000 02290nam a22004217a 4500
008 180220s20192019 xxu||||| |||| 00| 0 eng d
022 _a0022-2895
024 _a10.1080/00222895.2017.1423020 [doi]
040 _aOvid MEDLINE(R)
099 _a29384438
245 _aModular Organization of Exploratory Force Development Under Isometric Conditions in the Human Arm.
251 _aJournal of Motor Behavior. 51(1):83-99, 2019.
252 _aJ Mot Behav. 51(1):83-99, 2019.
252 _zJ Mot Behav. :1-17, 2018 Jan 31
253 _aJournal of motor behavior
260 _c2019
260 _fFY2018
260 _fFY2019
265 _sppublish
266 _d2018-02-20
268 _aJournal of Motor Behavior. :1-17, 2018 Jan 31
520 _aMuscle coordination of isometric force production can be explained by a smaller number of modules. Variability in force output, however, is higher during exploratory/transient force development phases than force maintenance phase, and it is not clear whether the same modular structure underlies both phases. In this study, eight neurologically-intact adults isometrically performed target force matches in 54 directions at hands, and electromyographic (EMG) data from eight muscles were parsed into four sequential phases. Despite the varying degree of motor complexity across phases (significant between-phase differences in EMG-force correlation, angular errors, and between-force correlations), the number/composition of motor modules were found equivalent across phases, suggesting that the CNS systematically modulated activation of the same set of motor modules throughout sequential force development.
546 _aEnglish
650 _a*Arm/ph [Physiology]
650 _a*Isometric Contraction/ph [Physiology]
650 _a*Muscle, Skeletal/ph [Physiology]
650 _a*Psychomotor Performance/ph [Physiology]
650 _aAdult
650 _aElectromyography
650 _aHumans
650 _aMale
651 _aMedStar National Rehabilitation Network
657 _aJournal Article
700 _aLee, Sang Wook
790 _aLee SW, Roh J, Wilger KD
856 _uhttps://dx.doi.org/10.1080/00222895.2017.1423020
_zhttps://dx.doi.org/10.1080/00222895.2017.1423020
942 _cART
_dArticle
999 _c3088
_d3088