Relationships between RPE-derived internal training load parameters and GPS-based external training load variables in elite young soccer players

Dios-Álvarez, Vicente de; Suárez-Iglesias, David; Bouzas-Rico, Sara; Alkain, Pello; González-Conde, Adrián; Ayán-Pérez, Carlos

doi:10.1080/15438627.2021.1937165

Cited by 11 publications

(8 citation statements)

References 51 publications

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“…The workload-RPE indicates that the internal load, which represents the physiological stress imposed on the athlete in response to the exercise stimulus, is positively related to the external load in sports modalities, such as running and swimming [ 26 ]. However, similar findings have not been observed in soccer [ 27 , 28 ], where the low or non-existent associations between internal load and top speed, sprint distance, and numbers of acceleration were low or non-existent [ 27 , 28 ]. In fact, our findings show only few significant correlations between GPS metrics and workload, suggesting that metrics alone do not provide a good indication of the physiological stress imposed on players.…”

Section: Discussionsupporting

confidence: 62%

Comparison among U-17, U-20, and Professional Female Soccer in the GPS Profiles during Brazilian Championships

Kobal

Carvalho

Jacob

et al. 2022

IJERPH

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The purpose of this study was to compare and characterize the physical demand of official matches among under-17 (U-17), under-20 (U-20), and professional (Pro) female soccer players. All matches were from the U-17, U-20, and Pro National Brazilian Championships. Fourteen Pro matches, nine U-20 matches, and four U-17 matches were analyzed. The external load was measured by the global positioning system (GPS) and the internal workload was assessed by the ratings of perceived exertion (RPE) multiplied by the duration of the match. The activity profiles measured were total distance covered (km), total sprint distance (m) (speed > 18 km·h−1), number of accelerations and decelerations (between 1 and 2 m·s−2 and >3 m·s−2), and top speed (km·h−1). For the analysis, we standardized all the metrics (except the top speed) by the time (in minutes) played. The Pro group presented higher sprint distances, number of accelerations and decelerations, and top speeds, compared to U-20 and U-17. There was no difference in the total distance among groups, and there was no difference in any GPS metrics between U-20 and U-17. The RPE was higher in Pro and U-17, compared to U-20; however, the workload-RPE was higher in Pro, compared to both U-17 and U-20 groups. These findings provide important information for the evolution of physical performance according to age categories in elite female soccer players.

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Section: Discussionsupporting

confidence: 62%

Comparison among U-17, U-20, and Professional Female Soccer in the GPS Profiles during Brazilian Championships

Kobal

Carvalho

Jacob

et al. 2022

IJERPH

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“…Another study with professional soccer players also found a relationship between session-RPE (s-RPE) and total distance and between s-RPE and distances covered at > 19.8 km/h 24 . Such findings were also confirmed in young soccer players 25 .…”

Section: Introductionsupporting

confidence: 65%

“…The relationship between internal and external load measures have been analyzed in previous studies 23 – 25 although without considering TM and TS indexes. Specifically, a study with professional soccer players showed that rating perceived exertion (RPE) correlate with distances covered between 14.4 and 19.8 and between 19.9 and 25.1 km/h 23 .…”

Section: Introductionmentioning

confidence: 99%

Seasonal variations of the relationships between measures of training monotony and strain in professional soccer players

Nobari

Martins

Oliveira

et al. 2022

Sci Rep

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The purposes of this study were (a) to determine the variations in internal and external measures of training monotony (TM) and strain (TS) in professional soccer players according to periods of the season and playing positions, and (b) to analyze the relationships between internal and external measures of TM and TS. Twenty male professional players (age = 29.4 ± 4.4 years) were followed for 20 weeks through session rating of perceived exertion (s-RPE), total distance (TD), high-speed running distance (HSRD) and sprint distance (SpD). Regardless of measure, highest mean TM and TS scores were observed in mid-season and end-season. In general, wingers and strikers tended to have greater values in TM. Midfielders exhibited greater TS of TD and SpD. Correlation results for TM revealed that s-RPE was positively associated with SpD in early-season (r = 0.608) and negatively associated in mid-season (r = − 0.506). Regarding the TS, result demonstrated that s-RPE is negatively associated with HSRD in early-season (r = − 0.464) and positively associated in mid-season (r = 0.476). In general, there different meanings in correlations between internal and external measures across the season. On the one hand, our findings highlighted that TM and TS of professional soccer players is sensitive to period of the season and player’s position, but on other hand, correlation analyses proved that changes in one external/internal measure does not cause changes in another external/internal measure which support the constant monitoring of these values across the season.

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“…The eligibility for training data was based on previous studies in sub-elite youth football [ 10 , 11 ] considering the following inclusion criteria: (a) young football players aged between 13 and 20 years old [ 1 ]; (b) at least five years of competitive experience in football [ 21 ]; (c) training files containing at least 35 consecutive minutes of playing time on the pitch [ 25 ]; (d) training data considered a competitive one-game per week schedule and complete full training sessions three times a week (~90 min) [ 10 , 11 ]. The exclusion criteria were: (a) total or partial absence from training due to data collection errors, injury events, rehabilitation sessions, individual training sessions, early withdrawal, and/or missing training; (b) football players aged under 13 or over 20 years; (c) the goalkeeper participated in the training session but was excluded from the analysis [ 1 ].…”

Section: Methodsmentioning

confidence: 99%

Weekly Training Load across a Standard Microcycle in a Sub-Elite Youth Football Academy: A Comparison between Starters and Non-Starters

Teixeira

Branquinho²,

Ferraz

et al. 2022

IJERPH

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Compensatory training sessions have been highlighted as useful strategies to solve the differential weekly training load between the players’ starting status. However, the influence of the players’ starting status is still understudied in sub-elite youth football. Thus, the aim of this study was to compare the weekly training load on a standard microcycle in starters and non-starters of a sub-elite youth football academy. The weekly training load of 60 young sub-elite football players was monitored during a 6-week period using an 18 Hz global positioning system (GPS), 1 Hz telemetry heart rate, rating of perceived exertion (RPE), and total quality recovery (TQR). The total distance (TD) covered presented a significant difference between starters and non-starters with a moderate effect ( t = −2.38, Δ = −428.03 m, p = 0.018, d = 0.26). Training volume was higher in non-starters than in starter players (TD Starters = 5105.53 ± 1684.22 vs. TD Non-starters = 5533.56 ± 1549.26 m). Significant interactive effects were found between a player’s starting status, playing time, and session duration in overall training load variables for within (F = 140.46; η 2 = 0.85; p < 0.001) and between-subjects (F = 11.63 to 160.70; η 2 = 0.05 to 0.76; p < 0.001). The player’s starting status seems to only influence the training volume in sub-elite youth football, unless one considers the covariance of the playing time and session duration. Consequently, coaches should prioritize complementary training to equalize training volume and emphasize similar practice opportunities for non-starters. Future studies should evaluate the gap between training and match load, measuring the impact of recovery and compensatory sessions.

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Relationships between RPE-derived internal training load parameters and GPS-based external training load variables in elite young soccer players

Cited by 11 publications

References 51 publications

Comparison among U-17, U-20, and Professional Female Soccer in the GPS Profiles during Brazilian Championships

Comparison among U-17, U-20, and Professional Female Soccer in the GPS Profiles during Brazilian Championships

Seasonal variations of the relationships between measures of training monotony and strain in professional soccer players

Weekly Training Load across a Standard Microcycle in a Sub-Elite Youth Football Academy: A Comparison between Starters and Non-Starters

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