“…Finally, 16 articles were selected for meta-analysis. There were 4 articles on multi-joint task (Dutta et al 2013; Krüger et al 2013; Verrel et al 2012; Xu et al 2013) and 12 articles on multi-finger task (Gorniak et al 2011; Kapur et al 2010b; Olafsdottir et al 2007a,2007b; Park et al 2011,2016; Shim et al 2004; Shinohara et al 2004; Singh et al 2013; Skm et al 2012; Solnik et al 2012; Wu et al 2013). Important information regarding the selected studies such as samples, models of synergies (kinematic/kinetic) and experimental tasks is presented in Table 1.Fig.…”
Section: Resultsmentioning
confidence: 99%
“…Modelling work indicates that rapidly changing multi-finger force production increases the NGEV that corresponds to the destabilisation of the total force (Goodman et al 2005). Additionally, it seems that the age differences in finger synergies become, to some extent, smaller when the nature of the task is more repetitive and less complex—such as simple tasks versus dual tasks (Park et al 2016).…”
PurposeThe aim of the current meta-analysis was to examine the extent to which there are differences in upper extremity motor synergies across different age groups in manipulative tasks.MethodsThe studies that used the uncontrolled manifold method to examine the effect of age on motor synergies in multi-joint and multi-finger tasks were selected. Sixteen relevant studies from 1154 articles were selected for the meta-analysis—4 and 12 studies considered multi-joint kinematics and multi-finger kinetic tasks respectively.ResultsThe results of the meta-analysis suggested reduced strength of synergies in multi-finger task in older adults, but this was not the case for synergies in multi-joint task. Part of this age-related difference in finger function is related to the increased variability in total force in grasping tasks. However, reductions in the strength of multi-finger synergies in hand functions following ageing appear to depend on the characteristics of the task.ConclusionsThese findings indicate that the cooperation among fingers to stabilise the total required force to apply for grasping and other fine motor skills is less efficient in older adults that might affect the quality of manipulative tasks.
“…Finally, 16 articles were selected for meta-analysis. There were 4 articles on multi-joint task (Dutta et al 2013; Krüger et al 2013; Verrel et al 2012; Xu et al 2013) and 12 articles on multi-finger task (Gorniak et al 2011; Kapur et al 2010b; Olafsdottir et al 2007a,2007b; Park et al 2011,2016; Shim et al 2004; Shinohara et al 2004; Singh et al 2013; Skm et al 2012; Solnik et al 2012; Wu et al 2013). Important information regarding the selected studies such as samples, models of synergies (kinematic/kinetic) and experimental tasks is presented in Table 1.Fig.…”
Section: Resultsmentioning
confidence: 99%
“…Modelling work indicates that rapidly changing multi-finger force production increases the NGEV that corresponds to the destabilisation of the total force (Goodman et al 2005). Additionally, it seems that the age differences in finger synergies become, to some extent, smaller when the nature of the task is more repetitive and less complex—such as simple tasks versus dual tasks (Park et al 2016).…”
PurposeThe aim of the current meta-analysis was to examine the extent to which there are differences in upper extremity motor synergies across different age groups in manipulative tasks.MethodsThe studies that used the uncontrolled manifold method to examine the effect of age on motor synergies in multi-joint and multi-finger tasks were selected. Sixteen relevant studies from 1154 articles were selected for the meta-analysis—4 and 12 studies considered multi-joint kinematics and multi-finger kinetic tasks respectively.ResultsThe results of the meta-analysis suggested reduced strength of synergies in multi-finger task in older adults, but this was not the case for synergies in multi-joint task. Part of this age-related difference in finger function is related to the increased variability in total force in grasping tasks. However, reductions in the strength of multi-finger synergies in hand functions following ageing appear to depend on the characteristics of the task.ConclusionsThese findings indicate that the cooperation among fingers to stabilise the total required force to apply for grasping and other fine motor skills is less efficient in older adults that might affect the quality of manipulative tasks.
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