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Monitoring training load

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https://www.readbyqxmd.com/read/29781942/effort-index-as-a-novel-variable-for-monitoring-the-level-of-effort-during-resistance-exercises
#1
David Rodríguez-Rosell, Juan M Yáñez-García, Julio Torres-Torrelo, Ricardo Mora-Custodio, Mário C Marques, Juan J González-Badillo
Rodríguez-Rosell, D, Yáñez-García, JM, Torres-Torrelo, J, Mora-Custodio, R, Marques, MC, and González-Badillo, JJ. Effort index as a novel variable for monitoring the level of effort during resistance exercises. J Strength Cond Res XX(X): 000-000, 2018-This study aimed to analyze the acute mechanical and metabolic response to resistance exercise protocols (REPs) defined by 2 variables: the first repetition's mean velocity and the percentage of velocity loss (%VL) over the set. The product of these 2 variables was termed the effort index (EI) and was used as an indicator of the degree of fatigue induced during each REP...
May 11, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29781938/physical-demands-of-amateur-domestic-and-representative-netball-in-one-season-in-new-zealand-assessed-using-heart-rate-and-movement-analysis
#2
Doug A King, Cloe Cummins, Patria A Hume, Trevor N Clark
King, DA, Cummins, C, Hume, PA, and Clark, TN. Physical demands of amateur domestic and representative netball in one season in New Zealand assessed using heart rate and movement analysis. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this descriptive cohort study was to describe physical demands of netball for positions and between playing levels using microtechnology. Data were collected from 34 female netball players across 3 teams at different levels (over 19 years representative [O19], under 19 years representative [U19], and open-age amateur club domestic) for 20 games using heart rate and microtechnology data...
May 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29776843/a-review-advocating-caution-with-major-league-soccer-expansion-and-investment-in-more-rehabilitation-professionals
#3
REVIEW
Cody J Mansfield, Carol Ferkovic-Mack, Julie Eibensteiner, Christy Zwolski
BACKGROUND AND PURPOSE: Major League Soccer (MLS) has aggressively expanded from 10 teams to 23 teams. With the addition of more teams, the league will have to dictate a schedule that maximizes the league's popularity, while also maintaining the health of the players. A longer season and congested game schedule could increase the risk of injury for players. The purpose of this commentary is to make recommendations for the prevention of injuries among MLS players with respect to proposed league expansion...
May 9, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29769817/reliability-of-single-leg-balance-and-landing-tests-in-rugby-union-prospect-of-using-postural-control-to-monitor-fatigue
#4
Jordan C Troester, Jason G Jasmin, Rob Duffield
The present study examined the inter-trial (within test) and inter-test (between test) reliability of single-leg balance and single-leg landing measures performed on a force plate in professional rugby union players using commercially available software (SpartaMARS, Menlo Park, USA). Twenty-four players undertook test - re-test measures on two occasions (7 days apart) on the first training day of two respective pre-season weeks following 48h rest and similar weekly training loads. Two 20s single-leg balance trials were performed on a force plate with eyes closed...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29764731/how-much-is-enough-in-rehabilitation-high-running-workloads-following-lower-limb-muscle-injury-delay-return-to-play-but-protect-against-subsequent-injury
#5
Jordan Stares, Brian Dawson, Peter Peeling, Michael Drew, Jarryd Heasman, Brent Rogalski, Marcus Colby
OBJECTIVES: Examine the influence of rehabilitation training loads on return to play (RTP) time and subsequent injury in elite Australian footballers. DESIGN: Prospective cohort study. METHODS: Internal (sessional rating of perceived exertion: sRPE) and external (distance, sprint distance) workload and lower limb non-contact muscle injury data was collected from 58 players over 5 seasons. Rehabilitation periods were analysed for running workloads and time spent in 3 rehabilitation stages (1: off-legs training, 2: non-football running, 3: group football training) was calculated...
April 10, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29745785/dose-response-relationship-between-training-load-and-changes-in-aerobic-fitness-in-professional-youth-soccer-players
#6
John F Fitzpatrick, Kirsty M Hicks, Philip R Hayes
PURPOSE: The aim of this study was to compare the dose-response relationship between, traditional arbitrary speed thresholds versus an individualised approach, with changes in aerobic fitness in professional youth soccer players. METHODS: Fourteen youth soccer players, completed a 1500 metre time trial to estimate maximal aerobic speed (km.h-1 , (MAS)) at the start and the end of a six week period. Training load was monitored on a daily basis during this study. External load measures were; total distance covered (TD), total acceleration and deceleration distance > 2m...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29742748/planning-training-workload-in-football-using-small-sided-games-density
#7
Sebastien Sangnier, Thierry Cotte, Olivier Brachet, Jeremy Coquart, Claire Tourny
Sangnier, S, Cotte, T, Brachet, O, Coquart, J, and Tourny, C. Planning training workload in football using small-sided games density. J Strength Cond Res XX(X): 000-000, 2018-To develop the physical qualities, the small-sided games' (SSGs) density may be essential in soccer. Small-sided games are games in which the pitch size, players' number, and rules are different to those for traditional soccer matches. The purpose was to assess the relation between training workload and SSGs' density. The 33 densities data (41 practice games and 3 full games) were analyzed through global positioning system (GPS) data collected from 25 professional soccer players (80...
