Effects of Low Level Laser Therapy (808nm) on Muscle Performance of Young Women Submitted to Physical Training

This study has been completed.

Sponsor:

Collaborator:

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Information provided by:

Universidade Federal de Sao Carlos

ClinicalTrials.gov Identifier:

NCT01391195

First received: July 7, 2011

Last updated: July 12, 2011

Last verified: December 2005

History of Changes

Tracking Information

First Received Date ^ICMJE

July 7, 2011

Last Updated Date

July 12, 2011

Start Date ^ICMJE

January 2006

Primary Completion Date

April 2007 (final data collection date for primary outcome measure)

Current Primary Outcome Measures ^ICMJE

Fatigue Index of knee extensor muscles [ Time Frame: nine weeks ] [ Designated as safety issue: No ]
Fatigue Index of knee extensor muscles assessed in isokinetic dynamometry.
Ventilatory threshold [ Time Frame: nine weeks ] [ Designated as safety issue: No ]
Ventilatory threshold quantified by a gas analyzer.
VO2max [ Time Frame: nine weeks ] [ Designated as safety issue: No ]
VO2max quantified by a gas analyzer.
VO2peak [ Time Frame: nine weeks ] [ Designated as safety issue: No ]
VO2peak quantified by a gas analyzer.
Maximum load of effort on cycle ergometer (Balke's protocol). [ Time Frame: nine weeks ] [ Designated as safety issue: No ]
Maximum load of effort on cycle ergometer quantified in Watts.

Original Primary Outcome Measures ^ICMJE

Same as current

Change History

Complete list of historical versions of study NCT01391195 on ClinicalTrials.gov Archive Site

Current Secondary Outcome Measures ^ICMJE

Total work of knee extensor muscles [ Time Frame: nine weeks ] [ Designated as safety issue: No ]
Total work of knee extensor muscles assessed in isokinetic dynamometry
Peak torque of knee extensor muscles [ Time Frame: nine weeks ] [ Designated as safety issue: No ]
Peak torque of knee extensor muscles assessed in isokinetic dynamometry
Borg scale [ Time Frame: nine weeks ] [ Designated as safety issue: No ]
Subjective effort perception assessed by Borg scale
Heart rate [ Time Frame: nine weeks ] [ Designated as safety issue: No ]
Heart Rate assessed by cardiac frequency meter

Original Secondary Outcome Measures ^ICMJE

Same as current

Current Other Outcome Measures ^ICMJE

Not Provided

Original Other Outcome Measures ^ICMJE

Not Provided

Descriptive Information

Brief Title ^ICMJE

Effects of Low Level Laser Therapy (808nm) on Muscle Performance of Young Women Submitted to Physical Training

Official Title ^ICMJE

Effects of Low Level Laser Therapy (808nm) on Muscle Performance of Young Women Submitted to Physical Training

Brief Summary

The study hypothesis is an increase in muscle performance and a higher aerobic adaptation of young women submitted to chronic endurance training program associated to low level laser therapy when compared to chronic aerobic training alone.

Detailed Description

The study assessed women muscle performance in isokinetic dynamometry, ventilatory parameters such as ventilatory threshold, VO2Peak, VO2Max, Ventilation. Maximal load in cycle ergometer test (Balke's protocol), Borg Scale and Heart rate were assessed too.

Study Type ^ICMJE

Interventional

Study Phase

Phase 1

Study Design ^ICMJE

Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment

Condition ^ICMJE

Healthy

Intervention ^ICMJE

Device: Phototherapy by low level laser therapy

Phototherapy by low level laser therapy during 9 weeks

Other Names:

Laser
Laser therapy
Low level laser therapy

Study Arm (s)

Experimental: Laser therapy and aerobic capacity

Effects of low level laser therapy on aerobic capacity of young women submitted to endurance training

Intervention: Device: Phototherapy by low level laser therapy

Publications *

* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.

Recruitment Information

Recruitment Status ^ICMJE

Completed

Enrollment ^ICMJE

Completion Date

October 2007

Primary Completion Date

April 2007 (final data collection date for primary outcome measure)

Eligibility Criteria ^ICMJE

Inclusion Criteria:

healthy young women volunteers
women with a beginner or moderately trained pattern of physical activity
body Mass Index (BMI) between 18 and 25kg/m2

Exclusion Criteria:

previous injury to the femoral quadriceps or hamstrings muscles (within 6 months prior to study)
osseous or articular disorder in the lower limbs
cardiovascular system disorders or systemic disease

Gender

Female

Ages

18 Years to 28 Years

Accepts Healthy Volunteers

Yes

Contacts ^ICMJE

Contact information is only displayed when the study is recruiting subjects

Location Countries ^ICMJE

Brazil

Administrative Information

NCT Number ^ICMJE

NCT01391195

Other Study ID Numbers ^ICMJE

CAAE - 0100.0.135.000-05

Has Data Monitoring Committee

Yes

Responsible Party

Wouber Hérickson de Brito Vieira, Federal University of São Carlos

Study Sponsor ^ICMJE

Universidade Federal de Sao Carlos

Collaborators ^ICMJE

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Investigators ^ICMJE

Principal Investigator:	Wouber Hérickson B Vieira, PhD	Universidade Federal de Sao Carlos
Study Director:	Nivaldo A Parizotto, PhD	Universidade Federal de Sao Carlos
Principal Investigator:	Cleber Ferraresi, Ms	Universidade Federal de Sao Carlos

Information Provided By

Universidade Federal de Sao Carlos

Verification Date

December 2005

^ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP

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