Effects of Muscle Cooling on Motor Unit Firing of the Quadriceps
Ориентир для пациента и семьи
Простыми словами
Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.
- Что изучают
- В протоколе указаны: Cryotherapy.
- Кому может быть актуально
- Состояния в реестре: Healthy. Базовые параметры: 18 лет — 35 лет · Все.
- Что важно проверить
- Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
- Где проводится
- США
- Следующий шаг
- Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
Не всё понятно в терминах? Прочитайте наш гид для пациентов →
Официальное название
Effects of Muscle Cooling on Motor Unit Firing of the Quadriceps: A Pilot Feasibility Study
Обзор
The overall objective of this pilot study is to establish the feasibility and methodological validity of using high-density surface electromyography to characterize motor unit behavior of the quadriceps under thermoneutral and locally cooled conditions, and to generate preliminary data to inform the design of a larger, hypothesis-driven study.
Подробное описание
This randomized, cross-over pilot study will recruit 24 healthy young adults (12 men and 12 women) between the ages of 18 and 35 years. Participants will attend two in-person laboratory visits separated by a minimum of 48 hours. Visit 1 will include informed consent, eligibility confirmation, baseline assessments, and familiarization procedures. Visit 2 will include experimental testing under thermoneutral and cooled conditions.
Вмешательства
- Процедура Cryotherapy
For the cold condition, an Aircast Thigh Pad (Aircast), connected to the Cryo Cuff IC cooler (DJO Global, Vista, California, USA) will be applied to the dominant thigh. The system circulates ice water maintained at approximately 10-15°C with intermittent compression. Cooling duration will be individualized based on mid-thigh skinfold thickness, consistent with published recommendations that account for the effect of subcutaneous tissue on intramuscular cooling9. Participants with a mid-thigh ski
Первичные конечные точки
- Motor Unit (MU) Yield [Срок оценки: Immediately after the intervention]
- HDsEMG Decomposition Accuracy [Срок оценки: Immediately after the intervention]
- Proportion of Analyzable MVC Trials [Срок оценки: Immediately after the intervention]
Вторичные конечные точки (2)
- Slope of MUAP-FR relationship [Срок оценки: Immediately after the intervention]
- Y-intercept of MUAP-FR relationship [Срок оценки: Immediately after the intervention]
Критерии участия
Критерии включения
- Men and women between the ages of 18 and 35 years
- Healthy adults, defined as absence of significant acute/chronic medical condition, injury, and/or illness that may compromise subject safety, limit the ability of the participant to complete the study, and/or compromise the objectives of the study as determined by the Principal Investigator.
Критерии исключения
- Current diagnosis or history of:
- major metabolic disease (e.g., type I and type II diabetes),
- neuromuscular disease (e.g., cervical spondylotic radiculomyelopathy, lumbar spondylosis, amyotrophic lateral sclerosis, Guillain-Barré syndrome, and acquired demyelinating polyneuropathies),
- cardiovascular disease (e.g., stage II hypertension, heart failure, myocardial infarction/ischemia, peripheral vascular disease, Raynaud's phenomenon, or other conditions associated with impaired peripheral circulation),
- significant myocardial or pericardial diseases (e.g. amyloidosis, constriction),
- moderate or severe valvular disease,
- pulmonary/respiratory disease (e.g., asthma, chronic bronchitis, emphysema, chronic obstructive pulmonary disease),
- cancer,
- renal disease,
- liver disease,
- or anemia.
- Current or recent musculoskeletal injury (e.g. fracture, sprain, dislocation) or any physical disability that precludes safe and adequate testing.
- Pregnancy or breastfeeding.
- Thigh circumference greater than 23 inches
- Mid-thigh skinfold thickness greater 40 mm
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
- Открытое
- Основная цель
- Фундаментальное исследование
Центры проведения
США · 1 центр
- Department of Health and Exercise Science at Wake Forest University — Winston-Salem
Идентификаторы
NCT: NCT07381920 · IRB00026267