scholarly journals Strength and Conditioning Coaches’ Application of the Session Rating of Perceived Exertion Method of Monitoring Within Professional Rugby Union

2018 ◽  
Vol 61 (1) ◽  
pp. 155-166 ◽  
Author(s):  
Thomas Comyns ◽  
Aoife Hannon
Keyword(s):  
Online Survey ◽  
Perceived Exertion ◽  
Load Ratio ◽  
Rugby Union ◽  
Rating Of Perceived Exertion ◽  
Strength And Conditioning ◽  
Monitoring Method ◽  
Risk Of Injury ◽  
Potential Applications ◽  
Research Findings

Abstract 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. The survey was piloted with expert researchers and practitioners in the area of session-RPE prior to distribution and alterations were made to the survey based on the experts’ feedback. Twenty S&C coaches working with professional rugby union clubs in Ireland, England, Scotland and Wales completed the survey. The coaches’ responses indicated that the majority found the session-RPE to be a valid and effective monitoring method. While some good implementation practices were identified, not all of the coaches adhered to these guidelines which may impact on the accuracy of the collected data. For example, 30% of coaches do not collect the RPE for every session that a player does per week limiting the use of the session-RPE variables cumulative training load, training monotony, training strain and acute:chronic load ratio. S&C coaches within rugby should consider using session-RPE as a method of monitoring and implement the method in a manner reflective of research findings to enhance the potential applications of this system in maximising adaptations and minimising the risk of injury.

scholarly journals Protection Against Spikes in Workload With Aerobic Fitness and Playing Experience: The Role of the Acute:Chronic Workload Ratio on Injury Risk in Elite Gaelic Football

2017 ◽  
Vol 12 (3) ◽  
pp. 393-401 ◽  
Author(s):  
Shane Malone ◽  
Mark Roe ◽  
Dominic A. Doran ◽  
Tim J. Gabbett ◽  
Kieran D. Collins
Keyword(s):  
Aerobic Fitness ◽  
Injury Risk ◽  
Perceived Exertion ◽  
Reference Group ◽  
Time Trial ◽  
Rating Of Perceived Exertion ◽  
Football Players ◽  
Risk Of Injury ◽  
Increased Risk ◽  
Injury Protection

Purpose:To examine the association between combined session rating of perceived exertion (RPE) workload measures and injury risk in elite Gaelic footballers.Methods:Thirty-seven elite Gaelic footballers (mean ± SD age 24.2 ± 2.9 y) from 1 elite squad were involved in a single-season study. Weekly workload (session RPE multiplied by duration) and all time-loss injuries (including subsequent-wk injuries) were recorded during the period. Rolling weekly sums and wk-to-wk changes in workload were measured, enabling the calculation of the acute:chronic workload ratio by dividing acute workload (ie, 1-weekly workload) by chronic workload (ie, rolling-average 4-weekly workload). Workload measures were then modeled against data for all injuries sustained using a logistic-regression model. Odds ratios (ORs) were reported against a reference group.Results:High 1-weekly workloads (≥2770 arbitrary units [AU], OR = 1.63–6.75) were associated with significantly higher risk of injury than in a low-training-load reference group (<1250 AU). When exposed to spikes in workload (acute:chronic workload ratio >1.5), players with 1 y experience had a higher risk of injury (OR = 2.22) and players with 2–3 (OR = 0.20) and 4–6 y (OR = 0.24) of experience had a lower risk of injury. Players with poorer aerobic fitness (estimated from a 1-km time trial) had a higher injury risk than those with higher aerobic fitness (OR = 1.50–2.50). An acute:chronic workload ratio of (≥2.0) demonstrated the greatest risk of injury.Conclusions:These findings highlight an increased risk of injury for elite Gaelic football players with high (>2.0) acute:chronic workload ratios and high weekly workloads. A high aerobic capacity and playing experience appears to offer injury protection against rapid changes in workload and high acute:chronic workload ratios. Moderate workloads, coupled with moderate to high changes in the acute:chronic workload ratio, appear to be protective for Gaelic football players.

