NCT05546294

The Effects of Exercise on Serum BDNF and Irisin Levels in Patients With Rheumatoid Arthritis

The Effects of Aerobic Exercise on Sleep Quality, Fatigue, Quality of Life, Depression, Serum BDNF and Irisin Levels in Patients With Rheumatoid Arthritis: A Prospective Randomized Controlled Study

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 151 (actual)
• Sponsor: Afyonkarahisar Health Sciences University · Academic / Other
• Sex: All
• Age: 20 Years – 60 Years
• Healthy volunteers: Not accepted

Summary

The aim of our study is to investigate the effects of aerobic exercise on sleep quality, fatigue, quality of life, depression and serum BDNF and irisin levels, which are important biomarkers of sleep in patients with rheumatoid arthritis.

Detailed description

Rheumatoid arthritis (RA) is a chronic, progressive, autoimmune disease characterized primarily by inflammation of synovial joints and tendon sheaths of synovial nature. Sleep disturbance in RA patients has a negative impact on their quality of life in addition to their mental and physical health. Exercise has been identified as an important non-pharmacological factor in improving sleep quality and mood in patients with rheumatoid arthritis. Irisin is a myokine and adipokine that has anti-inflammatory effects and can help regulate energy expenditure. It is secreted from skeletal muscles after exercise, as well as from other tissues such as the liver, nerves, heart, kidneys and skin. It has been observed that serum irisin levels are decreased in RA patients with poor sleep quality compared to RA patients with good sleep quality. BDNF, one of the biochemical parameters evaluating sleep, is a signal protein encoded by the BDNF gene located on chromosome 11. It belongs to the neurotrophin family, which regulates the survival, development and function of neurons. Neuronal activity is a powerful stimulant that elicits BDNF production. Thus, activation of brain areas associated with motor control during exercise contributes to increased BDNF production in the brain and additionally in plasma. During acute exercise, irisin stimulates BDNF expression in the hippocampus of the brain. In addition to the circadian variation of plasma BDNF, the blood concentration of BDNF has been shown to increase acutely in response to aerobic exercise that does not include resistance exercise. Moreover, it has been reported that people with higher basal serum BDNF concentrations have lower REM sleep and therefore less sleep disturbances. This investigation was designed as prospective randomized controlled study. Participants were randomized into 3 groups; RA patients receiving aerobic and home exercise, RA patients receiving only home exercise and healthy control group. As evaluation parameters, DAS28 Score, SF (Short form) -36 Quality of Life Scale, Pittsburgh Sleep Quality Index (PSQI), Fatigue Severity Scale (FSS), Beck Depression Inventory (BDI), 6 Minute Walk Test and Borg Scale will be evaluated with. It was planned that the evaluations were made and recorded by a blinded physician to the all patients with rheumatoid arthritis at the beginning of the treatment and at the end of the treatment.In the healthy control group, the evaluation parameters will be examined only once at the beginning of the study. At the beginning of the treatment and at the end of the treatment (4th week), serum BDNF and irisin levels will be tested using the ELISA kit, with blood samples taken from the RA patients in the early morning. It will be checked whether there is a difference between the basal serum BDNF and irisin levels of rheumatoid arthritis patients with the blood sample taken only once in the early morning from the healthy control group.

Conditions

• Rheumatoid Arthritis
• Sleep Quality
• Aerobic Exercise

Interventions

Type	Name	Description
DEVICE	Aerobic and home exercise	A total of 20 sessions of aerobic exercises using bicycle ergometer, five times a week and once a day for four weeks, were applied to the patients.Maximum heart rate was calculated for each subject (220 - age) and a heart rate monitor will be used to follow subjects' heart rate during aerobic exercise. Then the patients were showed a daily home exercise program to apply once a day at their home. As a daily home exercise program:ROM exercises and strengthening exercises for major muscle groups (such as abdominal muscles, erector spinae, hamstring, quadriceps, hip flexors, strengthening exercises for all extremities) were showed. At the beginning of the treatment and at the end of the treatment (4th week), serum BDNF and irisin levels will be tested using the ELISA kit, with blood samples taken from the RA patients in the early morning.
OTHER	Home exercise	The patients were showed only a daily home exercise program to apply once a day at their home. As a daily home exercise program:ROM exercises and strengthening exercises for major muscle groups (such as abdominal muscles, erector spinae, hamstring, quadriceps, hip flexors, strengthening exercises for all extremities) were showed. At the beginning of the treatment and at the end of the treatment (4th week), serum BDNF and irisin levels will be tested using the ELISA kit, with blood samples taken from the RA patients in the early morning.
OTHER	Healthy control group	Serum BDNF and irisin levels will be tested using the ELISA kit, with blood samples taken only once from healthy control group in the early morning. It will be checked whether there is a difference between the basal serum BDNF and irisin levels of rheumatoid arthritis patients and healthy control group.

Timeline

• Start date: 2021-03-01
• Primary completion: 2022-12-01
• Completion: 2023-02-20
• First posted: 2022-09-19
• Last updated: 2023-02-28

Locations

1 site across 1 country: Turkey (Türkiye)