scholarly journals Effects of post‐exercise glucose ingestion at different solution temperatures on glycogen repletion in mice

2021 ◽  
Vol 9 (18) ◽  
Author(s):  
Yutaka Matsunaga ◽  
Sho Koyama ◽  
Kenya Takahashi ◽  
Yumiko Takahashi ◽  
Terunaga Shinya ◽  
...  
Keyword(s):  
Post Exercise ◽  
Glucose Ingestion ◽  
Glycogen Repletion

Sucrose Ingestion Accelerates Post-exercise Liver-, But Not Muscle Glycogen Repletion When Compared To Glucose Ingestion

2016 ◽  
Vol 48 ◽  
pp. 820
Author(s):  
Cas J. Fuchs ◽  
Javier T. Gonzalez ◽  
Milou Beelen ◽  
Naomi M. Cermak ◽  
Fiona E. Smith ◽  
...  
Keyword(s):  
Muscle Glycogen ◽  
Post Exercise ◽  
Glucose Ingestion ◽  
Glycogen Repletion

Post - Exercise Glycogen Supercompensation in Liver and Muscle after Glucose Ingestion in Rats

1998 ◽  
Vol 33 (3) ◽  
pp. 892
Author(s):  
Hae Hun Jeung ◽  
Jong Chul Ahn ◽  
Dong Chul Lee ◽  
Su Yong Park ◽  
Suck Kang Lee
Keyword(s):  
Post Exercise ◽  
Glucose Ingestion

scholarly journals Post-exercise taurine administration enhances glycogen repletion in tibialis anterior muscle

2014 ◽  
Vol 3 (5) ◽  
pp. 531-537 ◽  
Author(s):  
Yumiko Takahashi ◽  
Yutaka Matsunaga ◽  
Yuki Tamura ◽  
Eiki Urushibata ◽  
Shin Terada ◽  
...  
Keyword(s):  
Tibialis Anterior ◽  
Tibialis Anterior Muscle ◽  
Post Exercise ◽  
Glycogen Repletion

The effect of magnesium oxide supplementation on muscle glycogen metabolism before and after exercise and at slaughter in sheep

2001 ◽  
Vol 52 (7) ◽  
pp. 723 ◽  
Author(s):  
G. E. Gardner ◽  
R. H. Jacob ◽  
D. W. Pethick
Keyword(s):  
Magnesium Oxide ◽  
Muscle Glycogen ◽  
Glycogen Metabolism ◽  
Post Exercise ◽  
Exercise Regimen ◽  
Before And After ◽  
Series Of Experiments ◽  
Glycogen Repletion ◽  
Exercise Muscle ◽  
Muscle Biopsies

This study was a series of experiments designed to test the influence of supplemental magnesium oxide (MgO) on muscle glycogen concentration in sheep exposed to stress (exercise) and the commercial slaughter process, and to test the effectiveness of this supplement in the commercial scenario. In Expt 1, Merino wethers maintained on a mixed ration (metabolisable energy 11 MJ/kg and crude protein 16.3% in DM) were supplemented with MgO at the rate of 0%, 0.5%, or 1% of their ration for 10 days prior to a single bout of exercise and for 10 days prior to slaughter at a commercial abattoir. The exercise regimen consisted of 4 intervals of 15 min, with muscle biopsies taken by biopsy drill from the m. semimembranosis (SM) and m. semitendinosis (ST) pre-exercise and immediately post-exercise, and at 36 and 72 h post-exercise. Muscle biopsies were also taken 1 week prior to slaughter from the SM and ST, with further samples taken approximately 30 min post-slaughter. Ultimate pH (pHu) of the SM, ST, and m. longissimus dorsi (LD) was measured 48 h after slaughter. Sheep supplemented with MgO lost less muscle glycogen in the ST during exercise, and repleted more muscle glycogen in the SM during the post-exercise repletion phase, than unsupplemented sheep. The supplemented animals also had higher muscle glycogen concentrations in the ST at slaughter. In Expt 2, MgO was administered to Merino wether lambs for 4 days prior to slaughter in the form of a water-borne slurry at a rate equivalent to 1% of their ration. This treatment resulted in significantly reduced muscle glycogen concentrations in both the SM and ST at slaughter. In Expts 3–5, MgO was used as an ‘in-feed’ supplement in the commercial scenario. In each case, slaughter-weight Merino lambs were supplemented with MgO at the rate of 1% of their ration for 4 days prior to commercial slaughter. Positive responses were seen in 2 of the 3 experiments, with increased glycogen concentrations and a reduced pHu. The animals that demonstrated no response to MgO had the lowest pHu after slaughter, suggesting a minimal stress load, thus providing very little scope for an effect of the MgO supplement. We conclude that MgO can reduce the effects of exercise, leading to a subsequent reduction in glycogen loss, and an increase in the rate of glycogen repletion in skeletal muscle following exercise. The results support MgO supplementation as a viable option for reducing the stress associated with commercial slaughter.