May 8, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29702519/new-tool-to-control-and-monitor-weighted-vest-training-load-for-sprinting-and-jumping-in-soccer
#8
Jorge Carlos-Vivas, Tomás T Freitas, Miguel Cuesta, Jorge Perez-Gomez, Moisés De Hoyo, Pedro E Alcaraz
Carlos-Vivas, J, Freitas, TT, Cuesta, M, Perez-Gomez, J, De Hoyo, M, and Alcaraz, PE. New tool to control and monitor weighted vest training load for sprinting and jumping in soccer. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this study was to develop 2 regression equations that accurately describe the relationship between weighted vest loads and performance indicators in sprinting (i.e., maximum velocity, Vmax) and jumping (i.e., maximum height, Hmax). Also, this study aimed to investigate the effects of increasing the load on spatio-temporal variables and power development in soccer players and to determine the "optimal load" for sprinting and jumping...
April 26, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29699823/accelerometer-based-prediction-of-running-injury-in-national-collegiate-athletic-association-track-athletes
#9
Dovin Kiernan, David A Hawkins, Martin A C Manoukian, Madeline McKallip, Laura Oelsner, Charles F Caskey, Crystal L Coolbaugh
Running-related injuries (RRI) may result from accumulated microtrauma caused by combinations of high load magnitudes (vertical ground reaction forces; vGRFs) and numbers (strides). Yet relationships between vGRF and RRI remain unclear - potentially because previous research has largely been constrained to collecting vGRFs in laboratory settings and ignoring relationships between RRI and stride number. In this preliminary proof-of-concept study, we addressed these constraints: Over a 60-day period, each time collegiate athletes (n = 9) ran they wore a hip-mounted activity monitor that collected accelerations throughout the entire run...
April 12, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29697215/variability-of-activity-profile-during-medium-sided-games-in-professional-soccer
#10
Vincenzo Rago, João R Silva, Magni Mohr, Daniel Barreira, Peter Krustrup, António N Rebelo
BACKGROUND: In Southern European countries it is very frequent to perform medium-sized games (MSG) as last training drill. We analyzed the individual variability and changes in activity patterns during MSG throughout the preseason. METHODS: Activity profile during MSGs (10v10+goalkeepers, duration: 10-min, field length: 50 m, width: 90 m, area per player: 204.5 m2) was quantified using a GPS in 14 professional male players (6 defenders, 5 midfielders 5 and attackers)...
April 24, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29688115/monitoring-players-readiness-using-predicted-heart-rate-responses-to-football-drills
#11
Mathieu Lacome, Ben Simpson, Nick Broad, Martin Buchheit
PURPOSE: To examine the ability of multivariate models to predict the HR responses to some specific training drills from various GPS variables and to examine the usefulness of the difference in predicted vs actual HR responses as an index of fitness or readiness to perform. METHOD: All data were collected during one season (2016-2017) with players' soccer activity recorded using 5-Hz GPS and internal load monitored using heart rate (HR). GPS and HR data were analysed during typical small-sided games and a 4-min standardized submaximal run (12 km/h)...
April 24, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29687266/physiological-and-psychological-determinants-of-whole-body-endurance-exercise-following-short-term-sustained-operations-with-partial-sleep-deprivation
#12
Michail E Keramidas, Magnus Gadefors, Lars-Ove Nilsson, Ola Eiken
PURPOSE: The study examined the effects of short-term field-based military training with partial sleep deprivation on whole-body endurance performance in well-trained individuals. METHODS: Before and after a 2-day sustained operations (SUSOPS), 14 cadets performed a 15-min constant-load cycling at 65% of peak power output (PPO; CLT65 ), followed by an exhaustive constant-load trial at 85% of PPO (CLT85 ). Physiological [oxygen uptake ([Formula: see text]O2 ), heart rate (HR), mean arterial pressure (MAP), cardiac output (CO), and regional oxygenation (TOI) in the frontal cerebral cortex and vastus lateralis muscle] and psychological [effort perception (RPE), affective valence (FS), and perceived activation (FAS)] variables were monitored during exercise...
April 23, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29672214/use-of-artificial-neuronal-networks-for-prediction-of-the-control-parameters-in-the-process-of-anaerobic-digestion-with-thermal-pretreatment
#13
Rita Flores-Asis, Juan M Méndez-Contreras, Ulises Juárez-Martínez, Alejandro Alvarado-Lassman, Daniel Villanueva-Vásquez, Alberto A Aguilar-Lasserre
This article focuses on the analysis of the behavior patterns of the variables involved in the anaerobic digestion process. The objective is to predict the impact factor and the behavior pattern of the variables, i.e., temperature, pH, volatile solids (VS), total solids, volumetric load, and hydraulic residence time, considering that these are the control variables for the conservation of the different groups of anaerobic microorganisms. To conduct the research, samples of physicochemical sludge were taken from a water treatment plant in a poultry processing factory, and, then, the substrate was characterized, and a thermal pretreatment was used to accelerate the hydrolysis process...
