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Dimensionality Reduction for Countermovement Jump Metrics

Lachlan P. James, Haresh Suppiah, Michael R. McGuigan, and David L. Carey

Countermovement jump (CMJ) assessment is a commonly used test in strength and conditioning to inform the training process. For example, it can be used to explore neuromuscular function, assess the response to training interventions, monitor athletes’ performance readiness through a competitive

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Countermovement Jump Height in National-Team Athletes of Various Sports: A Framework for Practitioners and Scientists

Thomas A. Haugen, Felix Breitschädel, Håvard Wiig, and Stephen Seiler

jump is the exercise modality where the highest anaerobic power output values are obtained, 6 although a direct relationship between jump height and power output is confounded by body mass, push-off distance, optimal loading, and individual force–velocity profile. 7 The countermovement jump (CMJ) test

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Effects of Task Constraints on Countermovement Jump Kinematics Following a Short-Term Training

Amirhossein Emamian, Alireza Hashemi Oskouei, Rasoul Azreh, and Kevin Carroll

kinematic variables of movement ( Bartlett, 2014 ; Newell, 1985 ). The phenomenon of motor learning development due to implementing movement constraint could be examined in fundamental or advanced skills ( Davids et al., 2008 ). For instance, this phenomenon may be tested for the countermovement jump (CMJ

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Effects of Caffeine on Countermovement-Jump Performance Variables in Elite Male Volleyball Players

Hermann Zbinden-Foncea, Isabel Rada, Jesus Gomez, Marco Kokaly, Trent Stellingwerff, Louise Deldicque, and Luis Peñailillo

significant jump-performance improvements in elite female players. 18 To test jump ability, the countermovement jump (CMJ) is commonly used since it replicates jumps performed during a real game. Furthermore, the CMJ has been shown to be one of the best tests to detect neuromuscular fatigue due to its high

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Effect of Gastrocnemius Kinesio Taping on Countermovement Jump Performance and Vertical Stiffness Following Muscle Fatigue

Sahar Boozari, Mohammad Ali Sanjari, Ali Amiri, and Ismail Ebrahimi Takamjani

, proprioception, power, and pain. 2 , 3 , 5 , 6 Some have suggested that the effects of KT would be more beneficial if they also existed in functional situations, high-load tasks, or fatiguing circumstances. 5 – 7 A popular use of KT is in sports activities, such as countermovement jump (CMJ). 5 , 6 , 8 – 11

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Effects of Weighted Vest Loading During Daily Living Activities on Countermovement Jump and Sprint Performance

Jeffrey D. Simpson, Ludmila Cosio-Lima, Eric M. Scudamore, Eric K. O’Neal, Ethan M. Stewart, Brandon L. Miller, Harish Chander, and Adam C. Knight

Wearing a weighted vest (WV) during daily living activities and training (WVDT), 1 – 3 or during daily living only, 4 – 6 is one form of external loading used to enhance countermovement jump (CMJ) and sprinting performance. The theoretical benefits of WVDT were supported in a seminal

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Countermovement Jump Recovery in Professional Soccer Players Using an Inertial Sensor

Malachy P. McHugh, Tom Clifford, Will Abbott, Susan Y. Kwiecien, Ian J. Kremenic, Joseph J. DeVita, and Glyn Howatson

Countermovement jump (CMJ) tests are commonly used to assess recovery of muscle function following strenuous exercise. Impairments in CMJ have been demonstrated on the days following various forms of exercise including drop jump protocols, 1 – 3 repeated sprint, and simulated field sport tests 4

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Effects of Athlete-Dependent Traits on Joint and System Countermovement-Jump Power

Kym J. Williams, Dale W. Chapman, Elissa J. Phillips, and Nick Ball

quasi-linear force–velocity relationship is reported, 4 with empirical evidence supporting a load equal to body mass as the optimal load to maximize system power during a countermovement jump (CMJ). 5 – 7 Long-term specialized training can have a profound influence on a muscle’s contractile profile, 8

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Monitoring Changes in Lower-Limb Strength and Power in Elite Athletes With the Countermovement-Jump and Keiser Leg-Press Tests

Sondre Nysether, Will G. Hopkins, Fredrik Mentzoni, Gøran Paulsen, Thomas A. Haugen, and Paul A. Solberg

Strength and power in the lower limbs are crucial underpinning performance factors in several sports, 1 , 2 and regular testing of these capacities is often undertaken to monitor progress of athletes. 3 The countermovement jump (CMJ) is one of the most common tests for this purpose. 3 – 6

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No Effect of Partial-Body Cryotherapy on Restoration of Countermovement Jump or Well-Being Performance in Elite Rugby Union Players During the Competitive Phase of the Season

Adam Grainger, Paul Comfort, and Shane Heffernan

activities. 2 , 3 Evidence to support delayed restoration after “rugby match play” is well documented. 3 , 4 McLellan et al 4 assessed markers of postmatch fatigue in elite rugby league, showing that countermovement jump (CMJ) peak power was reduced for up to 48 hours and that creatine kinase and cortisol