The shoulder joint is commonly used and also stricken by high loads and injuries in sports. One technique in emphasis is cryotherapy, a physiotherapeutical intervention characterized by the use of low temperatures for tissue trauma's rehabilitation. Several studies analysed the effects of cryotherapy and brought important results related to pain and strength reduction, also to muscle contraction speed reduction. Although, considering the risk-benefit from de intervention it's pertinent to observe the presence of deleterious effects, especially the ones that impact on motor function. This scenario has been brought by scientists and currently the main gap from this theme resides on the repercussions of the technique application on functional answers
Eighty participants will receive control (rest) and the experimental condition (cryotherapy), with an interval of 48 hours. The intervention group will undergo: i) assessment, ii) 20 minutes of cryotherapy, iii) reassessment, iv) 20 minutes of rest and v) reassessment, while the control group remains at rest for 20 minutes. Assessments will be composed of shoulder function by the upper quarter y balance test, muscle tone by the myoton pro, skin temperature by a thermographic camera, thermic comfort, perception of balance and beliefs in cryotherapy. Data will be described using mean and standard deviation and compared by Mixed ANOVA (time x intervention) with post Bonferroni tests, with significance level of 0.05.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
80
20 minutes of cryotherapy on the dominant shoulder with ice bags
modified Upper Quarter Y Balance Test - mUQYBT)
test for measuring upper extremity reach distance while in a closed-chain position
Time frame: Change from baseline to 20 minutes
modified Upper Quarter Y Balance Test - mUQYBT)
test for measuring upper extremity reach distance while in a closed-chain position
Time frame: Change from baseline to 40 minutes
Skin temperature
thermographic camera FLIR E-8 XT (FLIR Systems, Sweden)
Time frame: Change from baseline to 20 minutes
Skin temperature
thermographic camera FLIR E-8 XT (FLIR Systems, Sweden)
Time frame: Change from baseline to 25 minutes
Skin temperature
thermographic camera FLIR E-8 XT (FLIR Systems, Sweden)
Time frame: Change from baseline to 30 minutes
Skin temperature
thermographic camera FLIR E-8 XT (FLIR Systems, Sweden)
Time frame: Change from baseline to 35 minutes
Skin temperature
thermographic camera FLIR E-8 XT (FLIR Systems, Sweden)
Time frame: Change from baseline to 40 minutes
Thermic comfort
a 10cm scale ranging from 0 "very comfortable" and 10 "very uncomfortable" will be used
Time frame: Change from baseline to 20 minutes
Thermic comfort
a 10cm scale ranging from 0 "very comfortable" and 10 "very uncomfortable" will be used
Time frame: Change from baseline to 40 minutes
Balance perception
a likert scale will be used to answer the question " How good was your balance over the test?" 1=nothing, 2=a little, 3=moderate, 4= a lot, 5=extremely
Time frame: Change from baseline to 20 minutes
Balance perception
a likert scale will be used to answer the question " How good was your balance over the test?" 1=nothing, 2=a little, 3=moderate, 4= a lot, 5=extremely
Time frame: Change from baseline to 40 minutes
Muscle tone
Muscle tone will be measured in hertz by the MyotonPRO wich has a probe that will be placed perpendicular to the skin surface on the muscle belly previously marked with a pen by the evaluator at the Deltoid;
Time frame: Change from baseline to 20 minutes
Muscle tone
Muscle tone will be measured in hertz by the MyotonPRO probe will be placed perpendicular to the skin surface on the muscle belly previously marked with a pen by the evaluator at the Deltoid;
Time frame: Change from baseline to 25 minutes
Muscle tone
Muscle tone will be measured in hertz by the MyotonPRO probe will be placed perpendicular to the skin surface on the muscle belly previously marked with a pen by the evaluator at the Deltoid;
Time frame: Change from baseline to 30 minutes
Muscle tone
Muscle tone will be measured in hertz by the MyotonPRO probe will be placed perpendicular to the skin surface on the muscle belly previously marked with a pen by the evaluator at the Deltoid;
Time frame: Change from baseline to 35 minutes
Muscle tone
Muscle tone will be measured in hertz by the MyotonPRO probe will be placed perpendicular to the skin surface on the muscle belly previously marked with a pen by the evaluator at the Deltoid;
Time frame: Change from baseline to 40 minutes
Beliefs
The participants will respond yes or no to the questions "Do you believe that cryotherapy is an effect treatment for acute injuries?" and "Do you believe cryotherapy have deleterious effects on muscle function?"
Time frame: Baseline
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