The purpose of this study is to compare the acute effect of the use of different thermal modalities associated to the training of passive flexibility of the hamstring muscles in the amplitude of motion of the knee extension.
Context: In the literature there is a disagreement of results and protocols regarding the use of thermal modalities associated with the training of flexibility of the hamstring muscles. Most studies on the subject, used the heat and cryotherapy prior to stretching these. Therefore, the investigators aimed to conduct an experimental study using the therapeutics term concomitant arrangements to passive static stretching these muscles. Methods: Clinical trial randomized crossover, which will a sample of 42 subjects (healthy young men, aged 20 to 30 years). Were divided into 3 groups (Group 1 passive static stretching hamstrings, Group 2 heat + passive static stretching hamstrings and Group 3 cryotherapy + static stretching hamstrings passive) with 14 subjects each. Where the participants will control themselves, since all carry out the three interventions, only at different times. Each action will be performed every 7 days. Individuals will be subjected to active test of the range of motion of knee extension (goniometer) and hamstring muscle strength (dynamometer).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
34
Flexibility training of the hamstring muscles by passive static stretching of the hamstring muscles in 10 30-second repetitions, with a 10-second pause between each repetition associated with or without short-wave heating or cryotherapy
Federal University of Health Science of Porto Alegre
Porto Alegre, Rio Grande do Sul, Brazil
Change of Active Knee Extension Test
Active Knee Extension Test is performed in a standardised procedure and is measured in degrees.
Time frame: 3 weeks
Change of Peak Torque of flexors and knee extensors
Peak torque of flexors and knee extensors is performed in an isokinetic dynamometer (Biodex system III), in a standardised procedure.
Time frame: 3 weeks
Change of Passive Resistance flexors and knee extensors
Passive Resistance of flexors and knee extensors is performed in an isokinetic dynamometer (Biodex system III), in a standardised procedure.
Time frame: 3 weeks
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