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🤖 Estimating Perceived Exertion with Machine Learning
Soccer Physical Demands Explored
Haresh Suppiah
November 18, 2024 • Estimated Reading Time: 5 minutes
Welcome, science enthusiasts.
In today’s edition:
The Influence of Playing Position on Physical, Physiological, and Technical Demands in Adult Male Soccer Matches
Feature importance for estimating rating of perceived exertion from cardiorespiratory signals
Backyard running and enhancing human performance
Understanding running injuries in youth and adults
The role of athletes in sports research
and several more…
FEATURED ARTICLES 🌭
Key finding:
Respiratory features, especially minute ventilation, are crucial for accurately estimating perceived exertion in exercise through machine learning.
How they did it:
Methodology: The study included 20 participants who carried out Yo-Yo level-1 tests while wearing devices to track heart and respiratory data, along with collecting ratings of perceived exertion (RPE).
Results: The random forest regression model exhibited the highest accuracy, achieving a root mean square error of 1.849 and a mean absolute error of 1.461 across participants.
Innovation: The study highlighted the importance of incorporating respiratory features, particularly minute ventilation, alongside heart rate for more accurate RPE estimation using machine learning.
Correlation: Minute ventilation was consistently identified as the most critical feature for estimating RPE, surpassing the significance of heart rate across all tested models.
Why it matters:
For sport practitioners, this study underscores the importance of monitoring not just heart rate, but also breathing metrics like minute ventilation when assessing an athlete’s perceived exertion; integrating these insights can lead to more effective training regimens, enhanced performance tracking, and a significant reduction in the risk of fatigue-related injuries.
Key finding:
Soccer players’ positional roles significantly influence their physical, physiological, and technical demands during matches.
How they did it:
Methodology: A systematic review analyzed 178 studies focusing on physical, physiological, and technical demands on soccer players by playing position.
Results: Central and external midfielders, as well as external defenders, covered significantly greater total and high-speed distances compared to forwards and central defenders.
Findings: External midfielders had the highest sprint distances, while defenders and central midfielders performed more passes than external midfielders and forwards.
Application: The results suggest that individualized training practices should be developed based on specific positional demands to enhance player performance.
Why it matters:
Understanding the unique physical demands associated with different soccer positions enables coaches to tailor training regimens that enhance player performance and mitigate injury risks, ensuring athletes are as sharp as their best moves on the field. By embracing position-specific training practices, practitioners can maximize each player’s strengths while addressing the tactical requirements critical for match success—because no one benefits from a ‘one-size-fits-all’ approach.
QUICK BITES 🍤
Biomechanics
-Fatigue from repeated jumps decreases knee and ankle power, shifting mechanical load to the upper body for performance maintenance.
-Stroboscopic goggles enhance balance training effectiveness by varying with task difficulty during standing exercises.
Injury
-Adolescent runners have different perceptions of injury risk factors compared to adults, highlighting the need for targeted educational resources.
-Starting pitchers with more than 5 rest days between starts have fewer musculoskeletal injuries than those with less.
Physical Education and Pedagogy
-Physical education teachers often struggle to define ability, leaning towards narrow, performance-focused views in their practices.
Sport Engineering
-Inclusive sports engineering research should consider diverse demographics to enhance safety and performance for all participants.
Sport Physiology
-Backyard ultrarunning affects cognitive speed and reveals different levels of physiological resilience among athletes.
Talent Identification and Development
-Engaging elite athletes in research requires collaborative strategies with gatekeepers and convenient access during training and competitions.
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Curated by Haresh Suppiah