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https://www.readbyqxmd.com/read/28437638/motor-expertise-and-performance-in-spatial-tasks-a-meta-analysis
#1
Daniel Voyer, Petra Jansen
The present study aimed to provide a summary of findings relevant to the influence of motor expertise on performance in spatial tasks and to examine potential moderators of this effect. Studies of relevance were those in which individuals involved in activities presumed to require motor expertise were compared to non-experts in such activities. A final set of 62 effect sizes from 33 samples was included in a multilevel meta-analysis. The results showed an overall advantage in favor of motor experts in spatial tasks (d=0...
April 21, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28422523/can-the-lamberts-submaximal-cycle-test-reflect-overreaching-in-professional-cyclists
#2
Lieselot Decroix, Robert P Lamberts, Romain Meeusen
PURPOSE: The Lamberts and Lambert Submaximal Cycle Test (LSCT) consists of 3 stages during which cyclist's cycle for 6 minutes at 60%, 6 minutes at 80% and 3 minutes at 90% of their maximal heart rate, followed by one-minute recovery. It was the aim of this study to determine if the LSCT is able to reflect a state of functional overreaching in professional female cyclists during an 8-day training camp and the following recovery days. METHODS: Six professional female cyclists performed an LSCT on day 1, day 5 and day 8 of the training camp and 3 days after the training camp...
April 19, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28422520/low-level-laser-therapy-improves-performance-and-reduces-fatigue-in-competitive-cyclists
#3
Fábio J Lanferdini, Rodrigo R Bini, Bruno M Baroni, Kelli D Klein, Felipe P Carpes, Marco A Vaz
Evidence supports that low-level laser therapy (LLLT) minimizes fatigue effects on muscle performance. However, the ideal LLLT dosage to improve athletes' performance during sports activities, such as cycling, is still unclear. Therefore, the goal of this study was to investigate the effects of different LLLT dosages on cyclists' performance in time-to-exhaustion tests. In addition, we looked at the effects of LLLT on the frequency content of the EMG signals to assess fatigue mechanisms. Twenty male competitive cyclists participated in a crossover, randomized, double-blind and placebo-controlled trial...
April 19, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28379266/keto-analogues-and-amino-acids-supplementation-induces-a-decrease-of-white-blood-cell-counts-and-a-reduction-of-muscle-damage-during-intense-exercise-under-thermoneutral-conditions
#4
R C P Lima, S R A S Camerino, T C L França, D S A Rodrigues, M G S Gouveia, A Ximenes-da-Silva, A Bassini, E S Prado, L C Cameron
This study evaluated the acute effect of keto analogue and amino acid (AA-KAAA) supplementation on both white blood cell counts and the established biomarkers of muscle damage during exercise under thermoneutral conditions. Sixteen male cyclists received a ketogenic diet for two days and were divided into two equal groups: a group taking AA-KAAA (KA) or a control group (PL). The athletes performed a two hour cycling session followed by a maximum incremental test until voluntary exhaustion (VExh). Blood samples were obtained at rest and during exercise for further hematological and biochemical analyses...
April 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28368959/the-effects-of-a-cycling-warm-up-including-high-intensity-heavy-resistance-conditioning-contractions-on-subsequent-4-km-time-trial-performance
#5
Alan Chorley, Kevin L Lamb
Prior exercise has been shown to improve subsequent performance via different mechanisms. Sport-specific conditioning contractions can be used to exploit the 'post-activation potentiation' (PAP) phenomenon to enhance performance although this has rarely been investigated in short endurance events. The aim of this study was to compare a cycling warm-up with PAP-inducing conditioning contractions (CW) with a moderate intensity warm-up (MW) on performance and physiological outcomes of 4 km time trial. Ten well-trained male endurance cyclists (V[Combining Dot Above]O2max 65...
March 25, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28278174/exploring-the-performance-reserve-effect-of-different-magnitudes-of-power-output-deception-on-4-000-m-cycling-time-trial-performance
#6
Mark R Stone, Kevin Thomas, Michael Wilkinson, Emma Stevenson, Alan St Clair Gibson, Andrew M Jones, Kevin G Thompson
PURPOSE: The aim of the present study was to investigate whether a magnitude of deception of 5% in power output would lead to a greater reduction in the amount of time taken for participants to complete a 4000 m cycling TT than a magnitude of deception of 2% in power output, which we have previously shown can lead to a small change in 4000 m cycling TT performance. METHODS: Ten trained male cyclists completed four, 4000 m cycling TTs. The first served as a habituation and the second as a baseline for future trials...
2017: PloS One
https://www.readbyqxmd.com/read/28188371/the-effect-of-functional-overreaching-on-parameters-of-autonomic-heart-rate-regulation
#7
Clint R Bellenger, Rebecca L Thomson, Eileen Y Robertson, Kade Davison, Maximillian J Nelson, Laura Karavirta, Jonathan D Buckley
PURPOSE: Correlations between fatigue-induced changes in performance and maximal rate of HR increase (rHRI) may be affected by differing assessment workloads. This study evaluated the effect of assessing rHRI at different workloads on performance tracking, and compared this with HR variability (HRV) and HR recovery (HRR). METHODS: Performance [5-min cycling time trial (5TT)], rHRI (at multiple workloads), HRV and HRR were assessed in 12 male cyclists following 1 week of light training (LT), 2 weeks of heavy training (HT) and a 10-day taper (T)...