A Prospective Cohort Study of Load and Wellness (Sleep, Fatigue, Soreness, Stress, and Mood) in Elite Junior Australian Football Players

2019 ◽  
Vol 14 (6) ◽  
pp. 829-840 ◽  
Author(s):  
Timothy J.H. Lathlean ◽  
Paul B. Gastin ◽  
Stuart V. Newstead ◽  
Caroline F. Finch
Keyword(s):  
Cohort Study ◽  
Confidence Interval ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Perceived Exertion ◽  
Training Session ◽  
Load Ratio ◽  
Rating Of Perceived Exertion ◽  
Football Players ◽  
Australian Football

Purpose:To investigate associations between load (training and competition) and wellness in elite junior Australian Football players across 1 competitive season.Methods:A prospective cohort study was conducted during the 2014 playing season in 562 players from 9 teams. Players recorded their training and match intensities according to the session-rating-of-perceived-exertion (sRPE) method. Based on sRPE player loads, a number of load variables were quantified, including cumulative load and the change in load across different periods of time (including the acute-to-chronic load ratio). Wellness was quantified using a wellness index including sleep, fatigue, soreness, stress, and mood on a Likert scale from 1 to 5.Results:Players spent an average of 85 (21) min in each match and 65 (31) min per training session. Average match loads were 637 (232) arbitrary units, and average training loads were 352 (233) arbitrary units. Over the 24 wk of the 2014 season, overall wellness had a significant linear negative association with 1-wk load (B = −0.152; 95% confidence interval, −0.261 to −0.043;P = .006) and an inverseU-curve relationship with session load (B = −0.078; 95% confidence interval, 0.143 to 0.014;P = .018). Mood, stress, and soreness were all found to have associations with load.Conclusions:This study demonstrates that load (within a session and across the week) is important in managing the wellness of elite junior Australian Football players. Quantifying loads and wellness at this level will help optimize player management and has the potential to reduce the risk of adverse events such as injury.

scholarly journals We know they train, but what do they do? Implications for coaches working with adolescent rugby union players

2017 ◽  
Vol 12 (2) ◽  
pp. 175-182 ◽  
Author(s):  
Padraic J Phibbs ◽  
Ben Jones ◽  
Gregory AB Roe ◽  
Dale B Read ◽  
Joshua Darrall-Jones ◽  
...  
Keyword(s):  
Heart Rate ◽  
High Speed ◽  
Injury Risk ◽  
Perceived Exertion ◽  
Rugby Union ◽  
Rating Of Perceived Exertion ◽  
Limited Information ◽  
Positioning Systems ◽  
Global Positioning ◽  
School Club

Limited information is available regarding the training loads of adolescent rugby union players. One-hundred and seventy male players (age 16.1 ± 1.0 years) were recruited from 10 teams representing two age categories (under-16 and under-18) and three playing standards (school, club and academy). Global positioning systems, accelerometers, heart rate and session-rating of perceived exertion (s-RPE) methods were used to quantify mean session training loads. Session demands differed between age categories and playing standards. Under-18 academy players were exposed to the highest session training loads in terms of s-RPE (236 ± 42 AU), total distance (4176 ± 433 m), high speed running (1270 ± 288 m) and PlayerLoad™ (424 ± 56 AU). Schools players had the lowest session training loads in both respective age categories. Training loads and intensities increased with age and playing standard. Individual monitoring of training load is key to enable coaches to maximise player development and minimise injury risk.

scholarly journals Cuantificación de la carga de entrenamiento y competición: análisis comparativo por posiciones en un equipo de la Liga Española de Baloncesto Oro (Quantification of training and competition load: comparative analysis by position in a Spanish Golden Baske

Retos ◽  
2021 ◽  
Vol 42 ◽  
pp. 882-890
Author(s):  
José Antonio Blázquez López ◽  
Salvador García Martínez ◽  
Alberto Ferriz Valero ◽  
Javier Olaya Cuartero
Keyword(s):  
Perceived Exertion ◽  
Team Sport ◽  
Rating Of Perceived Exertion ◽  
Monitoring And Control ◽  
Total Load ◽  
Study Objective ◽  
Professional Basketball ◽  
Risk Of Injury ◽  
And Control ◽  
And Training

