Effects of Cryotherapy on Knee Function

Not Applicable

• Conditions: Functional Status; Muscle Tone
• Interventions: Other: Cryotherapy

• Registration Number: NCT05331079
• Lead Sponsor: São Paulo State University

Brief Summary

The knee 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

Detailed Description

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 knee function by the modified Star Excursion 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 Timeline

• Status Verified: 2022-04
• Study First Submitted: 2022-04-08
• Study First Submitted QC: 2022-04-08
• Last Update Submitted: 2022-04-08
• Study First Posted: 2022-04-15
• Last Update Posted: 2022-04-15
• Study Start: 2022-04-25
• Primary Completion: 2022-05-30
• Study Completion: 2022-05-30

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 80

Inclusion Criteria

• 18 to 28 years old
• healthy
• no musculoskeletal complaints

Exclusion Criteria

• failure to follow protocol
• complaints of injury or pain during the assessments

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Cryotherapy	Cryotherapy	20 minutes of cryotherapy on the dominant knee with ice bags

Primary Outcome Measures

Name	Time	Method
Knee balance	Change from baseline to 40 minutes	The modified Star Excursion Balance test will measure lower limb reach distance in centimeters

Secondary Outcome Measures

Name	Time	Method
Balance perception	Change from baseline to 40 minutes	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
Muscle tone	Change from baseline to 40 minutes	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 Quadriceps;
Beliefs	Baseline	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?"
Thermic Comfort	Change from baseline to 40 minutes	a 10cm scale ranging from 0 "very comfortable" and 10 "very uncomfortable" will be used
Skin temperature	Change from baseline to 40 minutes	thermographic camera FLIR E-8 XT (FLIR Systems, Sweden)