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

Muscles that Move the Leg01:23

Muscles that Move the Leg

6.2K
The movement of the legs is facilitated by numerous muscles located within the anterior, medial, and posterior compartments of the thigh.
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed...
6.2K
Muscles of the Leg that Move the Foot and Toes01:28

Muscles of the Leg that Move the Foot and Toes

4.7K
The human leg comprises an intricate system of muscles that facilitate the movement of feet and toes. Within this system, the muscles are categorized into the anterior, lateral, and posterior compartments, each with a unique set of muscles carrying out specific functions.
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles....
4.7K
Relative Motion Analysis - Acceleration01:10

Relative Motion Analysis - Acceleration

1.0K
A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
1.0K
Excitation-Contraction Coupling in Skeletal Muscles01:20

Excitation-Contraction Coupling in Skeletal Muscles

18.5K
Excitation-contraction coupling is a series of events that occur between generating an action potential and initiating a muscle contraction. It occurs at the triad, a structure found in skeletal muscle fibers that comprise a T-tubule and terminal cisternae of the sarcoplasmic reticulum on each side. These triads are visible in longitudinally sectioned muscle fibers. They are typically located at the A-I junction — the junction between the A and I bands of the sarcomere.
When an action...
18.5K

You might also read

Related Articles

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

Sort by
Same author

Relationships Between Isometric Midthigh Pull, Body Mass, Countermovement Jump, Upper-Body Muscular Endurance, and Intermittent Running With Job Task Performance in Firefighter Trainees.

Journal of strength and conditioning research·2026
Same author

White Ball Power Hitting: A Comparison of the Anthropometrics and Physical Determinants in County vs. Noncounty Youth Cricketers for Predicting Batting Performance.

Journal of strength and conditioning research·2026
Same author

A Preliminary Analysis of Self-Efficacy Relationships With General and Job-Specific Fitness in Law Enforcement Officers.

Journal of strength and conditioning research·2025
Same author

Can Motivation and Self-Efficacy Predict a Law Enforcement Officer's General and Job-Specific Fitness?

International journal of exercise science·2025
Same author

Motivation Relationships with Physical Activity and Resistance Training Engagement, and Health and Fitness of Law Enforcement Officers.

Healthcare (Basel, Switzerland)·2025
Same author

Coronary Artery Calcium Status, Body Composition, Blood Lipids, and Fitness Among Firefighters Participating in a Health and Wellness Program.

Journal of strength and conditioning research·2025

Related Experiment Video

Updated: Mar 26, 2026

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

Interaction Between Leg Muscle Performance and Sprint Acceleration Kinematics.

Robert G Lockie1, Farzad Jalilvand1, Samuel J Callaghan2

  • 1Department of Kinesiology, California State University, Northridge, Northridge, USA.

Journal of Human Kinetics
|February 4, 2016
PubMed
Summary

This study found that leg power and strength are important for sprint acceleration in athletes. However, the relationships were modest, indicating a complex interplay between technique and muscle performance during sprints.

Keywords:
field sportsleg powermusculotendinous stiffnesssquat strengthstep kinematics

More Related Videos

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
07:30

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations

Published on: May 1, 2018

16.1K
Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study
08:40

Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study

Published on: November 11, 2022

1.5K

Related Experiment Videos

Last Updated: Mar 26, 2026

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
Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
07:30

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations

Published on: May 1, 2018

16.1K
Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study
08:40

Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study

Published on: November 11, 2022

1.5K

Area of Science:

  • Sports Science
  • Biomechanics
  • Exercise Physiology

Background:

  • Sprint acceleration is crucial for field sport athletes.
  • Understanding the determinants of sprint performance, including biomechanical and neuromuscular factors, is essential for effective training.

Purpose of the Study:

  • To investigate the relationships between 10 m sprint acceleration, step kinematics, and leg muscle performance in field sport athletes.
  • To identify key predictors of sprint acceleration among various measures of leg power, stiffness, and strength.

Main Methods:

  • Twenty-eight field sport athletes performed 10 m sprints, filmed for kinematic analysis.
  • Measures included countermovement jumps (CMJ), a five-bound test (5BT), reactive strength index (RSI) from drop jumps, hopping for leg stiffness, and 3-repetition maximum squat for strength.
  • Pearson's correlations and stepwise regression analyses were used to determine relationships.

Main Results:

  • Countermovement jump height significantly correlated with and predicted sprint velocity across all intervals.
  • The five-bound test and reactive strength index also showed significant relationships with velocity.
  • Leg strength was associated with reduced flight time and increased step length during acceleration.
  • Leg stiffness did not correlate with acceleration kinematics.

Conclusions:

  • Leg power and strength are related to sprint acceleration, supporting previous research.
  • The predictive relationships were relatively low, highlighting the complex interaction between sprint technique and neuromuscular factors.
  • Strength and conditioning programs should focus on developing and expressing leg power and strength for improved acceleration in field sport athletes.