Article
Neurosciences
Yannick Mullie, Trevor Drew
Summary: The pallidum plays a crucial role in the control of posture and movement. Different cells in the pallidum show distinct activity patterns during different phases of reaching tasks and with different limbs, indicating contextual-dependent control of movement and posture.
JOURNAL OF NEUROSCIENCE
(2022)
Article
Physiology
Enrico De Martino, Sauro E. Salomoni, Paul W. Hodges, Julie Hides, Kirsty Lindsay, Dorothee Debuse, Andrew Winnard, James Elliott, Mark Hoggarth, David Beard, Jonathan A. Cook, Robert Ekman, Luis Hinterwaldner, Jonathan Scott, Tobias Weber, Nick Caplan
Summary: This study investigated the effect of artificial gravity on the deterioration of standing balance and anticipatory postural adjustments of trunk muscles induced by 60-day head-down tilt bed rest. The results showed that artificial gravity partially mitigated the deterioration in standing balance, but did not have a protective effect on trunk muscle responses.
JOURNAL OF APPLIED PHYSIOLOGY
(2021)
Article
Virology
Gizele Cristina Da Silva Almeida, Helio Resque Azevedo, Kelly Helorany Alves Costa, Alex Tadeu Viana da Cruz Junior, Daniela Rosa Garcez, Givago da Silva Souza, Bianca Callegari
Summary: HTLV-1 infected patients exhibit delayed lower limb muscle onset and center of pressure displacement compared to controls, with poorer anticipatory postural adjustments and greater difficulty recovering postural control during the compensatory phase.
Article
Neurosciences
Angel L. Phanthanourak, Allan L. Adkin, Mark G. Carpenter, Craig D. Tokuno
Summary: The ability to scale anticipatory postural adjustments (APAs) according to the predicted size of the upcoming movement is reduced with aging. However, an altered emotional state, as elicited through postural threat, only minimally alters the scaling of APAs.
FRONTIERS IN HUMAN NEUROSCIENCE
(2023)
Article
Rehabilitation
Ryo ONUMA, Tadashi MASUDA, Fumihiko HOSHI, Tadamitsu MATSUDA, Tomoko SAKAI, Atsushi OKAWA, Tetsuya JINNO
Summary: This study aimed to investigate reduced anticipatory postural adjustments during gait initiation in post-stroke hemiplegic patients through measuring the center of pressure. The results showed that the latency and magnitude of center of pressure displacement peak for the paretic leg were significantly different compared to controls, and correlated with clinical measures of motor dysfunction and postural balance.
JOURNAL OF REHABILITATION MEDICINE
(2021)
Article
Biophysics
Yuri Russo, Giuseppe Vannozzi
Summary: The study investigates the effects of stepping direction and footwear on anticipatory postural adjustments (APAs) prior to forward and backward stepping. Results show that the direction of the step mainly affects APAs along the anteroposterior direction, while footwear mainly affects APAs in the mediolateral direction. Regardless of these factors, the medio-lateral strategy remains consistent, emphasizing the priority of balance control over motor performance.
JOURNAL OF BIOMECHANICS
(2021)
Article
Multidisciplinary Sciences
Anderson Antunes da Costa Moraes, Manuela Brito Duarte, Eduardo Veloso Ferreira, Gizele Cristina da Silva Almeida, Andre dos Santos Cabral, Anselmo de Athayde Costa e Silva, Daniela Rosa Garcez, Givago Silva Souza, Bianca Callegari
Summary: This study aims to validate the performance of an ultra-light sensor in measuring anticipatory postural adjustments (APAs) during step initiation, compared to a smartphone and a kinematic system. The results show that the temporal measurements obtained from the sensor and smartphone have high correlation with the kinematic system. However, caution should be exercised when using the ultra-light sensor for amplitude measurements, as further research is needed.
Article
Multidisciplinary Sciences
Changcheng Wu, Qingqing Cao, Fei Fei, Dehua Yang, Baoguo Xu, Guanglie Zhang, Hong Zeng, Aiguo Song
Summary: This study introduces a method based on analysis of variance and generalized regression neural network for optimizing measurement positions and features in grasp force estimation to improve accuracy. The experiment identifies the optimal combination of measurement positions and features, providing important insights for future prosthetic hand control.
Article
Chemistry, Analytical
Renon Doine, Takanori Sakamaki
Summary: Fatigue caused by ship motion in crew members can lead to marine accidents. This study aimed to clarify the influence of anticipatory postural adjustments (APAs) based on visual information on human standing posture control. The participants stabilized their standing posture and controlled their center of pressure (COP) through APAs, indicating the ability to predict ship motion from wave images.
Article
Physiology
Roberto Esposti, Silvia M. Marchese, Veronica Farinelli, Francesco Bolzoni, Paolo Cavallari
Summary: Evidence suggests that the parietal operculum (PO) does not participate in the control of intra-limb Anticipatory Postural Adjustments (APAs), indicating that the search for an area processing motor commands to prime mover and postural muscles together will need to focus on other structures.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Neurosciences
Siddharth Bhardwaj, Vikram Negi, Vineet Vashista
Summary: This study investigated the reliability of vibratory cues in generating APAs in healthy individuals in the absence of vision. The results showed that participants were able to generate significant APAs relying solely on vibratory cue, indicating the potential for using vibratory cues in interventions.
EXPERIMENTAL BRAIN RESEARCH
(2022)
Article
Neurosciences
Daniel Tanis, Jan A. Calalo, Joshua G. A. Cashaback, Isaac L. Kurtzer
Summary: The timing of motor commands is crucial for task performance, but the reasons for asynchronous motor commands remain unclear. Using optimal control, this study found that considering both accuracy and effort leads to body commands preceding limb commands. This finding is important for understanding motor timing and provides new directions for future research.
JOURNAL OF NEUROPHYSIOLOGY
(2023)
Article
Neurosciences
Jana Seuthe, Nicholas D'Cruz, Pieter Ginis, Rebecca Blobaum, Burkhard Weisser, Gunther Deuschl, Alice Nieuwboer, Christian Schlenstedt
Summary: The study showed that reliability of gait initiation varies across outcomes but is similar for healthy elderly and individuals with Parkinson's disease with Freezing of Gait, under single and dual task conditions. Anticipatory postural adjustments and first step range of motion are the most reliable outcomes, while APA duration and latency are the least reliable. Future studies should consider conducting multiple trials of gait initiation depending on the specific outcome of interest to improve reliability.
Article
Chemistry, Multidisciplinary
Jiunn-Woei Liaw, Rou-Shayn Chen, Vincent Chiun-Fan Chen, Yan-Ru Wang, Hsiao-Lung Chan, Ya-Ju Chang
Summary: Measuring APAs through a proactive balance paradigm is found to be a feasible approach with adequate to good reliability; the study demonstrated the detectability of APAs in proactive balance tests; the use of a Wii balance board for the test program is feasible and applicable in both clinical and home settings.
APPLIED SCIENCES-BASEL
(2021)
Article
Physics, Fluids & Plasmas
Qi-Rong Lin, Po-Yu Chou, C. K. Chan
Summary: Through experiments on retinas, it has been found that the retina is capable of anticipating based on the synergistic information generation between x and x, indicating that illusions such as the anticipation studied during retinal perception may originate from the recombination of information extracted in the retinal network.
Article
Clinical Neurology
Jaakko Vallinoja, Timo Nurmi, Julia Jaatela, Vincent Wens, Mathieu Bourguignon, Helena Maenpaa, Harri Piitulainen
Summary: The study aimed to assess the effects of lesions related to spastic diplegic cerebral palsy on functional connectivity. Using multiple imaging modalities, the researchers found enhanced functional connectivity in the sensorimotor network of individuals with spastic diplegic cerebral palsy, which was not correlated with hand coordination performance.
CLINICAL NEUROPHYSIOLOGY
(2024)
Article
Clinical Neurology
Francesca Ginatempo, Nicola Loi, John C. Rothwell, Franca Deriu
Summary: This study comprehensively investigated sensorimotor integration in the cranial-cervical muscles of healthy adults and found that the integration of sensory inputs with motor output is profoundly influenced by the type of sensory afferent involved and the functional role played by the target muscle.
CLINICAL NEUROPHYSIOLOGY
(2024)