Accuracy of Force Generation and Preparatory Prefrontal Oxygenation in Ballistic Hand Power and Precision Grips
J Mot Behav. 2023 Nov 23:1-15. doi: 10.1080/00222895.2023.2283541. Online ahead of print.ABSTRACTIt remains unclear whether accurate motor performance and cortical activation differ among grasping forms across several force levels. In the present study, a ballistic target force matching task (20%, 40%, 60%, and 80% of maximum voluntary force) with power grip, side pinch, and pulp pinch was utilized to explore the accuracy of the forces generated as well as the muscular activity of intrinsic and extrinsic hand muscles. By using near-infrared spectroscopy, we also examined bilateral dorsolateral prefrontal cortex (DLPFC) act...
Source: Journal of Motor Behavior - November 24, 2023 Category: Neurology Authors: Akari Ogawa Mizuki Sakamoto Amiri Matsumoto Tetsuei Okusaki Ren Sasaya Keisuke Irie Nan Liang Source Type: research
Effects of Type II Diabetes on Proprioception during a Reach to Pinch Task
J Mot Behav. 2023 Nov 23:1-12. doi: 10.1080/00222895.2023.2285888. Online ahead of print.ABSTRACTOlder adults with type II diabetes (T2D) are at risk of developing nerve disorders that result in functional impairment. Most work in proprioceptive dysfunction in older adults with T2D has focused on functional deficits of the lower limb. The purpose of this study was to examine proprioceptive effects of T2D on the upper limb in older adults. Kinematic performance of a reach-to-pinch action toward a virtual target was assessed in a T2D group (60+ years old with T2D) and a healthy age- and sex-matched control group. Tactile and...
Source: Journal of Motor Behavior - November 24, 2023 Category: Neurology Authors: Lauren I Gulley Cox Nicholas Dias Chuan Zhang Yingchun Zhang Stacey L Gorniak Source Type: research
Accuracy of Force Generation and Preparatory Prefrontal Oxygenation in Ballistic Hand Power and Precision Grips
J Mot Behav. 2023 Nov 23:1-15. doi: 10.1080/00222895.2023.2283541. Online ahead of print.ABSTRACTIt remains unclear whether accurate motor performance and cortical activation differ among grasping forms across several force levels. In the present study, a ballistic target force matching task (20%, 40%, 60%, and 80% of maximum voluntary force) with power grip, side pinch, and pulp pinch was utilized to explore the accuracy of the forces generated as well as the muscular activity of intrinsic and extrinsic hand muscles. By using near-infrared spectroscopy, we also examined bilateral dorsolateral prefrontal cortex (DLPFC) act...
Source: Journal of Motor Behavior - November 24, 2023 Category: Neurology Authors: Akari Ogawa Mizuki Sakamoto Amiri Matsumoto Tetsuei Okusaki Ren Sasaya Keisuke Irie Nan Liang Source Type: research
Effects of Type II Diabetes on Proprioception during a Reach to Pinch Task
J Mot Behav. 2023 Nov 23:1-12. doi: 10.1080/00222895.2023.2285888. Online ahead of print.ABSTRACTOlder adults with type II diabetes (T2D) are at risk of developing nerve disorders that result in functional impairment. Most work in proprioceptive dysfunction in older adults with T2D has focused on functional deficits of the lower limb. The purpose of this study was to examine proprioceptive effects of T2D on the upper limb in older adults. Kinematic performance of a reach-to-pinch action toward a virtual target was assessed in a T2D group (60+ years old with T2D) and a healthy age- and sex-matched control group. Tactile and...
Source: Journal of Motor Behavior - November 24, 2023 Category: Neurology Authors: Lauren I Gulley Cox Nicholas Dias Chuan Zhang Yingchun Zhang Stacey L Gorniak Source Type: research
Treadmill Handrail-Use Increases the Anteroposterior Margin of Stability in Individuals' Post-Stroke
J Mot Behav. 2023 Nov 23:1-10. doi: 10.1080/00222895.2023.2285383. Online ahead of print.ABSTRACTTreadmills are important rehabilitation tools used with or without handrails. The handrails could be used to attain balance, prevent falls, and improve the walking biomechanics of stroke survivors, but it is yet unclear how the treadmill handrails impact their stability margins. Here, we investigated how 3 treadmill handrail-use conditions (no-hold, self-selected support, and light touch) impact stroke survivors' margins of stability (MoS). The anteroposterior MoS significantly increased for both legs with self-selected support...
