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

University of Sao Paulo

Status: Completed

Conditions: Healthy Individuals

Treatments: Other: Transcutaneous electrical nerve stimulation

Study type: Interventional

Funder types: Other

Identifiers

NCT01876160

U1111-1143-6220

Details and patient eligibility

About

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%.

Enrollment: 86 patients

Sex: All

Ages: 18 to 80 years old

Volunteers: Accepts Healthy Volunteers

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

Trial design

86 participants in 2 patient groups

threshold of sensory perception

Experimental group

Description:

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.

Treatment:

Other: Transcutaneous electrical nerve stimulation

threshold of motor response

Experimental group

Description:

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.

Treatment:

Other: Transcutaneous electrical nerve stimulation