Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Social Facilitation01:04

Social Facilitation

36.7K
Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
36.7K
Competition02:34

Competition

25.3K
When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.
25.3K
Dynamic Equilibrium02:20

Dynamic Equilibrium

66.6K
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
66.6K
Motion of a Projectile01:23

Motion of a Projectile

3.6K
Projectile motion becomes evident when a player kicks the ball into the air. The launch angle, or the angle at which the ball is kicked, plays a crucial role in determining the trajectory of the projectile. As the ball soars through the air, influenced solely by gravity, its motion can be dissected into two independent velocity components: the horizontal and the vertical.
Horizontal motion, governed by the initial kick, maintains a constant velocity throughout the flight of the soccer ball.
3.6K
Standard Deviation01:10

Standard Deviation

29.1K
The most commonly used measure of variation is the standard deviation. It is a numerical value measuring how far data values are from their mean. The standard deviation value is small when the data are concentrated close to the mean, exhibiting slight variation or spread. The standard deviation value is never negative, it is either positive or zero. The standard deviation is larger when the data values are more spread out from the mean, which means the data values are exhibiting more variation.
29.1K
Factors Affecting Activity Coefficient01:17

Factors Affecting Activity Coefficient

1.8K
The extended Debye-Hückel equation indicates that the activity coefficient of an ion in an aqueous solution at 25°C depends on three partially interdependent properties: the ionic strength of the solution, the charge of the ion, and the ion size. 
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
1.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Predictors for failed same-day discharge after total shoulder arthroplasty.

Journal of shoulder and elbow arthroplasty·2026
Same author

Constructing characteristic signals of head acceleration events in stock car racing.

Traffic injury prevention·2026
Same author

The Concurrent Validity and Test-Retest Reliability of a Smartphone-Based Markerless System.

Sensors (Basel, Switzerland)·2026
Same author

Sex Differences in the Relationship Between Hand and Leg Dominance and Knee Osteoarthritis Laterality.

Journal of surgical orthopaedic advances·2026
Same author

Head acceleration event frequency among drivers across track types in Stock Car Auto Racing.

Traffic injury prevention·2026
Same author

Measurements of distalization and lateralization do not correlate with patient reported outcome measures following reverse shoulder arthroplasty.

Clinics in shoulder and elbow·2026

Related Experiment Video

Updated: Mar 26, 2026

Importance of Jumping Ability in Handball Throwing Speed and Accuracy
02:43

Importance of Jumping Ability in Handball Throwing Speed and Accuracy

Published on: April 4, 2025

1.6K

Basketball Players' Dynamic Performance Across Competition Levels.

Garrett S Bullock1, Todd W Arnold2, Phillip J Plisky3

  • 1Doctor Division of Physical Therapy, Duke University, Durham, North Carolina.

Journal of Strength and Conditioning Research
|February 9, 2016
PubMed
Summary

Dynamic balance varies significantly across basketball competition levels. Professional players showed poorer dynamic balance than lower levels, highlighting the need for level-specific injury risk assessments using the Lower Quarter Y Balance Test.

More Related Videos

Biomechanical Analysis Methods to Assess Professional Badminton Players' Lunge Performance
06:36

Biomechanical Analysis Methods to Assess Professional Badminton Players' Lunge Performance

Published on: June 11, 2019

11.6K
An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
06:52

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

8.8K

Related Experiment Videos

Last Updated: Mar 26, 2026

Importance of Jumping Ability in Handball Throwing Speed and Accuracy
02:43

Importance of Jumping Ability in Handball Throwing Speed and Accuracy

Published on: April 4, 2025

1.6K
Biomechanical Analysis Methods to Assess Professional Badminton Players' Lunge Performance
06:36

Biomechanical Analysis Methods to Assess Professional Badminton Players' Lunge Performance

Published on: June 11, 2019

11.6K
An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
06:52

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

8.8K

Area of Science:

  • Sports Medicine
  • Biomechanics
  • Injury Prevention

Background:

  • Dynamic balance is crucial for assessing lower extremity injury risk in athletes.
  • Sport-specific and competition-level dynamic balance benchmarks are needed.
  • The Lower Quarter Y Balance Test (YBT-LQ) is a key tool for evaluating dynamic balance.

Purpose of the Study:

  • To investigate dynamic balance differences in basketball players across middle school, high school, college, and professional levels.
  • To determine if competition level influences performance on the YBT-LQ.
  • To establish competition-specific normative data for dynamic balance in basketball.

Main Methods:

  • Utilized the Lower Quarter Y Balance Test (YBT-LQ) to assess dynamic balance.
  • Recruited basketball players from four distinct competition levels: middle school (n=88), high school (n=105), college (n=46), and professional (n=41).
  • Employed analysis of variance (ANOVA) and Tukey post hoc tests to analyze group differences, with effect size indices (ESI) for clinical relevance (p ≤ 0.05).

Main Results:

  • High school players demonstrated superior anterior reach compared to middle school and college players.
  • Professional players exhibited the poorest anterior reach performance, significantly lower than all other groups.
  • While high school, college, and professional players showed similar performance in posteromedial, posterolateral reaches, and composite scores, high school players outperformed middle schoolers.
  • Professional players displayed lower asymmetry scores compared to middle school, high school, and college players.

Conclusions:

  • Significant variations in dynamic balance performance exist across different basketball competition levels.
  • Professional basketball players may present unique dynamic balance characteristics, including increased asymmetry.
  • Developing competition-specific normative values for dynamic balance using the YBT-LQ is essential for accurate injury risk stratification in basketball players.