Abstract：
:This study investigated the inter- and intra-lap variability in stroking parameters during sprint competition to gain insight into the race management of speed (S), stroke length (SL), stroke rate (SR) and stroke index (SI) in relation to gender. The stroking parameters of 32 male and 32 female finalists in the 2015 World Championships and French Championships were analysed during 50-m and 100-m freestyle events. Using a video-derived two-dimensional direct linear transformation system, the biological coefficients of variation (BCV) between cycles were computed for the 50-m and the two laps of the 100-m (L1100, L2100). Speed changes within each lap were modelled by linear, quadratic or cubic models. The 50-m showed higher S and SR but lower SL and SI than L1100. The 50-m exhibited greater BCV S than L1100, which showed higher S, SR, SL and SI than L2100. BCV S and BCV SL were lower in L1100 than L2100 but BCV SR was higher in L1100 than L2100. Male swimmers showed greater BCV S than female swimmers in the 50-m and L1100. For the whole population, the linear regression model was dominant in the 50-m (53.1%), L1100 (53.1%) and L2100 (43.8%). High mean speed often related to high intra-lap speed fluctuations and a linear speed decrease in the 50-m suggesting an 'all-out' pacing, while lower fluctuations occurred during the 100-m suggesting an 'economical' pacing.
journal_name
Hum Mov Scijournal_title
Human movement scienceauthors
Simbaña-Escobar D,Hellard P,Seifert Ldoi
10.1016/j.humov.2018.08.002subject
Has Abstractpub_date
2018-10-01 00:00:00pages
219-230eissn
0167-9457issn
1872-7646pii
S0167-9457(18)30016-2journal_volume
61pub_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：:In a bipedal walk, the human body experiences continuous changes in stability especially during weight loading and unloading transitions which are reported crucial to avoid fall. Prior stability assessment methods are unclear to quantify stabilities during these gait transitions due to methodological and/or measuremen...
journal_title：Human movement science
pub_type： 杂志文章
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abstract：:This study investigates the intra-individual stability of the speed of several motor tasks and the intensity of associated movements in 256 children (131 girls, 125 boys) from the Zurich generational study using the Zurich neuromotor assessment battery (ZNA) over a 12-year period from the age of 6 to 18 years. The sta...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2010.12.002
更新日期：2011-12-01 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：:Contrasted postural effects have been reported in dual-task protocols associating balance control and cognitive task that could be explained by the nature and the relative difficulty of the cognitive task and the biomechanical significance of the force platform data. To better assess their respective role, eleven heal...
journal_title：Human movement science
pub_type： 杂志文章
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abstract：:The praxis test is a less well-documented method to determine functional manifestations of childhood dyspraxia. For this study, children aged 6-8years were recruited as follows: 17 children with DCD, 18 at risk of DCD and 35 without obvious problems in motor coordination. The Movement Assessment Battery for Children (...
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.2009.12.004
更新日期：2010-06-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2006.04.004
更新日期：2006-12-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2009.09.003
更新日期：2010-02-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/s0167-9457(01)00038-0
更新日期：2001-06-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/s0167-9457(03)00045-9
更新日期：2003-08-01 00:00:00
abstract：:Tripping and falling is a serious health problem for older citizens due to the high medical costs incurred and the high mortality rates precipitated mostly by hip fractures that do not heal well. Current falls prevention technology encompasses a broad range of interventions; both passive (e.g., safer environments, hip...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2010.07.009
更新日期：2012-04-01 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.2018.04.004
更新日期：2018-06-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2018.03.007
更新日期：2018-06-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2012.05.002
更新日期：2012-12-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2007.06.003
更新日期：2007-12-01 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
abstract：:Achilles tendinopathy is the most frequent foot overuse injury in ballet dancers and knowledge of clinically modifiable factors related to tendon structure in a population at risk, such as ballet dancers, would be important for the development of preventive programs. Therefore, the present study aimed to assess relati...
