Trial Outcomes & Findings for Direct Current Cathode and Anode Effects and Changes in Handgrip Strength. Evaluation Through a Dynamometer Test (NCT NCT02884427)

NCT ID: NCT02884427

Last Updated: 2018-10-09

Results Overview

The difference in maximum grip strength is that value in kilograms obtained between the best score of the first three gripping attempts made before the intervention compared to the best result obtained from the three attempts after the intervention. The maximum force difference will express the force changes before and after the participants are exposed to one of the treatments.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

150 participants

Primary outcome timeframe

Baseline and 1 hours later (1 session of treatment), assessed as up to 1 month.

Results posted on

2018-10-09

Participant Flow

Participant milestones

Participant milestones
Measure
Control
Group that will be placed electrotherapy without operation, but only installation. Patients in this group will see the team work but it will not be delivering current. Placebo: Current application without the actual electric conduction to the person occurs. This will be achieved by adjusting parameters while installing another channel and not one that is working.
Cathode Stimulation
Group that is involved with the (black) negative electrode seeking the polar effect of nervous increased excitability and conductivity with the current application. Cathode stimulation: Electrical stimulation through the cathode or negative pole, in which a peripheral nerve will be subject to the passage of a direct current seeking increased excitability and conductivity during the passage of current.
Anode Stimulation
Group that is involved with the (red) positive electrode seeking the polar effect of nervous excitability and conductivity decreased with the current application. Anode stimulation: Electrical stimulation through the anode or positive pole, in which a peripheral rib will be subjected to the passage of a direct current seeking to reduce excitability and conductivity during the passage of current.
Overall Study
STARTED
50
48
52
Overall Study
COMPLETED
50
48
52
Overall Study
NOT COMPLETED
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Direct Current Cathode and Anode Effects and Changes in Handgrip Strength. Evaluation Through a Dynamometer Test

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Cathode Stimulation
n=48 Participants
Group that is involved with the (black) negative electrode seeking the polar effect of nervous increased excitability and conductivity with the current application. Cathode stimulation: Electrical stimulation through the cathode or negative pole, in which a peripheral nerve will be subject to the passage of a direct current seeking increased excitability and conductivity during the passage of current.
Anode Stimulation
n=52 Participants
Group that is involved with the (red) positive electrode seeking the polar effect of nervous excitability and conductivity decreased with the current application. Anode stimulation: Electrical stimulation through the anode or positive pole, in which a peripheral rib will be subjected to the passage of a direct current seeking to reduce excitability and conductivity during the passage of current.
Control
n=50 Participants
Group that will be placed electrotherapy without operation, but only installation. Patients in this group will see the team work but it will not be delivering current. Placebo: Current application without the actual electric conduction to the person occurs. This will be achieved by adjusting parameters while installing another channel and not one that is working.
Total
n=150 Participants
Total of all reporting groups
Age, Categorical
<=18 years
7 Participants
n=93 Participants
6 Participants
n=4 Participants
11 Participants
n=27 Participants
24 Participants
n=483 Participants
Age, Categorical
Between 18 and 65 years
41 Participants
n=93 Participants
46 Participants
n=4 Participants
39 Participants
n=27 Participants
126 Participants
n=483 Participants
Age, Categorical
>=65 years
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
0 Participants
n=483 Participants
Age, Continuous
23 years
STANDARD_DEVIATION 3 • n=93 Participants
23 years
STANDARD_DEVIATION 2 • n=4 Participants
22 years
STANDARD_DEVIATION 3 • n=27 Participants
23 years
STANDARD_DEVIATION 3 • n=483 Participants
Sex: Female, Male
Female
18 Participants
n=93 Participants
21 Participants
n=4 Participants
24 Participants
n=27 Participants
63 Participants
n=483 Participants
Sex: Female, Male
Male
30 Participants
n=93 Participants
31 Participants
n=4 Participants
26 Participants
n=27 Participants
87 Participants
n=483 Participants
Region of Enrollment
Chile
48 participants
n=93 Participants
52 participants
n=4 Participants
50 participants
n=27 Participants
150 participants
n=483 Participants
Body Mass Index (BMI)
24 kg/m^2
STANDARD_DEVIATION 3 • n=93 Participants
24 kg/m^2
STANDARD_DEVIATION 3 • n=4 Participants
25 kg/m^2
STANDARD_DEVIATION 5 • n=27 Participants
24 kg/m^2
STANDARD_DEVIATION 3 • n=483 Participants

PRIMARY outcome

Timeframe: Baseline and 1 hours later (1 session of treatment), assessed as up to 1 month.

The difference in maximum grip strength is that value in kilograms obtained between the best score of the first three gripping attempts made before the intervention compared to the best result obtained from the three attempts after the intervention. The maximum force difference will express the force changes before and after the participants are exposed to one of the treatments.

