Tim Podlogar- BSc, MSc, PhD
- Lecturer at University of Exeter
Tim Podlogar
- BSc, MSc, PhD
- Lecturer at University of Exeter
About
44
Publications
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362
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Introduction
PhD in Exercise Metabolism from the University of Birmingham.
Lecturer at the University of Exeter.
Head of Sports Science at the Human Performance Centre
Nutrition Consultant for Tudor Pro Cycling
Current institution
Education
December 2016 - December 2020
September 2015 - September 2016
October 2012 - July 2015
University of Ljubljana, Faculty of Sports
Field of study
- Kinesiology
Publications
Publications (44)
The importance of carbohydrate as a fuel source for exercise and athletic performance is well established. Equally well developed are dietary carbohydrate intake guidelines for endurance athletes seeking to optimize their performance. This narrative review provides a contemporary perspective on research into the role of, and application of, carbohy...
It was previously demonstrated that postexercise ingestion of fructose–glucose mixtures can lead to superior liver and equal muscle glycogen synthesis as compared with glucose-based carbohydrates (CHOs) only. After an overnight fast, liver glycogen stores are reduced, and based on this we hypothesized that addition of fructose to a glucose-based br...
Purpose
This study aimed to investigate whether carbohydrate ingestion during 3 h long endurance exercise in highly trained cyclists at a rate of 120 g h ⁻¹ in 0.8:1 ratio between fructose and glucose-based carbohydrates would result in higher exogenous and lower endogenous carbohydrate oxidation rates as compared to ingestion of 90 g h ⁻¹ in 1:2 r...
Post-exercise recovery strategies influence the body’s ability to restore physiological homeostasis, replenish energy stores, repair muscle damage, and promote desired adaptations, which improve exercise performance. This narrative review examines the impact of nutritional strategies commonly used for enhancing recovery and subsequent exercise perf...
Physiological resilience or durability is now recognised as a determinant of endurance performance such as road cycling. Reliable, ecologically valid and standardised performance tests in laboratory-based cycling protocols have to be established to investigate mechanisms underpinning, and interventions improving durability. This review aims to prov...
There is little evidence that body size alters exogenous glucose oxidation rates during exercise. This study assessed whether larger people oxidize more exogenous glucose during exercise than smaller people. Fifteen cyclists were allocated into two groups based on body mass (SMALL, <70 kg body mass, n = 9, two females) or (LARGE, >70 kg body mass,...
Introduction
Peripheral blood stem cell (PBSC) donation is the primary procedure used to collect hematopoietic stem and progenitor cells (HSPCs) for hematopoietic stem cell transplantation. Single bouts of exercise transiently enrich peripheral blood with HSPCs and cytolytic natural killer cells (CD56dim), which are important in preventing post-tra...
Current guidelines do not consider body size for carbohydrate intake during exercise. This study assessed whether larger people can oxidise more exogenous glucose during exercise than smaller people. Fifteen cyclists were allocated into two groups based on body mass (SMALL, < 70 kg body mass, n = 9, 2 female) or (LARGE, > 70 kg body mass, n = 6) ma...
Post-exercise recovery interventions enable athletes to overcome greater training loads and thereby enhancing their performance. Post-exercise recovery strategies serve to optimize recovery, help lower performance decline and prevent overtraining. The purpose of this study was to examine the current practices and attitudes towards post-exercise rec...
Post-exercise recovery interventions enable athletes to overcome greater training loads and thereby enhancing their performance. Post-exercise recovery strategies serve to optimize recovery, help lower performance decline and prevent overtraining. The purpose of this study was to examine the current practices and attitudes towards post-exercise rec...
Ingested galactose can enhance post-exercise liver glycogen repletion when combined with glucose but effects on muscle glycogen synthesis are unknown. In this double-blind randomised study participants (7 men, 2 women; VO 2 max: 51.1 (8.7) ml·kg ⁻¹ ·min ⁻¹ ) completed 3 trials of exhaustive cycling exercise followed by a 4-h recovery period, during...
Dear Editor, While we were surprised by the timing, we would nevertheless like to thank Mr Dotan for his comment on our viewpoint. Mr Dotan reiterates our main point; that maximal oxygen uptake (V̇O2max) is an insufficient metric when classifying participants and describing the training status. We also appear to be in agreement that the intensity c...
Co-ingestion of glucose and galactose has been shown to enhance splanchnic extraction and metabolism of ingested galactose at rest; effects during exercise are unknown. This study examined whether combined ingestion of galactose and glucose during exercise enhances exogenous galactose oxidation. 14 endurance-trained male and female participants (ag...
