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Scapulohumeral kinematic assessment of the forward kayak stroke in experienced whitewater kayakers 总被引：1，自引：0，他引：1
Wassinger CA Myers JB Sell TC Oyama S Rubenstein EN Lephart SM 《Sports biomechanics / International Society of Biomechanics in Sports》2011,10(2):98-109
By understanding the normal humeral and scapular kinematics during the kayak stroke, inferences about the relationship of kayaking technique and shoulder injury may be established. The purpose of this study was to describe scapular and humeral kinematics and to compare dominant versus nondominant symmetry in healthy whitewater kayakers performing the forward stroke. Twenty-five competent whitewater kayakers (mean age: 34.1 +/- 9.4 years, mean height: 1.768 +/- 0.093m, mean mass: 78.2 +/- 13.0 kg) underwent humeral and scapular kinematic assessment, using an electromagnetic tracking device, while kayaking on a kayak ergometer. Paired t-tests were used to determine symmetry. Scapular and humeral kinematic means and standard deviations at six time points during the kayak stroke were described. Scapular and humeral kinematics were shown to be similar upon bilateral comparison. The greatest potential for injury during the forward stroke may be at thrust paddle shaft vertical when the humerus is maximally elevated in internal rotation and adduction as subacromial structures may be mechanically impinged. The relationship between scapulohumeral kinematics related to injury at other time points are also described. 相似文献
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William C. Smith Pablo Fraser Volha Chykina Sakiko Ikoma Joseph Levitan Jing Liu 《Globalisation, Societies & Education》2017,15(5):648-665
As national borders dissipate and technology allows different cultures and nationalities to communicate on a regular basis, more individuals are self-identifying as a global citizen. Using Social Network Analysis and multi-level modelling, this study explores factors associated with global citizen affinity and finds that education plays an important, perhaps the most important, role in individual’s affinity towards this self-identification. Results clearly indicate that more education, not national economic or social integration, is more closely associated with an individual’s positive identity as a global citizen. Additionally, the magnitude of the education effect is greater in more socially integrated societies. 相似文献
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Sakiko Oyama 《运动与健康科学(英文)》2012,1(2):80-91
There is a need for the prevention of upper extremity injuries that affect a large number of competitive baseball players. Currently available evidence alludes to three possible ways to prevent these injuries: 1) regulation of unsafe participation factors, 2) implementation of exercise intervention to modify suboptimal physical characteristics, and 3) instructional intervention to correct improper pitching techniques. Of these three strategies, instruction of proper pitching technique is under-explored as a method of injury prevention. Therefore, the purpose of this review was to explore the utility of pitching technique instruction in prevention of pitching-related upper extremity injuries by presenting evidence linking pitching technique and pitching-related upper extremity injuries, as well as identifying considerations and potential barriers in pursuing this approach to prevent injuries. Various kinematic parameters measured using laboratory-based motion capture system have been linked to excessive joint loading, and thus pitching-related upper extremity injuries. As we gain more knowledge about the influence of pitching kinematics on joint loading and injury risk, it is important to start exploring ways to modify pitching technique through instruction and feedback while considering the specific skill components to address, mode of instruction, target population, duration of program, and ways to effectively collaborate with coaches and parents. 相似文献
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Craig A. Wassinger Joseph B. Myers Timothy C. Sell Sakiko Oyama Elaine N. Rubenstein Scott M. Lephart 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(2):98-109
By understanding the normal humeral and scapular kinematics during the kayak stroke, inferences about the relationship of kayaking technique and shoulder injury may be established. The purpose of this study was to describe scapular and humeral kinematics and to compare dominant versus non-dominant symmetry in healthy whitewater kayakers performing the forward stroke. Twenty-five competent whitewater kayakers (mean age: 34.1 ± 9.4 years, mean height: 1.768 ± 0.093 m, mean mass: 78.2 ± 13.0 kg) underwent humeral and scapular kinematic assessment, using an electromagnetic tracking device, while kayaking on a kayak ergometer. Paired t-tests were used to determine symmetry. Scapular and humeral kinematic means and standard deviations at six time points during the kayak stroke were described. Scapular and humeral kinematics were shown to be similar upon bilateral comparison. The greatest potential for injury during the forward stroke may be at thrust paddle shaft vertical when the humerus is maximally elevated in internal rotation and adduction as subacromial structures may be mechanically impinged. The relationship between scapulohumeral kinematics related to injury at other time points are also described. 相似文献
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