Results 91 to 100 of about 14,293 (220)

Study of the internal mechanism of attention focus affecting countermovement jump performance based on muscle synergy theory.

PLoS ONE
ObjectiveThe purpose of this study was to explain the internal mechanism of attention focus affecting performance of countermovement jump based on muscle synergy theory.MethodsParticipants involved untrained group(N = 10) and high-level group(N = 11 ...
Fan Peng, Dongxue Wang, Yonghao Zhang, Yongmin Xie   +3 more
doaj   +1 more source

Non‐Operative Management of a Complete ACL Rupture With the Cross‐Bracing Protocol in an Elite Australian Rules Football Athlete

Clinical Case Reports, Volume 14, Issue 6, June 2026.
Longitudinal MRI assessment of a complete ACL rupture in a 20‐year‐old female athlete managed non‐operatively with the Cross Bracing Protocol: Proton density fat saturated (PD‐FS) sequence MRI of the left knee in the sagittal plane with complete ACL rupture at day 3 post injury.
Keiley Mead, Matthew Dowsett, Zoe Cass, Stephanie Filbay   +3 more
wiley   +1 more source

Physical impact of volleyball matches on adolescent athletes: Insights into fatigue and recovery

Journal Sport Area
Background Problems: Research on adolescent volleyball athletes is limited, especially regarding the acute effects of competition on physiological responses such as Blood Lactate Concentration (BLC), sprint performance, and Countermovement Jump (CMJ ...
Atri Widowati, Grafitte Decheline, Fitri Diana, Sugih Suhartini, Yonifia Anjanika   +4 more
doaj   +1 more source

Squat and countermovement jump performance across a range of loads: a comparison between Smith machine and free weight execution modes in elite sprinters

, 2022
The aims of this study were to: 1) provide and compare the height achieved during Smith machine (SM) and free weight (FW) loaded jumps executed over a wide spectrum of loads (40–120% of body mass [BM]); and 2) test the difference between loaded and ...
Loturco, Irineu, Irineu Loturco, Fábio Nakamura, Lucas A. Pereira, Tomás T. Freitas, Nakamura, Fábio Y., Pareja-Blanco, Fernando, Freitas, Tomás T., Pereira, Lucas A., Michael McGuigan, Fernando Pareja-Blanco, Pedro Valenzuela, Mcguigan, Michael R., Daniel Boullosa, Boullosa, Daniel A., Valenzuela, Pedro L.   +15 more
core   +1 more source

DiVerential eVects of countermovement magnitude and volitional eVort on vertical jumping

, 2011
The importance of vertical jumping in sport and rehabilitative medicine is widely recognized. Despite the ample use of jump tests to assess neuromuscular function, the diVerential eVects of muscular activation (volitional eVort) and strategy ...
Rittweger, Jörn, Baltzopoulos, Vasilios, Salles, Andre S   +2 more
core  

Dryland Performance Tests Are Not Good Predictors of World Aquatics Points in Elite Male and Female Swimmers

Sports
Background: Swim performance can be reliant on strength and power. Standardisation of swim performance in different events, distances, and sexes can be completed using World Aquatics points, allowing for ranking of swimmers. The aim of this retrospective
Ragul Selvamoorthy, Lewis J. Macgregor, Neil Donald, Angus M. Hunter   +3 more
doaj   +1 more source

Enhanced Performance With Elastic Resistance During the Eccentric Phase of a Countermovement Jump

, 2013
Purpose: To identify the effect of additional elastic force on the kinetic and kinematic characteristics, as well as the magnitude of leg stiffness, during the performance of accentuated countermovement jumps (CMJs).
Mokhtar, A.H., Thompson, M.W., Aboodarda, S.J., Yusof, A., Abu Osman, Noor Azuan   +4 more
core  

Concurrent validity of Myotest for assessing explosive strength indicators in countermovement jump

Acta Gymnica, 2018
Background: Previous research has determined the validity and reliability of accelerometer-based devices, but the findings are not consistent. Objective: The purpose of this study was to determine the validity of an accelerometer (Myotest PRO) for ...
Vladimír Hojka, James J. Tufano, Tomáš Malý, Petr Šťastný, Radim Jebavý, Jan Feher, František Zahálka, Tomáš Gryc   +7 more
doaj   +1 more source

Vertical Jump Height Estimation Using Low-Sampling IMU in Countermovement Jumps: A Feasible Alternative to Motion Capture and Force Platforms

Sensors
Vertical jump height from a countermovement jump is a widespread metric to assess the lower limb functionality. Motion capture systems and force platforms are considered gold standards to estimate vertical jump height; however, their use in ecological ...
Giacomo Villa, Alessandro Bonfiglio, Manuela Galli, Veronica Cimolin   +3 more
doaj   +1 more source

Relationships Between Countermovement Jump Ground Reaction Forces and Jump Height, Reactive Strength Index, and Jump Time

, 2018
The purpose of this study was to determine the relationship between ground reaction force (GRF) variables to jump height, jump time, and the reactive strength index (RSI).
Leland A. Barker, John A. Mercer, Harry, John R., John R. Harry, Barker, Leland A., Mercer, John A.   +5 more
core   +1 more source