Effect of Light Emitting Diode Therapy on Muscle Fatigue (LED)

Effect of Different Pre Application Time Intervals of Light Emitting Diode Therapy on Muscle

The purpose of this study is to determine the optimal time interval between light emitting diode application and exercise to improve fatigue resistance.The results of this study could be useful in planning a rehabilitation program in musculature disorders and also in athletic training.

Study Overview

• Status: Unknown
• Conditions: Muscle Fatigue
• Intervention / Treatment: Device: Light emitting diode

Detailed Description

1. To determine the effect of light emitting diode applied 5 minutes before exercise on pain, rate of perceived exertion and maximum voluntary contraction.
2. To determine the effect of light emitting diode applied 1 hour before exercise on pain, rate of perceived exertion and maximum voluntary contraction.
3. To determine the effect of light emitting diode applied 5 hours before exercise on pain, rate of perceived exertion and maximum voluntary contraction.
4. To determine the difference between light emitting diode applied 5 minutes,1 hour or 5 hours before exercise on pain, rate of perceived exertion and maximum voluntary contraction.

• Study Type: Interventional
• Enrollment (Anticipated): 30
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Egypt
  • Cairo, Egypt
    • Faculty of Physical Therapy

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 40 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Healthy non athletics subjects.
• Age ranges from 20-40 years.
• Body mass index is less than 25 kg/m 2

Exclusion Criteria:

• Neurological deficit and recent injury to either upper extremity
• non diagnosed pain .
• Contraindications to LED irradiation (such as light hypersensitivity, fluctuating blood pressure, insufficient blood circulation, fever and inflammation of the skin)
• Conditions in which physical exertion is contraindicated (such as cardiovascular deficits, hypertension and respiratory problems)
• Restriction in shoulder or elbow range of motion;
• Neoplasm,
• Rheumatoid,
• Strength training in the past 6 months;
• Previous surgery in the spine or upper extremity;
• Complaints of pain in the shoulder, elbow,wrist, and trunk musculature system;
• Use of dietary supplements; and not in any other exercise program for at least the past 3 months.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Single

Number of Arms

6

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: 5 minutes before 1; Light emitting diode applied 5 minutes before fatiguing task	Device: Light emitting diode; Light emitting diode at a wavelength of 890 nm is produced by an array of 60 gallium aluminum arsenide light-emitting diodes located on flexible pads and the near infrared photo energy is delivered in a noninvasive, drug-free manner
Placebo Comparator: 5 minutes before 2; Light emitting diode applied 5 minutes before fatiguing task	Device: Light emitting diode; Light emitting diode at a wavelength of 890 nm is produced by an array of 60 gallium aluminum arsenide light-emitting diodes located on flexible pads and the near infrared photo energy is delivered in a noninvasive, drug-free manner
Experimental: 1 hour before 1; Light emitting diode applied 1 hour before fatiguing task	Device: Light emitting diode; Light emitting diode at a wavelength of 890 nm is produced by an array of 60 gallium aluminum arsenide light-emitting diodes located on flexible pads and the near infrared photo energy is delivered in a noninvasive, drug-free manner
Placebo Comparator: 1 hour before 2; Light emitting diode applied 1 hour before fatiguing task	Device: Light emitting diode; Light emitting diode at a wavelength of 890 nm is produced by an array of 60 gallium aluminum arsenide light-emitting diodes located on flexible pads and the near infrared photo energy is delivered in a noninvasive, drug-free manner
Experimental: 5 hours before 1; Light emitting diode applied 5 hours before fatiguing task	Device: Light emitting diode; Light emitting diode at a wavelength of 890 nm is produced by an array of 60 gallium aluminum arsenide light-emitting diodes located on flexible pads and the near infrared photo energy is delivered in a noninvasive, drug-free manner
Placebo Comparator: 5 hours before 2; Light emitting diode applied 5 hours before fatiguing task	Device: Light emitting diode; Light emitting diode at a wavelength of 890 nm is produced by an array of 60 gallium aluminum arsenide light-emitting diodes located on flexible pads and the near infrared photo energy is delivered in a noninvasive, drug-free manner

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Isometric peak torque of elbow flexors	metric unit is Newton	change from before light emitting diode application at 5 minutes, 1 hour and 5 hours
Isometric peak torque of elbow flexors	metric unit is Newton	change from before light emitting diode application at1 minute
Isokinetic peak torque of elbow flexors	Metric unit is Newton and at angular velocity 60	change from before light emitting diode application at 5 minutes, 1 hour and 5 hours
Isokinetic peak torque of elbow flexors	Metric unit is Newton and at angular velocity 60	change from before light emitting diode application at 1 minute after light emitting diode application

Collaborators and Investigators

• Sponsor: Cairo University

Study record dates

Study Major Dates

• Study Start (Actual): November 1, 2020
• Primary Completion (Anticipated): January 1, 2021
• Study Completion (Anticipated): January 1, 2021

Study Registration Dates

• First Submitted: January 24, 2020
• First Submitted That Met QC Criteria: April 28, 2020
• First Posted (Actual): April 29, 2020

Study Record Updates

• Last Update Posted (Actual): November 25, 2020
• Last Update Submitted That Met QC Criteria: November 21, 2020
• Last Verified: November 1, 2020

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Fatigue
• Other Study ID Numbers: P.T.REC/012/002480

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No