Abstract：
:The purpose of this study was to examine the effect of exercise and pre-exercise dietary manipulation on hepatic triglyceride concentration (HTGC). HTGC was measured by proton magnetic resonance spectroscopy ((1)H-MRS) before and after 90 min of moderate intensity cycling in six endurance trained males following 67 h of mixed diet (M) and an isocaloric minimal carbohydrate (2%) high fat (83%) diet (HF). Diets were administered by balanced crossover design. Whole-body fat oxidation, plasma-free fatty acid (FFA), glycerol and triglyceride concentrations were significantly elevated during exercise in HF versus M (P < 0.05 for all). There was no significant treatment × time interaction for HTGC (P = 0.368). However, there was a significant net increase in HTGC (time effect) during the combined 6 h exercise and post-exercise period (P = 0.037). In conclusion, we observed no measurable net change in the hepatic triglyceride pool across a period involving a prolonged exercise bout. Furthermore, manipulation of pre-exercise dietary intake did not influence the interaction between the hepatic triglyceride concentration and exercise in lean trained men. This supports the contention that hepatic triglycerides do not meaningfully contribute to the high rate of fat oxidation observed during acute exercise, or the enhancement of this with regular exercise training and/or pre-exercise dietary manipulation.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Johnson NA,van Overbeek D,Chapman PG,Thompson MW,Sachinwalla T,George Jdoi
10.1007/s00421-011-2158-ysubject
Has Abstractpub_date
2012-05-01 00:00:00pages
1817-25issue
5eissn
1439-6319issn
1439-6327journal_volume
112pub_type
杂志文章abstract：:The percutaneous muscle biopsy technique is an important tool used in exercise and applied physiology to study human skeletal muscle structure, adaptation, and regeneration. One important use of this technique has been the assessment of ultrastructural muscle damage, especially in tissue samples obtained following str...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
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abstract：:Limited research documents if new and existing interactive computer gaming "exergaming" increase energy expenditure and cardio-respiratory costs comparable to common exercise modalities. To address this, healthy male volunteers (n = 15) completed six by 12-min test elements: PlayStation2 (PS2(hand)), Nintendo Wii boxi...
journal_title：European journal of applied physiology
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abstract：:This study is an investigation of the relationship between muscle morphology and surface electromyographic (EMG) parameters [mean frequency of the power spectrum (MNF), signal amplitude (root mean square, RMS) and the signal amplitude ratio (SAR; i.e. the ratio between the RMS level during the passive part of the cont...
journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章,随机对照试验
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abstract：:Transcutaneous electrical nerve stimulation (TENS) increases local blood flow. It is not known whether increase in blood flow may be caused by inhibition of sympathetic activity, mediated by muscle metaboreflex activity. The purpose of this study was to evaluate the effect of TENS on metaboreflex activation and heart ...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
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更新日期：2012-04-01 00:00:00
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-015-3284-8
更新日期：2016-02-01 00:00:00
abstract：PURPOSE:We have argued that breathing 40 % O2 attenuates exercise hyperaemia by decreasing production of O2-dependent vasodilators. However, breathing 100 % O2 attenuated endothelium-dependent vasodilatation evoked by acetylcholine and this effect was prevented by vitamin C, implicating reactive oxygen species (ROS). W...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
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更新日期：2015-09-01 00:00:00
abstract：:Activity-related knee joint dysfunction is more prevalent in females than males. One explanation for the discrepancy is differences in movement patterns between the sexes. However, the underlying mechanisms responsible for these differences remain unidentified. This study tested spinal motor control mechanisms influen...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-012-2363-3
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journal_title：European journal of applied physiology
pub_type： 杂志文章
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journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-015-3255-0
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abstract：:Vibratory stimuli are thought to have the potential to promote neural and/or muscular (re)conditioning. This has been well described for whole-body vibration (WBV), which is commonly used as a training method to improve strength and/or functional abilities. Yet, this technique may present some limitations, especially ...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
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abstract：:This study aimed to investigate the involvement of cerebral oxygenation in limitation of maximal exercise. We hypothesized that O2 supplementation improves physical performance in relation to its effect on cerebral oxygenation during exercise. Eight untrained men (age 27 ± 6 years; VO2 max 45 ± 8 ml min(-1) kg(-1)) pe...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
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abstract：:A number of mechanisms have been proposed to explain the elevation in oxygen consumption following exercise. Biochemical processes that return muscle to its pre-exercise state do not account for all of the extra oxygen consumed after exercise (excess post-exercise oxygen consumption, EPOC). Muscle at rest after aerobi...
journal_title：European journal of applied physiology
pub_type： 杂志文章
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journal_title：European journal of applied physiology
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journal_title：European journal of applied physiology
pub_type： 杂志文章
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abstract：:Contribution of skin thermal sensors under inert gas narcosis to the raising hypothermia is not known. Such information is vital for understanding the impact of narcosis on behavioural thermoregulation, diver safety and judgment of thermal (dis)comfort in the hyperbaric environment. So this study aimed at establishing...
journal_title：European journal of applied physiology
pub_type： 杂志文章
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journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
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更新日期：2011-11-01 00:00:00
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journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-005-1325-4
更新日期：2005-07-01 00:00:00
abstract：:The incidence and nature of cardiac arrhythmias during static apnea were studied by monitoring the electrocardiogram (ECG) and oxygen saturation (SaO(2)) of 16 recreational breath-hold divers. All subjects completed a maximal apnea with a mean (+/-SD) breath-hold duration of 281 (+/-73) s without clinical complication...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-008-0945-x
更新日期：2009-03-01 00:00:00
abstract：:The diving response is the sequence of cardiovascular, respiratory and metabolic adjustments produced by apnoea and further strengthened by cooling of the facial area and/or hypoxia. This study aimed at comparing the cardiovascular response to diving of trained divers with that of a control group. In this order, 14 tr...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-2006-0
更新日期：2012-02-01 00:00:00
abstract：:Heart rate recovery (HRR) after submaximal exercise improves after training. However, it is unknown if this also occurs in already well-trained cyclists. Therefore, 14 well-trained cyclists (VO(2max) 60.3 +/- 7.2 ml kg(-1) min(-1); relative peak power output 5.2 +/- 0.6 W kg(-1)) participated in a high-intensity train...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-008-0952-y
更新日期：2009-03-01 00:00:00
abstract：:The purpose of this study was to determine for the first time by repeated non-invasive 13C-NMR spectrometry whether blood lactate concentration affects glycogen reduction in non-exercising muscle during prolonged (6 h) physical exercise in healthy adult males. Such an effect would indirectly show that glycogenolysis i...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
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更新日期：2004-08-01 00:00:00
abstract：:The present study investigated the use of a tri-axial accelerometer, Tracmor2, for the measurement of physical activity in children. Eleven children [age 6.9 (2.2) years, body mass 19.5 (5.3) kg and height 112.3 (14.4) cm] were studied. Total daily energy expenditure (TDEE) was measured using the doubly labeled water ...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-003-0891-6
更新日期：2003-08-01 00:00:00
