Abstract：
:Motion analyses of lower body mechanics offer new schemas to address injury prevention strategies among baseball pitchers, where the influence of stride length remains unknown. This study examined the temporal effect of stride length at constituent pitching events and phases. Nineteen competitive pitchers (15 collegiate, 4 high school) were randomly assigned to pitch two simulated, 80-pitch games at ±25% of their desired stride length. An integrated, three-dimensional motion capture system recorded each pitch. Paired t-tests were used to determine whether differences between stride conditions at respective events and within phases were significantly different. The results demonstrate the shorter strides mediated earlier onset of stride foot contact, reduced time in single support whereas double support intervals increased (p<.001). The opposite was observed with the longer strides. However, the acceleration phase, which comprises the highest throwing arm kinematics and kinetics, remained unchanged. The interaction between stride length, stride foot contact onsets, and time in single support is inferentially evidenced. The equivalent acceleration phases suggest stride length alone influenced time in single and double support by altering the onset of stride foot contact, which perhaps affects the mechanics in preparing the throwing arm for maximal external shoulder rotation.
journal_name
Hum Mov Scijournal_title
Human movement scienceauthors
Crotin RL,Bhan S,Ramsey DKdoi
10.1016/j.humov.2015.03.005subject
Has Abstractpub_date
2015-06-01 00:00:00pages
127-35eissn
0167-9457issn
1872-7646pii
S0167-9457(15)00047-0journal_volume
41pub_type
杂志文章abstract：BACKGROUND:This study investigated if intensive piano training may be associated with improved motor and somatosensory function. We systematically examined upper limb proprioception, which is known to play an essential role in skill movements, and motor function in young pianists. METHOD:Forty-four typically developin...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2020.102748
更新日期：2021-02-01 00:00:00
abstract：:It is currently unclear whether it is the need to maintain metabolic efficiency, the need to keep skeletal loading below critical force levels, or simple mechanical factors that drive the walk-to-run (W-R) and run-to-walk (R-W) transitions in human gait. Eighteen adults (9 males and 9 females) locomoted on an instrume...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/s0167-9457(02)00180-x
更新日期：2002-12-01 00:00:00
abstract：:A simple model of standing dives is used to investigate optimal jumping strategies from compliant surfaces and applied to springboard diving. The human model consists of a massless leg actuated by knee torque, and a lumped torso mass centered above the leg. The springboard is modeled as a mass-spring system. Maximum j...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2004.04.002
更新日期：2004-06-01 00:00:00
abstract：:In vaulting a gymnast must generate sufficient linear and angular momentum during the approach and table contact to complete the rotational requirements in the post-flight phase. This study investigated the optimization of table touchdown conditions and table contact technique for the maximization of rotation potentia...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2015.05.006
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abstract：:This experiment investigated the relationship between motivation, engagement, and learning in a video game task. Previous studies have shown increased autonomy during practice leads to superior retention of motor skills, but it is not clear why this benefit occurs. Some studies suggest this benefit arises from increas...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.08.005
更新日期：2016-10-01 00:00:00
abstract：:Co-ordinated bi-manual actions form the basis for many everyday motor skills. In this review, the internal model approach to the problem of bi-manual co-ordination is presented. Bi-manual coordinative tasks are often regarded as a hallmark of complex action. They are often associated with object manipulation, whether ...
journal_title：Human movement science
pub_type： 杂志文章,评审
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更新日期：2004-11-01 00:00:00
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journal_title：Human movement science
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2008.09.001
更新日期：2009-02-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
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journal_title：Human movement science
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更新日期：2019-12-01 00:00:00
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journal_title：Human movement science
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journal_title：Human movement science
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doi：10.1016/j.humov.2018.11.014
更新日期：2019-02-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
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更新日期：2016-08-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2020.102688
更新日期：2020-12-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.humov.2008.03.006
更新日期：2008-10-01 00:00:00
abstract：:Using dynamical modeling tools, the aim of the study was to establish a minimal model reproducing leg movements in cross-country skiing, and to evaluate the eventual adjustments of this model with fatigue. The participants (N=8) skied on a treadmill at 90% of their maximal oxygen consumption, up to exhaustion, using t...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2010.03.001
更新日期：2010-08-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章,评审
doi：10.1016/j.humov.2018.02.008
更新日期：2018-04-01 00:00:00
abstract：INTRODUCTION:The present study investigated the effect of stretchable characteristics of elastic therapeutic tape and its elongation on surface electromyography (EMG) of knee extensor muscles during knee extension movements. METHODS:Nine healthy men performed knee extension movement with the application of normal elas...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2018.12.003
更新日期：2019-02-01 00:00:00
abstract：:Spatial-temporal parameters (velocity, stroke rate, stroke length) and arm-leg coordination in the butterfly stroke were studied as a function of race pace, skill (due to technical level, age, and experience) and gender. Forty swimmers (ten elite men, ten elite women, ten less-skilled men, and ten less-skilled women) ...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2007.08.001
更新日期：2008-02-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2013.04.003
更新日期：2013-08-01 00:00:00
abstract：:Humans will naturally synchronize their posture to the motion of a visual surround, but it is unclear if this visuomotor entrainment can be attenuated with an increased sensitivity to somatosensory information. Sub-threshold vibratory noise applied to the Achilles tendons has proven to enhance ankle proprioception thr...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2019.06.009
更新日期：2019-06-28 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2017.08.004
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2015.12.004
更新日期：2016-04-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2020.102651
更新日期：2020-08-01 00:00:00
abstract：OBJECTIVE:To compare the parameters of gait kinematics of older adults with cognitive impairment who live in community dwellings or those living or spending most of the time in non-family environment settings. METHODS:The sample was composed of 33 older adults of both sexes with cognitive impairment. Participants were...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2020.102747
更新日期：2021-02-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2014.03.013
更新日期：2014-06-01 00:00:00
abstract：:Three-dimensional gait analysis is the gold standard for gait-assessment in patients with stroke. This technique is commonly used to assess the effect of treatment on gait parameters. In clinical practice, three gait analyses are usually carried out (baseline, after treatment and follow-up), the objectives were to def...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2019.01.011
更新日期：2019-04-01 00:00:00
abstract：:Perceptual-motor calibration has been described as a mapping between perception and action, which is relevant to distinguish possible from impossible opportunities for action. To avoid movement errors, it is relevant to rapidly calibrate to immediate changes in capabilities and therefore this study sought to explain i...
journal_title：Human movement science
pub_type： 杂志文章,评审
doi：10.1016/j.humov.2016.11.004
更新日期：2017-01-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2005.10.003
更新日期：2005-10-01 00:00:00
abstract：:This review describes a novel view on stages in motor learning based on recent developments of the notion of synergies, the uncontrolled manifold hypothesis, and the equilibrium-point hypothesis (referent configuration) that allow to merge these notions into a single scheme of motor control. The principle of abundance...
journal_title：Human movement science
pub_type： 杂志文章,评审
doi：10.1016/j.humov.2009.11.002
更新日期：2010-10-01 00:00:00
