- ICH GCP
- Реестр клинических исследований США
- Клиническое испытание NCT07635979
Physiological Responses to Upper Limb NMES
Exploring Local Physiological Changes in the Arm During NMES Using the Firefly® Device
Обзор исследования
Статус
Условия
Вмешательство/лечение
Подробное описание
Participants will undergo NMES using the Firefly® device, applied to two predefined regions of the upper limb: one targeting the anterior arm nerve bundle (a collective term referring to motor and sensory nerves within the anterior and medial compartments of the upper arm, including the musculocutaneous and adjacent (median, medial cutaneous, ulnar and radial) nerves, and the other targeting the median nerve in the proximal forearm.
Vascular responses will be assessed at two sites, the brachial artery and axillary vein, using Doppler ultrasound. For each nerve-vascular site pairing, NMES will alternate between stimulation OFF and ON conditions (10 OFF and 10 ON cycles), comprising one stimulation block of approximately 20 minutes. Each participant will complete four stimulation blocks in total.
During both ON and OFF phases, blood flow volume and haemodynamic parameters, including peak systolic velocity (PSV), end-diastolic velocity (EDV), and resistive index (RI), will be recorded. Additionally, local muscle oxygen saturation (SmO₂) will be continuously monitored using functional near-infrared spectroscopy (fNIRS) to assess tissue-level physiological changes.
The total study participation time per individual is approximately 2 hours.
Тип исследования
Регистрация (Действительный)
Фаза
- Непригодный
Контакты и местонахождение
Места учебы
-
-
Buckinghamshire
-
High Wycombe, Buckinghamshire, Соединенное Королевство, HP11 1JX
- Firstkind
-
-
Критерии участия
Критерии приемлемости
Возраст, подходящий для обучения
- Взрослый
Принимает здоровых добровольцев
Описание
Inclusion Criteria:
- Aged 18 to 45 years (inclusive)
- No known history of vascular or neurological conditions affecting the upper extremities
- Able to read, understand, and communicate in English to ensure informed consent and safe participation in the study
Exclusion Criteria:
- Presence of any condition that contraindicates the use of neuromuscular electrical stimulation (e.g., implanted pacemaker, epilepsy)
- Current or recent injury to the upper limbs that may interfere with stimulation or measurement
- Anatomical variations in the brachial artery or axillary vein, specifically vascular branching outside expected anatomical locations, as identified by ultrasound, which may impair accurate blood flow measurement or device placement
- Currently participating in another interventional or physiological research study or having done so within the past 30 days.
- Currently pregnant
Учебный план
Как устроено исследование?
Детали дизайна
- Основная цель: Фундаментальная наука
- Распределение: Н/Д
- Интервенционная модель: Одногрупповое задание
- Маскировка: Нет (открытая этикетка)
Оружие и интервенции
Группа участников / Армия |
Вмешательство/лечение |
|---|---|
|
Экспериментальный: Single experimental arm: Firefly NMES
|
Firefly NMES device applied to the upper limb during a single-visit exploratory pysiological study
|
Что измеряет исследование?
Первичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Change in upper-limb blood flow volume during NMES (ON vs OFF)
Временное ограничение: During single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles
|
Within-subject change in upper-limb blood flow volume (mL/min) measured using Doppler ultrasound during neuromuscular electrical stimulation (NMES) delivered via the Firefly device, comparing stimulation ON versus OFF conditions.
Measurements will be collected across repeated stimulation cycles at predefined upper-limb stimulation zones and vascular assessment sites.
|
During single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles
|
|
Change in upper-limb peak systolic velocity during NMES (ON vs OFF)
Временное ограничение: During a single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles.
|
Within-subject change in upper-limb peak systolic velocity (PSV; cm/s) measured using Doppler ultrasound during NMES delivered via the Firefly device, comparing stimulation ON versus OFF conditions across repeated stimulation cycles at predefined upper-limb stimulation zones and vascular assessment sites.
|
During a single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles.
|
|
Change in upper-limb end-diastolic velocity during NMES (ON vs OFF)
Временное ограничение: During a single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles.
|
Within-subject change in upper-limb end-diastolic velocity (EDV; cm/s) measured using Doppler ultrasound during NMES delivered via the Firefly device, comparing stimulation ON versus OFF conditions across repeated stimulation cycles at predefined upper-limb stimulation zones and vascular assessment sites.
|
During a single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles.
|
|
Change in upper-limb resistive index during NMES (ON vs OFF)
Временное ограничение: During a single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles.
|
Within-subject change in upper-limb resistive index (RI; unitless ratio) derived from Doppler ultrasound measurements during NMES delivered via the Firefly device, comparing stimulation ON versus OFF conditions across repeated stimulation cycles at predefined upper-limb stimulation zones and vascular assessment sites.
|
During a single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles.
|
|
Change in upper-limb muscle oxygen saturation during NMES (ON vs OFF)
Временное ограничение: During a single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles.
|
Within-subject change in upper-limb muscle oxygen saturation (SmO₂; %) measured continuously using functional near-infrared spectroscopy (fNIRS) during NMES delivered via the Firefly device, comparing stimulation ON versus OFF conditions across repeated stimulation cycles at predefined upper-limb stimulation zones and assessment sites.
|
During a single study visit (approximately 2 hours), across repeated stimulation ON/OFF cycles.
|
Вторичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Incidence of adverse events and device-related effects
Временное ограничение: During single study visit (approximately 2 hours)
|
Number and type of adverse events (AEs), serious adverse events (SAEs), adverse device effects (ADEs), serious adverse device effects (SADEs), and device deficiencies observed during study participation.
|
During single study visit (approximately 2 hours)
|
Соавторы и исследователи
Спонсор
Даты записи исследования
Изучение основных дат
Начало исследования (Действительный)
Первичное завершение (Действительный)
Завершение исследования (Действительный)
Даты регистрации исследования
Первый отправленный
Впервые представлено, что соответствует критериям контроля качества
Первый опубликованный (Действительный)
Обновления учебных записей
Последнее опубликованное обновление (Действительный)
Последнее отправленное обновление, отвечающее критериям контроля качества
Последняя проверка
Дополнительная информация
Термины, связанные с этим исследованием
Другие идентификационные номера исследования
- FFR-ARM-002 (Другой номер гранта/финансирования: Firstkind)
Планирование данных отдельных участников (IPD)
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Описание плана IPD
Совместное использование IPD Поддерживающий тип информации
- STUDY_PROTOCOL
- МКФ
Информация о лекарствах и устройствах, исследовательские документы
Изучает лекарственный продукт, регулируемый FDA США.
Изучает продукт устройства, регулируемый Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов США.
продукт, произведенный в США и экспортированный из США.
Эта информация была получена непосредственно с веб-сайта clinicaltrials.gov без каких-либо изменений. Если у вас есть запросы на изменение, удаление или обновление сведений об исследовании, обращайтесь по адресу register@clinicaltrials.gov. Как только изменение будет реализовано на clinicaltrials.gov, оно будет автоматически обновлено и на нашем веб-сайте. .