Source: Journal of Motor Behavior - November 23, 2023 Category: Neurology Authors: Oluwaseye Odanye Emily Steffensen Erica Hinton Samuel Bierner Hao-Yuan Hsiao Brian Knarr Source Type: research
Interlimb Coordination during Double Support Phase of Gait in People with and without Stroke
This study aims to identify differences between participants with and without stroke regarding the ipsilesional and contralesional lower limbs kinematics, kinetics, muscle activity and their variability during double support phase of gait. Eleven post-stroke and thirteen healthy participants performed 10 gait trials at a self-selected speed while being monitored by an optoelectronic motion capture system, two force plates and an electromyographic system. The following outcomes were evaluated during the double support: the time and the joint position; the external mechanical work on the centre of mass; and the relative elec...
Source: Journal of Motor Behavior - November 22, 2023 Category: Neurology Authors: Ana G B Couto M ário A P Vaz Liliana Pinho Jos é Félix Juliana Moreira Francisco Pinho In ês Albuquerque Mesquita Ant ónio Mesquita Montes Carlos Crasto Andreia S P Sousa Source Type: research
Examining Learner-Controlled Role-Switching in Dyad Practice for the Learning of a Speed Cup-Stacking Task
J Mot Behav. 2023 Nov 17:1-15. doi: 10.1080/00222895.2023.2283538. Online ahead of print.ABSTRACTDyad practice has proven to be an efficient, and in some cases, a more effective method of promoting motor learning compared to individual practice. Further, providing individuals control over their own or another learner's practice environment has also been shown to be superior for skill learning relative to individuals without control. The purpose of the experiment was to assess learner-controlled role-switching in dyad practice conditions. In dyads, partners either alternated actor and observer roles on a trial-to-trial basi...
Source: Journal of Motor Behavior - November 17, 2023 Category: Neurology Authors: Molly Brillinger April Karlinsky Jae Patterson Source Type: research
Decoding the Spike-Band Subthreshold Motor Cortical Activity
J Mot Behav. 2023 Nov 14:1-23. doi: 10.1080/00222895.2023.2280263. Online ahead of print.ABSTRACTIntracortical Brain-Computer Interfaces (iBCI) use single-unit activity (SUA), multiunit activity (MUA) and local field potentials (LFP) to control neuroprosthetic devices. SUA and MUA are usually extracted from the bandpassed recording through amplitude thresholding, while subthreshold data are ignored. Here, we show that subthreshold data can actually be decoded to determine behavioral variables with test set accuracy of up to 100%. Although the utility of SUA, MUA and LFP for decoding behavioral variables has been explored p...
Source: Journal of Motor Behavior - November 15, 2023 Category: Neurology Authors: Murat Okatan Mehmet Kocat ürk Source Type: research
Effects of Different Observational Angles in Learner-Chosen Video Self-Modeling on Task Acquisition and Retention
This study aimed to examine the influence of different observational angles in video self-modeling on task acquisition and retention. We randomly assigned 42 Japanese university students to three camera-angle groups, i.e., a front-angle, a rear-angle, and a control group. The participants performed a 3 × 6 × 3 cup-stacking task with three sequential laps. The front- and rear-angle groups viewed video self-modeling created from previously self-chosen videos. The retention phase was conducted 1 week after the acquisition phase. The rear-angle group demonstrated the fastest movement times in the acquisition phase. Our findi...
Source: Journal of Motor Behavior - November 15, 2023 Category: Neurology Authors: Yuya Hiromitsu Tadao Ishikura Source Type: research
Decoding the Spike-Band Subthreshold Motor Cortical Activity
J Mot Behav. 2023 Nov 14:1-23. doi: 10.1080/00222895.2023.2280263. Online ahead of print.ABSTRACTIntracortical Brain-Computer Interfaces (iBCI) use single-unit activity (SUA), multiunit activity (MUA) and local field potentials (LFP) to control neuroprosthetic devices. SUA and MUA are usually extracted from the bandpassed recording through amplitude thresholding, while subthreshold data are ignored. Here, we show that subthreshold data can actually be decoded to determine behavioral variables with test set accuracy of up to 100%. Although the utility of SUA, MUA and LFP for decoding behavioral variables has been explored p...
Source: Journal of Motor Behavior - November 15, 2023 Category: Neurology Authors: Murat Okatan Mehmet Kocat ürk Source Type: research
Effects of Different Observational Angles in Learner-Chosen Video Self-Modeling on Task Acquisition and Retention
This study aimed to examine the influence of different observational angles in video self-modeling on task acquisition and retention. We randomly assigned 42 Japanese university students to three camera-angle groups, i.e., a front-angle, a rear-angle, and a control group. The participants performed a 3 × 6 × 3 cup-stacking task with three sequential laps. The front- and rear-angle groups viewed video self-modeling created from previously self-chosen videos. The retention phase was conducted 1 week after the acquisition phase. The rear-angle group demonstrated the fastest movement times in the acquisition phase. Our findi...
Source: Journal of Motor Behavior - November 15, 2023 Category: Neurology Authors: Yuya Hiromitsu Tadao Ishikura Source Type: research