scholarly journals Pre-Exercise High-Fat Diet for 3 Days Affects Post-Exercise Skeletal Muscle Glycogen Repletion

2017 ◽  
Vol 63 (5) ◽  
pp. 323-330 ◽  
Author(s):  
Yumiko TAKAHASHI ◽  
Yutaka MATSUNAGA ◽  
Yuki TAMURA ◽  
Shin TERADA ◽  
Hideo HATTA
Keyword(s):  
Skeletal Muscle ◽  
Muscle Glycogen ◽  
High Fat Diet ◽  
High Fat ◽  
Post Exercise ◽  
Skeletal Muscle Glycogen ◽  
Glycogen Repletion

β-Adrenergic blockade counteracts starvational ketosis, but aggravates post-exercise ketosis in non-athletes

1988 ◽  
Vol 119 (1) ◽  
pp. 167-171 ◽  
Author(s):  
Y. A. K. Vahed ◽  
J. H. Koeslag ◽  
J. de V. Lochner
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Body Mass ◽  
Blood Concentration ◽  
Adrenergic Blockade ◽  
Blood Concentrations ◽  
Post Exercise ◽  
Glucose Ingestion ◽  
Propranolol Administration ◽  
The Difference

ABSTRACT Post-exercise ketosis is not abolished by glucose ingestion immediately after exercise but is counteracted by simultaneous β-adrenergic blockade. To investigate the effect of β-adrenergic blockade on post-exercise ketosis without the ingestion of glucose, we administered propranolol (1 mg/kg body mass) to 15 carbohydrate-starved people, of whom five had just walked 9 km in 2 h. There were 43 control subjects (no propranolol). The blood concentration of 3-hydroxybutyrate rose from 0·18 ± 0·02 (s.e.m.) mmol/l at 07.00 h to 0·35 ±0 04 mmol/l at 09.00 h whether the subjects had exercised during those 2 h or not (d.f. = 57). The blood concentration of 3-hydroxybutyrate at 15.00 h in the groups not treated with propranolol was not affected by exercise (0·95 ± 0·90 mmol/l; d.f. = 42). Propranolol significantly raised the concentration of 3-hydroxybutyrate at 15.00 h to 1·68 ±0·26 mmol/l when given after exercise (d.f. = 4), but lowered it to 0·46 ±0·07 mmol/l in the non-exercised group (d.f. = 9). This was not accompanied by significant differences in the blood concentrations of glucose, free fatty acid, insulin or glucagon. The difference in response to propranolol administration is probably determined by the alanine and lactate flux from muscle for hepatic oxaloacetate synthesis. J. Endocr. (1988) 119, 167–171

scholarly journals Effects of glucose ingestion at different frequencies on glycogen recovery in mice during the early hours post exercise

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Yutaka Matsunaga ◽  
Kenya Takahashi ◽  
Yumiko Takahashi ◽  
Hideo Hatta
Keyword(s):  
Muscle Glycogen ◽  
Blood Glucose Concentration ◽  
Liver Glycogen ◽  
Glycogen Storage ◽  
Carbohydrate Intake ◽  
Treadmill Running ◽  
Plasma Insulin Concentration ◽  
Post Exercise ◽  
Glycogen Concentration ◽  
Glucose Ingestion

