Session Rating of Perceived Exertion (sRPE) Load and Training Impulse Are Strongly Correlated to GPS-Derived Measures of External Load in NCAA Division I Women’s Soccer Athletes

Askow, Andrew T.; Lobato, Alexa L.; Arndts, Daniel J.; Jennings, Will; Kreutzer, Andreas; Erickson, Jacob L.; Esposito, Phil; Oliver, Jonathan M.; Foster, Carl; Jagim, Andrew R.

doi:10.3390/jfmk6040090

Cited by 10 publications

(9 citation statements)

References 31 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: 60%

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: 60%

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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“…Each system produces various metrics and parameters used to characterize movement demands such as total distance, high speed running, movement velocity, acceleration, inertial movement units, and number of sprints. Previous work has reported strong relationships between internal and external measures of workload in various sports [ 6 , 7 , 8 , 9 ]. Certain systems even calculate proprietary metrics to further characterize internal and external workload demands incurred by athletes, some of which are summated throughout a session and reflect both volume and intensity of work (i.e., training load by Polar and player load by Catapult).…”

Section: Introductionmentioning

confidence: 99%

Seasonal Accumulated Workloads in Collegiate Women’s Soccer: A Comparison of Starters and Reserves

Jagim

Askow

Carvalho

et al. 2022

JFMK

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Research quantifying the unique workload demands of starters and reserves in training and match settings throughout a season in collegiate soccer is limited. Purpose: The purpose of the current study is to compare accumulated workloads between starters and reserves in collegiate soccer. Methods: Twenty-two NCAA Division III female soccer athletes (height: 1.67 ± 0.05 m; body mass: 65.42 ± 6.33 kg; fat-free mass: 48.99 ± 3.81 kg; body fat %: 25.22 ± 4.78%) were equipped with wearable global positioning systems with on-board inertial sensors, which assessed a proprietary training load metric and distance covered for each practice and 22 matches throughout an entire season. Nine players were classified as starters (S), defined as those playing >50% of playing time throughout the entire season. The remaining 17 were reserves (R). Goalkeepers were excluded. A one-way ANOVA was used to determine the extent of differences in accumulated training load throughout the season by player status. Results: Accumulated training load and total distance covered for starters were greater than reserves ((S: 9431 ± 1471 vs. R: 6310 ± 2263 AU; p < 0.001) and (S: 401.7 ± 31.9 vs. R: 272.9 ± 51.4 km; p < 0.001), respectively) throughout the season. Conclusions: Starters covered a much greater distance throughout the season, resulting in almost double the training load compared to reserves. It is unknown if the high workloads experienced by starters or the low workloads of the reserves is more problematic. Managing player workloads in soccer may require attention to address potential imbalances that emerge between starters and reserves throughout a season.

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“…This parameter is a simple, non-invasive and inexpensive method for monitoring training load [ 34 ]. Furthermore, it is considered valid and reliable for female field-based sports, including football [ 34 , 35 ]. The individual training RPE of each training session or match was obtained ~30 min after the completion of the session to ensure that each player reported a global RPE for the entire session rather than the most recent exercise [ 33 , 36 ].…”

Section: Methodsmentioning

confidence: 99%

Nutritional Intake and Training Load of Professional Female Football Players during a Mid-Season Microcycle

et al. 2022

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Football (soccer) is a high-intensity intermittent sport with large energy demands. In a repeated-measures design, we analysed the nutritional intake and training load of fourteen female football players (22.50 ± 4.38 y; 57.23 ± 8.61 kg; 164 ± 6.00 cm; 18.33 ± 2.48% of fat mass and 23.71 ± 2.51 kg of muscle mass) competing in the highest female Football Portuguese League across a typical mid-season microcycle. The microcycle had one match day (MD), one recovery session (two days after the MD, MD+2), three training sessions (MD-3, MD-2, MD-1) and two rest days (MD+1). Energy intake and CHO (g.kg.BW−1) intake were lower on the days before the competition (MD+2, MD-3, MD-2 and MD-1 vs. MD; p < 0.05; ES: 0.60–1.30). Total distance, distance covered at high-speed running (HSRD) and the high metabolic distance load (HMLD) were lower on MD+2, MD-3 and MD-1 compared with MD (p < 0.05; ES: <0.2–5.70). The internal training load was lower in all training sessions before the competition (MD+2, MD-3, MD-2 and MD-1 vs. MD; p ≤ 0.01; ES: 1.28–5.47). Despite the small sample size and a single assessment in time, the results suggest that caloric and CHO intake were below the recommendations and were not structured based on the physical requirements for training sessions or match days.

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Session Rating of Perceived Exertion (sRPE) Load and Training Impulse Are Strongly Correlated to GPS-Derived Measures of External Load in NCAA Division I Women’s Soccer Athletes

Cited by 10 publications

References 31 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 Accumulated Workloads in Collegiate Women’s Soccer: A Comparison of Starters and Reserves

Nutritional Intake and Training Load of Professional Female Football Players during a Mid-Season Microcycle

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