Exercise intensity and postprandial health outcomes in adolescents

Bond, Bert; Williams, Craig A.; Isic, Carly; Jackman, Sarah R.; Tolfrey, Keith; Barrett, Laura A.; Barker, Alan R.

doi:10.1007/s00421-014-3074-8

Cited by 26 publications

(57 citation statements)

References 43 publications

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“…plasma glucose and TAG, blood pressure and lipid oxidation), but the benefits would be superior in HIIE compared to MIE. The present study also builds on our earlier work by identifying whether comparable benefits are achievable when the same exercise stimulus is accumulated in smaller bouts rather than performed in a single session [9].…”

Section: Accepted M Manuscriptmentioning

confidence: 84%

“…assessed via indirect calorimetry (Cortex Metalyzer 3B, Leipzig, Germany) for 15 min in order to determine total resting energy expenditure (REE) and substrate oxidation (lipid and carbohydrate) in accordance with our earlier work [9,23]. These measures were repeated 45 min after the cessation of each exercise bout or rest.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…Participants were asked to provide a rating of perceived exertion (RPE) using the 1-10 Pictorial Children's Effort Rating [9]. No other food was consumed during the postprandial period, although water was available ad libitum and subsequently replicated for each trial.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…A warm up and cool down of 75 s at 20 W was included for each HIIE and MIE. The duration of the MIE trial was calculated to match the total work performed during the HIIE bout for each participant, and the total accrued exercise stimulus matched our earlier postprandial investigation with this group [9]. Total EE and the macronutrient energetic contributions to MIE were determined using the mean exercise V O 2 and respiratory exchange ratio (RER) values [24].…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…We have recently demonstrated that a single bout of exercise (~ 30 min) can improve postprandial health outcomes in adolescents in an intensity-dependent manner [9]. However, it is known that adolescents rarely sustain exercise for longer than 10 min [10].…”

Section: Introductionmentioning

confidence: 99%

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Accumulating exercise and postprandial health in adolescents

et al. 2015

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Purpose: To examine the influence of exercise intensity on postprandial health outcomes in adolescents when exercise is accumulated throughout the day. Methods: 19 adolescents (9 male, 13.7 ± 0.4 y) completed three 1-day trials in a randomised order: 1) rest (CON); or four bouts of 2) 2 x 1 min cycling at 90% peak power with 75 s recovery (high-intensity interval exercise; HIIE); or 3) cycling at 90% of the gas exchange threshold (moderate-intensity exercise; MIE), which was work-matched to HIIE. Each bout was separated by 2 hours.Participants consumed a high fat milkshake for breakfast and lunch. Postprandial triacylglycerol (TAG), glucose, systolic blood pressure (SBP) and fat oxidation were assessed throughout the day. Results: There was no effect of trial on total area under the curve (TAUC) for TAG (P=0.87). TAUC-glucose was lower in HIIE compared to CON (P=0.03, ES=0.42) and MIE (P=0.04, ES=0.41), with no difference between MIE and CON (P=0.89, ES=0.04).Postprandial SBP was lower in HIIE compared to CON (P=0.04, ES=0.50) and MIE (P=0.04, ES=0.40), but not different between MIE and CON (P=0.52, ES=0.11).Resting fat oxidation was increased in HIIE compared to CON (P=0.01, ES=0.74) and MIE (P=0.05, ES=0.51), with no difference between MIE and CON (P=0.37, ES=0.24). Conclusion:Neither exercise trial attenuated postprandial lipaemia. However, accumulating brief bouts of HIIE, but not MIE, reduced postprandial plasma glucose and SBP, and increased resting fat oxidation in adolescent boys and girls. The intensity of accumulated exercise may therefore have important implications for health outcomes in youth.

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Section: Accepted M Manuscriptmentioning

confidence: 84%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Accumulating exercise and postprandial health in adolescents

et al. 2015

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Physical activity, sedentary time, TV viewing, physical fitness and cardiovascular disease risk in adolescents: The HELENA study

Barker

Gracia‐Marco

Ruiz

et al. 2018

International Journal of Cardiology

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Enhancing cardiometabolic health through physical activity and breakfast manipulations in children and adolescents: good for humans, good for the planet

Zakrzewski-Fruer

Thackray

2022

Proc. Nutr. Soc.

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The human health benefits of cardiometabolic disease prevention can be accompanied by planetary co-benefits. Focusing efforts towards young people, including children and adolescents, is conducive to disease prevention. In the context of cardiometabolic disease prevention, this review paper critically summarises the available literature on the acute cardiometabolic responses to physical activity and breakfast manipulations among young people. Given the seriousness of global climate change, which will disproportionally affect our younger generations, the paper offers new insights into the inherent interactions between child-adolescent behaviour and cardiometabolic health from an environmental sustainability perspective to aid climate change mitigation efforts, including exploring future research avenues. A growing evidence base suggests acute moderate-to high-intensity exercise bouts can attenuate postprandial plasma glucose, insulin and triacylglycerol concentrations for up to 24-48 h in young people. Whether accumulating physical activity throughout the day with short, frequent bouts promotes cardiometabolic risk marker attenuations is unclear. Breakfast consumption may enhance free-living physical activity and reduce glycaemic responses to subsequent meals for a possible additive impact. If repeated habitually, attenuations in these cardiometabolic risk factors would be conducive to disease prevention, reducing the greenhouse gas emissions associated with disease diagnosis and treatment. To progress current understanding with high public health and planetary relevance, research among samples of 'at risk' young people that span cellular-level responses to ecologically valid settings and address human and planetary health co-benefits is needed. Indeed, certain physical activity opportunities, such as active travel to school, offer important direct co-benefits to human and planetary health.

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Exercise intensity and postprandial health outcomes in adolescents

Cited by 26 publications

References 43 publications

Accumulating exercise and postprandial health in adolescents

Accumulating exercise and postprandial health in adolescents

Physical activity, sedentary time, TV viewing, physical fitness and cardiovascular disease risk in adolescents: The HELENA study

Enhancing cardiometabolic health through physical activity and breakfast manipulations in children and adolescents: good for humans, good for the planet

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