  El objetivo principal de este trabajo es cuantificar y analizar la carga de entrenamiento y competición de los jugadores de un equipo profesional de baloncesto de la categoría LEB Oro. Durante el estudio se han llevado a cabo procesos de análisis de carga objetiva y subjetiva mediante cuestionarios diarios de escalas de esfuerzo percibido (RPE) y control de minutos totales de entrenamiento y competición, obteniendo variables de carga media, semanal y total, índices de monotonía y fatiga y ratio de carga aguda-crónica. Se cuantificó la carga de entrenamiento y competición de 10 jugadores de un mismo equipo profesional (edad = 27.2 ± 5.3 años; altura = 196.4 ± 8.7 cm; peso = 91.1 ± 12.3 kg) diferenciando entre bases, exteriores (escoltas y aleros) e interiores (ala-pívots y pívots) durante 21 semanas de entrenamiento. Los resultados principales del presente estudio mostraron mayor percepción de la carga para la posición de los bases en comparación con los interiores y exteriores. La mayoría de los jugadores de la plantilla se mantuvieron durante toda la primera vuelta en un estado de forma óptimo o sweet point, lo que supone una disminución del estado de fatiga y riesgo de lesión, debido a este seguimiento y control de la carga. Este estudio servirá a entrenadores y preparadores físicos a la hora de elegir diferentes herramientas para realizar una correcta cuantificación e interpretación de la carga de entrenamiento en un deporte de equipo como el baloncesto. Abstract. The main purpose of this study was to quantify and analyze the training and competition load of the players of a professional basketball team in “LEB Oro” category. During the study, objective and subjective load analysis processes have been carried out through daily Rating of Perceived Exertion (RPE) questionnaires and control of total training and competition minutes, getting variables of average, weekly and total load, training monotony and training fatigue indexes and acute: chronic workload ratio. The training and competition load of 10 players from the same professional team (age = 27.2 ± 5.3 years; height = 196.4 ± 8.7 cm; weight = 91.1 ± 12.3 kg) was quantified by differentiating point guards, perimeter players (shooting guards and forwards) and inside players (center and power forward) during 21 weeks of training. The main results of the present study showed a greater perception of the load for the position of the point guards in comparison with the inside players and perimeter players. Most of the players in the squad were kept in an optimal or sweet point state throughout the first part of the season, which means a decrease in the fatigue and risk of injury due to this monitoring and control of the load. This study will be useful for coaches and physical trainers when choosing different tools to carry out a correct quantification and interpretation of the training load in a team sport such as basketball.

scholarly journals Strength and conditioning practices of high school rugby coaches: A South African context

2019 ◽  
Vol 115 (9/10) ◽  
Author(s):  
Bradley Robinson ◽  
Lee Pote ◽  
Candice Christie
Keyword(s):  
South Africa ◽  
High School ◽  
Public Schools ◽  
South African ◽  
Online Survey ◽  
Rugby Union ◽  
Weight Lifting ◽  
School Level ◽  
High School Level ◽  
Strength And Conditioning

Although rugby union as a sport is well established, the strength and conditioning practices of high school level players are not well known. Therefore, the main purpose of this study was to examine the current strength and conditioning practices that coaches implement at South African high school level rugby. A secondary purpose was to compare practices between high schools of different socio-economic status in South Africa. An online survey or in person interview (depending on the school) was conducted and 43 responses were received: from 28 coaches at schools among the top 100 rugby schools in South Africa for 2016 and from 15 coaches at no-fee public schools in the Eastern Cape Province of South Africa. Most coaches (72%) performed some form of physical testing, with the most common parameter tested being ‘speed’. The most common strength and conditioning practices utilised included flexibility (stretching), speed (free sprinting), agility (cone drills), plyometric (box drills) and resistance (weight lifting) training. Unlike the no-fee schools, the top 100 rugby schools implemented conditioning practices similar to best-known international practices. Furthermore, no-fee school coaches did not have the qualifications necessary to administer the correct training techniques. Education and upskilling on the best strength and conditioning practices for school level coaches need to be improved, particularly in less privileged schools. Such improvement is crucial to the transformation goals set out by the South African Rugby Union, which would benefit from player development in lower socio-economic schools.

scholarly journals Monitoring What Matters: A Systematic Process for Selecting Training-Load Measures

2017 ◽  
Vol 12 (s2) ◽  
pp. S2-101-S2-106 ◽  
Author(s):  
Sean Williams ◽  
Grant Trewartha ◽  
Matthew J. Cross ◽  
Simon P.T. Kemp ◽  
Keith A. Stokes
Keyword(s):  
Injury Risk ◽  
Perceived Exertion ◽  
Principal Component ◽  
Rugby Union ◽  
Training Load ◽  
Rating Of Perceived Exertion ◽  
Systematic Process ◽  
Daily Training ◽  
Monitoring Training ◽  
Generalized Linear Mixed Effects

