Muscle Weakness, Contracture
Conditions
Interventions
Ten subjects will be part of 2 different moments in the research, in which in the control period (self-control), will not be submitted to any intervention.
Individuals will first undergo an evaluation
Other
E02.190.599
Sponsors
Universidade do Vale do Rio dos Sinos
Universidade do Vale do Rio dos Sinos
Eligibility
Age
18 Years to 35 Years
Inclusion criteria
Inclusion criteria: students from the University; aged 18-35; both sexes
Exclusion criteria
Exclusion criteria: Participants who performed some physical activity in the 6 months prior to the survey; with diagnosis of any musculoskeletal lesions; significant postural deviations; pregnant or in the menstrual period; such as individuals who used generic anti inflammatory drugs during data collection
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Expected outcome 1: increased muscle recruitment of spine erectors. For myoelectric data, a 16-channel electromyograph (EMG) will be used. The individual will be placed on his back on two stretchers, facing each other, with the antero-superior iliac spine as a reference. The stretcher that stays the upper trunk will be lower, and will be filled with eight overlapping mats so that the participant rests during the placement of the electrodes. To avoid compensations and to give greater stability during the execution of the trunk extension movement, a rigid band will be used in the projection of the buttocks, popliteal fossa and ankles. For the preparation of the region that the electrodes will be fixed, the tricotomy will be performed with a disposable razor and hygiene with isopropyl alcohol and cotton. The Surface EMG protocol for the Non-Invasive Assessment of Muscles (SENIAM) will be used as reference for the positioning of the electrodes in the column erectors. The reference electrode will be in the spinous process of C7. After the positioning of the electrodes, participants will be instructed to perform maximal voluntary isometric contractions (MVIC) of the spinal erector muscles, maintaining the isometric contraction of the spinal extension movement for 7 seconds, which will be immobilized later by placing a band rigid on the upper thorax. Three MIVMs of the extension movement will be performed, with an interval of three minutes. After the collection of the MIVMs, the rigid band of the upper thorax will be removed and requested to perform the free extension movement, according to previous training. For the uniformity of movement, a metronome with 60 beats per minute will be used, divided into three cycles of 5 seconds, the first cycle being for rest, the second for concentric contraction and the third for eccentric contraction. This procedure will be performed three times in order to allow the selection of the set of signals with greater homogeneity.;OOutcome 1: | — |
Secondary
| Measure | Time frame |
|---|---|
| Expected outcome 1: Improved flexibility. In order to evaluate the flexibility of the posterior chain, the Solo Fingers test will be carried out, in which the volunteer will be asked to move the hands toward the ground with trunk flexion, keeping elbows and knees extended and head, shoulders and hands relaxed, taking into account the compensations previously mentioned. Once the trunk flexion is performed, a distance measuring tape between the 3rd finger and the ground will be measured. Acute flexibility was that measured during the visits, and chronic the beginning / end comparison of the interventions.;Outcome found: there was no change in muscle recruitment. | — |
Countries
Brazil
Contacts
Public ContactPatricia Santanna
Universidade do Vale do Rio dos Sinos
Outcome results
None listed