Transcutaneous electric nerve stimulation (TENS) is widely used for the treatment of adhesive capsulitis, nevertheless, its potential impact on heart physiology has not been well established.
The investigator explored if TENS at shoulder region affect heart rhythm and the machinery involved.
Subjects were stratified into groups received sham stimulation (TENS-S) and TENS on either the right (TENS-R) or left (TENS-L) shoulder. A built-in waveform for treating adhesive capsulitis with a maximal tolerable intensity below the pain threshold was applied to subjects form a commercial TENS equipment for 5 min. The electrocardiogram (ECG) and heart rate (HR) were continuously recorded and the ECG was off-line transferred into power spectrum for analysis.
Condition or disease | Intervention/treatment | Phase |
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Transcutaneous Electric Nerve Stimulation Heart Rate | Other: transcutaneous electric stimulation | Not Applicable |
Study design This study complied with the Declaration of Helsinki, and all protocols were approved by the ethics committee of Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan. All the participants gave written informed consent before experiments. 32 subjects (20-51 years old) were included in the statistical analysis. Participants were eligible if they have cardiovascular illnesses, major mental conditions, or severe inflammation. Participants were allocated to groups that received sham stimulation (TENS-S) and TENS on the right and left shoulder (TENS-R and TENS-L, respectively).
ECG and HR recordings Using a monitor lead, electrocardiogram (ECG) was recorded through electrodes connected to a recording system with a sampling rate of 5,000 samples/sec. The ECG and the HR calculated by a built-in rate meter were continuously recorded and displayed on a monitor. For TENS caused marked artifacts in ECG tracings, HR derived from ECG were confirmed off-line by manual examination.
TENS stimulation To mimicking clinical scenarios, a commercial TENS equipment was used throughout this study. A built-in waveform recommended for treating capsulitis in the user's manual was used for stimulation (triple pulses with 1 ms pulse durations separated by a 1 ms intervals were ramps up and down between 2 to 10 Hz within 20 sec for 3 min and then ramps up from 10 to 200 Hz within 20 sec and kept at 200 Hz for 2 min; supplementary data 1). The current intensity was adjusted to the maximal tolerance level below the pain threshold. A pair of stimulating electrode was placed in the front of the should at the level of the sternal notch at about 2 finger-width from the mid-clavicle line, and a pair of dispersive electrode was placed at the back of shoulder opposite to the stimulating electrodes. Participants kept a stationary supine position and was asked to refrain from moving during recording. Before the stimulation, there was an equilibrium period for at least 10 min, and then the recording started. TENS was turned on for 5 min at 5 min after the baseline recording, and the recording continued until 10 min after the offset of stimulation. Parameters of the sham stimulation was identical to TENS stimulation on the right shoulder excepting the equipment was left un-powered.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 32 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Difference of group was compared between groups |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Prevention |
Official Title: | Shoulder Transcutaneous Electric Nerve Stimulation Decelerates Heart Rhythm of Subjects Via Potentiating Vagal Tone |
Actual Study Start Date : | July 22, 2017 |
Actual Primary Completion Date : | July 21, 2018 |
Actual Study Completion Date : | July 21, 2018 |
Arm | Intervention/treatment |
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Experimental: TENS right side
TENS stimulation at the right side
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Other: transcutaneous electric stimulation
transcutaneous current with an amplitude around ten to hundred milliampere was applied topically to subjects
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Experimental: TENS left side
TENS stimulation at the left side
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Other: transcutaneous electric stimulation
transcutaneous current with an amplitude around ten to hundred milliampere was applied topically to subjects
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No Intervention: sham stimulation
Sham stimulation
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Ages Eligible for Study: | Child, Adult, Older Adult |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
healthy adult
Exclusion Criteria:
hypertension diabetes heart diseases neurological diseases othe medical problem
Taiwan | |
Taipei Medical University | |
Taipei, Taiwan |
Principal Investigator: | Tzer-Bin Lin, PhD | Taipei Medical University |
Tracking Information | |||||
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First Submitted Date ICMJE | June 10, 2019 | ||||
First Posted Date ICMJE | June 11, 2019 | ||||
Last Update Posted Date | June 14, 2019 | ||||
Actual Study Start Date ICMJE | July 22, 2017 | ||||
Actual Primary Completion Date | July 21, 2018 (Final data collection date for primary outcome measure) | ||||
Current Primary Outcome Measures ICMJE |
heart rate [ Time Frame: 5 min ] TENS stimulation modified HR
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Original Primary Outcome Measures ICMJE | Same as current | ||||
Change History | |||||
Current Secondary Outcome Measures ICMJE | Not Provided | ||||
Original Secondary Outcome Measures ICMJE | Not Provided | ||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||
Descriptive Information | |||||
