Upper-body High-intensity Interval Training and Mixed Meal Responses
Ключові слова
Анотація
Опис
The aim of this research is to determine the metabolic responses to a mixed-meal tolerance test following an acute bout of HIIE and an energy-matched MICE bout in able-bodied persons. The hypothesis is that HIIE and MICE will be more effective at reducing the total triglyceride responses compared to a resting control condition.
Preliminary measurements:
Preliminary testing will include measurements of weight and height. There will also be an assessment of resting metabolic rate and maximal exercise capacity. On a second visit, a HIIE familiarisation session will be performed to determine total energy expenditure of the session. All of the exercise protocols will take place on an arm crank ergometer at the University of Bath.
Main trial days:
Before all main trials, participants will be asked to refrain from performing any strenuous physical activity in the 48-h prior (i.e. day 0 and 1) and consuming alcohol/caffeine in the 24-h prior (i.e. day 1). On day 1, participants will be asked to record/replicate their diet using a weighed food-diary. Participants will be asked perform exercise (HIIE and MICE only) at 18:00 on day 1, having consumed no food (other than plain water) from 14:00. They will be given a standardised dinner to eat at 20:00, and asked to avoid the ingestion of any further food (other than plain water) for the rest of the evening.
On day 2 and upon arrival to the laboratory, a cannula will be inserted into a vein, and a baseline blood sample and expired air sample will be taken. The participant will then be asked to consume a smoothie, consisting of peanut butter, banana, coconut oil, sugar, and chocolate-flavoured whey protein powder. The meal should be consumed within 10 minutes and blood samples will be taken from the cannula at 15, 30, 45 60, and 90 minutes and then at every hour for 5 hours after consumption of the meal to monitor changes in metabolic markers. Expired gas samples will also be taken hourly and indirect calorimetry will be used to estimate relative fat and carbohydrate metabolism in response to the meal.
Дати
| Востаннє перевірено: | 01/31/2020 |
| Перший поданий: | 02/09/2020 |
| Орієнтовна реєстрація подана: | 02/17/2020 |
| Опубліковано вперше: | 02/19/2020 |
| Останнє оновлення надіслано: | 02/17/2020 |
| Останнє оновлення опубліковано: | 02/19/2020 |
| Фактична дата початку навчання: | 10/20/2019 |
| Розрахункова дата первинного завершення: | 04/30/2020 |
| Розрахункова дата завершення дослідження: | 04/30/2020 |
Стан або захворювання
Втручання / лікування
Other: High-intensity interval exercise
Other: Moderate-intensity continous exercise
Фаза
Групи рук
| Рука | Втручання / лікування |
|---|---|
| No Intervention: Control No exercise | |
| Experimental: High-intensity interval exercise 10 x 60 s intervals at 80% peak power output (interspersed with 60 s recovery intervals at 10% peak power output) | Other: High-intensity interval exercise Arm-cranking exercise |
| Experimental: Moderate-intensity continous exercise 50% peak power output (duration determined to elicit same energy expenditure as high-intensity interval exercise condition) | Other: Moderate-intensity continous exercise Arm-cranking exercise |
Критерії прийнятності
| Вік, придатний для навчання | 18 Years До 18 Years |
| Стать, яка підходить для вивчення | All |
| Приймає здорових добровольців | Так |
| Критерії | Inclusion Criteria: - Non-smoker - No history of cardiovascular, metabolic, or neuromuscular disease Exclusion Criteria: - Individuals with a nut allergy |
Результат
Заходи первинного результату
1. Postprandial triglyceride concentrations [5 hours]
Заходи вторинного результату
1. Postprandial glucose concentrations [5 hours]
2. Postprandial insulin concentrations [5 hours]
3. Postprandial substrate oxidation [5 hours]
4. Rating of Perceived Exertion [HIIE: End of Warm-Up, 8 min, 12 min, 16 min, 20 min, 24 min. MICE: 0, 20, 40, 60, 80, 100% through exercise session (exact time points dependent on exercise time for each participant)]
5. Heart Rate [HIIE: End of Warm-Up, 8 min, 12 min, 16 min, 20 min, 24 min. MICE: 0, 20, 40, 60, 80, 100% through exercise session (exact time points dependent on exercise time for each participant)]
6. Affect [HIIE: End of Warm-Up, 8 min, 12 min, 16 min, 20 min, 24 min. MICE: 0, 20, 40, 60, 80, 100% through exercise session (exact time points dependent on exercise time for each participant)]
7. Exercise Enjoyment [30 min post-exercise]
8. Self-efficacy [30 min post-exercise]