Serious amateur and elite athletes regularly take part in structured physiological testing sessions so that their progress gets tracked and training loads in the training plan correctly prescribed. Commonly, athletes are tested for the maximal oxygen uptake (V̇O2max) and maximal lactate steady state intensity (MLSS). While for the former expensive...
Emerging trends in technological innovations, data analysis and practical applications have facilitated the measurement of cycling power output in the field, leading to improvements in training prescription, performance testing and race analysis. This review aimed to critically reflect on power profiling strategies in association with the power-dur...
Available evidence indicates that elevated blood ketones are associated with improved hypoxic tolerance in rodents. From this perspective, we hypothesized that exogenous ketosis by oral intake of the ketone ester (R)-3-hydroxybutyl (R)-3-hydroxybutyrate (KE) may induce beneficial physiological effects during prolonged exercise in acute hypoxia. As...
The purpose of this double‐blinded, crossover randomized and counterbalanced study was to compare the effects of ingesting a tepid commercially available carbohydrate–menthol‐containing sports drink (menthol) and an isocaloric carbohydrate‐containing sports drink (placebo) on thermal perception and cycling endurance capacity “in a simulated home vi...
Monitoring core body temperature (Tc) during training and competitions, especially in a hot environment, can help enhance an athlete’s performance, as well as lower the risk for heat stroke. Accordingly, a noninvasive sensor that allows reliable monitoring of Tc would be highly beneficial in this context. One such novel non-invasive sensor was rece...
[Main text in Slovene]. The most important predictors of performance in endurance sports are maximal oxygen uptake, the second lactate threshold or critical power and movement efficiency. For a long time it was believed that resistance training is not suitable for endurance athletes due to unwanted increases in muscle mass and training of muscle fi...
Purpose:
Ingesting readily oxidized carbohydrates (CHO) such as sucrose during exercise can improve endurance performance. Whether lactose can be utilized as a fuel source during exercise is unknown. The purpose of this study was to investigate the metabolic response to lactose ingestion during exercise, compared to sucrose or water.
Methods:
11...
Background: Current sports nutrition guidelines recommend athletes ingest carbohydrates at 1.0–1.2 g·kg⁻¹·h⁻¹ to optimize repletion of muscle glycogen during short-term recovery from endurance exercise. However, they do not provide specific advice on monosaccharides (e.g., fructose or glucose) other than to ingest carbohydrates of moderate to high...
Training with low carbohydrate availability enhances endurance training adaptations but training volume may be compromised. We explored whole body metabolism and performance with delayed carbohydrate feeding during exercise undertaken following acute sleep low training. We hypothesised this strategy would not suppress fat oxidation and would mainta...
Jadranje je eden izmed tradicionalnih olimpijskih športov. Ena izmed značilnosti jadranja je gibanje, imenovano vise- nje, ki je značilnost več olimpijskih in neolimpijskih tekmo- valnih razredov. Visenje zaznamuje visok delež izometrične kontrakcije. Ta članek predstavi fiziološko ozadje visenja in ponudi priporočilo za kondicijsko pripravo visenj...
Kljub temu, da je jadranje eden izmed pomembnih olim- pijskih športov in velja za eno najstarejših športnih panog sploh, je v znanstveni literaturi precej zapostavljeno. Priču- joči članek predstavi smernice za športno prehrano jadral- cev v olimpijskih in mladinskih razredih v času tekmovanj.
One of the major limiting factors during prolonged endurance exercise is limited carbohydrate availability as a consequence of finite carbohydrates stores in the body. Carbohydrates are stored in the form of glycogen in muscles and in the liver. Given that
full glycogen repletion takes ~24-h, have investigators over the past few decades explored wa...
Traditionally athletes are advised to train with high carbohydrate availability at all times as this allows them to achieve high training volumes and enables them to train at the high intensities. However, recently a new approach has been introduced termed as carbohydrate periodisation that involves performing certain training sessions with reduced...
Purpose:
Restoring skeletal muscle and hepatic glycogen content during short-term (<6 h) recovery from prolonged exercise is pertinent for athletes seeking to maximize performance in repeated exercise bouts. Previous research suggests that coingestion of fructose-glucose carbohydrate sources augments hepatic and has equivalent effects on skeletal...
