Training monitoring, Athlete

Michael D Kennedy, Camilla J Knight, Joao Henrique Falk Neto, Katie S Uzzell, Sara W Szabo
Background: Given the multi-modal nature of triathlon (swimming, cycling, running), training for a triathlon event has numerous potential health benefits including physical fitness. However, triathletes also have a high prevalence of health issues including overuse injury, illness, fatigue, and burnout. To address the ongoing prevalence of health issues, roundtable discussions were organized at the International Triathlon Union Science of Triathlon 2017 conference to develop strategic objectives deemed necessary to "futureproof triathlon"...
2020: BMC Sports Science, Medicine and Rehabilitation
Stef Feijen, Angela Tate, Kevin Kuppens, Anke Claes, Filip Struyf
BACKGROUND: Competitive swimmers are exposed to enormous volumes of swim training that may overload the soft tissue structures and contribute to shoulder pain. An understanding of training factors associated with the injury is needed before practice guidelines can be developed. OBJECTIVES: To investigate the relationship between swim-training volume and shoulder pain and to determine swim-training volume and shoulder pain prevalence across the life span of the competitive swimmer...
January 2020: Journal of Athletic Training
Patrick G Campbell, Ian B Stewart, Anita C Sirotic, Geoffrey M Minett
Wellness questionnaires are common in monitoring systems, yet the sensitivity to variations in acute training intensity is unclear. This study examined the controlled dosage effects of differing exercise intensities on wellness variables and subsequent associations with neuromuscular performance. Participants ( n  = 10) completed low-, moderate- and high-intensity conditions of a 90 min simulated football match shuttle running protocol scaled relative to beep test scores. The protocols were completed in a randomised and counterbalanced fashion matched for time of day...
January 7, 2020: European Journal of Sport Science
Joshua D Ruddy, Stuart Cormack, Ryan G Timmins, Alex Sakadjian, Samuel Pietsch, David L Carey, Morgan D Williams, David A Opar
INTRODUCTION: This study aimed to 1) identify the impact of external load variables on changes in wellness and 2) identify the impact of age, training/playing history, strength levels and pre-season loads on changes in wellness in elite Australian footballers. METHODS: Data were collected from one team (45 athletes) during the 2017 season. Self-reported wellness was collected daily (4=best score possible, 28=worst score possible). External load/session availability variables were calculated using global positioning systems/session availability data from every training session and match...
December 31, 2019: Medicine and Science in Sports and Exercise
Gabriel J Sanders, Brian Boos, Jessica Rhodes, Corey A Peacock, Roger O Kollock, Cory M Scheadler
Sanders, GJ, Boos, B, Rhodes, J, Peacock, CA, Kollock, RO, and Scheadler, CM. Variability of competition-based caloric expenditure and relative heart rates in National Collegiate Athletic Association Division I women's basketball. J Strength Cond Res XX(X): 000-000, 2019-Basketball athletes frequently engage in high intensities (≥85% HRpeak) throughout competition, and it is unknown how high-intensity play coincides with caloric expenditure and average and peak relative heart rates. The purpose of the study was to assess caloric expenditure throughout 31 games (4- to 10-minute quarters) in National Collegiate Athletic Association Division I women's basketball...
December 27, 2019: Journal of Strength and Conditioning Research
Marta Kozior, Philip M Jakeman, Catherine Norton
Key opinion leaders in sport and exercise nutrition advocate for a personalised and periodised approach to assessment and prescription. However, dietary analysis platforms have not advanced to this level of detail, making recommendations from key researchers unexploited in the applied setting. Our objective was to advance nutritional assessment methods (data collection and analysis) of athletes to place training and competition stimulus at the core of a personalised, periodised approach.We term this approach peri-training nutrition (PTN)...
December 20, 2019: Applied Physiology Nutrition and Metabolism
Sarah Kölling, Alexander Ferrauti, Tim Meyer, Mark Pfeiffer, Michael Kellmann
Despite the general consensus regarding the implementation of self-report measures in the training monitoring, there is a lack of research about their applicability and comprehensibility among developing athletes. However, this target group needs special considerations to manage the increasing training demands while maintaining health and performance. This study deals with challenges of applying recovery-stress questionnaires which were validated with adult populations among developing athletes and presents a possible approach to enhance their applicability...
2019: Frontiers in Physiology
Karim Hader, Michael C Rumpf, Maxime Hertzog, Liam P Kilduff, Olivier Girard, Joao R Silva
BACKGROUND: Monitoring athletes' external load during a soccer match may be useful to predict post-match acute and residual fatigue. This estimation would allow individual adjustments to training programs to minimize injury risk, improve well-being, and restore players' physical performance and inform the recovery process. METHODS: Using a systematic review and meta-analysis of the literature, the aim is to determine which monitoring variables would be the strongest predictors of acute (immediately) and residual (up to 72 h) fatigue states in soccer...
December 9, 2019: Sports Medicine—Open
Rafel Cirer-Sastre, Alejandro Legaz-Arrese, Francisco Corbi, Isaac López-Laval, Jose Puente-Lanzarote, Vicenç Hernández-González, Joaquín Reverter-Masià
Training load (TL) metrics are usually assessed to estimate the individual, physiological and psychological, acute, and adaptive responses to training. Cardiac troponins (cTn) reflect myocardial damage and are routinely analyzed for the clinical diagnosis of myocardial injury. The association between TL and post-exercise cTn elevations is scarcely investigated in young athletes, especially after playing common team sports such as soccer. The objective of this study was to assess the relationship between TL measurements during a small-sided soccer game and the subsequent increase in cTn in young players...
December 2, 2019: International Journal of Environmental Research and Public Health
Helmi Chaabene, Olaf Prieske, Melanie Lesinski, Ingo Sandau, Urs Granacher
The aim of this study is to monitor short-term seasonal development of young Olympic weightlifters' anthropometry, body composition, physical fitness, and sport-specific performance. Fifteen male weightlifters aged 13.2 ± 1.3 years participated in this study. Tests for the assessment of anthropometry (e.g., body-height, body-mass), body-composition (e.g., lean-body-mass, relative fat-mass), muscle strength (grip-strength), jump performance (drop-jump (DJ) height, countermovement-jump (CMJ) height, DJ contact time, DJ reactive-strength-index (RSI)), dynamic balance (Y-balance-test), and sport-specific performance (i...
November 30, 2019: Sports
Christina Mack, Rachel R Sendor, Gary Solomon, Richard G Ellenbogen, Emily Myers, Mitchel Berger, Allen Sills
BACKGROUND: The real-time detection of concussive injury in professional sports can be challenging for the healthcare provider on the sideline. It can be difficult to monitor all on-field players during active game play and diagnose complex injuries such as concussion during a fast-paced athletic event. OBJECTIVE: To enhance the in-game identification of potentially concussed professional athletes, the National Football League (NFL) initiated an Unaffiliated Neurotrauma Consultants (UNC) program in 2013, which, in tandem with other in-arena spotters and live video review systems, is designed to improve the safety of the players through enhanced concussion detection efforts...
December 3, 2019: Neurosurgery
Agnese Sbrollini, Micaela Morettini, Elvira Maranesi, Ilaria Marcantoni, Amnah Nasim, Roberta Bevilacqua, Giovanni R Riccardi, Laura Burattini
Sport Database is a collection of 126 cardiorespiratory data, acquired through wearable sensors from 81 subjects while practicing 10 different sports. Each cardiorespiratory dataset consists of demographic info (gender, age, weight, height, smoking habit, alcohol consumption and weekly training rate), cardiorespiratory signals (electrocardiogram, heart-rate series, RR-interval series and breathing-rate series) and training notes. Demographic info was collected by survey. Cardiorespiratory signals were acquired through the chest strap BioHarness 3...
December 2019: Data in Brief
Matthew Buckthorpe, Francesco Della Villa
Outcomes following anterior cruciate ligament (ACL) reconstruction need improving, with poor return-to-sport rates and high risk of secondary re-injury. There is a need to improve rehabilitation strategies after ACL reconstruction, if we can support enhanced patient outcomes. This paper discusses how to optimise the mid-stage rehabilitation process after ACL reconstruction. Mid-stage is a difficult and vitally important stage of the functional recovery process and provides the foundation on which to commence late-stage rehabilitation training...
November 28, 2019: Sports Medicine
Elie Nader, David Monedero, Mélanie Robert, Sarah Skinner, Emeric Stauffer, Agnès Cibiel, Michèle Germain, Jules Hugonnet, Alexander Scheer, Philippe Joly, Céline Renoux, Philippe Connes, Stéphane Égée
PURPOSE: Blood rheology is a key determinant of blood flow and tissue perfusion. There are still large discrepancies regarding the effects of an acute running exercise on blood rheological properties and red blood cell (RBC) physiology. We investigated the effect of a 10 km running trial on markers of blood rheology and RBC physiology in endurance trained athletes. METHODS: Blood was sampled before and after the exercise to measure lactate and glucose, hematological and hemorheological parameters (blood viscosity, RBC deformability, and aggregation), eryptosis markers (phosphatidylserine and CD47 exposure, RBC reactive oxygen species), RBC-derived microparticles (RBC-MPs), and RBC electrophysiological activity...
November 27, 2019: European Journal of Applied Physiology
Bailey Theall, Haoyan Wang, Connor A Kuremsky, Eunhan Cho, Katelyn Hardin, Lyle Robelot, Jack Marucci, Shelly Mullenix, Nathan Lemoine, Neil M Johannsen, Brian A Irving, Guillaume Spielmann
Collegiate athletes are exposed to varying levels of academic and physical stressors, placing them at increased risk for stress-activated latent viral infections. However, the impact of allostatic stress load on the immune response to maximal exercise in athletes remains largely unknown. PURPOSE: This study examined the effects of a seven-month training period and Cytomegalovirus (CMV) serostatus on immune cell response to high-intensity swim tests within a group of collegiate swimmers...
November 27, 2019: Journal of Applied Physiology
Jianjun Luo, Ziming Wang, Liang Xu, Aurelia Chi Wang, Kai Han, Tao Jiang, Qingsong Lai, Yu Bai, Wei Tang, Feng Ru Fan, Zhong Lin Wang
In the new era of internet of things, big data collection and analysis based on widely distributed intelligent sensing technology is particularly important. Here, we report a flexible and durable wood-based triboelectric nanogenerator for self-powered sensing in athletic big data analytics. Based on a simple and effective strategy, natural wood can be converted into a high-performance triboelectric material with excellent mechanical properties, such as 7.5-fold enhancement in strength, superior flexibility, wear resistance and processability...
November 26, 2019: Nature Communications
Thomas Haugen, Stephen Seiler, Øyvind Sandbakk, Espen Tønnessen
Despite a voluminous body of research devoted to sprint training, our understanding of the training process leading to a world-class sprint performance is limited. The objective of this review is to integrate scientific and best practice literature regarding the training and development of elite sprint performance. Sprint performance is heavily dependent upon genetic traits, and the annual within-athlete performance differences are lower than the typical variation, the smallest worthwhile change, and the influence of external conditions such as wind, monitoring methodologies, etc...
November 21, 2019: Sports Medicine—Open
Wen-Ching Huang, Mon-Chien Lee, Chia-Chia Lee, Ker-Sin Ng, Yi-Ju Hsu, Tsung-Yu Tsai, San-Land Young, Jin-Seng Lin, Chi-Chang Huang
Probiotics have been rapidly developed for health promotion, but clinical validation of the effects on exercise physiology has been limited. In a previous study, Lactobacillus plantarum TWK10 (TWK10), isolated from Taiwanese pickled cabbage as a probiotic, was demonstrated to improve exercise performance in an animal model. Thus, in the current study, we attempted to further validate the physiological function and benefits through clinical trials for the purpose of translational research. The study was designed as a double-blind placebo-controlled experiment...
November 19, 2019: Nutrients
Theofanis Tzatzakis, Konstantinos Papanikolaou, Dimitrios Draganidis, Panagiotis Tsimeas, Savvas Kritikos, Athanasios Poulios, Vasiliki C Laschou, Chariklia K Deli, Athanasios Chatzinikolaou, Alexios Batrakoulis, Georgios Basdekis, Magni Mohr, Peter Krustrup, Athanasios Z Jamurtas, Ioannis G Fatouros
PURPOSE: To determine the recovery kinetics of performance, muscle damage, and neuromuscular fatigue following 2 speed-endurance production training (SEPT) protocols in soccer. METHODS: Ten well-trained, male soccer athletes randomly completed 3 trials: work-to-rest ratio (SEPT) 1:5, SEPT/1:8, and a control trial. Training load during SEPT was monitored using global positioning system and heart-rate monitors. Performance (isokinetic strength of knee extensors and flexors, speed, and countermovement jump) and muscle damage (delayed-onset muscle soreness [DOMS] and creatine kinase) were evaluated at baseline and at 0, 24, 48 and 72 h posttraining...
November 21, 2019: International Journal of Sports Physiology and Performance
Cruz Hogan, Martyn J Binnie, Matthew Doyle, Leanne Lester, Peter Peeling
PURPOSE: To compare methods of monitoring and prescribing on-water exercise intensity (heart rate [HR], stroke rate [SR], and power output [PO]) during sprint kayak training. METHODS: Twelve well-trained flat-water sprint kayak athletes completed a preliminary on-water 7 × 4-min graded exercise test and a 1000-m time trial to delineate individual training zones for PO, HR, and SR into a 5-zone model (T1-T5). Subsequently, athletes completed 2 repeated trials of an on-water training session, where intensity was prescribed based on individual PO zones...
November 18, 2019: International Journal of Sports Physiology and Performance
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