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Pai-Yun Cheng, Hsiao-Feng Chieh, Chien-Ju Lin, Hsiu-Yun Hsu, Jia-Jin J. Chen, Li-Chieh Kuo and Fong-Chin Su

-extremity functions ( Liu et al., 2017 ; Shiffman, 1992 ). Muscle strength will be restrained by the number and mechanical properties of motor units ( Carmeli, Patish, & Coleman, 2003 ), and reduced sensory inputs might affect the sensorimotor coordination and force control of older adults ( Cole, 1991 ). Decreasing

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John J. McMahon, Paul A. Jones, Timothy J. Suchomel, Jason Lake and Paul Comfort

The Reactive Strength Index (RSI) accounts for the duration of force production to achieve a given jump height by dividing jump height by ground-contact time. 1 RSI is a more easily obtainable metric than force-platform-derived variables, and it provides greater insight into neuromuscular and

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Pedro Jiménez-Reyes, Amador García-Ramos, Victor Cuadrado-Peñafiel, Juan A. Párraga-Montilla, José A. Morcillo-Losa, Pierre Samozino and Jean-Benoît Morin

been conducted to investigate the effects of different training methods on acceleration and maximal sprint capacities. 5 – 9 A new training approach based on the force–velocity (F–V) profile has gained in popularity over recent years to enhance sprint performance. 10 , 11 The F–V profile in sprinting

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Abderrahmane Rahmani, Pierre Samozino, Jean-Benoit Morin and Baptiste Morel

Bench-press exercise is often used as a simple test to evaluate the upper-limb force, velocity, and power output. 1 – 3 These muscle parameters are usually determined using a force platform 4 , 5 or kinematic systems such as optical encoders 6 , 7 or linear transducers. 1 , 8 – 10 Although

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Juan A. Escobar Álvarez, Juan P. Fuentes García, Filipe A. Da Conceição and Pedro Jiménez-Reyes

focused on muscular strength and power output. 4 , 5 , 8 , 11 Over the last few years, new findings and field methods in ballistic actions have highlighted the importance of measuring the relationship between force and velocity mechanical capabilities during jumping performance, known as the force

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Gemma N. Parry, Lee C. Herrington and Ian G. Horsley

important to identify ways of assessing an athlete’s ability to produce upper-limb force in order to not only understand an individual’s performance potential but also monitor training program effects, long-term development, and talent identification. Despite the importance of upper-limb muscular power

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Tomoko Aoki, Hayato Tsuda and Hiroshi Kinoshita

abilities to control grip force appropriately tuned for given friction between the digits and object held by the two digits ( Cole, 1991 ), and to control the force directions by the two digits and the moments acting on freely movable objects ( Parikh & Cole, 2012 ). Ranganathan, Siemionow, Sahgal, and

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Ryan Morrison, Kyle M. Petit, Chris Kuenze, Ryan N. Moran and Tracey Covassin

diagnostic accuracy and reliability. Due to the subjective nature of these tests, a force plate is considered the gold standard because of its objective outcome. 6 Force-plate analysis allows for the athlete center of pressure (COP) to be calculated based on the foot contact of an individual while on the

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Kelsey Lucca, David Gire, Rachel Horton and Jessica A. Sommerville

key elements of cognition, affect, and motor behavior. To illustrate, imagine locking your keys inside a car. To get them out, you might draw on motor abilities and exert high levels of force in trying to pry the door open. You might recruit cognitive resources and contemplate the most strategic way

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Dean Norris, David Joyce, Jason Siegler, James Clock and Ric Lovell

requiring only a force platform (portable) and a Smith machine common to most elite training facilities. The adoption of this test may also stem from the relative ease of assessment, reproducibility, nonfatiguing nature, high correlations to other dynamic explosive and strength measures, and minimal