No effect of meal intake on physiological or perceptual responses
to self-selected high intensity interval exercise (HIIE)

Astorino, Todd A.; Sherrick, Sarah; Mariscal, M. A. Ortega; Jimenez, Vianney Camarillo; Stetson, Kelli; Courtney, D. Mark

doi:10.5114/biolsport.2019.85557

Cited by 4 publications

(5 citation statements)

References 42 publications

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“…However, exercise performed in the overnight-fasted state lowers hepatic but not muscle glycogen [ 41 ], and therefore fasted exercise with normal muscle glycogen levels would not be expected to have the performance decrement. Similar to our findings, no effect of a mixed macronutrient breakfast on HIIT performance or RPE has been reported compared with exercising in the overnight-fasted state [ 16 ]. However, others have shown benefit of pre-exercise CHO ingestion on an exercise capacity test lasting ~8–10 min [ 42 ].…”

Section: Discussionsupporting

confidence: 91%

“…From a performance standpoint, fed-state exercise generally enhances prolonged (>60 min), but not shorter duration (<60 min) aerobic exercise compared with exercising in the fasted state [ 12 ], although few studies have used a high-intensity interval training (HIIT) model to measure performance despite HIIT being performed by virtually all endurance athletes [ 13 ]. Total work performed during HIIT has been reported to be increased in the fed, compared with the fasted state during some [ 14 , 15 ] but not all [ 16 ] studies. To our knowledge, no studies have compared pre-exercise CHO, protein, and fasted-state training on HIIT work capacity.…”

Section: Introductionmentioning

confidence: 99%

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Pre-Exercise Carbohydrate or Protein Ingestion Influences Substrate Oxidation but Not Performance or Hunger Compared with Cycling in the Fasted State

et al. 2021

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Nutritional intake can influence exercise metabolism and performance, but there is a lack of research comparing protein-rich pre-exercise meals with endurance exercise performed both in the fasted state and following a carbohydrate-rich breakfast. The purpose of this study was to determine the effects of three pre-exercise nutrition strategies on metabolism and exercise capacity during cycling. On three occasions, seventeen trained male cyclists (VO2peak 62.2 ± 5.8 mL·kg−1·min−1, 31.2 ± 12.4 years, 74.8 ± 9.6 kg) performed twenty minutes of submaximal cycling (4 × 5 min stages at 60%, 80%, and 100% of ventilatory threshold (VT), and 20% of the difference between power at the VT and peak power), followed by 3 × 3 min intervals at 80% peak aerobic power and 3 × 3 min intervals at maximal effort, 30 min after consuming a carbohydrate-rich meal (CARB; 1 g/kg CHO), a protein-rich meal (PROTEIN; 0.45 g/kg protein + 0.24 g/kg fat), or water (FASTED), in a randomized and counter-balanced order. Fat oxidation was lower for CARB compared with FASTED at and below the VT, and compared with PROTEIN at 60% VT. There were no differences between trials for average power during high-intensity intervals (367 ± 51 W, p = 0.516). Oxidative stress (F2-Isoprostanes), perceived exertion, and hunger were not different between trials. Overall, exercising in the overnight-fasted state increased fat oxidation during submaximal exercise compared with exercise following a CHO-rich breakfast, and pre-exercise protein ingestion allowed similarly high levels of fat oxidation. There were no differences in perceived exertion, hunger, or performance, and we provide novel data showing no influence of pre-exercise nutrition ingestion on exercise-induced oxidative stress.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Pre-Exercise Carbohydrate or Protein Ingestion Influences Substrate Oxidation but Not Performance or Hunger Compared with Cycling in the Fasted State

et al. 2021

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“…VO 2max refers to the maximum oxygen amount consumed and supplied by tissue cells when the body reaches the maximum power amount, which is an important indicator reflecting the body's aerobic exercise ability. VO 2max was determined by both direct and indirect methods [5]. e effect of the high quality of circulating circulation on vascular function and heart and lung function in sedentary humans was investigated by Chidnok et al Methods: twenty-two female participants were divided into two groups, including the HIIT group receiving no intervention and the control group.…”

Section: Introductionmentioning

confidence: 99%

Construction of the Maximum Oxygen Intake Regression Equations for Exercise Training on Respiration and Heart Rate