Outcome measures

Outcome measures
Measure
Cathode Stimulation
n=48 Participants
Group that is involved with the (black) negative electrode seeking the polar effect of nervous increased excitability and conductivity with the current application. Cathode stimulation: Electrical stimulation through the cathode or negative pole, in which a peripheral nerve will be subject to the passage of a direct current seeking increased excitability and conductivity during the passage of current.
Anode Stimulation
n=52 Participants
Group that is involved with the (red) positive electrode seeking the polar effect of nervous excitability and conductivity decreased with the current application. Anode stimulation: Electrical stimulation through the anode or positive pole, in which a peripheral rib will be subjected to the passage of a direct current seeking to reduce excitability and conductivity during the passage of current.
Control
n=50 Participants
Group that will be placed electrotherapy without operation, but only installation. Patients in this group will see the team work but it will not be delivering current. Placebo: Current application without the actual electric conduction to the person occurs. This will be achieved by adjusting parameters while installing another channel and not one that is working.
Difference of Maximum Grip Strength
03 Kilograms (Kg)
Standard Deviation 5
0 Kilograms (Kg)
Standard Deviation 4
-02 Kilograms (Kg)
Standard Deviation 5

SECONDARY outcome

Timeframe: Baseline and 1 hours later (1 session of treatment), assessed as up to 1 month.

The difference in maximum grip strength for males is that value in kilograms obtained between the best score of the first three gripping attempts made before the intervention compared to the best result obtained from the three attempts after the intervention considering only the men of each group. Maximum force difference will express the force changes before and after the participants are exposed to one of the treatments.

Outcome measures

Outcome measures
Measure
Cathode Stimulation
n=30 Participants
Group that is involved with the (black) negative electrode seeking the polar effect of nervous increased excitability and conductivity with the current application. Cathode stimulation: Electrical stimulation through the cathode or negative pole, in which a peripheral nerve will be subject to the passage of a direct current seeking increased excitability and conductivity during the passage of current.
Anode Stimulation
n=31 Participants
Group that is involved with the (red) positive electrode seeking the polar effect of nervous excitability and conductivity decreased with the current application. Anode stimulation: Electrical stimulation through the anode or positive pole, in which a peripheral rib will be subjected to the passage of a direct current seeking to reduce excitability and conductivity during the passage of current.
Control
n=26 Participants
Group that will be placed electrotherapy without operation, but only installation. Patients in this group will see the team work but it will not be delivering current. Placebo: Current application without the actual electric conduction to the person occurs. This will be achieved by adjusting parameters while installing another channel and not one that is working.
Difference of Maximum Grip Strength for Males
1 Kilograms (Kg)
Interval -3.0 to 4.0
0 Kilograms (Kg)
Interval 0.0 to 2.0
0.5 Kilograms (Kg)
Interval -2.0 to 2.0

SECONDARY outcome

Timeframe: Baseline and 1 hours later (1 session of treatment), assessed as up to 1 month.

The difference in maximum grip strength for females is that value in kilograms obtained between the best score of the first three gripping attempts made before the intervention compared to the best result obtained from the three attempts after the intervention considering only the women of each group. Maximum force difference will express the force changes before and after the participants are exposed to one of the treatments.

Outcome measures

Outcome measures
Measure
Cathode Stimulation
n=18 Participants
Group that is involved with the (black) negative electrode seeking the polar effect of nervous increased excitability and conductivity with the current application. Cathode stimulation: Electrical stimulation through the cathode or negative pole, in which a peripheral nerve will be subject to the passage of a direct current seeking increased excitability and conductivity during the passage of current.
Anode Stimulation
n=21 Participants
Group that is involved with the (red) positive electrode seeking the polar effect of nervous excitability and conductivity decreased with the current application. Anode stimulation: Electrical stimulation through the anode or positive pole, in which a peripheral rib will be subjected to the passage of a direct current seeking to reduce excitability and conductivity during the passage of current.
Control
n=24 Participants
Group that will be placed electrotherapy without operation, but only installation. Patients in this group will see the team work but it will not be delivering current. Placebo: Current application without the actual electric conduction to the person occurs. This will be achieved by adjusting parameters while installing another channel and not one that is working.
Difference of Maximum Grip Strength for Females
-0.3 Kilograms (Kg)
Standard Deviation 5
-0.8 Kilograms (Kg)
Standard Deviation 4
-0.8 Kilograms (Kg)
Standard Deviation 4

Adverse Events

Cathode Stimulation

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Anode Stimulation

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Control

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Professor Hernán Andrés de la Barra O., DC,PT,Mg

Universidad Andrés Bello

Phone: 56226618402

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place