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Effect of Motor Development Levels on Kinematic Synergies During Two-Hand Catching in Children

Marzie Balali, Shahab Parvinpour, and Mohsen Shafizadeh

coordinated manner ( Newell, 1986 ). The emergence of new movement patterns, or the refinement of existing movement patterns, is self-organized and occurs through interactions of organismic, environment, and task constraints ( Colombo-Dougovito, 2017 ). The coordination of a multitude of DoFs and the

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Goal Orientations and Perceptions of the Sport Experience

Marc R. Lochbaum and Glyn C. Roberts

Nicholas (1984a, 1984b, 1989) conceptual framework was used to study the relationship between two implicit goal orientations (task and ego) and achievement behaviors. This study examined the relationship between the goal orientations and (a) beliefs concerning determinants of success, (b) competition and practice strategies, (c) practice benefits, and (d) enjoyment. Subjects were 182 male and 114 female high school athletes who competed in at least one sport during the 1989–1990 school year. Factor analyses were conducted to determine the composition of the relevant factors. Ten factors emerged. Canonical analysis was employed to determine the relationship between goal orientations and the 10 subscales. The results, consistent with the hypotheses, showed that athletes with a task orientation focused on adaptive achievement strategies whereas athletes with an ego orientation focused on potentially maladaptive achievement strategies. The implications of the results to sport participation are discussed.

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Dual-Task Interference Slows Down Proprioception

Linjing Jiang, Satoshi Kasahara, Tomoya Ishida, Yuting Wei, Ami Chiba, Mina Samukawa, and Harukazu Tohyama

Many activities in daily life involve dual or multitasking; for example, talking while walking, cooking, or driving. When a primary task coexists along with other tasks, it requires considerable attention to simultaneously perform both the primary and the secondary tasks successfully ( Theill et

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Infants Born Preterm Demonstrate Reduced Task-Specific Exploration During the Scaffolded Kick-Activated Mobile Task

Jeong Ah Kim, Sungwoo Park, Linda Fetters, Sandrah P. Eckel, Masayoshi Kubo, and Barbara Sargent

.g., holding one hand in midline) in different postures. The present study is a secondary analysis of the spatial exploration of 4-month-old infants born PT who participated in a scaffolded kick-activated mobile task. During the scaffolded kick-activated mobile task ( Kim et al., 2021a ), 4-month-old infants born

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Effect of Single-Leg Squat Speed and Depth on Dynamic Postural Control Under Single-Task and Dual-Task Paradigms

Maria K. Talarico, Robert C. Lynall, Timothy C. Mauntel, Erin B. Wasserman, Darin A. Padua, and Jason P. Mihalik

the task to identify possible indicators for dysfunction or injury. 2 Observational deficits in dynamic postural control 7 , 8 and unfavorable lower extremity kinematics, such as greater medial knee displacement 3 , 9 – 11 and decreased ankle dorsiflexion, 12 of pathological populations while

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Sequence Learning in an Online Serial Reaction Time Task: The Effect of Task Instructions

Jaskanwaljeet Kaur and Ramesh Balasubramaniam

Sequence learning is an important aspect of human behavior enabling the organization of skills, words, memories, and events. A prominent paradigm for studying sequence learning is the serial reaction time task (SRTT), which has been utilized to study differences between introspective and

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Single- Versus Dual-Task Functional Movement Paradigms: A Biomechanical Analysis

Landon B. Lempke, Jeonghoon Oh, Rachel S. Johnson, Julianne D. Schmidt, and Robert C. Lynall

movement, performance, and injury risk. Dual-task assessments (ie, completing simultaneous cognitive and motor tasks) have been implemented to serve as a quantitative method to simulate multitasking sport performance requirements. 13 – 15 Emerging research comparing single-task (ie, solely completing a

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Effect of Auditory or Visual Working Memory Training on Dual-Task Interference

Takehide Kimura and Ryouta Matsuura

When an individual performs two tasks simultaneously, performance in either one or both tasks often decreases. This decrement in performance is defined as dual-task interference ( Ebersbach, Dimitrijevic, & Poewe, 1995 ). In our daily life, we perform various combinations of dual tasks and

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Interlimb Coordination During a Combined Gait and Prehension Task

Grace C. Bellinger, Kristen A. Pickett, and Andrea H. Mason

Walking and reaching to grasp objects are two of the most fundamental behaviors performed by humans. The complexity of these tasks becomes more evident when they are executed simultaneously, requiring considerable motor coordination to combine a discrete upper limb task with the cyclical task of

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Reliability of Postural Sway Measures of Standing Balance Tasks

Saud F. Alsubaie, Susan L. Whitney, Joseph M. Furman, Gregory F. Marchetti, Kathleen H. Sienko, and Patrick J. Sparto

. This study includes a set of tasks that are often used as a part of a balance and vestibular rehabilitation program, which distinguishes this study from previous studies that considered the reliability of a limited number of tasks. 8 , 9 This study also included tasks that incorporate head movements