Comparison of Different Quadriceps Femoris Isometric Strengthening Methods

NCT03715920 | Completed

• 1 other identifier: 60116787-020/77612
• Study Type: interventional
• Target: 46
• Locations: 1 country
• Sites: 1

Brief Summary

Background:It has been reported in previous studies that more motor units are fired with electrical stimulation than voluntary muscle contraction, and even high intensity currents provide 10-30% more contractions than voluntary muscle contraction. Objective:This study was planned to compare the effectiveness of high voltage pulsed galvanic (HVPG) stimulation, Russian current and isometric exercise on quadriceps femoris (QF) isometric muscle strength in healthy young women. Methods:Forty-six healthy young women were included in the study (mean age=21.02 ± 1.27). Before and after the training, the dominant side QF isometric muscle strength of participants was assessed with the Isokinetic Dynamometer . The peak torque and average torques of the participants were recorded after the test. The training was planned as HVPG current for the the first group (n = 16), as Russian current for the second group (n = 15) and as isometric strengthening for the third group (n = 15). All treatments were performed under physiotherapist supervision for a total of 15 sessions for 3 days a week for 5 weeks.

Conditions

Muscle Strength

Keywords

Quadriceps femoris; isometric form; exercise

Outcome Measures

Primary Outcomes (1)

• Isokinetic Strength measurement

  Muscle strength, Isokinetic strength measurement: The dominant side QF isometric muscle strength (torque measurements) of the participants was assessed with the Isokinetic Dynamometer (Humac Norm Testing Rehabilitation System, CSMI Medical Solutions, USA).

  One week

Secondary Outcomes (1)

• Isometric exercise

  One week

Study Arms (3)

High Voltage Pulsed Galvanic Current

ACTIVE COMPARATOR

HVPG current is a new form of neuromuscular electrical stimulation.The total output voltage of the device ranged from 0 to 500 volts and the current intensity was increased until the sensible contraction of the applied muscle was achieved without causing too much sense of discomfort

Device: Electrical currents

Russian Current

PLACEBO COMPARATOR

Russian currents are a high frequency current of 2500 Hz and reduce the resistance of the skin and it would penetrate deeper and reach deeper motor nerves.Russian movement, a protocol developed by Kots, also known as "Russian Technique", was used in the literature. There were 10 muscle contractions per treatment session in this protocol. Each contraction lasted for 10 seconds and a resting time of 50 seconds were given for the next contraction (transition: rest ratio was 1/5).

Device: Electrical currents

Isometric Exercise

SHAM COMPARATOR

Isometric or static strength training is exercises performed without joint movement and changing muscle length during muscle contraction. The body and knee of the participants in the isometric exercise group were positioned and stabilized at 75 ° flexion and 60 ° flexion angle, respectively as in the stimulation groups. Participants were asked to do 10 repetitions as 10 seconds of maximum voluntary contractions and 10 seconds of rest.

Device: Electrical currents

Interventions

Electrical currents DEVICE

The training was planned as HVPG current for the the first group (n = 16), as Russian current for the second group (n = 15) and as isometric strengthening for the third group (n = 15). All treatments were performed under physiotherapist supervision for a total of 15 sessions for 3 days a week for 5 weeks.

Also known as: Exercises, Isometric

High Voltage Pulsed Galvanic Current; Isometric Exercise; Russian Current

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Not having knee complaints such as pain, lockout, morning arrest, swelling, difficulty in walking.
• Not having any orthopedic or neurological disability

You may not qualify if:

• Exercising regularly for the last six months.
• Presence of cardiovascular, pulmonary, orthopedic and neurological problems which may prevent exercise.

Sponsors & Collaborators

• Pamukkale University: lead

Study Sites (1)

Bilge Basakci Calik

Kınıklı, 20000, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Motor Activity

Interventions

Exercise Therapy; Muscle Stretching Exercises

Condition Hierarchy (Ancestors)

Behavior

Intervention Hierarchy (Ancestors)

Rehabilitation; Aftercare; Continuity of Patient Care; Patient Care; Therapeutics; Physical Therapy Modalities; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SEQUENTIAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: October 11, 2018
• First Posted: October 23, 2018
• Study Start: September 24, 2017
• Primary Completion: November 24, 2017
• Study Completion: July 24, 2018
• Last Updated: October 23, 2018

Record last verified: 2018-10

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)