External Measures in Training and Performance Evaluation
16 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does the player load measure primarily reflect?

  • Acceleration data over time (correct)
  • The velocity of the athlete alone
  • The number of steps taken during an activity
  • Total distance traveled by the athlete

What relationship is seen between player load and GPS distance in soccer?

  • Player load increases during rest periods
  • They are generally uncorrelated
  • They are highly correlated during gameplay (correct)
  • Player load decreases as distance increases

How does cutting during gameplay affect velocity measurements?

  • It improves velocity accuracy
  • It directly correlates with increased player load
  • It has no effect on velocity measurements
  • It distorts the velocity readings significantly (correct)

What is indicated by the demarcation between walking speeds and higher speeds?

<p>The transition from walking to running (D)</p> Signup and view all the answers

What happens to the player load during vertical jumping with no horizontal movement?

<p>Player load is high despite no forward motion (B)</p> Signup and view all the answers

What does the line of best fit in the player load data indicate?

<p>A strong relationship between velocity and player load (B)</p> Signup and view all the answers

Why is the dataset described as cleaner for the single athlete focused on running?

<p>It focuses purely on running without interruptions (D)</p> Signup and view all the answers

Why might player load values appear similar to walking when experiencing unusual values?

<p>The activity does not translate into forward movement (B)</p> Signup and view all the answers

What does high player load indicate?

<p>The acceleration load of the workout or game (B)</p> Signup and view all the answers

What is acceleration load defined as?

<p>The sum of absolute acceleration values (D)</p> Signup and view all the answers

Which factor can influence peak velocity in sports?

<p>Weather conditions during gameplay (A)</p> Signup and view all the answers

How can the style of play of the opponent affect player load measurements?

<p>By skewing interpretations of low player loads or slower speeds (C)</p> Signup and view all the answers

What typically characterizes the intensity difference between practices and games?

<p>Practices sometimes aim for game-like intensities (C)</p> Signup and view all the answers

What is the relationship between practice volume and game intensity?

<p>Higher volume practices often achieve greater intensity than games (B)</p> Signup and view all the answers

How does score differential influence the game's pace?

<p>It can lead teams to slow down when they have a lead (C)</p> Signup and view all the answers

What is acceleration density defined as?

<p>The average of all absolute acceleration values (D)</p> Signup and view all the answers

Flashcards

Player Load

A measure of the total workload a player experiences during training or competition, calculated by the sum of acceleration data collected from a wearable device like Catapult.

Accelerometry & GPS Device

A device worn by athletes to track their movements using sensors, measuring acceleration, velocity, and distance. Catapult is a popular brand of these devices.

Correlation

The ability to measure and compare the relationship between two variables, such as player load and distance traveled.

GPS Distance

The distance covered by an athlete during a game or training session, measured by GPS.

Signup and view all the flashcards

Player Load vs. GPS Distance

The relationship between the player load and distance covered, where higher player load correlates with higher distance covered. This relationship is stronger for activities such as running compared to cutting, jumping, or walking.

Signup and view all the flashcards

Line of Best Fit

A measure of how strong the relationship between two variables is, where a stronger linear correlation indicates a closer connection between the variables.

Signup and view all the flashcards

Speeds (Walking, Running)

The range of speeds at which an athlete moves, where walking is generally slower, running is faster, and activities like jumping or changing directions are less directly measured by GPS.

Signup and view all the flashcards

High Player Load with Low GPS Distance

A measure of player load that may not be accurately captured by GPS distance, such as jumping or other movements with minimal change in distance but high acceleration, which might lead to a mismatch between the two measures.

Signup and view all the flashcards

Acceleration Load

The accumulation of absolute acceleration values during a workout or game.

Signup and view all the flashcards

Acceleration Density

The average of absolute acceleration values during a workout or game.

Signup and view all the flashcards

Top Speed

The speed at which an athlete reaches their fastest point during an activity.

Signup and view all the flashcards

Weather Impact on Top Speed

Weather conditions can significantly influence an athlete's performance, particularly affecting their top speed.

Signup and view all the flashcards

Surface Impact on Top Speed

The type of playing surface (grass, artificial turf) can affect the speed an athlete can achieve.

Signup and view all the flashcards

Opponent's Play Style

The style of play of an opponent can influence an athlete's performance and may result in misinterpretation of player load or speed.

Signup and view all the flashcards

Score Differential Impact

The difference in the score between two teams can affect the pace and intensity of the game, impacting player load and speed.

Signup and view all the flashcards

Practice vs. Game Intensity

The intensity of a training session may not always match the intensity of a game.

Signup and view all the flashcards

Study Notes

External Measures in Training and Performance Evaluation

  • External measures, like accelerometry and GPS, are used to evaluate training and performance.
  • Player load is calculated from acceleration data.
  • GPS distance and player load are correlated during competition and training.
  • The correlation is stronger in sports like soccer where running and movement are significant.
  • Correlation is observed between GPS velocity and player load using tri-axial accelerometry.
  • Player load shows a clear demarcation between walking (2-4 mph) and running.
  • Vertical jumps and movements without horizontal displacement might show a high player load but low distance traveled.
  • Player load is about acceleration accumulation, not just a measure related to distance traveled.
  • Acceleration load is the accumulated absolute acceleration values
  • Acceleration density is the average absolute acceleration
  • Average player load per minute is frequently used as a measure of density.

Performance Metrics and Influences

  • Top speed is an interesting performance metric, but subject to influence.
  • Weather conditions (e.g., snow) and playing surface, affect top speed.
  • Opponent play style and score differences impact gameplay intensity and pace.
  • Intensity of practices should ideally match that of games.
  • Practice volume may equal or exceed gameplay volume, but not intensity.
  • High-volume practices may be used to reduce practice injuries.

Practice and Game Data

  • Data from high-volume, intense practices is compared to game data.
  • Total practice volume may be higher than total game volume, but not time/duration.
  • Game-time player load per minute is higher than practice load, but maximum velocity might be similar.
  • Data from all players during every practice and game are useful tools for injury prevention.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Player Load Evaluation in Sports (PDF)

Description

Explore the use of external measures such as accelerometry and GPS in evaluating training and performance. Understand the relationship between player load, acceleration, and movement in sports, particularly in soccer. This quiz highlights the significance of these metrics in assessing athlete performance and training efficiency.

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser