain kidney function, provides fluid-electrolyte balance, prolongs life by managing uremic symptoms. Patients with ESRD are exposed to many health problems such as water-salt balance abnormalities, hypertension, hyperkalemia, metabolic acidosis, hyperphosphatemia, anaemia, cardiovascular disease. While the problems experienced are controlled with HD treatment, the treatment process and the continuation of life dependent on a machine cause life-threatening acute (hypotension, nausea, vomiting, muscle cramps, itching, pain, etc.) and chronic complications (pericarditis, hypertension, anaemia, hepatitis infections, etc.). In addition, due to these complications, HD patients may have problems that cannot be ignored such as deterioration in general health perception, sleep disturbance, anxiety, depression, stress, and difficulties in fulfilling responsibilities due to psychosocial problems. Intradialytic muscle cramp, which develops acutely during HD and is experienced at least once by patients, frequently manifests as involuntary muscle contractions in the lower extremities. The aetiology of intradialytic muscle cramp includes hypotension, electrolyte mineral disorders, high ultrafiltration (UF), excess weight gain between two HDs and carnitine deficiency. In the pharmacological treatment of this complication, which should be managed acutely, intravenous saline solution and hypertonic glucose administration are prominent, but high-quality evidence on the effectiveness of these treatments is needed. While the results of interventions such as aromatherapy, reflexology, massage, stretching-relaxation exercises, hot-cold applications etc. in intradialytic muscle cramp have been reached, the lack of evidence for vibration massage is striking. Management of intradialytic muscle cramp is important for the HD adequacy of patients and failure to manage it may lead to fatal complications such as hypertension, hypervolemia, pulmonary oedema and left ventricular failure due to inadequate HD sessions. It has also been reported that sleep and quality of life are adversely affected in cases where intradialytic muscle cramp cannot be managed; shortening of one HD session per week leads to increased mortality rates, depression and anxiety levels and stress. Salivary cortisol is a useful biomarker often used as a marker of psychological stress. Salivary cortisol levels peak approximately 20 minutes after an acute stress event. Massage, which is among independent nursing interventions, is a manipulation that provides physical and psychological relaxation by mechanically stimulating muscle tissues. During massage, nurses can apply euphlorage, petrissage, friction, tapotman and vibration. Vibration massage is applied to improve muscle atrophy and bone density caused by microgravity and immobilisation. Static stretching exercise, another intervention in intradialytic muscle cramp management, reduces muscle stiffness and tension by increasing muscle flexibility and range of motion by stimulating neural activities. These exercises reduce the risk of injury to joints, muscles and tendons by stimulating the formation of chemicals that allow the connective tissue to move easily and are recommended for the prevention of muscle cramps.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 17, 2024

Completed
20 days until next milestone

First Posted

Study publicly available on registry

January 6, 2025

Completed
11 months until next milestone

Study Start

First participant enrolled

November 21, 2025

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 21, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 21, 2026

Completed
Last Updated

April 21, 2026

Status Verified

April 1, 2026

Enrollment Period

3 months

First QC Date

December 17, 2024

Last Update Submit

April 16, 2026

Conditions

Keywords

HemodialysisStressintradialytic muscle crampNurseVibration MassageSalivary CortisolStatic Stretching Exercise

Outcome Measures

Primary Outcomes (3)

  • intradialytic muscle cramp (severity)

    * Visual Analog Scale questioning will be performed every 2 minutes during the intradialytic cramp period. * The effect of 10 minutes of vibration massage and static stretching exercise interventions on the severity of intradialytic muscle cramp will be examined.

    1 year

  • Salivary cortisol levels

    * The stress level of the patient during intradialytic muscle cramp will be quantitatively assessed by salivary cortisol testing. * Salivary cortisol tests will be taken again at 20 minutes to evaluate the effectiveness of vibration massage and static stretching exercise interventions applied to intradialytic muscle cramp for 10 minutes and to evaluate which intervention is superior. * The effect of vibration massage and static stretching exercise on salivary cortisol level will be evaluated.

    1 year

  • intradialytic muscle cramp (duration)

    * Intradialytic muscle cramp duration will be measured with a stopwatch. * The effect of 10 minutes of vibration massage and static stretching exercise interventions on muscle cramp duration will be examined.