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pub_type： 杂志文章
doi：10.1016/j.humov.2019.102494
更新日期：2019-10-01 00:00:00
abstract：:High-speed resistance training is used to increase power; however, momentum can reduce the effectiveness of high-speed (HS) training when using weight-stack (WS) machines. This study used a non-linear scaled wavelet analysis to assess differences between pneumatic (P) and WS during seven HS or controlled speed (CS) re...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2014.12.009
更新日期：2015-04-01 00:00:00
abstract：:Anticipatory postural adjustments (APAs) are an integral part of standing balance. Previous research with balance control has shown that adopting an external focus of attention, compared to an internal focus of attention, yields better performance during motor skills. Despite the importance of APAs, especially among o...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2019.02.019
更新日期：2019-04-01 00:00:00
abstract：:Although many studies have been focused on muscle synergies in the lower limbs, synergies of the thigh muscles during cycling have not been investigated in detail. We examined synergies of the thigh muscles including the vastus intermedius (VI) and adductor magnus (AM) while cycling. Eight healthy men pedaled at 20%, ...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2014.11.010
更新日期：2015-04-01 00:00:00
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journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.05.001
更新日期：2016-08-01 00:00:00
abstract：:Human gait has been widely investigated under dual-task conditions because it has been demonstrated to be an important way to uncover differences in gait biomechanics between older fallers and non-fallers. However, exactly how simultaneous tasks affect the kinematics of walking remains unclear. In the present study, g...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.12.004
更新日期：2017-01-01 00:00:00
abstract：:We investigated whether children's motor imagery dominance modulated the relationship between attentional focus and motor learning of a tossing task. One hundred and thirty-eight boys (age: M = 10.13, SD = 0.65) completed the Movement Imagery Questionnaire - Children (MIQ-C) to determine imagery modality dominance (ki...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2020.102742
更新日期：2021-02-01 00:00:00
abstract：:Falls are common in older adults. The most common cause of falls is tripping while walking. Simulation studies demonstrated that older adults may be restricted by lower limb strength and movement speed to regain balance after a trip. This review examines how modeling approaches can be used to determine how different m...
journal_title：Human movement science
pub_type： 杂志文章,评审
doi：10.1016/j.humov.2013.07.001
更新日期：2013-10-01 00:00:00
abstract：:Transcranial Direct Current Stimulation (tDCS) is a neuromodulatory technique that has been used as an ergogenic aid in exercise/sports performance. However, little is known about its effects on highly-trained subjects, as athletes. The present study aimed to verify the effects of bi-hemispheric anodal tDCS (a-tDCS) o...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2019.06.003
更新日期：2019-06-27 00:00:00
abstract：:Recently there has been much interest in social coordination of motor movements, or as it is referred to by some researchers, joint action. This paper reviews the cognitive perspective's common coding/mirror neuron theory of joint action, describes some of its limitations and then presents the behavioral dynamics pers...
journal_title：Human movement science
pub_type： 杂志文章,评审
doi：10.1016/j.humov.2010.05.014
更新日期：2011-10-01 00:00:00
abstract：:It was proposed that grasping is a relatively stereotyped movement pattern which can be subdivided into the components of manipulation, transport, and orientation of the hand. However, it is still a matter of debate whether these components are independent of each other. In three experiments we altered the start postu...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2009.03.001
更新日期：2009-08-01 00:00:00
abstract：:Patients with rotator cuff tear and degenerative shoulder joint disease commonly experience severe pain and reduced performance during activities of daily living. A popular way to treat these patients is by means of reverse anatomy shoulder prosthesis. Studying the kinematics of subjects with reverse anatomy implant w...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2010.08.014
更新日期：2011-12-01 00:00:00
abstract：:Prior work demonstrates that humans spontaneously synchronize their head and trunk kinematics to a broad range of driving frequencies of perceived mediolateral motion prescribed using optical flow. Using a closed-loop visuomotor error augmentation task in an immersive virtual environment, we sought to understand wheth...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2019.102525
更新日期：2019-12-01 00:00:00
