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The purpose of the study is to investigate the acute effects of static stretching on the shoulder joint position sense of overhead athletes.
A crossover randomized controlled trial will be conducted with 17 overhead athletes (9 males and 8 females). All of them will perform the 3 study conditions in random order: a control (5-minute rest), and static stretching of 30 or 90 seconds of muscles around the shoulder. The shoulder joint position sense will be assessed before and immediately after these conditions, and tested by active repositioning for the range of 110º of flexion, with a video camera. Absolute, relative and variable angular errors will be calculated.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Control Condition | No Intervention | 5-minute rest. | |
| Static Stretching of 30 seconds Condition | Active Comparator | Static stretching of 30 seconds of muscles around the shoulder of the dominant upper limb:
|
|
| Static Stretching of 90 seconds Condition | Active Comparator | Static stretching of 90 seconds of muscles around the shoulder of the dominant upper limb:
|
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Static Stretching | Other |
|
| Measure | Description | Time Frame |
|---|---|---|
| Absolute angular error | The absolute value of the difference between the target range and the achieved range | Change from Baseline (Before) to Immediately after interventions or control (After) |
| Relative angular error | The arithmetic difference between the target range and the range achieved | Change from Baseline (Before) to Immediately after interventions or control (After) |
| Variable angular error | The standard deviation of the 3 repositionings | Change from Baseline (Before) to Immediately after interventions or control (After) |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Escola Superior Saúde Fernando Pessoa | Porto | 4200-253 | Portugal |
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| ID | Term |
|---|---|
| D052580 | Muscle Stretching Exercises |
| ID | Term |
|---|---|
| D005081 | Exercise Therapy |
| D012046 | Rehabilitation |
| D000359 | Aftercare |
| D003266 | Continuity of Patient Care |
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|
| D005791 |
| Patient Care |
| D013812 | Therapeutics |
| D026741 | Physical Therapy Modalities |
| D015444 | Exercise |
| D009043 | Motor Activity |
| D009068 | Movement |
| D009142 | Musculoskeletal Physiological Phenomena |
| D055687 | Musculoskeletal and Neural Physiological Phenomena |