Mental Fatigue Effects on Posture and Spinal Reflexes
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: Mental Fatigue Induction, Control Condition.
- Кому может быть актуально
- Состояния в реестре: Mental Fatigue. 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
- Бельгия
- Следующий шаг
- Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →
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Официальное название
Effects of Mental Fatigue on Posture and Spinal Reflexes Modulations
Обзор
This randomized crossover study investigates the effects of mental fatigue on postural control and spinal reflex excitability in healthy physically active adults aged 18-35 years. Participants will complete two experimental conditions: a mentally fatiguing Stroop task and a control condition involving passive documentary watching, separated by at least 48 hours. Postural control will be assessed using force plate measures of center of pressure displacement during bipedal and unipedal stance, with and without concurrent cognitive dual-tasking. In parallel, spinal reflex excitability will be evaluated using H-reflex recordings from the triceps surae muscles across sitting and standing postures. The primary aim is to determine whether mental fatigue increases postural sway, particularly in more challenging balance conditions such as single-leg stance. The secondary aim is to examine whether mental fatigue alters the normal modulation of spinal reflex excitability across progressively demanding postural tasks. Additional biomechanical and neuromuscular measures, including EMG activity and hip kinematics, will be recorded to provide insight into underlying control mechanisms. The study will include approximately 26 participants, with each serving as their own control. Data will contribute to understanding how cognitive fatigue influences balance control and spinal-level neuromuscular regulation.
Вмешательства
- Поведенческое Mental Fatigue Induction
Participants complete a 60-minute computerized Stroop color-word task designed to induce mental fatigue. The task consists of repeated incongruent stimuli requiring rapid and accurate responses, with difficulty individualized based on a prior maximal Stroop performance test. Performance (reaction time and accuracy) is continuously recorded. Subjective mental fatigue is assessed intermittently during the task using a visual analogue scale. - Поведенческое Control Condition
Participants watch a 60-minute neutral documentary of their choice. This condition is designed to match the mental fatigue intervention in duration and general sensory engagement without inducing cognitive fatigue. No cognitive task performance is required. Subjective mental fatigue is assessed at equivalent time points using a visual analogue scale.
Первичные конечные точки
- Center of Pressure (CoP) Displacement (Postural Sway) [Срок оценки: Pre-intervention and immediately post-intervention (each experimental session)]
- Subjective Mental Fatigue [Срок оценки: During intervention (every 15 minutes) and immediately post-intervention]
Вторичные конечные точки (3)
- Spinal Reflex Excitability (H-reflex Modulation) [Срок оценки: Pre-intervention and immediately post-intervention across sitting, bipedal stance, and unipedal stance conditions]
- Surface Electromyography (EMG) Activity of Postural Muscles [Срок оценки: Continuous recording during postural tasks, pre-intervention and immediately post-intervention (each condition)]
- Hip / Leg Movement (IMU Angular Velocity) [Срок оценки: Pre-intervention and immediately post-intervention during bipedal and unipedal stance]
Критерии участия
Критерии включения
- Healthy participants aged between 18 and 35 years
- Recreational active
Критерии исключения
- Previous major lower limb injury (last 6 months)
- Present neurological or musculoskeletal disorders
- Involvement in another concurrent physical or cognitive intervention study
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
- Простое слепое
- Основная цель
- Фундаментальное исследование
Центры проведения
Бельгия · 1 центр
- Vrije Universiteit Brussel — Brussels
Идентификаторы
NCT: NCT07650903 · MFspinal