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John H. Challis

can provide insight into aspects of human movement (intraspecies scaling). Geometric Scaling Allometry broadly refers to the study of size relationships between different features of an organism, with a specific case being geometric scaling where size varies but not the shape. Figure  1 shows cubes

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Carlo Di Brina, Roberto Averna, Paola Rampoldi, Serena Rossetti and Roberta Penge

on the basis of their Movement Assessment Battery for Children (M-ABC) performance. The M-ABC ( Henderson & Sugden, 1992 ) is a norm-referenced, valid, and reliable assessment of motor competence ( Chow & Henderson, 2003 ; interrater reliability: r  = .96; test–retest: .77), which has been widely

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Blandine Bril

motor learning better? Is culture just an additional factor that “exerts direct influence over the potential structure of the movement” ( Higgins, 1985 , p. 140)? Ethnographic data clearly show that morphological and biomechanical factors are not the only ones to influence how a motor task is solved

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Julie Vaughan-Graham, Kara Patterson, Karl Zabjek and Cheryl A. Cott

Human movement is a complex phenomenon presenting considerable challenges regarding how it is systematically and consistently described and investigated both from clinical and research perspectives ( Harbourne & Stergiou, 2009 ; Latash, Levin, Scholz, & Schöner, 2010 ; Levin, Liebermann, Parmet

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Wesley O’Brien, Michael J. Duncan, Orlagh Farmer and Diarmuid Lester

Physical literacy has been previously defined as having the motivation, confidence, physical competence, understanding, knowledge, skills, and attitudes to live a physically active life ( Whitehead, 2007 ). Movement competency, an integral component of physical literacy, has been shown to be an

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Dimitrios-Sokratis Komaris, Cheral Govind, Andrew Murphy, Alistair Ewen and Philip Riches

Movement alterations and neuromuscular adaptations in activities of daily living in patients with knee osteoarthritis are well documented. Studies have reported such changes in level walking, 1 – 3 stair ascent and descent, 4 , 5 and sit-to-stand. 6 – 12 The main reason suggested for the

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Christine W. St. Laurent, Brittany Masteller and John Sirard

, 35 , 40 ). Functional movement development is a potential contributor to the various improved health outcomes of resistance training and other physical activity interventions ( 20 , 24 , 48 ). One supported definition of functional movement is the ability to move efficiently and competently in

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Andrew D. Nordin and Janet S. Dufek

Intra-individual trial-to-trial variability is inherent in human movement. 1 – 4 A variety of methods exist to examine movement variability, with greater variable inclusion and time series analyses each considered essential advances in understanding movement control. 5 , 6 Movement coordination

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Chelsea L. Kracht, Elizabeth K. Webster and Amanda E. Staiano

is still unknown. The collective influence of movement is important to understand, as these behaviors all occur within the 24-hour cycle and are interrelated (eg, screen time before bed may influence sleep duration). 6 Thus, exhibiting an adequate amount of one behavior may influence the amount of

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Kathleen M. Haywood and Kathleen Williams

This study examined tennis serving in older adult tennis players. Twenty-two older adults, divided into younger and older halves, were videotaped serving five “first” serves. Dominant shoulder flexibility also was measured. From the videotape, servers were classified into developmental levels and their resultant ball impact velocity was calculated. An Age × Gender (2 × 2) mixed model MANOVA yielded no significant differences between the age groups or between men and women in flexibility, ball impact velocity, or movement pattern. A few combinations of the developmental levels of elbow and forearm/racket action were used by the majority of servers. Regular practice might consolidate older adults in these attractor movement patterns, making them more resilient to change than with less practiced skills. These results suggest practice in older adulthood favorably affects performance by resulting in consistency of movement pattern and maintenance of movement pattern, flexibility, and ball impact speed.