The Application of Neuromodulation in Sciatic Nerve

The Fascicular Anatomy of Nerve May Influence the Muscular Activity of the Biceps Femoris After Applying Ultrasound-guided Percutaneous Neuromodulation

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05549700

Enrollment

Registered

2022-09-22

Start date

2022-12-01

Completion date

2022-12-30

Last updated

2023-01-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Brief summary

The objective of this study will be to analyze the muscle activity of the short head (SHBF) and long head of the biceps femoris (LHBF) after the application of ultrasound-guided percutaneous neuromodulation (NMP) in the tibial or common fibular nerve compartment of the sciatic nerve. Authors will recruit healthy subjects and they will receive asymmetric biphasic rectangular current through a needle into the sciatic nerve. The sample was divided into two groups: one to which the technique was applied in the lateral compartment and another group, in the medial compartment of the nerve. The protocol used was 5 seconds of stimulation, 55 seconds of rest for 5 minutes at a frequency of 100 Hz and a phase duration of 350 microseconds. The electrical activity (recruitment of muscle fibers and maximum contraction) of the SHBF and LHBF and the muscle strength of the knee flexors were recorded by requesting the participants isometric flexion of the knee in the prone position. The percentage of change of each variable was also analyzed.

Interventions

OTHERNeuromodulation

Ultrasound-guided percutaneous neuromodulation will be applied. The protocol used was 5 seconds of stimulation, 55 seconds of rest for 5 minutes at a frequency of 100 Hz and a phase duration of 350 microseconds

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

HEALTH_SERVICES_RESEARCH

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to 35 Years

Healthy volunteers

Yes

Inclusion criteria

* Healthy volunteer

Exclusion criteria

* Subjects that have lumbar area of the back, scoliosis, lower limb dysmetria * Subjects undergone any surgical intervention in the lumbar area or lower limbs * Subjects that present acute or unresolved injury in the last 6 months in the lower limbs * Subjects under treatment drug treatment * Subjects that they are afraid of needles or electric current * Subjects with epileptic * Pregnant.

Design outcomes

Primary

Measure	Time frame	Description
Electrical muscular activity	3 months	recruitment of muscle fibers, measured by electromyography (microvolts)
muscle strength of the knee flexors	3 months	strength measured by dynamometer (Kg)

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026