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Validity and Reliability of Handheld Dynamometry to Assess Isometric Hamstrings and Quadriceps Strength at Varying Muscle Lengths

Margaux Baron, Gilles Divernois, Benoît Grandjean, and Kenny Guex

lengthened position of the hamstring across the hip and knee joints or trunk flexion with an associated active knee extension. 6 Measuring muscle strength clinically can help to identify patients at higher risk for injury or to establish their readiness to return to sport or work after an injury. 8 It may

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Comparison of the Position-Matching and Position-Reproducing Tasks to Detect Deficits in Knee Position Sense After Reconstruction of the Anterior Cruciate Ligament

Takuma Hoshiba, Hiroki Nakata, Yasuaki Saho, Kazuyuki Kanosue, and Toru Fukubayashi

behavioral characteristics would help appropriately design rehabilitation interventions before a patient returns to his or her sport activities. To assess deficits in the awareness of knee joint position following ACL injury and/or reconstruction, the position-reproducing task has been the most applied in

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Clinical Breathing Mechanics Differ Based on Test and Position

Hannah Horris, Barton E. Anderson, R. Curtis Bay, and Kellie C. Huxel Bliven

contraction. 6 As body positions change and postural demands increase, such as when moving from supine to seated to standing positions, the diaphragm’s ability to maintain both respiration and postural stabilization roles may be challenged, thus increasing the propensity for altered breathing mechanics in

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Overhead Shoulder Position Versus Scapular Retraction Position to Normalize the Electromyographic Signal of the Lower Trapezius Muscle

Jefferson J. dos Santos, Rebeca O. Nagy, Leonardo Intelangelo, Isabella C. Ferreira, Michelle A. Barbosa, Gabriela Silveira-Nunes, and Alexandre Carvalho Barbosa

recommendations concerning the normalization of the sEMG amplitude. 3 The consensus stated that the aim of the electromyographic normalization is to enable comparisons between participants, muscles, measurement sessions, or electrode positions, minimizing the features that would influence the amplitude of the

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The Role of an Actual Brand Positioning: An Analysis of Digital Advertisements

June Won and J. Lucy Lee

Brand positioning is an attempt to create, modify, or reinforce specific images about a brand in the consumer’s mind. Effective brand positioning is crucial for business success ( Devlin et al., 1995 ; Porter, 1996 ) because it enables a business to maximize the differentiation of its brand from

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A Peculiarity That Positions Sport Management

Brian M. Mills

upon firm management and strategy. There will always be a need for our programs to serve these business stakeholders and train students to work in those settings. But SM is well positioned to also understand how the broader sport producing core (as described by Agha and Dixon ( 2019 )) can achieve

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Reducing Aerodynamic Drag by Adopting a Novel Road-Cycling Sprint Position

Paul F.J. Merkes, Paolo Menaspà, and Chris R. Abbiss

characteristics, and environmental variables. 6 Therefore, CdA plays an important role in cycling, but is often overlooked, particularly within the sprint. Depending on the equipment and position of a cyclist on the bicycle, aerodynamic resistance represents approximately 95% of the total resistive forces

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Effective Stretching Positions of the Piriformis Muscle Evaluated Using Shear Wave Elastography

Hikari Itsuda, Masahide Yagi, Ko Yanase, Jun Umehara, Hiyu Mukai, and Noriaki Ichihashi

moment arm for hip extension and abduction also changes with hip joint angle. 10 Thus, the conventional stretching method may not be an effective stretching position for the PM. A study that simulated the amount of PM elongation reported that the PM was most stretched in a position that combined 117

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Exercises in Motor Development Positions. What Happens With the Activity of Antagonist Muscle Pairs? Pilot Study

Esther Casas, Arturo Justes, and Carlos Calvo

joint and in all possible positions it can adopt. In rehabilitation of severe CNS pathological conditions, such as cerebral palsy or cerebrovascular accidents, different reflex methods (Vöjta 1 and Brunkow 2 methods) have been used to facilitate muscle activity. These methods achieve coordinated

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Upper Limb Proprioceptive Acuity Assessment Based on Three-Dimensional Position Measurement Systems

Lin Li, Yanxia Li, Chang-hong Wu, and Hao Fu

Proprioception is responsible for communicating information regarding muscle contraction and force from the periphery to the central nervous system. This sense is necessary for the body to maintain its joint position sense (JPS), postural status, and global position in space ( Cappello et al., 1997