Vibration Massage, Static Stretching Exercise, Intradialytic Muscle Cramps and Stress
Effects of Vibration Massage and Static Stretching Exercise on Intradialytic Muscle Cramp and Salivary Cortisol Levels: A Randomized Controlled Trial
1 other identifier
interventional
30
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Nov 2025
Shorter than P25 for not_applicable
1 active site
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
First Submitted
Initial submission to the registry
December 17, 2024
CompletedFirst Posted
Study publicly available on registry
January 6, 2025
CompletedStudy Start
First participant enrolled
November 21, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 21, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
February 21, 2026
CompletedApril 21, 2026
April 1, 2026
3 months
December 17, 2024
April 16, 2026
Conditions
Keywords
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)
EXPERIMENTALVibration massage
Stretching (Group B)
EXPERIMENTALStatic stretching exercise
Control (Group C)
OTHERUsual 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.
* 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.
* 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.
Eligibility Criteria
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
- Figen Akaylead
Study Sites (1)
Private Anatolian Dialysis Center
Eskişehir, Turkiye, Turkey (Türkiye)
Related Publications (28)
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MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Ayşe Özkaraman, Professor
Eskisehir Osmangazi University Faculty of Health Sciences
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
- 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.
Summary data can be provided starting 6 months after publication.