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Transcutaneous Spinal Electrical Stimulation to Improve Exercise Function After Spinal Cord Injury.

2 июля 2026 г. обновлено: Kristine Cowley, University of Manitoba

Our overall objective is to decrease the prevalence of multiple sedentary-related diseases that are secondary consequences of spinal cord injury (SCI). SCI affects motor, sensory and autonomic systems and can cause very limited exercise capacity which then leads to very high rates of obesity, metabolic syndrome, type II diabetes and cardiovascular disease.

This randomized controlled study aims to determine whether and how transcutaneous spinal electrical stimulation (TSES) alters acute (immediate) exercise responses in people living with SCI. Exercise responses will be tested during incremental tests to fatigue, and during steady state tests. Testing will occur over several study visits and results will be compared within each individual as well as between groups (tetraplegia and paraplegia) and to a group of reference controls. A number of outcomes will be monitored, including whole-body metabolic responses using a metabolic cart, muscle responses using EMG sensors and muscle oxygenation using near infrared spectroscopy (NIRS) sensors, time to fatigue, power output, as well as perceptions about fatigue and effort.

The findings of this study are expected to provide evidence regarding whether and how TSES might improve acute exercise responses in people living with SCI.

Обзор исследования

Статус

Рекрутинг

Условия

Вмешательство/лечение

Подробное описание

It is well understood that SCI causes motor paralysis and sensory loss. However, it is the loss of autonomic regulation that confers the greatest morbidity to those living with SCI. Impaired exercise responses, including limited peak HR, oxygen uptake, limited catecholamine related to impaired activation of spinal sympathetic autonomic systems. Depending upon level of injury, and these sub-optimal exercise responses, there are limited exercise training effects which then leads to a calorie excess and related weight gain, cardiovascular, skeletal muscle and metabolic deconditioning that eventually causes obesity, type II diabetes and cardiovascular disease.

These sedentary-related diseases likely result in large part, because of inadequate activation of these tissues with sufficient duration or intensity to result in training effects. Therefore, we are interested in identifying means to improve acute exercise responses, with an ultimate goal of improving training responses and reducing the incidence of and/or trajectory of developing these sedentary-related diseases in individuals with SCI.

TSES has recently emerged as a potential therapeutic method to improve exercise responses. In case studies it has been shown to increase peak responses and time to fatigue during arm ergometry exercise tests.

This study is designed as a prospective, single-center, randomized controlled trial to examine whether and how TSES might alter exercise responses in two groups of people with SCI (tetraplegia and paraplegia) and a reference control group from the general population. The study is designed to assess within individual and between-group responses for a variety of outcome measures during peak and steady-state exercise tests. Study visits occur over several weeks for each participant, according to each person's time and convenience availability.

Outcomes are assessed during exercise with and without TSES in the following 4 experimental conditions:

  1. Comparing peak incremental tests to voluntary upper body exercise fatigue with or without TSES.
  2. Comparing steady state exercise responses performed at 40-45% peak power output with or without TSES.
  3. Comparing time to fatigue during neuromuscular electrical stimulation (NMES) evoked rhythmic leg contractions with or without TSES.

The primary hypothesis is that TSES will improve a variety of exercise outcomes under different experimental testing conditions and that those with tetraplegia will benefit most.

The results of this study are expected to contribute to whether and how TSES might alter acute exercise responses in those living with SCI.

The results of this study are expected to contribute to the evidence base regarding the effectiveness of TSES to alter peak and steady-state exercise responses in people with SCI and may support its integration into standard exercise training or competitive sport protocols for individuals with SCI.

Тип исследования

Интервенционный

Регистрация (Оцененный)

40

Фаза

  • Непригодный

Контакты и местонахождение

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

Контакты исследования

  • Имя: Kristine C Cowley, PhD
  • Номер телефона: +1 204-789-3305
  • Электронная почта: kristine.cowley@umanitoba.ca

Учебное резервное копирование контактов

  • Имя: Rodrigo Villar, PhD
  • Номер телефона: +1-204-474-8590
  • Электронная почта: rodrigo.villar@umanitoba.ca

Места учебы

    • Manitoba
      • Winnipeg, Manitoba, Канада, R3E 0J9
        • Рекрутинг
        • University of Manitoba
        • Контакт:
        • Главный следователь:
          • Kristine Cowley, PhD
        • Главный следователь:
          • Rodrigo Villar, PhD

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

  • Взрослый
  • Пожилой взрослый

Принимает здоровых добровольцев

Да

Описание

Inclusion Criteria:

  • traumatic or non-traumatic spinal cord injury
  • Spinal cord injury of at least one year duration, C5 or lower, AIS A - D
  • medically stable and healthy enough to engage in and complete exercise requirements
  • willing and able to complete the exercise protocols and testing requirements
  • able to understand and follow written and verbal instructions from study staff
  • able to communicate with study staff about their exercise capabilities and preferences