Purpose:Numerous derivative measures can be calculated from the simple session rating of perceived exertion (sRPE), a tool for monitoring training loads (eg, acute:chronic workload and cumulative loads). The challenge from a practitioner’s perspective is to decide which measures to calculate and monitor in athletes for injury-prevention purposes. The aim of the current study was to outline a systematic process of data reduction and variable selection for such training-load measures.Methods:Training loads were collected from 173 professional rugby union players during the 2013–14 English Premiership season, using the sRPE method, with injuries reported via an established surveillance system. Ten derivative measures of sRPE training load were identified from existing literature and subjected to principal-component analysis. A representative measure from each component was selected by identifying the variable that explained the largest amount of variance in injury risk from univariate generalized linear mixed-effects models.Results:Three principal components were extracted, explaining 57%, 24%, and 9% of the variance. The training-load measures that were highly loaded on component 1 represented measures of the cumulative load placed on players, component 2 was associated with measures of changes in load, and component 3 represented a measure of acute load. Four-week cumulative load, acute:chronic workload, and daily training load were selected as the representative measures for each component.Conclusions:The process outlined in the current study enables practitioners to monitor the most parsimonious set of variables while still retaining the variation and distinct aspects of “load” in the data.

scholarly journals A simulated rugby match protocol induces physiological fatigue without decreased individual scrummaging performance

2017 ◽  
Vol 29 (1) ◽  
pp. 1-6 ◽  
Author(s):  
A Green ◽  
S Kerr ◽  
B Olivier ◽  
R Meiring ◽  
C Dafkin ◽  
...  
Keyword(s):  
Heart Rate ◽  
Perceived Exertion ◽  
Kinase Activity ◽  
Rugby Union ◽  
Creatine Kinase Activity ◽  
Rating Of Perceived Exertion ◽  
Subjective Ratings ◽  
Borg Scale ◽  
Simulated Game ◽  
Physiological Markers

Background: A rugby union game consists of 80 minutes of strenuous exertion. Forwards are required to participate in the arduous activity of scrummaging throughout a game.Objectives: The purpose of this study was to identify whether rugby-match simulated fatigue modified individual scrummaging technique and reduced performance.Methods: Twelve forwards (body mass 106.2±13.3 kg; stature 179.5±8.4 cm) had individual scrum kinetics and kinematics assessed prior to and following a protocol that simulated a rugby match. The simulated rugby match protocol required participants to run at various velocities and perform rugby specific tasks. Rating of Perceived Exertion (RPE) was assessed using a 6-20 Borg scale and Visual Analogue Scale (VAS). Blood lactate, heart rate and RPE were measured prior to, at mid-point and after the simulated game, while markers of muscle damage (blood creatine kinase activity (CK) and urea) were measured prior to and following the protocol.Results: RPE (p<0.0001) and VAS (p<0.0001) showed significant increases between the pre- and post-simulation values. Of the physiological markers, heart rate (p<0.0001) and blood urea concentration (p=0.004) increased following the match simulation. No significant differences were observed for blood CK (p=0.281), individual scrummaging forces (p=0.433) or in the kinematic variables following the protocol. While physiological fatigue and subjective ratings of physiological fatigue may develop during a rugby simulation, no differences were observed in peak forces or in body kinematics at peak force.Conclusion: Physiological fatigue does not influence individual scrummaging performance and technique.

Determining the Relationship Between Internal Load Markers and Noncontact Injuries in Young Elite Soccer Players

2019 ◽  
Vol 14 (4) ◽  
pp. 421-425 ◽  
Author(s):  
Javier Raya-González ◽  
Fabio Yuzo Nakamura ◽  
Daniel Castillo ◽  
Javier Yanci ◽  
Maurizio Fanchini
Keyword(s):  
Confidence Interval ◽  
Odds Ratio ◽  
Perceived Exertion ◽  
Area Under The Curve ◽  
Predictive Ability ◽  
Load Ratio ◽  
Rating Of Perceived Exertion ◽  
Soccer Players ◽  
Internal Load ◽  
Injury Occurrence

Purpose: To examine the association and predictive ability of internal load markers with regard to noncontact injuries in young elite soccer players. Methods: Twenty-two soccer players (18.6 [0.6] y) who competed in the Spanish U19 League participated in the study. During a full season, noncontact injuries were recorded and, using session rating of perceived exertion, internal weekly load (sum of load of all training sessions and matches for each week) and acute:chronic workload ratio (typically, acute = current week and chronic = rolling 4-wk average) were calculated. A generalized estimating equation analysis was used to examine the association of weekly and acute:chronic load-ratio markers with a noncontact injury in the subsequent week. Load variables were also analyzed for predictive ability with receiver operating characteristic curve and area under the curve. Results: No association was found for weekly load (odds ratio = 1.00; 90% confidence interval, 0.99–1.00) and acute:chronic load ratio (odds ratio = 0.16; 90% confidence interval, 0.01–1.84) with respect to injury occurrence. In addition, the analyzed load markers showed poor ability to predict injury occurrence (area under the curve < .50). Conclusions: The results of this study suggest that internal load markers are not associated with noncontact injuries in young soccer players and present poor predictive capacity with regard to the latter.