April 19, 2018: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/29619798/seasonal-player-wellness-and-its-longitudinal-association-with-internal-training-load-study-in-elite-volleyball
#14
Filipe M Clemente, Bruno Mendes, José M Palao, André Silvério, Sandro Carriço, Francisco Calvete, Fábio Y Nakamura
BACKGROUND: Monitoring training load is critical to minimize the risk of overreaching, injury or illness. The purpose of this study was to assess the relationships and variance between perceived internal load and wellness status of elite male volleyball. METHODS: Thirteen elite volleyball players were studied during a full competitive season (nine months, 237 training sessions and 37 official matches). Perceived exertion, muscle soreness, stress, fatigue and sleep quality levels were daily measured using session RPE and the Hopper Questionnaire...
April 4, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29599868/strength-and-conditioning-coaches-application-of-the-session-rating-of-perceived-exertion-method-of-monitoring-within-professional-rugby-union
#15
Thomas Comyns, Aoife Hannon
Session rating of perceived exertion (session-RPE) is a method of monitoring and managing training loads. The purpose of this study was to research how and for what purpose strength and conditioning (S&C) coaches implement this monitoring method within professional rugby union. The study also aimed to assess if S&C coaches found this monitoring method to be valid and effective. An online survey containing 24 fixed response questions was used to assess how S&C coaches applied the session-RPE method...
March 2018: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29589291/modelling-movement-energetics-using-global-positioning-system-devices-in-contact-team-sports-limitations-and-solutions
#16
REVIEW
Adrian J Gray, Kathleen Shorter, Cloe Cummins, Aron Murphy, Mark Waldron
Quantifying the training and competition loads of players in contact team sports can be performed in a variety of ways, including kinematic, perceptual, heart rate or biochemical monitoring methods. Whilst these approaches provide data relevant for team sports practitioners and athletes, their application to a contact team sport setting can sometimes be challenging or illogical. Furthermore, these methods can generate large fragmented datasets, do not provide a single global measure of training load and cannot adequately quantify all key elements of performance in contact team sports...
March 27, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29584530/monitoring-training-load-recovery-and-performance-of-brazilian-professional-volleyball-players-during-a-season
#17
Paula B Debien, Marcelly Mancini, Danilo R Coimbra, Daniel G S de Freitas, Renato Miranda, Maurício G Bara Filho
PURPOSE: The aim of this study is to describe and analyze the distribution of internal training load (ITL), recovery, and physical performance of professional volleyball players throughout one season. METHODS: 15 male professional Brazilian volleyball players participated in this study. The session rating of perceived exertion (session-RPE) and Total Quality Recovery (TQR) score were collected daily for 36 weeks. The session-RPE was collected after each training session and the TQR before the first session of the day...
March 27, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29562142/using-velocity-loss-for-monitoring-resistance-training-effort-in-a-real-world-setting
#18
Paulo Gentil, Vítor A Marques, Josaphat P P Neto, Anna C G Santos, James Steele, James P Fisher, Antonio Paoli, Martim Bottaro
The purpose of the present study was to evaluate the changes in movement velocity during resistance training with different loads while the trainees are attempting to move the load at a pre-determined repetition duration. Twenty-one resistance-trained men (age: 25.7 ± 5 years; height: 177.0 ± 7.2 cm; mass: 85.4 ± 13.56 kg) volunteered to participate in the study. Participants performed two tests sessions. The first to determine 1 repetition maximum (1RM) load, and the second to evaluate velocity loss during a set to failure performed at 75% and 50% of 1RM using a 2 second concentric and 2 second eccentric repetition duration, controlled by a mobile app metronome...
March 21, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29559317/the-associations-between-training-load-and-baseline-characteristics-on-musculoskeletal-injury-and-pain-in-endurance-sport-populations-a-systematic-review
#19
REVIEW
R Johnston, R Cahalan, M O'Keeffe, K O'Sullivan, T Comyns
OBJECTIVES: To determine the associations between training load, baseline characteristics (e.g. age or previous injury) and rate of musculoskeletal injury and/or pain specifically within an Endurance Sporting Population (ESP). DESIGN: Prospectively registered systematic review. METHODS: Eight electronic databases were searched by two independent reviewers. Studies were required to prospectively monitor both (i) training loads and (ii) musculoskeletal injury and/or pain for >3 months...
March 14, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29551273/rating-of-perceived-exertion-is-a-stable-and-appropriate-measure-of-workload-in-judo
#20
Sally J Bromley, Michael K Drew, Andrew McIntosh, Scott Talpey
OBJECTIVES: Heart rate (HR), blood lactate concentration [La] and/or rating of perceived exertion (RPE) have been utilised to monitor judo training load in technical and randori (competition training) sessions, but are yet to be investigated in mixed sessions containing both elements. Therefore the purpose of this study was to: (1) determine the stability of these variables, and (2) to assess the efficacy of RPE as a load variable for mixed judo sessions. DESIGN: Cross-sectional study...
March 15, 2018: Journal of Science and Medicine in Sport
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