Results 11 to 20 of about 23,105 (226)

Countermovement Jump Force-Time Mechanics Differentiate ACL Injury Status in Elite Alpine Ski Racers. [PDF]

Scand J Med Sci Sports
ABSTRACT Biomechanical assessments of stretch‐shortening cycle (SSC) movements such as the countermovement jump (CMJ) are used to evaluate neuromuscular function in alpine ski racers after anterior cruciate ligament reconstruction (ACLR). However, this analysis yields multiple CMJ force‐time metrics that quantify SSC mechanics, creating challenges for ...
Morris N, Torres RDS, Heard M, Baker PD, Herzog W, Jordan MJ.   +5 more
europepmc   +2 more sources

Reliability of the Single-Leg, Medial Countermovement Jump in Youth Ice Hockey Players

Sports, 2021
Appropriate performance tests are critical for documenting training, fatigue and injury-related changes. Functional performance testing can provide quantitative information on specialized sport movements. The single-leg, medial countermovement jump is an
Anthony S. Donskov, Jeffrey S. Brooks, James P. Dickey   +2 more
doaj   +1 more source

The Effect of an In-Season 8-Week Plyometric Training Programme Followed By a Detraining Period on Explosive Skills in Competitive Junior Soccer Players [PDF]

Montenegrin Journal of Sports Science and Medicine, 2020
The aim of this study was to examine the effect of an eight-week plyometric training and resistance programme, on different motor abilities, kicking speeds, and individual techniques in competitive junior soccer players. A training programme was applied
Luis Branquinho, Ricardo Ferraz, Pedro Duarte Mendes, João Petricia, João Serrano, Mário C. Marques   +5 more
doaj   +1 more source

LOAD THAT MAXIMIZES POWER OUTPUT IN COUNTERMOVEMENT JUMP [PDF]

Revista Brasileira de Medicina do Esporte, 2016
ABSTRACT Introduction: One of the main problems faced by strength and conditioning coaches is the issue of how to objectively quantify and monitor the actual training load undertaken by athletes in order to maximize performance. It is well known that performance of explosive sports activities is largely determined by mechanical power.
Jimenez-Reyes, Pedro, Cuadrado-Peñafiel, Victor, Pareja-Blanco, Fernando, Párraga-Montilla, Juan, Bendala, Francisco Javier Toscano, Gonzalez-Badillo, Juan José   +5 more
openaire   +4 more sources

Ability of Countermovement Jumps to Detect Bilateral Asymmetry in Hip and Knee Strength in Elite Youth Soccer Players

Sports, 2023
Clinicians frequently assess asymmetry in strength, flexibility, and performance characteristics as a method of screening for potential musculoskeletal injury.
Hailey L. Wrona, Ryan Zerega, Victoria G. King, Charles R. Reiter, Susan Odum, Devon Manifold, Karyn Latorre, Timothy C. Sell   +7 more
doaj   +1 more source

Influence of countermovement depth on the countermovement jump‐derived reactive strength index modified

European Journal of Sport Science, 2020
AbstractThis study aimed to investigate the effect of countermovement depth on the magnitude of the countermovement jump (CMJ) derived reactive strength index modified (RSImod), and to compare the RSImod between the CMJ performed with a self‐preferred knee flexion angle (CMJpref) and the CMJ performed from a pre‐determined knee flexion angle (CMJrefer)
Alejandro Pérez‐Castilla, Jonathon Weakley, Felipe García‐Pinillos, F. Javier Rojas, Amador García‐Ramos   +4 more
openaire   +5 more sources

Gaelic Football Match-Play: Performance Attenuation and Timeline of Recovery

Sports, 2020
This study investigated acute changes in markers of fatigue and performance attenuation during and following a competitive senior club-level Gaelic football match.
Lorcan S. Daly, Ciarán Ó Catháin, David T. Kelly   +2 more
doaj   +1 more source

An Evaluation of the Accuracy and Precision of Jump Height Measurements Using Different Technologies and Analytical Methods

Applied Sciences, 2022
This study aims to comprehensively assess the accuracy and precision of five different devices and by incorporating a variety of analytical approaches for measuring countermovement jump height: Qualisys motion system; Force platform; Ergojump; an ...
Filipe Conceição, Martin Lewis, Hernâni Lopes, Elza M. M. Fonseca   +3 more
doaj   +1 more source

Complex training: The effect of exercise selection and training status on postactivation potentiation in rugby league players [PDF]

, 2017
This study compared the postactivation potentiation (PAP) response of the hex bar deadlift (HBD) and back squat (BS) exercises. The PAP response between different levels of athletes was also compared.
Ditroilo, Massimiliano, Marshall, Phil, Scott, David J.   +2 more
core   +1 more source

Test–Retest Reliability of the Magnitude and Direction of Asymmetry in the Countermovement Jump, Drop Jump, and Countermovement Rebound Jump

Symmetry, 2023
This study aimed to investigate the test–retest reliability of three bilateral jump tests to assess asymmetry and determine the consistency of both the magnitude and direction of asymmetry between two testing sessions. Thirty-three participants performed the countermovement jump (CMJ), drop jump (DJ), and countermovement rebound jump (CMRJ—jump 1 ...
Jiaqing Xu, Matthew J. Jordan, Shyam Chavda, Anthony Turner, Chris Bishop   +4 more
openaire   +1 more source