The effects of high-intensity intermittent exercise on the plasma concentrations of glutamine and organic acids

1998 ◽  
Vol 77 (5) ◽  
pp. 434-438 ◽  
Author(s):  
N. P. Walsh ◽  
A. K. Blannin ◽  
A. M. Clark ◽  
L. Cook ◽  
P. J. Robson ◽  
...  
Keyword(s):  
Organic Acids ◽  
High Intensity ◽  
Intermittent Exercise ◽  
Plasma Concentrations

Influence of Carbohydrate Supplementation on Plasma Cytokine and Neutrophil Degranulation Responses to High Intensity Intermittent Exercise

2002 ◽  
Vol 12 (2) ◽  
pp. 145-156 ◽  
Author(s):  
Nicolette C. Bishop ◽  
Michael Gleeson ◽  
Ceri W. Nicholas ◽  
Ajmol Ali
Keyword(s):  
High Intensity ◽  
Intermittent Exercise ◽  
Plasma Concentrations ◽  
Neutrophil Function ◽  
Moderate Intensity ◽  
Post Exercise ◽  
Carbohydrate Supplementation ◽  
Tnf Α ◽  
Neutrophil Degranulation ◽  
Factor Α

Ingesting carbohydrate (CHO) beverages during prolonged, continuous heavy exercise results in smaller changes in the plasma concentrations of several cytokines and attenuates a decline in neutrophil function. In contrast, ingesting CHO during prolonged intermittent exercise appears to have negligible influence on these responses, probably due to the overall moderate intensity of these intermittent exercise protocols. Therefore, we examined the effect of CHO ingestion on plasma interIeukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and lipopolysaccharide (LPS)-stimuIated neutrophil degranulation responses to high-intensity intermittent running. Six trained male soccer players performed 2 exercise trials, 7 days apart, in a randomized, counterbalanced design. On each occasion, they completed six 15-min periods of intermittent running consisting of maximal sprinting interspersed with less intense periods of running and walking. Subjects consumed either CHO or artificially sweetened placebo(PLA) beverages immediately before and at 15-min intervals during the exercise. At 30 min post-exercise, CHO versus PLA was associated with a higher plasma glucose concentration (p< .01), a lower plasma cortisol and IL-6 concentration (p < .02), and fewer numbers of circulating neutrophils (p < .05). Following the exercise, LPS-stimulated elastase release per neutrophil fell 31 % below baseline values on the PLA trial (p = .06) compared with 11% on the CHO trial (p = .30). Plasma TNF-α concentration increased following the exercise (main effect of time, p < .001) but was not affected by CHO. These data indicate that CHO ingestion attenuates changes in plasma IL-6 concentration, neutrophil trafficking, and LPS-stimulated neutrophil degranulation in response to intermittent exercise that involves bouts of very high intensity exercise.

scholarly journals PO-043 The Effects of One-Time High Intensity Intermittent Training on Expression of LC3 Gene in Rats’ White Adipose Tissue

2018 ◽  
Vol 1 (3) ◽  
Author(s):  
Qishu Zhou ◽  
Chunyu Liang ◽  
Yafei Li ◽  
Yi Yan
Keyword(s):  
Adipose Tissue ◽  
White Adipose Tissue ◽  
High Intensity ◽  
High Fat Diet ◽  
Intermittent Exercise ◽  
Diet Group ◽  
Control Group ◽  
High Fat ◽  
Subcutaneous White Adipose Tissue ◽  
White Fat

Objective  To investigate the effect of one-time high-intensity intermittent exercise in white fat autophagy in obese rats and provide a theoretical basis of the molecular mechanism of exercise fat loss. Methods  Eighteen male 3-weeks-old rats were selected and divided into control group fed with normal diet (C), high-fat diet group fed with high fat diet (H). After 16 weeks, there were twelve obesity rats that divided into diet group (HS) and exercise group (HE). The other six control group rats of 19 weeks age were used as the standard (CS group). OE group did the high intensity intermittent exercise once. The CS group and the CS group were kept quietly. Three groups were taken subcutaneous white adipose tissue(S) and epididymal white adipose tissue (E) immediately after exercise. Mensurate the expression of LC3 gene in the tissue using the fluorescent quantitative PCR. Results 1. The expression of LC3 mRNA from white fat tissue was different to the tissues, which the expression of epididymal white adipose tissue of each group was higher than that in subcutaneous white adipose tissue (P <0.01). 2. Compared with CS group, the expression of epididymal white fat adipose tissue LC3 mRNA decreased (P<0.01) and the expression of the subcutaneous white adipose tissue increased from HS group (P <0.05). 3. Compared with OS group, the expression of epididymal white fat adipose tissue LC3 mRNA decreased (P<0.05) and the expression of subcutaneous white adipose tissue decreased from OS group. Conclusions The expression of LC3mRNA in epididymal white fat adipose tissue of rats was significantly higher than that of subcutaneous white fat. The changes of LC3mRNA expression of adipose tissue caused by high-fat diet have tissue differences. One-time high-intensity intermittent exercise can reduce the expression of LC3mRNA in fat tissue of obese rats. Its regulatory mechanism needs to be further studied.

