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Despite DFM being a widely-used technique and the empirical grounding regarding the importance of the pressure applied, there is no study characterizing the pressure applied during DFM, remaining it a discretion of the physiotherapist. Additionally, it is not known how the amount of pressure applied may influence pain mechanisms or function in the symptomatic patellar tendon. Having this, our objective is to characterize the pressure applied during deep friction massage and evaluate the immediate effects of different pressures applied during deep friction massage in the time until analgesia as well as in function, in patellar tendinopathy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| DFM: Mean pressure | Experimental | In this group, deep friction massage will be applied with the mean pressure, previously obtained in a baseline assessment. |
|
| DFM: Mean pressure - 25% | Experimental | In this group, deep friction massage will be applied will less 25% of the pressure previously obtained in a baseline assessment. |
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| DFM: Mean pressure +25% | Experimental | In this group, deep friction massage will be applied will an increment of 25% of the pressure previously obtained in a baseline assessment. |
|
| Control session | No Intervention | In this group, the participants will rest for 15 minutes |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| DFM: Mean pressure | Other | Deep friction massage as described by Dr. James Cyriax, performed with the mean pressure previously obtained in a baseline assessment. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Time until analgesia | Time until self reported sensation of analgesia, controlled by a chronometer, since the application of deep friction massage. | 10 minutes |
| Numeric Pain Rating Scale | Self-reported pain intensity. | 20 minutes |
| Maximal isometric strength of quadriceps | Measure of maximal isometric strength, through a dynamometer. | 20 minutes |
| Knee flexion range of movement | Measure of knee flexion range of movement, through a goniometer | 20 minutes |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Maria A Paço, PhD | Cooperativa Ensino Superior Politécnico e Universitário | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Cooperativa Ensino Superior Politécnico e Universitário | Gandra | Paredes | 4585-116 | Portugal |
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| ID | Term |
|---|---|
| D052256 | Tendinopathy |
| ID | Term |
|---|---|
| D009135 | Muscular Diseases |
| D009140 | Musculoskeletal Diseases |
| D013708 | Tendon Injuries |
| D014947 | Wounds and Injuries |
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| DFM: Mean pressure - 25% | Other | Deep friction massage as described by Dr. James Cyriax, performed with the mean pressure previously obtained in a baseline assessment decremented by 25%. |
|
| DFM: Mean pressure + 25% | Other | Deep friction massage as described by Dr. James Cyriax, performed with the mean pressure previously obtained in a baseline assessment incremented by 25%. |
|