Abstract Background When a high-carbohydrate diet is ingested, whether as small frequent snacks or as large meals, there is no difference between the two with respect to post-exercise glycogen storage for a period of 24 h. However, the effect of carbohydrate intake frequency on glycogen recovery a few hours after exercise is not clear. Athletes need to recover glycogen quickly after physical exercise as they sometimes exercise multiple times a day. The aim of this study was to determine the effect of carbohydrate intake at different frequencies on glycogen recovery during the first few hours after exercise. Methods After 120 min of fasting, 6-week-old male ICR mice were subjected to treadmill running exercise (20 m/min for 60 min) to decrease the levels of muscle and liver glycogen. Mice were then given glucose as a bolus (1.2 mg/g of body weight [BW], immediately after exercise) or as a pulse (1.2 mg/g of BW, every 15 min × 4 times). Following this, the blood, tissue, and exhaled gas samples were collected. Results In the bolus group, blood glucose concentration was significantly lower and plasma insulin concentration was significantly higher than those in the pulse group (p < 0.05). The plantaris muscle glycogen concentration in the bolus group was 25.3% higher than that in the pulse group at 60 min after glucose ingestion (p < 0.05). Liver glycogen concentration in the pulse group was significantly higher than that in the bolus group at 120 min after glucose ingestion (p < 0.05). Conclusions The present study showed that ingesting a large amount of glucose immediately after exercise increased insulin secretion and enhanced muscle glycogen recovery, whereas frequent and small amounts of glucose intake was shown to enhance liver glycogen recovery.

scholarly journals Sucrose ingestion after exhaustive exercise accelerates liver, but not muscle glycogen repletion compared with glucose ingestion in trained athletes

2016 ◽  
Vol 120 (11) ◽  
pp. 1328-1334 ◽  
Author(s):  
Cas J. Fuchs ◽  
Javier T. Gonzalez ◽  
Milou Beelen ◽  
Naomi M. Cermak ◽  
Fiona E. Smith ◽  
...  
Keyword(s):  
Muscle Glycogen ◽  
Glycogen Content ◽  
Liver Volume ◽  
Liver Glycogen ◽  
Resonance Spectroscopy ◽  
Time Treatment ◽  
Liver Glycogen Content ◽  
Glucose Ingestion ◽  
Postexercise Recovery ◽  
Glycogen Repletion

The purpose of this study was to assess the effects of sucrose vs. glucose ingestion on postexercise liver and muscle glycogen repletion. Fifteen well-trained male cyclists completed two test days. Each test day started with glycogen-depleting exercise, followed by 5 h of recovery, during which subjects ingested 1.5 g·kg−1·h−1 sucrose or glucose. Blood was sampled frequently and 13C magnetic resonance spectroscopy and imaging were employed 0, 120, and 300 min postexercise to determine liver and muscle glycogen concentrations and liver volume. Results were as follows: Postexercise muscle glycogen concentrations increased significantly from 85 ± 27 (SD) vs. 86 ± 35 mmol/l to 140 ± 23 vs. 136 ± 26 mmol/l following sucrose and glucose ingestion, respectively (no differences between treatments: P = 0.673). Postexercise liver glycogen concentrations increased significantly from 183 ± 47 vs. 167 ± 65 mmol/l to 280 ± 72 vs. 234 ± 81 mmol/l following sucrose and glucose ingestion, respectively (time × treatment, P = 0.051). Liver volume increased significantly over the 300-min period after sucrose ingestion only (time × treatment, P = 0.001). As a result, total liver glycogen content increased during postexercise recovery to a greater extent in the sucrose treatment (from 53.6 ± 16.2 to 86.8 ± 29.0 g) compared with the glucose treatment (49.3 ± 25.5 to 65.7 ± 27.1 g; time × treatment, P < 0.001), equating to a 3.4 g/h (95% confidence interval: 1.6-5.1 g/h) greater repletion rate with sucrose vs. glucose ingestion. In conclusion, sucrose ingestion (1.5 g·kg−1·h−1) further accelerates postexercise liver, but not muscle glycogen repletion compared with glucose ingestion in trained athletes.

Relative Contributions of Lactate Glyconeogenesis and Cori Cycle to Muscle Glycogen Repletion Post-Exercise using [1−13C]Glucose

2006 ◽  
Vol 38 (Supplement) ◽  
pp. S16
Author(s):  
Timothy J. Fairchild ◽  
Luis D.M.C.B. Ferreira ◽  
Paul A. Fournier ◽  
Jill Kanaley
Keyword(s):  
Muscle Glycogen ◽  
Post Exercise ◽  
Cori Cycle ◽  
Glycogen Repletion
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