scholarly journals AN EFFECTIVE HIGH-INTENSITY INTERMITTENT EXERCISE PROTOCOL FOR DECREASING SKELETAL MUSCLE GLYCOGEN

2011 ◽  
Vol 60 (5) ◽  
pp. 493-502 ◽  
Author(s):  
KEISUKE SHIOSE ◽  
TAKURO TOBINA ◽  
YASUKI HIGAKI ◽  
AKIRA KIYONAGA ◽  
HIROAKI TANAKA
Keyword(s):  
Skeletal Muscle ◽  
Muscle Glycogen ◽  
High Intensity ◽  
Intermittent Exercise ◽  
Exercise Protocol ◽  
Skeletal Muscle Glycogen

Fatigue resistance during high-intensity intermittent exercise from childhood to adulthood in males and females

2009 ◽  
Vol 106 (5) ◽  
pp. 645-653 ◽  
Author(s):  
Konstantina Dipla ◽  
Theano Tsirini ◽  
Andreas Zafeiridis ◽  
Vasiliki Manou ◽  
Athanassios Dalamitros ◽  
...  
Keyword(s):  
Fatigue Resistance ◽  
High Intensity ◽  
Intermittent Exercise ◽  
Males And Females

scholarly journals Muscle metabolic responses during high-intensity intermittent exercise measured by 31P-MRS: relationship to the critical power concept

2013 ◽  
Vol 305 (9) ◽  
pp. R1085-R1092 ◽  
Author(s):  
Weerapong Chidnok ◽  
Fred J. DiMenna ◽  
Jonathan Fulford ◽  
Stephen J. Bailey ◽  
Philip F. Skiba ◽  
...  
Keyword(s):  
High Intensity ◽  
Critical Power ◽  
Intermittent Exercise ◽  
High Intensity Exercise ◽  
Interval Duration ◽  
Constant Power ◽  
Recovery Interval ◽  
Duration Relationship ◽  
Recovery Protocols ◽  
Work Done

We investigated the responses of intramuscular phosphate-linked metabolites and pH (as assessed by 31P-MRS) during intermittent high-intensity exercise protocols performed with different recovery-interval durations. Following estimation of the parameters of the power-duration relationship, i.e., the critical power ( CP) and curvature constant ( W′), for severe-intensity constant-power exercise, nine male subjects completed three intermittent exercise protocols to exhaustion where periods of high-intensity constant-power exercise (60 s) were separated by different durations of passive recovery (18 s, 30 s and 48 s). The tolerable duration of exercise was 304 ± 68 s, 516 ± 142 s, and 847 ± 240 s for the 18-s, 30-s, and 48-s recovery protocols, respectively ( P < 0.05). The work done > CP ( W> CP) was significantly greater for all intermittent protocols compared with the subjects' W′, and this difference became progressively greater as recovery-interval duration was increased. The restoration of intramuscular phosphocreatine concentration during recovery was greatest, intermediate, and least for 48 s, 30 s, and 18 s of recovery, respectively ( P < 0.05). The W> CP in excess of W′ increased with greater durations of recovery, and this was correlated with the mean magnitude of muscle phosphocreatine reconstitution between work intervals ( r = 0.61; P < 0.01). The results of this study show that during intermittent high-intensity exercise, recovery intervals allow intramuscular homeostasis to be restored, with the degree of restoration being related to the duration of the recovery interval. Consequently, and consistent with the intermittent CP model, the ability to perform W> CP during intermittent high-intensity exercise and, therefore, exercise tolerance, increases when recovery-interval duration is extended.

scholarly journals High-intensity intermittent exercise training with chlorella intake accelerates exercise performance and muscle glycolytic and oxidative capacity in rats

2017 ◽  
Vol 312 (4) ◽  
pp. R520-R528 ◽  
Author(s):  
Naoki Horii ◽  
Natsuki Hasegawa ◽  
Shumpei Fujie ◽  
Masataka Uchida ◽  
Eri Miyamoto-Mikami ◽  
...  
Keyword(s):  
Exercise Performance ◽  
Oxidative Metabolism ◽  
High Intensity ◽  
Citrate Synthase ◽  
Intermittent Exercise ◽  
Oxidative Capacity ◽  
Monocarboxylate Transporter ◽  
Peroxisome Proliferator ◽  
Sprague Dawley ◽  
Peroxisome Proliferator Activated Receptor

The purpose of this study was to investigate the effect of chronic chlorella intake alone or in combination with high-intensity intermittent exercise (HIIE) training on exercise performance and muscle glycolytic and oxidative metabolism in rats. Forty male Sprague-Dawley rats were randomly assigned to the four groups: sedentary control, chlorella intake (0.5% chlorella powder in normal feed), HIIE training, and combination of HIIE training and chlorella intake for 6 wk ( n = 10 each group). HIIE training comprised 14 repeats of a 20-s swimming session with a 10-s pause between sessions, while bearing a weight equivalent to 16% of body weight, 4 days/week. Exercise performance was tested after the interventions by measuring the maximal number of HIIE sessions that could be completed. Chlorella intake and HIIE training significantly increased the maximal number of HIIE sessions and enhanced the expression of monocarboxylate transporter (MCT)1, MCT4, and peroxisome proliferator-activated receptor γ coactivator-1α concomitantly with the activities of lactate dehydrogenase (LDH), phosphofructokinase, citrate synthase (CS), and cytochrome- c oxidase (COX) in the red region of the gastrocnemius muscle. Furthermore, the combination further augmented the increased exercise performance and the enhanced expressions and activities. By contrast, in the white region of the muscle, MCT1 expression and LDH, CS, and COX activities did not change. These results showed that compared with only chlorella intake and only HIIE training, chlorella intake combined with HIIE training has a more pronounced effect on exercise performance and muscle glycolytic and oxidative metabolism, in particular, lactate metabolism.

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