Supraspinatus Tendon Acute Effects After Two Exercise Exposures: a Crossover Randomized Trial.

Обзор

The purpose of this study is to understand acute tendon changes after two exercise programs. We will invite individuals with and without shoulder pain to participate in this study. Every individual will participate in both exercise programs separated by up to 15 days. The researcher will evaluate the shoulder tendon using ultrasound before each exercise program and at 1 hour, 6 hours and 24 hours after each exercise program. The researcher will also evaluate self reported pain, pain sensitivity testing, and self reported questionnaires. We will compare the tendon changes after each exercise program, as well as between participants with and without shoulder pain.

Вмешательства

• Поведенческое Isotonic exercise program
  Participants will perform two isotonic exercises, prone shoulder external rotation and shoulder elevation. The exercises will be performed at a pace of 2-second for both concentric and eccentric phases. For each exercise, participants will perform two sets of 8 repetitions, followed by a third set performed until fatigue. Fatigue will be determined using the Repetition in Reserve Scale, which asks the participant to perform exercises until they reach a self-selected number corresponding to the n
• Поведенческое Plyometric exercise program
  Participants will perform two isotonic exercises, prone shoulder external rotation and shoulder elevation. The exercises will be performed at a pace of 1-second for the eccentric phases followed by an explosive concentric phase. For each exercise, participants will perform two sets of 8 repetitions, followed by a third set performed until fatigue. Fatigue will be determined using the Repetition in Reserve Scale, which asks the participant to perform exercises until they reach a self-selected num

Первичные конечные точки

• Supraspinatus tendon thickness [Срок оценки: From enrollment to 1 hour, 6 hours, and 24 hours after each exercise program.]

Вторичные конечные точки (2)

• Pain sensitivity testing [Срок оценки: From enrollment to 1 hour, 6 hours, and 24 hours after each exercise program.]
• Self-reported pain [Срок оценки: From enrollment to 1, 6, and 24 hours after each exercise program.]

Критерии участия

General inclusion criteria

• Between 18 and 45 years of age
• Able to perform physical activity with their shoulder (moderate arm exercise for 15 min, such as tennis or housework)

General exclusion criteria

• Shoulder fracture
• Frozen shoulder (>50% restriction in shoulder range of motion)
• Shoulder surgery
• Full rotator-cuff tears
• Bilateral shoulder pain
• Shoulder instability (history or positive apprehension test)
• Corticosteroid injection in the last 6 weeks
• Neurological diseases
• Cardiological diseases
• Systemic diseases (rheumatic diseases, autoimmune diseases)
• Uncontrolled diabetes
• Pregnancy

Group-specific inclusion criteria

• Shoulder pain group: report unilateral shoulder pain with an average shoulder pain score of≥ 3 in the last week.
• Control group: report no shoulder pain within 6 months.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Распределение

Рандомизированное

Модель

Перекрёстный дизайн

Маскирование

Двойное слепое

Основная цель

Другое

Центры проведения

США · 1 центр

• University of Florida — Gainesville

Идентификаторы

NCT: NCT07489937 · IRB202501875

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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