Impaired Object Handling during Bimanual Task Performance in Multiple Sclerosis

Gorniak, Stacey L.; Plow, Matthew; McDaniel, Corey; Alberts, Jay L.

doi:10.1155/2014/450420

Cited by 10 publications

(6 citation statements)

References 30 publications

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“…For example, MS patients show unusually high grip force magnitudes when manipulating a hand-held object (Iyengar et al 2009) associated with an increase in grip force variability (Marwaha et al 2006). Such tasks are also associated with poor coordination of the grip and manipulation forces seen in both unimanual (Krishnan and Jaric 2008; Krishnan et al 2008) and bimanual tasks (Gorniak et al 2014). …”

Section: Introductionmentioning

confidence: 99%

Changes in Multidigit Synergies and Their Feed-Forward Adjustments in Multiple Sclerosis

Mattos

Lucassen

et al. 2016

Journal of Motor Behavior

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We explored the changes in multi-digit synergies in patients with multiple sclerosis (MS) within the framework of the uncontrolled manifold hypothesis. Our specific hypotheses were that both synergy indices and anticipatory synergy adjustments prior to the initiation of a self-paced quick action would be diminished in the patients compared to age-matched controls. The MS patients and age-matched controls (n = 13 in both groups) performed one-finger and multi-finger force production tasks involving both accurate steady-state force production and quick force pulses. The patients showed significantly lower maximal finger forces and a tendency toward slower force pulses. Enslaving was increased in MS, but only in the “lateral” fingers (index and little). Indices of multi-finger synergies during steady-state force production were lower in MS, mainly due to the lower amount of inter-trial variance that did not affect total force. Anticipatory synergy adjustments were significantly delayed in MS. Our results show that MS leads to significant changes in multi-digit synergies and feed-forward adjustments of the synergies prior to a quick action. We discuss possible contributions of subcortical structures to the impaired synergic control.

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Section: Introductionmentioning

confidence: 99%

Changes in Multidigit Synergies and Their Feed-Forward Adjustments in Multiple Sclerosis

Mattos

Lucassen

et al. 2016

Journal of Motor Behavior

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“…The bimanual coordination of persons without neuromuscular diseases (Gorniak, Plow, McDaniel, & Alberts, 2014) is well organized, and appropriate coordination of applied fingertip forces proves to be an easy task (Flanagan & Burstedt, 1999;Johannson & Cole, 1994;Parikh & Cole, 2012). However, motor control strategies differ greatly among individuals, and various sensorimotor strategies can exist across participants (Latash, Scholz, & Scho¨ner, 2002).…”

Section: Discussionmentioning

confidence: 99%

Human–Human Handover Tasks and How Distance and Object Mass Matter

et al. 2016

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We investigated the coordination between two individuals during object handovers. Ten participants (eight males, two females; 26.0 ± 5.0 years, 72.7 ± 13.5 kg, 1.73 ± 0.8 m) arranged in pairs (a giver and a receiver), passed an object from the giver to the receiver at a self-selected speed. A motion capture system quantified the giver and the receiver's motion simultaneously. Three interpersonal distances and three object masses were chosen to study the handover. We hypothesized that (a) the handover occurs at half of the interpersonal distance between the giver and receiver and (b) the handover height depends on the objects' mass. Taken together, our results show that the handover strongly depends on the interpersonal distance between the giver and receiver, while object mass related only to handover duration.

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“…Many ADLs require both hands to work in coordination, performing tasks involving the use of objects and tools. Activities such as eating, bathing, grooming, and various household chores often require the use of both hands to manipulate objects, utensils, or tools effectively (5). It is essential to consider the challenges that individuals with PD may face in performing these activities.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effects of Bimanual Activities with and Without Motivational Strategies on Participation and Upper Extremity Function in Subjects with Parkinson's Disease: Study Protocol for a Randomized Controlled Trial

Azad,

Taghizadeh,

Akbarfahimi

et al. 2024

Middle East J Rehabil Health Stud

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Background: Parkinson's disease (PD) is a neurodegenerative disorder characterized by motor and non-motor symptoms that can impact daily activities. Objectives: Activity-based interventions, particularly when combined with motivational strategies, may enhance upper extremity function and participation in people with PD. Methods: This study will include forty-five patients with PD aged 35 to 85 years, categorized as stages I to III according to the Hoehn and Yahr Scale. Patients will be recruited from neurological and rehabilitation centers and randomly assigned to one of three intervention groups: Activity-based interventions with motivational strategy, activity-based interventions without motivational strategy, and conventional interventions. All participants will undergo a 24-session intervention, three times a week. The study will assess various outcomes at multiple time points, including baseline, session 10, session 18, post-intervention (week 9), and follow-up (week 17). Primary outcome measures will focus on motor control of the upper extremity and participation, while secondary outcome measures will include cognitive function and quality of life. Results: This proposed randomized controlled trial (RCT) aims to investigate the potential beneficial effects of activity-based interventions, combined with motivational strategies, on upper extremity function and participation in activities of daily living (ADLs) for individuals with PD. Conclusions: The expected outcome of this study is to provide valuable insights that can assist occupational therapists in making informed decisions regarding intervention plans for people with PD.

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Impaired Object Handling during Bimanual Task Performance in Multiple Sclerosis

Cited by 10 publications

References 30 publications

Changes in Multidigit Synergies and Their Feed-Forward Adjustments in Multiple Sclerosis

Changes in Multidigit Synergies and Their Feed-Forward Adjustments in Multiple Sclerosis

Human–Human Handover Tasks and How Distance and Object Mass Matter

Evaluating the Effects of Bimanual Activities with and Without Motivational Strategies on Participation and Upper Extremity Function in Subjects with Parkinson's Disease: Study Protocol for a Randomized Controlled Trial

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