Analysis of Sensory and Motor Thresholds During Transcutaneous Electrical Stimulation in Different Sexes and Ages

NCT ID: NCT01876160

Last Updated: 2013-06-12

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 86 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2011-03-31
• Study Completion Date: 2013-03-31

Brief Summary

The sensory and motor perception thresholds can influence the therapeutic effects of Transcutaneous Electrical Nerve Stimulation. This study aimed to determine the threshold of sensory perception and the threshold of motor response in young and elderly subjects of both sexes. Eighty healthy volunteers were evaluated; 40 women and 40 men divided into two equal groups of young and elderly subjects. Half of the individuals in each group were stimulated with 5 and 50Hz frequency, with pulse duration of 20, 100, 400, 1000 and 3000µs applied on the flexor muscle bellies of the wrist and fingers. The threshold of sensory perception was identified as the first sensation of increased current intensity and the threshold of motor response as the minimum muscle contraction detected. The results were submitted to ANOVA test, followed by the Tukey test, with a significance level of 5%.

Conditions

Healthy Individuals

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Blinding Strategy: SINGLE

Study Groups

threshold of sensory perception

Eighty healthy volunteers were evaluated; 40 women and 40 men divided into two equal groups of young and elderly subjects. Half of the individuals in each group were stimulated with 5 and 50Hz frequency, with pulse duration of 20, 100, 400, 1000 and 3000µs applied on the flexor muscle bellies of the wrist and fingers. The threshold of sensory perception was identified as the first sensation of increased current intensity and the threshold of motor response as the minimum muscle contraction detected.

Group Type: EXPERIMENTAL

Transcutaneous electrical nerve stimulation

Intervention Type: OTHER

threshold of motor response

Eighty healthy volunteers were evaluated; 40 women and 40 men divided into two equal groups of young and elderly subjects. Half of the individuals in each group were stimulated with 5 and 50Hz frequency, with pulse duration of 20, 100, 400, 1000 and 3000µs applied on the flexor muscle bellies of the wrist and fingers. The threshold of motor response as the minimum muscle contraction detected.

Group Type: EXPERIMENTAL

Transcutaneous electrical nerve stimulation

Intervention Type: OTHER

Interventions

Transcutaneous electrical nerve stimulation

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• healthy individuals

Exclusion Criteria

• not present: previous circulatory, nervous or metabolic diseases, metal implants in areas to be studied; fracture on upper limb studied; history of pain or injury in areas to be studied.
• are not in menstrual period or a week before it
• not be making use of drugs that affect the nervous system

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

University of Sao Paulo

OTHER

Sponsor Role: lead

Responsible Party

Rinaldo Roberto de Jesus Guirro

Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Other Identifiers

U1111-1143-6220

Identifier Type: -

Identifier Source: org_study_id