Article
Neurosciences
Jana Kimijanova, Diana Bzduskova, Zuzana Hirjakova, Frantisek Hlavacka
Summary: This study compared the ability of young and older participants to generate anticipatory postural adjustments (APAs) in response to proprioceptive perturbation before gait initiation. Results showed that young adults actively adjusted their postural responses to altered proprioception from lower leg muscles, while older adults were unable to adapt.
FRONTIERS IN HUMAN NEUROSCIENCE
(2021)
Article
Clinical Neurology
Ali Falaki, Cristian Cuadra, Mechelle M. Lewis, Janina M. Prado-Rico, Xuemei Huang, Mark L. Latash
Summary: The aim of this study was to investigate changes in muscle synergies prior to gait initiation and the effects of gaze shift in Parkinson's disease (PD) patients. The study found that PD patients showed impaired stability of the center of pressure and decreased adjustment during gait initiation compared to the control groups. The stability indices and anticipatory synergy adjustment (ASA) may be useful for monitoring pre-clinical gait disorders and the emergence of freezing of gait in PD.
CLINICAL NEUROPHYSIOLOGY
(2023)
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
Clinical Neurology
Madli Bayot, Arnaud Delval, Caroline Moreau, Luc Defebvre, Clint Hansen, Walter Maetzler, Christian Schlenstedt
Summary: This study investigated the impact of FOG on gait initiation in PD patients. The results showed that PD+FOG patients had slower and shorter steps during gait initiation, indicating a significant influence of initial posture on gait initiation.
PARKINSONISM & RELATED DISORDERS
(2021)
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
Neurosciences
Veronica Farinelli, Francesco Bolzoni, Silvia Maria Marchese, Roberto Esposti, Paolo Cavallari
Summary: The study revealed the presence of anticipatory postural adjustments (APAs) in trunk muscles at the onset of gait initiation. This suggests that these muscles are already active before the start of walking to support the movement.
FRONTIERS IN HUMAN NEUROSCIENCE
(2021)
Article
Chemistry, Analytical
Anderson Antunes da Costa Moraes, Manuela Brito Duarte, Eduardo Veloso Ferreira, Gizele Cristina da Silva Almeida, Enzo Gabriel da Rocha Santos, Gustavo Henrique Lima Pinto, Paulo Rui de Oliveira, Cesar Ferreira Amorim, Andre dos Santos Cabral, Anselmo de Athayde Costa e Silva, Givago Silva Souza, Bianca Callegari
Summary: The study aimed to validate a mobile app for measuring anticipatory postural adjustments (APAs) during gait initiation. The results showed that the app provided accurate measurements compared to a kinematic system, indicating its usefulness as a less complex and less costly alternative for assessing healthy individuals.
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
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
Neurosciences
Arnaud Delafontaine, Paul Fourcade, Ahmed Zemouri, D. G. Diakhate, Gabriel Saiydoun, Eric Yiou
Summary: This study tested the potential of using electrical stimulation to improve gait initiation in Parkinson's disease patients, and found that 40Hz-FES significantly improved their performance without affecting balance capacity.
FRONTIERS IN HUMAN NEUROSCIENCE
(2021)
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
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
Rehabilitation
Ryo Onuma, Tadashi Masuda, Fumihiko Hoshi, Tadamitsu Matsuda, Tomoko Sakai, Atsushi Okawa, Tetsuya Jinno
Summary: This study found that patients with Parkinson's disease exhibit asymmetry between the stance leg and stepping leg at gait initiation, with separated center of pressure data showing significant differences in latency and magnitude. These findings provide insights for developing rehabilitation strategies for patients with Parkinson's disease.
PHYSIOTHERAPY THEORY AND PRACTICE
(2022)
Article
Medicine, General & Internal
Haruki Funao, Tatsuya Igawa, Masaru Matsuzawa, Norihiro Isogai, Ken Ishii
Summary: Patients with cervical myelopathy have longer APA phases and shorter step lengths, making them prone to falls.
JOURNAL OF CLINICAL MEDICINE
(2023)
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.