    1 year

Secondary Outcomes (1)

  • Acute stress

    1 year

Study Arms (3)

Vibration (Group A)

EXPERIMENTAL

Vibration massage

Other: Vibration massage

Stretching (Group B)

EXPERIMENTAL

Static stretching exercise

Other: Static stretching exercise

Control (Group C)

OTHER

Usual care

Other: Usual Care

Interventions

* Initiation of the stopwatch with the onset of intradialytic muscle cramp, * Taking a salivary cortisol test, * Performing vibration massage with a vibration massage device for 10 minutes, * Visual Analog Scale questioning every 2 minutes during intradialytic muscle cramp, * Stopping the stopwatch as soon as the patient states that the intradialytic muscle cramp has ended, * Repeat salivary cortisol test at 20 minutes from the onset of intradialytic muscle cramp.

Vibration (Group A)

* Initiation of the stopwatch with the onset of intradialytic muscle cramp, * Taking a salivary cortisol test, * Perform static stretching exercise for 10 minutes, * Visual Analog Scale questioning every 2 minutes during intradialytic muscle cramp, * Stopping the stopwatch as soon as the patient states that the intradialytic muscle cramp has ended, * Repeat salivary cortisol test at 20 minutes from the onset of intradialytic muscle cramp.

Stretching (Group B)

* Initiation of the stopwatch with the onset of intradialytic muscle cramp, * Taking a salivary cortisol test, * Usual care, * Visual Analog Scale questioning every 2 minutes during intradialytic muscle cramp, * Stopping the stopwatch as soon as the patient states that the intradialytic muscle cramp has ended, * Repeat salivary cortisol test at 20 minutes from the onset of intradialytic muscle cramp.

Control (Group C)

Eligibility Criteria

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

You may qualify if:

  • years of age and over, conscious, Turkish speaking and understanding, accepting the research,
  • Patients with normal body mass index (18.5-24.9) \[Since body mass can affect the distribution of vibration and cortisol level, it was planned to include patients with normal body mass index in the sample\].
  • Patients with intradialytic muscle cramp in the lower extremities will be included \[Although intradialytic cramp often occurs in the lower extremities, vibration massage and static stretching exercise will be applied to the same muscle group (gastrocnemius and soleus muscles) in the lower extremities to keep the variables under control\].

You may not qualify if:

  • Intradialytic muscle cramps in the upper extremity,
  • Intradialytic muscle cramps, those with incomplete tissue integrity in the region and thrombophlebitis, hematoma, etc. \[In order for vibration massage to be performed, individuals must have skin integrity and normal blood characteristics.\]
  • Those with foot deformation,
  • Those who use anti-inflammatory, analgesic drugs and those who additionally use adjuvant therapy (antidepressants, anticonvulsants, muscle relaxants, etc.) up to 4 hours before the HD session, as intradialytic muscle cramps and their duration may be affected,
  • Those who are taking routine cortisone treatment and medications with hormonal effects (oral contraceptives, steroid-containing bronchodilators, etc.) so that the salivary cortisol test is not affected.
  • Alcohol users,
  • Hypoglycemic patients,
  • Patients with psychiatric diagnosis and those using medication related to this diagnosis,
  • Patients with mouth ulcers, inflammation, etc.
  • Patients who ate or drank anything other than water, chewed gum, or consumed foods or beverages containing citric acid 15 minutes before intradialytic muscle cramping,
  • Patients who use high doses of biotin (\>5 mg/day) and whose last biotin treatment has not passed 8 hours.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Private Anatolian Dialysis Center

Eskişehir, Turkiye, Turkey (Türkiye)

Location

Related Publications (28)

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    PMID: 39100939BACKGROUND
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    PMID: 27383068BACKGROUND
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    PMID: 34780500BACKGROUND
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MeSH Terms

Conditions

Renal Insufficiency, Chronic

Interventions

Muscle Stretching Exercises

Condition Hierarchy (Ancestors)

Renal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • AyÅŸe Özkaraman, Professor

    Eskisehir Osmangazi University Faculty of Health Sciences

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Specialist Nurse

Study Record Dates

First Submitted

December 17, 2024

First Posted

January 6, 2025

Study Start

November 21, 2025

Primary Completion

February 21, 2026

Study Completion

February 21, 2026

Last Updated

April 21, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

Summary data can be provided starting 6 months after publication.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
July - December 2025
Access Criteria
Academic staff can request this information. Data can be shared with the permission of all researchers involved in the study.

Locations