Creatine is one of the most studied ergogenic nutritional supplements. Its positive e ects on the high-intensity exercise capac- ity and increase in lean muscle mass are well supported in the literature, which makes it very attractive for the athletes. Since decrease in muscle mass is a common issue of the ageing population, the use of creatine cou...
Beljakovine igrajo v človeškem telesu po-membno vlogo, še posebej pri športni-kih, saj so mišice v večji meri sestavljene prav iz beljakovin. Gradniki beljakovin so aminokisline, od katerih jih 9 imenuje-mo tudi esencialne in jih moramo v telo vnesti s prehrano. Aminokislina levcin igra pri mišični sintezi najpomembnejšo vlogo, saj lahko, podobno k...
Training for muscle hypertrophy has received a lot of scientific and public attention recently. This article summarizes current body of literature regarding optimization of muscle hypertrophy by manipulating different training variables such as intensity, volume, exercise selection, rest interval, muscle failure and repetition speed, which are thou...
V zadnjih nekaj desetletjih je prevladalo mnenje, da izguba telesne mase, večja od 2 % kot posledica hipohidracije, ne- gativno vpliva na zmogljivost. Opažanja iz športnih priredi- tev kažejo, da velik delež športnikov v cilj pride tudi do 10 % lažjih,ne da bi imeli vidne znake zmanjšanja zmogljivosti in/ali vročinskega stresa. Novejše raziskave ka...
An increase in sugar consumption has been associated with many diseases. Fructose received special attention for the ability to raise uric acid levels in the blood. Furthermore, it was shown that exercise in the heat can also increase uric acid concentrations. A possible consequence is hyperuricemia, a condition that is linked with numerous disease...
Current guidelines for strength training aiming at muscle hypertrophy recommend using relatively high loads and relatively low number of repetitions (65–90 % 1RM, 8–12 repetitions). These guidelines developed from a theoretical model and have never been scientifically proven. In recent years investigators have been researching this topic and gained...
A growing number of athletes utilize low carbohydrate diets (LC). The majority of to-date studies investigated the performance effects of transitioning from a high-carbohydrate diet (HC) to a LC diet. However, the effects of a contrary, LC to HC diet transition, on performance at moderate and high intensities have not been studied. Accordingly, thi...
Urška Bukovnik has in the article named »Low-carbohydrate diets. Are they suitable for athletes?« presented incomplete and incorrect information regarding the diets with reduced carbohydrate intake. Ketogenic diet with reduced carbohydrate to less than 50 g/day is from health perspective truly safe diet and currently available data in scientific li...
Questions
Questions (10)
We are planning to run a study validating a commercially available product (i.e. software) and while we initially planned to do it independently of the manufacturer, they heard about our intention and got in touch saying they would provide the software. Now I am wondering if we have to sign a contract in which we state that they give us software but they do not have the access to the whole data-set and do not have any say on the final manuscript. Has anyone been in a similar situation and can provide some advice?
I am running an exercise study in which people have to undergo three different experimental conditions each (repeated measures design). Each trial ends with a cycling time trial. Some participants are unable to finish the time trial in one condition as it is too difficult. Can I still perform normal repeated measures ANOVA and assign this not completed trials time of the worst subject?
I will be conducting an exercise study in obese inactive population and ethical committee wants to see some statistics on rates of acute cardiovascular events for this population. Any suggestions on which paper to reference and what data to give them?
I was wondering whether someone has any data available for fasted vs. fed training on HR measures at the same power output.
Can the intensity during a study protocol at the moderate intensity be paced via HR or is there a big difference between fed and fasted and therefore HR would not be appropriate?
I would guess that HR is higher during fasted, as fat oxidation is less efficient, but on the contrary I have seen two studies reporting data and they reported the contrary (higher HR in fed state). Any ideas and recommendations?
How much water are we able to absorb in given amount of time in rest or during exercise? I have came across different values and can't really figure out what is to be advised to ultra endurance athletes performing in the heat, as accumulation of unabsorbed fluid can cause gastrointestinal problems ...
Is there a study that has measured resting metabolic rates on people after different nutrition interventions, like ketogenic diet versus ordinary western diet?
I am wondering what is your opinion on the claim that rice isn't appropriate mean for treating injuries as well as promoting healing process during recovery.
Linked is an interesting view ...
I'd like to perform a small research on a few people for my undergraduate dissertation. I will collect lactate samples from earlobes. Is the consent from the participants enough, or do I need something more?
I am looking for a study or an article, where it is defined what the minimum range of motions for each joint are, in order to prevent injuries. To be able to see if a patient has impaired flexibility or not.
