New aspects for match analysis to improve understanding of game scenario and training organization in top-level male water polo players

Melchiorri, G; Viero, Valerio; Bianchi, Daniele; Tancredi, Virginia; Bonifazi, Marco; Campagna, Alessandro; Triossi, Tamara

doi:10.23736/s0022-4707.21.12189-9

Cited by 6 publications

(9 citation statements)

References 8 publications

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“…On the contrary, in line with our previous statement that the goals conceded did not influence the match internal load, after matches lost with a higher number of conceded goals our players registered a higher score of perceived recovery. Although, this aspect might appear as a contradiction, a technical explanation of this fact is that a clear, unbalanced level between the two opponent teams (which could be related with a high number of goals conceded) leads to a lower frequency of consecutive actions, a higher number of breaks after a goal and consequently, a more frequent use of player substitutions [ 59 ]. In fact, in water polo, there are several occasions when a game is stopped, which allows coaches and players to modify their strategy and tactical behavior several times during the match [ 60 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Playing Position and Contextual Factors on Internal Match Loads, Post-Match Recovery and Well-Being Responses of Elite Male Water Polo Players

Perazzetti

Dopsaj

Sansone

et al. 2023

JFMK

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This study aimed to investigate the effects of playing position and contextual factors (match outcome, final score difference, match location, travel duration, number of scored and conceded goals) on the internal match load, players’ perceived recovery and players’ well-being. The session-RPE (s-RPE), Perceived Recovery Scale (PRS) and Hooper Index (HI) of 17 male elite water polo players were monitored during all matches (regular season and play-out) of the 2021/22 Italian Serie A1 championship. Three separate, mixed linear models for repeated measures showed significant main effects: drawn compared to won matches led to higher s-RPE values (mean ± SE = 277 ± 17.6 vs. 237.3 ± 20.6), while longer travel duration (estimate = −0.148) and goals scored (estimate = −3.598) led to lower s-RPE values; balanced compared to unbalanced matches led to higher PRS values (mean ± SE = 6.8 ± 0.3 vs. 5.1 ± 0.4), while playing time (estimate = −0.041) and goals scored (estimate = −0.180) led to lower PRS values; higher scores of the HI were registered for regular season compared to the play-out (mean ± SE = 15.6 ± 0.9 vs. 13.5 ± 0.8). This study marks the importance of ecological and non-invasive monitoring tools to assess internal match load, recovery and the well-being of elite water polo players.

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Section: Discussionmentioning

confidence: 99%

Effects of Playing Position and Contextual Factors on Internal Match Loads, Post-Match Recovery and Well-Being Responses of Elite Male Water Polo Players

Perazzetti

Dopsaj

Sansone

et al. 2023

JFMK

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“…Such a percentage is still lower compared to the presence of strength and conditioning specialists revealed in surveys from studies covering the period of 25 years in other team sports (Sutherland & Wiley, 1997;Weldon, Duncan, Turner, Lockie, & Loturco, 2021). The full-time employment of strength and conditioning coaches helps head coaches to better understand some physical aspects and plan weekly training strategies, as well as to better interpret data provided using time-motion analysis (Dopsaj & Matković, 1994;Melchiorri, et al, 2021;Platanou, 2004). Furthermore, the percentage (45%) of respondents indicating the presence of goalkeeper coaches in their teams was even lower than the percentage of the strength and conditioning ones.…”

Section: Discussionmentioning

confidence: 99%

Survey on coaching philosophies and training methodologies of water polo head coaches from three different european national schools

Perazzetti

Dopsaj

Nedeljković

et al. 2023

Kinesiology (Zagreb, Online)