Kang

2022

Journal of Healthcare Engineering

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To explore the correlation between the maximum percentage heart rate and the maximum percentage oxygen intake, provide an evaluation basis for heart rate for the assessment of exercise load intensity. Four boys and 4 girls were randomly selected, aged 26.25 ± 2.12 years old with good health, good cardiopulmonary function, no other medical history, and irregular physical training history. The subject measured the first 30 min of rest at 25°C at room temperature, kept awake and static, and the heart rate was measured as the quiet heart rate in the state. Prepredicted maximum heart rate and health index were determined according to the Polar s810 heart rate table instructions. Prepredicted maximum heart rate and health index were measured three consecutive times and reliability analysis was performed on three measurements. The regression equations were established by a stepwise method with data represented that all metrics were tested for normality for fitness index and maximum oxygen intake compared using a paired t test with a significance level of P < 0.05 . The results showed that the highest value of VO2max motor cardiopulmonary test was 47.83 ml/(kg·min), the lowest was 35.06 ml/(kg·min), the two-step test was 44.50 ml/(kg·min), and the lowest was 32.89 ml/(kg min).With a positive correlation between the postexercise heart rate and the maximum oxygen intake, the maximum oxygen intake value can be indirectly inferred using the heart rate after the exercise and the work completed by the exercise. The results measured by two-step test have some accuracy and can be used to speculate the maximum oxygen intake in the ordinary young population. The polar heart rate meter allows subjects to indirectly measure the maximum oxygen intake in silence, requiring less equipment and being easy to operate. The indirect measurement of the maximum oxygen intake can be used for the monitoring of competitive sports and national fitness.

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“…The same laboratory found that banana consumption provided benefits to the immunological system and antio-xidant defense after athletes cycled 75 Km (NIEMAN et al, 2018a). In contrast, banana intake did not affect blood lactate production after high intensity interval exercise (ASTORINO et al, 2019). Due to the sugar and phytochemicals in bananas, the ingestion during exercise can be used to improve metabolic recovery and lower post-exercise inflammation at the cellular level.…”

Section: Bananasmentioning

confidence: 94%

The Consumption of Fruits as a Potential Alternative to Accelerate the Recovery Process After High Intensity Exercise

Skinner¹,

Wade²,

Iacobacci³

et al. 2020

Rev. Cont. Saúde

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A prevalent desire in the sports world is the acceleration of post-exercise recovery; therefore, many studies have examined the use of dietary supplements before, during, and after exercise to determine the positive effects on athletes as a catalyst for recovery. Overall, studies have found that adaptations to regular exercise promotes advantageous reactions in the body to boost the immune system, prevent dyslipidemia and muscle loss, and increase bone density. However, exercise at an increased intensity or duration usually performed under competitive settings can deplete glycogen stores, increase lactic acid, form an excess amount of reactive oxygen species (ROS), increase tissue damage, and decrease immunologic function. This review incorporated studies that tested the use of fruits as a strategy to attenuate the period by which the body buffers the increase in acidity and inflammation, scavenge ROS and to regenerate muscle damage after high intensity exercise. Therefore, the effect of fruit intake rich in vitamins and those containing polyphenolic ring-based flavonoids and carbohydrates was discussed. Nutrient supplementation can enhance recovery after high intensity exercise, particularly fruits of red-blue color such as cherries and blueberries seem to decrease oxidative stress, inflammation, and muscle damage. In summary, each fruit has specific targets to offset body regeneration, avoid over training, and improve overall performance.

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No effect of meal intake on physiological or perceptual responses to self-selected high intensity interval exercise (HIIE)

Cited by 4 publications

References 42 publications

Pre-Exercise Carbohydrate or Protein Ingestion Influences Substrate Oxidation but Not Performance or Hunger Compared with Cycling in the Fasted State

Pre-Exercise Carbohydrate or Protein Ingestion Influences Substrate Oxidation but Not Performance or Hunger Compared with Cycling in the Fasted State

Construction of the Maximum Oxygen Intake Regression Equations for Exercise Training on Respiration and Heart Rate

The Consumption of Fruits as a Potential Alternative to Accelerate the Recovery Process After High Intensity Exercise

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