Brief Title ICMJE | TENS Impact Heart Rate Via Vagus Activity | ||||
Official Title ICMJE | Shoulder Transcutaneous Electric Nerve Stimulation Decelerates Heart Rhythm of Subjects Via Potentiating Vagal Tone | ||||
Brief Summary |
Transcutaneous electric nerve stimulation (TENS) is widely used for the treatment of adhesive capsulitis, nevertheless, its potential impact on heart physiology has not been well established. The investigator explored if TENS at shoulder region affect heart rhythm and the machinery involved. Subjects were stratified into groups received sham stimulation (TENS-S) and TENS on either the right (TENS-R) or left (TENS-L) shoulder. A built-in waveform for treating adhesive capsulitis with a maximal tolerable intensity below the pain threshold was applied to subjects form a commercial TENS equipment for 5 min. The electrocardiogram (ECG) and heart rate (HR) were continuously recorded and the ECG was off-line transferred into power spectrum for analysis. |
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Detailed Description |
Study design This study complied with the Declaration of Helsinki, and all protocols were approved by the ethics committee of Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan. All the participants gave written informed consent before experiments. 32 subjects (20-51 years old) were included in the statistical analysis. Participants were eligible if they have cardiovascular illnesses, major mental conditions, or severe inflammation. Participants were allocated to groups that received sham stimulation (TENS-S) and TENS on the right and left shoulder (TENS-R and TENS-L, respectively). ECG and HR recordings Using a monitor lead, electrocardiogram (ECG) was recorded through electrodes connected to a recording system with a sampling rate of 5,000 samples/sec. The ECG and the HR calculated by a built-in rate meter were continuously recorded and displayed on a monitor. For TENS caused marked artifacts in ECG tracings, HR derived from ECG were confirmed off-line by manual examination. TENS stimulation To mimicking clinical scenarios, a commercial TENS equipment was used throughout this study. A built-in waveform recommended for treating capsulitis in the user's manual was used for stimulation (triple pulses with 1 ms pulse durations separated by a 1 ms intervals were ramps up and down between 2 to 10 Hz within 20 sec for 3 min and then ramps up from 10 to 200 Hz within 20 sec and kept at 200 Hz for 2 min; supplementary data 1). The current intensity was adjusted to the maximal tolerance level below the pain threshold. A pair of stimulating electrode was placed in the front of the should at the level of the sternal notch at about 2 finger-width from the mid-clavicle line, and a pair of dispersive electrode was placed at the back of shoulder opposite to the stimulating electrodes. Participants kept a stationary supine position and was asked to refrain from moving during recording. Before the stimulation, there was an equilibrium period for at least 10 min, and then the recording started. TENS was turned on for 5 min at 5 min after the baseline recording, and the recording continued until 10 min after the offset of stimulation. Parameters of the sham stimulation was identical to TENS stimulation on the right shoulder excepting the equipment was left un-powered. |
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Study Type ICMJE | Interventional | ||||
Study Phase ICMJE | Not Applicable | ||||
Study Design ICMJE | Allocation: Randomized Intervention Model: Parallel Assignment Intervention Model Description: Difference of group was compared between groups Masking: Double (Participant, Investigator)Primary Purpose: Prevention |
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Condition ICMJE |
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Intervention ICMJE | Other: transcutaneous electric stimulation
transcutaneous current with an amplitude around ten to hundred milliampere was applied topically to subjects
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Study Arms ICMJE |
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Publications * |
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* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||
Recruitment Status ICMJE | Completed | ||||
Actual Enrollment ICMJE |
32 | ||||
Original Actual Enrollment ICMJE | Same as current | ||||
Actual Study Completion Date ICMJE | July 21, 2018 | ||||
Actual Primary Completion Date | July 21, 2018 (Final data collection date for primary outcome measure) | ||||
Eligibility Criteria ICMJE |
Inclusion Criteria: healthy adult Exclusion Criteria: hypertension diabetes heart diseases neurological diseases othe medical problem |
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Sex/Gender ICMJE |
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Ages ICMJE | Child, Adult, Older Adult | ||||
Accepts Healthy Volunteers ICMJE | Yes | ||||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
Listed Location Countries ICMJE | Taiwan | ||||
Removed Location Countries | |||||
Administrative Information | |||||
NCT Number ICMJE | NCT03982472 | ||||
Other Study ID Numbers ICMJE | TENS-HR | ||||
Has Data Monitoring Committee | Yes | ||||
U.S. FDA-regulated Product |
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IPD Sharing Statement ICMJE |
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Responsible Party | Tzer-Bin Lin, Taipei Medical University | ||||
Study Sponsor ICMJE | Taipei Medical University | ||||
Collaborators ICMJE | Not Provided | ||||
Investigators ICMJE |
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PRS Account | Taipei Medical University | ||||
Verification Date | June 2019 | ||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |