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Avish P Sharma, Philo U Saunders, Laura A Garvican-Lewis, Julien D Périard, Brad Clark, Christopher J Gore, Benjamin P Raysmith, Jamie Stanley, Eileen Y Robertson, Kevin G Thompson
The questionable efficacy of Live High Train High altitude training (LHTH) is compounded by minimal training quantification in many studies. We sought to quantify the training load (TL) periodization in a cohort of elite runners completing LHTH immediately prior to competition. Eight elite runners (6 males, 2 females) with a V̇O2peak of 70 ± 4 mL·kg-1 ·min-1 were monitored during 4 weeks of sea-level training, then 3-4 weeks LHTH in preparation for sea-level races following descent to sea-level. TL was calculated using the session rating of perceived exertion (sRPE) method, whereby duration of each training session was multiplied by its sRPE, then summated to give weekly TL...
December 2018: Journal of Sports Science & Medicine
Júlio A Costa, João Brito, Fábio Y Nakamura, Pedro Figueiredo, Eduardo Oliveira, António Rebelo
The aim of the current study was to analyze the influence of the timing of training and matches, and match location, on sleep pattern and nocturnal cardiac autonomic activity in female soccer players. A total of 17 female soccer players (age: 21.6 ± 2.3 years; mean ± SD) wore wrist actigraph units and heart rate (HR) monitors during night-sleep throughout 18 night-training days (NTD), 18 resting days (RD), and 6 match-days (MD; 3 away-matches [AM] and 3 home-matches [HM]) of the competitive period. Training load was quantified by session rating of perceived exertion (sRPE), heart rate (HR), training impulse (TRIMP), and subjective well-being...
November 18, 2018: Chronobiology International
Kate Ergo, Esther De Loof, Clio Janssens, Tom Verguts
Reward prediction errors (RPEs) are crucial to learning. Whereas these mismatches between reward expectation and reward outcome are known to drive procedural learning, their role in declarative learning remains underexplored. Earlier work from our lab addressed this, and consistently found that signed reward prediction errors (SRPEs; "better-than-expected" signals) boost declarative learning. In the current EEG study, we sought to explore the neural signatures of SRPEs. Participants studied 60 Dutch-Swahili word pairs while RPE magnitudes were parametrically manipulated...
November 2, 2018: NeuroImage
Durva Vahia, Adam Kelly, Harry Knapman, Craig A Williams
PURPOSE: When exposed to the same external load, players receive different internal loads, resulting in varied adaptations in fitness. In adult soccer, internal training load is measured using heart rate (HR) and session rating of perceived exertion (sRPE) scales, but these have been underutilized in youth soccer. This study investigated the in-season variation in correlation between HR and sRPE estimations of training load for adolescent soccer players. METHOD: Fifteen male professional adolescent players were monitored for 7 months...
October 28, 2018: Pediatric Exercise Science
Teun van Erp, Carl Foster, Jos J de Koning
PURPOSE: The relationship between various training load (TL) measures in professional cycling is not well explored. This study investigates the relationship between mechanical energy spent (in kJ), sRPE, LuTRIMP and TSS in training, races and time trials (TT). METHODS: From 4 consecutive years field data was collected from 21 professional cyclists and categorized as being collected in training, racing or TT's. kJ spent, sRPE, LuTRIMP and TSS were calculated and the correlations between the various TL's were made...
October 9, 2018: International Journal of Sports Physiology and Performance
Robert H Mann, Craig A Williams, Bryan C Clift, Alan R Barker
PURPOSE: To investigate the effect of measurement timing and concurrent validity of session (sRPE) and differential (dRPE) ratings of perceived exertion as measures of internal training load (ITL) in adolescent distance runners. METHODS: Fifteen adolescent distance runners (15.2 ± 1.6 y) performed a two-step incremental treadmill test for the assessment of maximal oxygen uptake, heart rate and the blood lactate responses. Participants were familiarised with RPE and dRPE during the treadmill test using Foster's modified CR-10 Borg scale...
August 30, 2018: International Journal of Sports Physiology and Performance
Rachelle D Davies, Eric C Parent, Craig D Steinback, Michael D Kennedy
Airway hyperresponsiveness (AHR), airway inflammation, and respiratory symptoms are common in competitive swimmers, however it is unclear how volume and intensity of training exacerbate these problems. Thus, our purpose was to measure AHR, inflammation, and respiratory symptoms after low, moderate, and high training loads in swimmers. Competitive youth swimmers (n=8) completed nine weeks of training split into three blocks (Low, Moderate, and High intensity). Spirometry at rest and post-bronchial provocation [Eucapnic Voluntary Hyperpnea (EVH)] and Fractional Exhaled Nitric Oxide (FeNO) were completed at the end of each training block...
2018: International Journal of Exercise Science
Derek A Crawford, Nicholas B Drake, Michael J Carper, Justin DeBlauw, Katie M Heinrich
The session rate of perceived exertion method (sRPE) has often been utilized in sports activities in which quantification of external training loads is challenging. The multi-modal, constantly varied nature of high intensity functional training (HIFT) represents a significant hurdle to calculate external work and the sRPE method may provide an elegant solution to this problem. However, no studies have investigated the psychometric properties of sRPE within HIFT interventions. Twenty-five healthy men and women participated in six weeks of HIFT...
August 21, 2018: Sports
Amber E Rowell, Robert J Aughey, Jo Clubb, Stuart J Cormack
Introduction: Training and competition load can cause neuromuscular fatigue (NMF) and modified movement strategy such as an increase in the contribution of the medio-lateral [PlayerLoadTM ML (%)] and decrease in the % vertical [PlayerLoadTM V (%)] vectors, to total PlayerLoadTM (accelerometer derived measurement in vertical, medio-lateral, and anterior-posterior planes) in matches. NMF assessment involves expensive equipment, however, given the modification of match movement strategy with NMF, this may be present in a standardized drill...
2018: Frontiers in Physiology
Callum J McCaskie, Warren B Young, Brendan B Fahrner, Marc Sim
PURPOSE: To examine the association between pre-season training variables and subsequent in-season performance in an elite Australian football team. METHODS: Data from forty-one elite male Australian footballers (mean±SD: age=23.4±3.1y; height=188.4±7.1cm; mass=86.7±7.9kg) was collected from one Australian Football League (AFL) club. Pre-season training data (external load, internal load, fitness testing and session participation) were collected across the 17-week pre-season phase (6-weeks pre-Christmas, 11-weeks post-Christmas)...
August 17, 2018: International Journal of Sports Physiology and Performance
Sean Williams, Stephen West, Dan Howells, Simon P T Kemp, Andrew A Flatt, Keith Stokes
A systems modelling approach can be used to describe and optimise responses to training stimuli within individuals. However, the requirement for regular maximal performance testing has precluded the widespread implementation of such modelling approaches in team-sport settings. Heart rate variability (HRV) can be used to measure an athlete's adaptation to training load, without disrupting the training process. As such, the aim of the current study was to assess whether chronic HRV responses, as a representative marker of training adaptation, could be predicted from the training loads undertaken by elite Rugby Sevens players...
September 2018: Journal of Sports Science & Medicine
Dajo Sanders, Teun van Erp, Jos J de Koning
PURPOSE: This study provides a retrospective analysis of a large competition database describing the intensity and load demands of professional road cycling races, highlighting the differences between men's and women's races. METHOD: Twenty male and ten female professional cyclists participated in this study. During 4 consecutive years, heart rate (HR), rating of perceived exertion (RPE) and power output (PO) data were collected during both male (n = 3024) and female (n = 667) professional races...
August 6, 2018: International Journal of Sports Physiology and Performance
Stuart R Graham, Stuart Cormack, Gaynor Parfitt, Roger Eston
PURPOSE: To assess and compare the validity of internal and external Australian football (AF) training-load measures for predicting preseason variation of match-play exercise intensity (MEI sim/min) using a variable dose-response model. METHODS: Twenty-on professional male AF players completed an 18-wk preseason macrocycle. Preseason internal training load was quantified using session RPE (sRPE) and external load from satellite and accelerometer data. Using a training-impulse (TRIMPs) calculation, external load expressed in arbitrary units (a...
August 6, 2018: International Journal of Sports Physiology and Performance
Catriona Lockhart, Brendan R Scott, Bradley Thoseby, Ben J Dascombe
Lockhart, C, Scott, BR, Thoseby, B, and Dascombe, BJ. Acute effects of interset rest duration on physiological and perceptual responses to resistance exercise in hypoxia. J Strength Cond Res XX(X): 000-000, 2018-This study aimed to determine whether manipulating interset rest periods during resistance training in hypoxia impacts on physiological and perceptual responses to exercise. Twelve healthy males completed 1 repetition maximum (1RM) testing for the bilateral leg extension, before completing 4 separate randomized trials comprising 5 × 10 repetitions of leg extensions at 70% 1RM...
July 30, 2018: Journal of Strength and Conditioning Research
Igor de Freitas Cruz, Lucas Adriano Pereira, Ronaldo Kobal, Katia Kitamura, Cristiano Cedra, Irineu Loturco, Cesar Cavinato Cal Abad
The aims of this study were to describe the session rating of perceived exertion (sRPE), total quality recovery (TQR), and variations in countermovement jump (CMJ) height throughout nine weeks of a competitive period in young female basketball players. In total, 10 young female basketball players (17.2 ± 0.4 years; 71.8 ± 15.0 kg; 177.2 ± 9.5 cm) participated in this study. The sRPE and TQR were assessed in each training session, whereas the CMJ height was assessed prior to the first weekly training session...
2018: PeerJ
Ramires Alsamir Tibana, Nuno Manuel Frade de Sousa, Gabriel Veloso Cunha, Jonato Prestes, Carlos Fett, Tim J Gabbett, Fabrício Azevedo Voltarelli
The aim of this study was to validate the quantification of internal training load (session rating perceived exertion, sRPE) and the effect of recall timing of sRPE during high-intensity functional training (HIFT) sessions. Thirteen male HIFT practitioners (age 27.2 ± 33 years, height 177.1 ± 4.0 cm, body mass 81.1 ± 9.0 kg) were monitored during two common HIFT training sessions: Fight Gone Bad (FGB) and Fran. The Edwards summated heart-rate-zone method was used as a reference measure of internal training load...
July 23, 2018: Sports
Roberto Baldassarre, Marco Bonifazi, Romain Meeusen, Maria Francesca Piacentini
PURPOSE: The 10-km open water swimming race is an endurance event that takes place in lakes, rivers or sea and is an Olympic event since 2008. The aim of the present brief report is to describe training volume and intensity distribution of elite open-water swimmers (OW-swimmers) during the 2016 Olympic season, verifying if, in order to maximize performance, most of the training would be performed at low intensities. METHODS: Eight elite Italian OW-swimmers (3 males and 5 females; 25±2-yrs, 1...
July 24, 2018: International Journal of Sports Physiology and Performance
Robert Collette, Michael Kellmann, Alexander Ferrauti, Tim Meyer, Mark Pfeiffer
Background: The relation between training load, especially internal load, and the recovery-stress state is of central importance for avoiding negative adaptations in high-performance sports like swimming. The aim of this study was to analyze the individual time-delayed linear effect relationship between training load and recovery-stress state with single case time series methods and to monitor the acute recovery-stress state of high-performance swimmers in an economical and multidimensional manner over a macro cycle...
2018: Frontiers in Physiology
Alireza Rabbani, Mohammad Karami Baseri, Jalil Reisi, Filipe Manuel Clemente, Mehdi Kargarfard
The aims of this study were a) to examine within-group changes of wellness and heart rate variability measures and b) to compare their sensitivity to a congested match schedule in collegiate soccer players (n = 8). Wellness (Hooper index and its subsets) and heart rate variability (Ln rMSSD, SDNN) measures were assessed after selected low-load (training sessions) and high-load (a congested match schedule) phases. Session rating of perceived exertion (sRPE) was computed for training and match sessions. A very likely large difference in accumulated sRPE was observed between low-load and high-load phases (+148...
October 1, 2018: Physiology & Behavior
Nicholas E Dalton-Barron, Shaun J McLaren, Christopher J Black, Michael Gray, Ben Jones, Gregory Roe
Dalton-Barron, NE, McLaren, SJ, Black, CJ, Gray, M, Jones, B, and Roe, G. Identifying contextual influences on training load: an example in professional rugby union. J Strength Cond Res XX(X): 000-000, 2018-We aimed to investigate the contextual factors influencing training load (TL), as determined by session rating of perceived exertion (sRPE-TL), accumulated within a match-to-match microcycle in rugby union players. Session rating of perceived exertion-TL data were collected daily from 35 professional rugby union players from the same team in the English Championship over the course of an in-season period...
July 2, 2018: Journal of Strength and Conditioning Research
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