Exclusion Criteria:

  • current serious injury (ies) of the upper extremities
  • known cardiovascular disease
  • unsatisfactory results of EKG screening
  • implanted electronic cardiac devices (e.g., pacemaker, defibrillator, etc.)
  • current pressure ulcer(s)
  • morbid obesity
  • known thyroid dysfunction
  • current cancer
  • current uncontrolled high blood pressure
  • uncontrolled epilepsy
  • current deep vein thrombosis
  • ventilator dependency
  • cognitive impairment

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: Фундаментальная наука
  • Распределение: Рандомизированный
  • Интервенционная модель: Назначение кроссовера
  • Маскировка: Двойной

Оружие и интервенции

Группа участников / Армия
Вмешательство/лечение
Другой: Upper body exercise in participants with tetraplegia
TSES during peak and steady state exercise in those with tetraplegia
TSES will typically involve constant current rectangular pulse bipolar stimulation delivered at 20 Hz with stimulation durations of 900 microseconds delivered at or slightly above motor threshold.
Другой: Upper body exercise in participants with paraplegia
TSES during peak and steady state exercise in those with paraplegia
TSES will typically involve constant current rectangular pulse bipolar stimulation delivered at 20 Hz with stimulation durations of 900 microseconds delivered at or slightly above motor threshold.
Другой: Upper body exercise in reference control participants
TSES during peak and steady state exercise in reference controls
TSES will typically involve constant current rectangular pulse bipolar stimulation delivered at 20 Hz with stimulation durations of 900 microseconds delivered at or slightly above motor threshold.
Другой: Rhythmic lower limb neuromuscular electrical stimulation evoked exercise
Does TSES alter time to fatigue during NMES-evoked rhythmic lower limb exercise?
TSES will typically involve constant current rectangular pulse bipolar stimulation delivered at 20 Hz with stimulation durations of 900 microseconds delivered at or slightly above motor threshold.

Что измеряет исследование?

Первичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Oxygen uptake
Временное ограничение: During individual study visits lasting between 1 and 2.5 hours
Oxygen uptake, in mL/min
During individual study visits lasting between 1 and 2.5 hours
Perceived Exertion
Временное ограничение: Tested intermittently during individual voluntary exercise study visits lasting between 1 and 2.5 hours
Ratings of perceived exertion, on a Borg scale of 6 to 20 with 6 being resting to 20 which is very very hard.
Tested intermittently during individual voluntary exercise study visits lasting between 1 and 2.5 hours
Time to fatigue during incremental exercise tests to fatigue
Временное ограничение: Time to fatigue will be monitored during study visits lasting between 1 and 2.5 hours.
Does TSES alter time to fatigue during NMES-evoked rhythmic lower limb exercise, measured in seconds.
Time to fatigue will be monitored during study visits lasting between 1 and 2.5 hours.
Heart rate
Временное ограничение: During exercise testing study visits, lasting between 1 and 3 hours
Heart rate, beats per minute
During exercise testing study visits, lasting between 1 and 3 hours
Power output
Временное ограничение: During exercise in study visits lasting 1 to 3 hours.
Watts
During exercise in study visits lasting 1 to 3 hours.

Вторичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Muscle tissue oxygen saturation levels
Временное ограничение: Oxygen saturation levels will be assessed during study visits lasting between 1 and 2.5 hours.
Does TSES alter muscle tissue oxygen saturation levels during exercise, expressed as a percentage.
Oxygen saturation levels will be assessed during study visits lasting between 1 and 2.5 hours.

Соавторы и исследователи

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

Спонсор

Следователи

  • Главный следователь: Kristine Cowley, Phd, University of Manitoba
  • Главный следователь: Rodrigo Villar, PhD, University of Manitoba

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)

10 июня 2024 г.

Первичное завершение (Оцененный)

1 августа 2026 г.

Завершение исследования (Оцененный)

1 октября 2026 г.

Даты регистрации исследования

Первый отправленный

29 мая 2026 г.

Впервые представлено, что соответствует критериям контроля качества

2 июля 2026 г.

Первый опубликованный (Действительный)

9 июля 2026 г.

Обновления учебных записей

Последнее опубликованное обновление (Действительный)

9 июля 2026 г.

Последнее отправленное обновление, отвечающее критериям контроля качества

2 июля 2026 г.

Последняя проверка

1 мая 2026 г.

Дополнительная информация

Термины, связанные с этим исследованием

Другие идентификационные номера исследования

  • HS26003

Планирование данных отдельных участников (IPD)

Планируете делиться данными об отдельных участниках (IPD)?

НЕ РЕШЕНО

Описание плана IPD

To maintain participant confidentiality

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. .