Absolute and Relative Load and Injury in Elite Junior Australian Football Players Over 1 Season

2020 ◽  
Vol 15 (4) ◽  
pp. 511-519 ◽  
Author(s):  
Timothy J.H. Lathlean ◽  
Paul B. Gastin ◽  
Stuart V. Newstead ◽  
Caroline F. Finch
Keyword(s):  
Injury Risk ◽  
Perceived Exertion ◽  
Fold Increase ◽  
Estimating Equation ◽  
Rating Of Perceived Exertion ◽  
Football Players ◽  
Injury Surveillance System ◽  
Relative Load ◽  
Risk Of Injury ◽  
Australian Football

Purpose: To investigate the association between training and match loads and injury in elite junior Australian football players over 1 competitive season. Methods: Elite junior Australian football players (n = 290, age 17.7 [0.3] y, range 16–18 y) were recruited from the under-18 state league competition in Victoria to report load and injury information. One-week load (session rating of perceived exertion multiplied by duration) and all time-loss injuries were reported using an online sport-injury surveillance system. Absolute load measures (weekly sums) enabled the calculation of relative measures such as the acute:chronic workload ratio. Load measures were modeled against injury outcome (yes/no) using a generalized estimating equation approach, with a 1-wk lag for injury. Results: Low (<300 arbitrary units [au]) and high (>4650 au) 1-wk loads were associated with significantly higher risk of injury. Furthermore, low (<100 au) and high (>850 au) session loads were associated with a higher risk of injury. High strain values (>13,000) were associated with up to a 5-fold increase in the odds of injury. There was a relatively flat-line association between the acute:chronic workload ratio and injury. Conclusions: This study is the first investigation of elite junior athletes demonstrating linear and nonlinear relationships between absolute and relative load measures and injury. Coaches should focus player loads on, or at least close to, the point at which injury risk starts to increase again (2214 au for 1-wk load and 458 au for session load) and use evidence-based strategies across the week and month to help reduce the risk of injury.

scholarly journals Contemporary practices of strength and conditioning coaches in professional cricket

2020 ◽  
pp. 174795412097747
Author(s):  
Anthony Weldon ◽  
Michael J Duncan ◽  
Anthony Turner ◽  
Candice J Christie ◽  
Cecilia MC Pang
Keyword(s):  
Technology Use ◽  
Online Survey ◽  
Perceived Exertion ◽  
Background Information ◽  
Strength Development ◽  
Strength And Conditioning ◽  
Related Field ◽  
Sports Science ◽  
Training Exercises ◽  
Sports Coaches

This study describes the contemporary practices of strength and conditioning (S&C) coaches in male professional cricket. Thirty-three S&C coaches working with international and professional club teams across seven countries completed an online survey. The survey consisted of 45 questions (35 fixed responses and 10 open-ended), with eight sections: (a) background information, (b) muscular strength and power development, (c) speed development, (d) plyometrics, (e) flexibility development, (f) physical testing, (g) technology use, and (h) programing. Most S&C coaches were educated to degree level (97%) or higher, with 91% of degrees being in a sports science-related field. Furthermore, 73% held S&C and 40% cricket coaching certifications. Isometric type resistance training exercises (94%) were frequently programed by S&C coaches, with squats and deadlifts (including variations) deemed the most important strength development exercises. Ratings of perceived exertion (58%) was most used for determining set loads. Hang clean (64%) and multiple hops/lunges (85%) were the most prescribed Olympic weightlifting and plyometric exercises. Speed gates (85%) were the most used technology-based equipment. Open-ended questions revealed, 45% of S&C coaches believed time constraints, scheduling and fixtures are the main issues faced in their role. Position-specific demands (61%) was the predominant method used for individualizing players training strategies. The information presented in this study is valuable for those pursuing or currently working as an S&C coach in professional cricket to align, compare, and explain their practices. Furthermore, will provide insight for the wider athlete support team (e.g., sports coaches and physiotherapists) on the practices of S&C coaches.

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