March 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28181210/the-differences-in-ecgs-interpretation-in-top-level-athletes
#8
Agnieszka A Jakubiak, Krystyna Burkhard-Jagodzińska, Wojciech Król, Marcin Konopka, Dominik Bursa, Dariusz Sitkowski, Marek Kuch, Wojciech Braksator
BACKGROUND: The Ministry of Health in Poland recommends ECG- based cardiovascular screening in athletes, but so far, there is lack of guidelines on preparticipation assessment. We compared different criteria of ECG screening assessment in the group of top-level athletes. AIMS: The aims were to evaluate the prevalence of ECG changes in athletes that necessitate further cardiological work-up according to three criteria in various age groups as well as to identify factors determining the occurrence of changes related and unrelated to the training...
February 9, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28149346/differences-in-physiological-responses-to-interval-training-in-cyclists-with-and-without-interval-training-experience
#9
Rafal Hebisz, Paulina Hebisz, Jacek Borkowski, Marek Zatoń
The aim of this study was to determine differences in glycolytic metabolite concentrations and work output in response to an all-out interval training session in 23 cyclists with at least 2 years of interval training experience (E) and those inexperienced (IE) in this form of training. The intervention involved subsequent sets of maximal intensity exercise on a cycle ergometer. Each set comprised four 30 s repetitions interspersed with 90 s recovery periods; sets were repeated when blood pH returned to 7.3...
April 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/27997257/solid-gel-and-liquid-carbohydrate-format-effects-on-gut-comfort-and-performance
#10
Mathilde Guillochon, David S Rowlands
Carbohydrate sports drinks produce worthwhile benefits to endurance performance compared with non-caloric controls. However, athletes now consume carbohydrate in a range of formats, including gels and bars, but the comparable performance outcomes are unknown. Therefore, the aim of this study was to establish the relative effects of drink, gel, bar, and mixed carbohydrate formats on intense cycling performance. In a treatment-apparent randomised crossover design, 12 well-trained male cyclists completed 4 trials comprising a 140-min race simulation, followed by a double-blind slow-ramp to exhaustion (0...
December 20, 2016: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/27967282/whole-body-vibration-increases-subsequent-sprint-performance-in-well-trained-cyclists
#11
Bent R Rønnestad, Gunnar Slettaløkken Falch, Stian Ellefsen
PURPOSE: Postactivation potentiation (PAP) exercise with added whole-body vibration (WBV) has been suggested as a potential way to acutely improve sprint performance. In cycling, there are many competitions and situations where sprinting abilities are important. In the present study we investigated the effect of adding WBV to warm-up procedures on subsequent cycle sprint performance. METHODS: Eleven well-trained cyclists participated in the study. All cyclists performed a familiarization session before two separate test sessions in randomized order...
December 14, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27918663/comparison-of-critical-power-and-w-derived-from-two-or-three-maximal-tests
#12
Len Parker Simpson, Mehdi Kordi
PURPOSE: Typically, accessing the asymptote (Critical Power; CP) and curvature constant (W') parameters of the hyperbolic power-duration relationship requires multiple constant-power, exhaustive exercise trials, spread over several visits. However, more recently single-visit protocols and personal power meters have been used. We investigated the practicality of using a two-trial, single-visit protocol in providing reliable CP & W' estimates. METHODS: 8 trained cyclists underwent 3- and 12-min maximal exercise trials in a single session to derive (2-trial) CP & W' estimates...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27779439/comparison-of-ergometer-and-track-based-testing-in-junior-track-sprint-cyclists-implications-for-talent-identification-and-development
#13
Paul J Tofari, Stuart J Cormack, Tammie R Ebert, A Scott Gardner, Justin G Kemp
Talent identification (TID) and talent development (TDE) programmes in track sprint cycling use ergometer- and track-based tests to select junior athletes and assess their development. The purpose of this study was to assess which tests are best at monitoring TID and TDE. Ten male participants (16.2 ± 1.1 year; 178.5 ± 6.0 cm and 73.6 ± 7.6 kg) were selected into the national TID squad based on initial testing. These tests consisted of two 6-s maximal sprints on a custom-built ergometer and 4 maximal track-based tests (2 rolling and 2 standing starts) using 2 gear ratios...
October 25, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27747789/hyperoxia-extends-time-to-exhaustion-during-high-intensity-intermittent-exercise-a-randomized-crossover-study-in-male-cyclists
#14
Toshiyuki Ohya, Ryo Yamanaka, Hayato Ohnuma, Masahiro Hagiwara, Yasuhiro Suzuki
BACKGROUND: Some endurance athletes exhibit exercise-induced arterial hypoxemia during high-intensity exercise. Inhalation of hyperoxic gas during exercise has been shown to counteract this exercise-associated reduction in hemoglobin oxygen saturation (SaO2), but the effects of hyperoxic gas inhalation on performance and SaO2 during high-intensity intermittent exercise remain unclear. This study investigated the effects of hyperoxic gas inhalation on performance and SaO2 during high-intensity intermittent cycling exercise...
