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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
45
Phototherapy by low level laser therapy during 9 weeks
Universidade Federal de Sao Carlos
São Carlos, São Paulo, Brazil
Fatigue Index of knee extensor muscles
Fatigue Index of knee extensor muscles assessed in isokinetic dynamometry.
Time frame: nine weeks
Ventilatory threshold
Ventilatory threshold quantified by a gas analyzer.
Time frame: nine weeks
VO2max
VO2max quantified by a gas analyzer.
Time frame: nine weeks
VO2peak
VO2peak quantified by a gas analyzer.
Time frame: nine weeks
Maximum load of effort on cycle ergometer (Balke's protocol).
Maximum load of effort on cycle ergometer quantified in Watts.
Time frame: nine weeks
Total work of knee extensor muscles
Total work of knee extensor muscles assessed in isokinetic dynamometry
Time frame: nine weeks
Peak torque of knee extensor muscles
Peak torque of knee extensor muscles assessed in isokinetic dynamometry
Time frame: nine weeks
Borg scale
Subjective effort perception assessed by Borg scale
Time frame: nine weeks
Heart rate
Heart Rate assessed by cardiac frequency meter
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Time frame: nine weeks