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

July 7, 2011
July 12, 2011
January 2006
April 2007   (final data collection date for primary outcome measure)
  • 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.
Same as current
Complete list of historical versions of study NCT01391195 on ClinicalTrials.gov Archive Site
  • 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
Same as current
Not Provided
Not Provided
 
Effects of Low Level Laser Therapy (808nm) on Muscle Performance of Young Women Submitted to Physical Training
Effects of Low Level Laser Therapy (808nm) on Muscle Performance of Young Women Submitted to Physical Training

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.

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.

Interventional
Phase 1
Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Healthy
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
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

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
45
October 2007
April 2007   (final data collection date for primary outcome measure)

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
Female
18 Years to 28 Years
Yes
Contact information is only displayed when the study is recruiting subjects
Brazil
 
NCT01391195
CAAE - 0100.0.135.000-05
Yes
Wouber Hérickson de Brito Vieira, Federal University of São Carlos
Universidade Federal de Sao Carlos
Conselho Nacional de Desenvolvimento Científico e Tecnológico
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
Universidade Federal de Sao Carlos
December 2005

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