December 2016: Sports Medicine—Open
https://www.readbyqxmd.com/read/27713701/improvements-in-cycling-time-trial-performance-are-not-sustained-following-the-acute-provision-of-challenging-and-deceptive-feedback
#15
Hollie S Jones, Emily L Williams, David Marchant, S Andy Sparks, Craig A Bridge, Adrian W Midgley, Lars R Mc Naughton
The provision of performance-related feedback during exercise is acknowledged as an influential external cue used to inform pacing decisions. The provision of this feedback in a challenging or deceptive context allows research to explore how feedback can be used to improve performance and influence perceptual responses. However, the effects of deception on both acute and residual responses have yet to be explored, despite potential application for performance enhancement. Therefore, this study investigated the effects of challenging and deceptive feedback on perceptual responses and performance in self-paced cycling time trials (TT) and explored whether changes in performance are sustained in a subsequent TT following the disclosure of the deception...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27632247/performance-relationships-in-timed-and-mass-start-events-for-elite-omnium-cyclists
#16
Kathryn E Phillips, Will G Hopkins
PURPOSE: To explore the extent to which factors that determine performance transfer within and between time-trial and mass-start events in the track-cycling Omnium. METHODS: Official finish rank in the three time-trial events, in the three mass-start events, and in the competition overall were collated in 20 international Omnium competitions between 2010 and 2014 for 196 male and 140 female cyclists. Linear mixed modelling of the log-transformed finish time for the time-trial events and of log-transformed finish rank for all events and final rank provided estimates of within-athlete race-to-race changes in performance and average between-athlete differences across a season...
September 15, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27618339/the-effect-of-maximal-explosive-strength-training-on-performance-indicators-in-cyclists
#17
Kris Beattie, Brian P Carson, Mark Lyons, Ian C Kenny
Cycling economy (CE), power at maximal oxygen uptake (WV̇O2max) and anaerobic function (i.e. sprinting ability) are considered to be the best physiological performance indicators in elite road cyclists. In addition to cardiovascular function, these physiological indicators are partly dictated by neuromuscular factors. One technique to improve neuromuscular function in athletes is through strength training. The aim of this study was to investigate the effect of a 20 week maximal- and explosive-strength training intervention on strength (maximal- , explosive-strength & bike-specific explosive-strength), WV̇O2max, CE and body composition (body mass, fat & lean mass) in cyclists...
September 6, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27614882/markers-of-biological-stress-in-response-to-a-single-session-of-high-intensity-interval-training-and-high-volume-training-in-young-athletes
#18
Yvonne Kilian, Florian Engel, Patrick Wahl, Silvia Achtzehn, Billy Sperlich, Joachim Mester
PURPOSE: The aim of the present study was to compare the effects of high-intensity interval training (HIIT) vs high-volume training (HVT) on salivary stress markers [cortisol (sC), testosterone (sT), alpha-amylase (sAA)], metabolic and cardiorespiratory response in young athletes. METHODS: Twelve young male cyclists (14 ± 1 years; 57.9 ± 9.4 mL min(-1) kg(-1) peak oxygen uptake) performed one session of HIIT (4 × 4 min intervals at 90-95 % peak power output separated by 3 min of active rest) and one session of HVT (90 min constant load at 60 % peak power output)...
December 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27559318/cycling-in-the-absence-of-task-related-feedback-effects-on-pacing-and-performance
#19
Benjamin L M Smits, Remco C J Polman, Bert Otten, Gert-Jan Pepping, Florentina J Hettinga
INTRODUCTION: To achieve personal goals in exercise task completion, exercisers have to regulate, distribute, and manage their effort. In endurance sports, it has become very commonplace for athletes to consult task-related feedback on external devices to do so. The aim of the present study was to explore the importance of the presence of this information by examining the influence of the absence of commonly available task-related feedback on effort distribution and performance in experienced endurance athletes...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27556488/comparison-of-watermelon-and-carbohydrate-beverage-on-exercise-induced-alterations-in-systemic-inflammation-immune-dysfunction-and-plasma-antioxidant-capacity
#20
RANDOMIZED CONTROLLED TRIAL
R Andrew Shanely, David C Nieman, Penelope Perkins-Veazie, Dru A Henson, Mary P Meaney, Amy M Knab, Lynn Cialdell-Kam
Consuming carbohydrate- and antioxidant-rich fruits during exercise as a means of supporting and enhancing both performance and health is of interest to endurance athletes. Watermelon (WM) contains carbohydrate, lycopene, l-citrulline, and l-arginine. WM may support exercise performance, augment antioxidant capacity, and act as a countermeasure to exercise-induced inflammation and innate immune changes. Trained cyclists (n = 20, 48 ± 2 years) participated in a randomized, placebo controlled, crossover study...
August 22, 2016: Nutrients
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