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The ability to change swimming styles and body positions, involving continuous shifting from horizontal to vertical posture and performing jumps, as well as technical skills play a fundamental role in water polo performance. To face with these demands, the coaching staff of elite and sub-elite water polo clubs might adopt a variety of training methods, also based on their specific coaching philosophies. This point has led to an enlargement of the staff, with higher head coaches’ responsibilities, who may interpret their professional activity according to their own coaching philosophy, education, and their respective national water polo schools. In fact, based on their international sports achievements, some countries can be identified as recognised water polo national schools. For this reason, the purpose of this study was to survey 40 head coaches of three important national water polo schools (Italy, Greece, and Serbia) to identify and compare their coaching philosophies and training methodologies. The survey was based on five sections (Technical staff composition, Team roster, Weekly periodization, Testing and monitoring, Tactics and strategies). Furthermore, using a detailed descriptive statistic, the current study gives interesting information on how 40 high-ranking elite and sub-elite teams of different national championships organize their training during a typical week of the competitive season. A further improvement of this research line could include more national schools, expanding the sample to more countries from all over the world.

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“…This study included both men and women to promote model robustness in throwing motion classification in a novel data set (20). Men's and women's water polo players shoot and swim with different velocities (21,22,34)-potentially complicating noise filtration parameters from an IMU signal in movements with lower magnitudes such as swimming. Our study builds on the work of Croteau et al by including swimming and blocking.…”

Section: Discussionmentioning

confidence: 99%

“…There are a number of questions not addressed in the study, for example, swimming and blocking techniques as well as any differences between men and women athletes. In previous water polo studies with exclusive men and women cohorts, throwing velocities at ball release were distinct between men and women water polo athletes (21,22). Globally, research on women athletes is underrepresented, and women participants are poorly represented in sports research (23).…”

mentioning

confidence: 92%

A Dual Inertial Measurement Unit System for Classifying Standard Overhead Drill Movements in Elite Women’s Water Polo

King,

Lewis,

Watson

et al. 2023

Medicine &Amp; Science in Sports &Amp; Exercise

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Introduction Water polo upper limb external load monitoring cannot be currently measured accurately due to technological and methodological challenges. This is problematic as large fluctuations in overhead movement volume and intensity may affect performance and alter injury risk. Inertial measurement units (IMUs) and machine learning techniques have been shown to accurately classify overhead movements in other sports. We investigated the model accuracy and class precision, sensitivity and specificity of IMUs and machine learning techniques to classify standard overhead drill movements in elite women’s water polo. Methods Ten women’s water polo players performed standard drills of swimming, blocking, low and high intensity throwing under training conditions. Athletes wore two IMUs: one on the upper back and the other on the distal forearm. Each movement was videoed and coded to a standard overhead drill movement. IMU and coded video data were merged to verify the IMU detected activity classification of each movement to that of the video. Data were partitioned into a training and test set and used to form a decision tree algorithm. Model accuracy and class precision, sensitivity and specificity were assessed. Results IMU resultant acceleration and angular velocity values displayed drill specific values. 194 activities were identified by the model in the test set with 8 activities being incorrectly classified. Model accuracy was 95.88%. Percentage class precision, sensitivity and specificity were as follows: blocking (96.15, 86.21, 99.39), high intensity throwing (100, 100, 100), low intensity throwing (93.48, 93.48, 97.97) and swimming (94.81, 98.65, 96.67). Conclusions IMUs and machine learning techniques can accurately classify standard overhead drill movements in elite women’s water polo.

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New aspects for match analysis to improve understanding of game scenario and training organization in top-level male water polo players

Cited by 6 publications

References 8 publications

Effects of Playing Position and Contextual Factors on Internal Match Loads, Post-Match Recovery and Well-Being Responses of Elite Male Water Polo Players

Effects of Playing Position and Contextual Factors on Internal Match Loads, Post-Match Recovery and Well-Being Responses of Elite Male Water Polo Players

Survey on coaching philosophies and training methodologies of water polo head coaches from three different european national schools

A Dual Inertial Measurement Unit System for Classifying Standard Overhead Drill Movements in Elite Women’s Water Polo

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