Эта страница была переведена автоматически, точность перевода не гарантируется. Пожалуйста, обратитесь к английской версии для исходного текста.

Flywheel Training Effects on Power and Performance in Youth Olympic Weightlifters (FLY-WL)

28 мая 2026 г. обновлено: Ahmed Awad Ahmed Hassan, New Damietta University Hospital

Effects of Flywheel Inertial Training on Lower-Limb Power, Trunk Stability, and Olympic Weightlifting Performance in Youth Athletes

This study investigated the effects of flywheel inertial training on lower-limb power, trunk stability, and Olympic weightlifting performance in youth athletes. Eighteen youth Olympic weightlifters were allocated to a flywheel training group or a control group. Both groups continued their regular weightlifting training over a 10-week intervention period. The experimental group performed additional flywheel-based exercises twice weekly. Outcomes included measures of lower-limb power, trunk inclination during lifting, weightlifting performance, and technical error frequency.

Обзор исследования

Статус

Завершенный

Условия

Вмешательство/лечение

Подробное описание

This study investigated the effects of flywheel inertial training on lower-limb power, trunk stability, and Olympic weightlifting performance in youth athletes. Flywheel training is an eccentric-overload method that has been suggested to enhance neuromuscular adaptations, particularly in power and movement control. Eighteen youth Olympic weightlifters participated in this controlled intervention study and were allocated into a flywheel training group and a control group.

Both groups continued their regular Olympic weightlifting training program, which included technical practice of the snatch and clean, strength exercises, and general physical preparation. The experimental group additionally performed flywheel-based exercises twice per week over a 10-week training period. The intervention was progressively structured to ensure appropriate load adaptation and technical execution.

Outcome measures included assessments of lower-limb power, trunk inclination during lifting positions, performance in the snatch and clean, and technical error frequency. Pre- and post-intervention comparisons were used to evaluate the effects of the training program.

Тип исследования

Интервенционный

Регистрация (Действительный)

18

Фаза

  • Непригодный

Контакты и местонахождение

В этом разделе приведены контактные данные лиц, проводящих исследование, и информация о том, где проводится это исследование.

Места учебы

  • Египет
      • Damietta, Египет, 34517
        • Damietta University, Faculty of Sports Science

Критерии участия

Исследователи ищут людей, которые соответствуют определенному описанию, называемому критериям приемлемости. Некоторыми примерами этих критериев являются общее состояние здоровья человека или предшествующее лечение.

Критерии приемлемости

Возраст, подходящий для обучения

  • Ребенок

Принимает здоровых добровольцев

Да

Описание

Inclusion Criteria:

  • Male youth Olympic weightlifters aged 13-17 years
  • Actively participating in structured Olympic weightlifting training
  • Technical ability to perform snatch and clean lifts
  • Free from musculoskeletal injury at the time of participation
  • Medically fit for resistance training and high-intensity exercise

Exclusion Criteria:

  • Presence of injury limiting participation in training or testing
  • Absence rate greater than 20% of training or intervention sessions
  • Participation in additional structured lower-limb eccentric or flywheel training outside the study program
  • Any medical condition contraindicating resistance training

Учебный план

В этом разделе представлена ​​подробная информация о плане исследования, в том числе о том, как планируется исследование и что оно измеряет.

Как устроено исследование?

Детали дизайна

  • Основная цель: Уход
  • Распределение: Нерандомизированный
  • Интервенционная модель: Параллельное назначение
  • Маскировка: Нет (открытая этикетка)

Оружие и интервенции

Группа участников / Армия
Вмешательство/лечение
Экспериментальный: Flywheel Inertial Training Group
Participants in this group performed their regular Olympic weightlifting training program combined with additional flywheel inertial training twice per week for 10 weeks. The flywheel training included lower-limb and trunk exercises such as squats, split squats, Romanian deadlifts, pulling variations, and anti-rotation core exercises. The training was progressively structured to ensure appropriate eccentric overload and technical control.
Поведенческий: Flywheel Inertial Training
Flywheel inertial training was performed twice weekly for 10 weeks in addition to regular Olympic weightlifting training. The program included lower-limb and trunk exercises such as squats, split squats, Romanian deadlifts, pulling variations, and core stabilization exercises. The training emphasized eccentric overload and progressive resistance to enhance power production and movement control.
Другие имена:
  • Flywheel resistance training; eccentric overload training
Поведенческий: Traditional Weightlifting Training
Participants performed conventional Olympic weightlifting training including snatch and clean and jerk technique practice, squats, pulling exercises, strength exercises, mobility exercises, and general physical preparation according to the regular training program.
Активный компаратор: Control Group (Traditional Weightlifting Training)
Participants in this group continued their regular Olympic weightlifting training program only, which included snatch and clean technique practice, strength exercises, pulling derivatives, squats, mobility work, and general physical preparation, without any additional flywheel training.
Поведенческий: Traditional Weightlifting Training
Participants performed conventional Olympic weightlifting training including snatch and clean and jerk technique practice, squats, pulling exercises, strength exercises, mobility exercises, and general physical preparation according to the regular training program.

Что измеряет исследование?

Первичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Snatch Performance
Временное ограничение: Baseline and 10 weeks post-intervention
Snatch performance was assessed as the best successful snatch lift completed by each participant according to technical criteria. The unit of measurement was kilograms (kg). The outcome was analyzed as the change in kilograms from baseline to 10 weeks.
Baseline and 10 weeks post-intervention
Clean Lift Performance
Временное ограничение: Baseline and 10 weeks post-intervention
Clean lift performance was assessed as the best successful clean lift completed by each participant without performing the jerk phase. The unit of measurement was kilograms (kg). The outcome was analyzed as the change in kilograms from baseline to 10 weeks.
Baseline and 10 weeks post-intervention
Countermovement Jump Height
Временное ограничение: Baseline and 10 weeks post-intervention
Countermovement jump height was measured to assess lower-limb explosive power. The unit of measurement was centimeters (cm). The outcome was analyzed as the change in centimeters from baseline to 10 weeks.
Baseline and 10 weeks post-intervention
Trunk Inclination Angle During Snatch Receiving Position
Временное ограничение: Baseline and 10 weeks post-intervention
Trunk inclination angle was measured during the lowest stable snatch receiving position using video-based kinematic analysis. The angle was measured from the vertical reference line passing through the hip joint. The unit of measurement was degrees (°). The outcome was analyzed as the change in degrees from baseline to 10 weeks. A lower angle indicates a more upright trunk position.
Baseline and 10 weeks post-intervention

Вторичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Squat Jump Height
Временное ограничение: Baseline and 10 weeks post-intervention
Squat jump height was measured to assess concentric lower-limb power. The unit of measurement was centimeters (cm). The outcome was analyzed as the change in centimeters from baseline to 10 weeks.
Baseline and 10 weeks post-intervention
Standing Long Jump Distance
Временное ограничение: Baseline and 10 weeks post-intervention
Standing long jump distance was measured to assess horizontal lower-limb explosive power. The unit of measurement was centimeters (cm). The outcome was analyzed as the change in centimeters from baseline to 10 weeks.
Baseline and 10 weeks post-intervention
Trunk Inclination Angle During Clean Receiving Position
Временное ограничение: Baseline and 10 weeks post-intervention
Trunk inclination angle was measured during the lowest stable clean receiving position using video-based kinematic analysis. The angle was measured from the vertical reference line passing through the hip joint. The unit of measurement was degrees (°). The outcome was analyzed as the change in degrees from baseline to 10 weeks. A lower angle indicates a more upright trunk position.
Baseline and 10 weeks post-intervention
Total Weightlifting Performance
Временное ограничение: Baseline and 10 weeks post-intervention
Total weightlifting performance was calculated as the sum of the best successful snatch lift and the best successful clean lift without jerk. The unit of measurement was kilograms (kg). The outcome was analyzed as the change in kilograms from baseline to 10 weeks.
Baseline and 10 weeks post-intervention
Technical Error Frequency During Snatch and Clean Attempts
Временное ограничение: Baseline and 10 weeks post-intervention
Technical-error frequency was calculated from video analysis by counting the total number of observed technical errors during selected snatch and clean attempts. The coded errors included excessive trunk inclination, forward or backward jump during receiving, unstable receiving position, loss of balance during recovery, and visible bar path deviation. The unit of measurement was number of errors. The outcome was analyzed as the change in number of errors from baseline to 10 weeks.
Baseline and 10 weeks post-intervention

Соавторы и исследователи

Здесь вы найдете людей и организации, участвующие в этом исследовании.

Спонсор

New Damietta University Hospital

Следователи

  • Главный следователь: Ahmed Hassan, PhD, Faculty of Sports Science, Damietta University

Даты записи исследования

Эти даты отслеживают ход отправки отчетов об исследованиях и сводных результатов на сайт ClinicalTrials.gov. Записи исследований и сообщаемые результаты проверяются Национальной медицинской библиотекой (NLM), чтобы убедиться, что они соответствуют определенным стандартам контроля качества, прежде чем публиковать их на общедоступном веб-сайте.

Изучение основных дат

Начало исследования (Действительный)

20 декабря 2025 г.

Первичное завершение (Действительный)

27 февраля 2026 г.

Завершение исследования (Действительный)

27 февраля 2026 г.

Даты регистрации исследования

Первый отправленный

22 мая 2026 г.

Впервые представлено, что соответствует критериям контроля качества

28 мая 2026 г.

Первый опубликованный (Действительный)

3 июня 2026 г.

Обновления учебных записей

Последнее опубликованное обновление (Действительный)

3 июня 2026 г.

Последнее отправленное обновление, отвечающее критериям контроля качества

28 мая 2026 г.

Последняя проверка

1 мая 2026 г.

Дополнительная информация

Термины, связанные с этим исследованием

Другие идентификационные номера исследования

  • DU-FLY-2026

Планирование данных отдельных участников (IPD)

Планируете делиться данными об отдельных участниках (IPD)?

ДА

Описание плана IPD

Individual participant data (IPD) collected in this study will include anthropometric data, performance measures (snatch, clean, jump tests), trunk kinematic variables, and technical error scores. De-identified data will be shared with qualified researchers upon reasonable request for secondary analysis.

Сроки обмена IPD

Data will become available after publication of the primary results and will remain accessible for a period of 5 years following publication.

Критерии совместного доступа к IPD

Access to the de-identified dataset will be granted upon reasonable request to the principal investigator. Requests must include a brief research proposal and will be evaluated for scientific merit and ethical compliance.

Совместное использование IPD Поддерживающий тип информации

  • STUDY_PROTOCOL
  • САП
  • МКФ
  • АНАЛИТИЧЕСКИЙ_КОД

Данные исследования/документы

  1. Индивидуальный набор данных участников
    Информационный идентификатор: OSF Registry: bc4mp
    Информационные комментарии: De-identified individual participant data (IPD) will be available upon reasonable request to the principal investigator after publication. Access is restricted to academic research purposes and subject to ethical approval where required. Supporting materials including study protocol, statistical analysis plan, and analytic code are available via the Open Science Framework (OSF) registry.

Информация о лекарствах и устройствах, исследовательские документы

Изучает лекарственный продукт, регулируемый FDA США.

Нет

Изучает продукт устройства, регулируемый Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов США.

Нет

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. .

Подписаться