Results 101 to 110 of about 23,105 (226)

Dynamic Stabilization During the Landing Phase of Plyometric Exercises [PDF]

open access: yes, 2010
This study examined the differences in and the reliability of time to stabilization (TTS) of several plyometric exercises. Twenty six men performed a variety of plyometric exercises representing a continuum of intensities of landing instability ...
Ebben, William   +5 more
core   +2 more sources

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

open access: yesActa 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   +7 more
doaj   +1 more source

Understanding the key phases of the countermovement jump force-time curve [PDF]

open access: yes, 2018
The countermovement jump (CMJ) test is commonly conducted to assess neuromuscular function and is being increasingly performed using force platforms. Comprehensive insight into athletes’ neuromuscular function can be gained through detailed analyses ...
Comfort, P   +3 more
core   +2 more sources

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

open access: yesSensors
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   +3 more
doaj   +1 more source

The Effect of Concurrent Activation Potentiation on the Knee Extensor and Flexor Performance of Men and Women [PDF]

open access: yes, 2010
This study evaluated the effect of remote voluntary contractions (RVC) during isometric and isokinetic knee flexion and extension tests and evaluated gender differences therein.
Ebben, William   +3 more
core   +2 more sources

Reactive Strength Index Modified Is a Valid Measure of Explosiveness in Collegiate Female Volleyball Players [PDF]

open access: yes, 2016
Kipp, K, Kiely, MT, and Geiser, CF. Reactive strength index modified is a valid measure of explosiveness in collegiate female volleyball players. J Strength Cond Res 30(5): 1341–1347, 2016—The purpose of this study was to investigate the validity of the ...
Geiser, Christopher   +2 more
core   +1 more source

Influence of reactive strength index modified on force- and power-time curves [PDF]

open access: yes, 2017
Purpose: The reactive strength index modified (RSImod) has been recently identified and validated as a method of monitoring countermovement jump (CMJ) performance.
Beattie   +55 more
core   +1 more source

Impact of Deadlift and Power Clean on Vertical and Broad Jump Performance [PDF]

open access: yes, 2020
A transfer between weightlifting and jumps is based on principles of increased demands being placed upon the muscular system while performing similar movement patterns.
Sperling, Connor
core   +1 more source

Is the effect of a countermovement on jump height due to active state development? [PDF]

open access: yes, 2005
Purpose: To investigate whether the difference in jump height between countermovement jumps (CMJ) and squat jumps (SJ) could be explained by a difference in active state during propulsion.
Bobbert, M.F., Casius, L.J.R.
core   +2 more sources

Vertical stiffness asymmetries during drop jumping are related to ankle stiffness asymmetries [PDF]

open access: yes, 2016
Asymmetry in vertical stiffness has been associated with increased injury incidence and impaired performance. The determinants of vertical stiffness asymmetry have not been previously investigated.
Alexander   +44 more
core   +2 more sources

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