ArticleExperimental brain research2017
Anticipatory postural adjustments and anticipatory synergy adjustments: preparing to a postural perturbation with predictable and unpredictable direction.
Article in Experimental brain research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
43 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Antagonistic muscular co-contraction for skilled, healthy piano technique: a scoping review.Frontiers in psychology · 2025Pooled it
- Acute Ankle Sprain Management: An Umbrella Review of Systematic Reviews.Frontiers in medicine · 2022Pooled it
- Effects of first-step constraints on multi-muscle synergies and early postural adjustments during step initiation.Experimental brain research · 2026Article
- Two strategies of anticipatory mechanism during change in frequency of cyclic multi-finger force production in isometric conditions.Experimental brain research · 2026Article
- Postural Balance and Human Movement: An Integrative Framework for Mechanisms, Assessment, and Functional Implications.Journal of clinical medicine · 2026Review
- Elderly Tai Chi practitioners exhibit superior multisensory integration in a dual-task paradigm.Frontiers in human neuroscience · 2026Article
- The Effects of Dynamic Stability Training with Inertial Load of Water on Dynamic Balance and Pain in Middle-Aged Women with Chronic Low Back Pain: A Randomized Clinical Trial.Journal of functional morphology and kinesiology · 2025Article
- Effects of localized and general fatigue on postural adjustments coupling during predictable external perturbations.European journal of applied physiology · 2025Article
- Biomechanical optimization and reinforcement learning provide insight into transition from ankle to hip strategy in human postural control.Scientific reports · 2025Article
- Arm-hand BOOST (AHA-BOOST) therapy to improve recovery of the upper limb after stroke: rationale and description by means of the TIDieR checklist.Frontiers in neurology · 2025Article
- Knowledge and attitude towards ankle sprain management among primary care physicians in the department of family medicine, King Fahad Armed Forces Hospital, Jeddah, Saudi Arabia.Journal of family medicine and primary care · 2025Article
- Force drifts and matching errors in the lower extremities: implications for the control and perception of foot force.Experimental brain research · 2024Article
- Single session of direction-specific training using auditory cues improves anticipatory postural adjustments to lateral perturbations.Experimental brain research · 2024Article
- Two aspects of feed-forward control of action stability: effects of action speed and unexpected events.Experimental brain research · 2024Article
- Muscle synergies for multidirectional isometric force generation during maintenance of upright standing posture.Experimental brain research · 2024Article
- Perturbing reach elicits anticipatory responses in transport and grasp.Frontiers in human neuroscience · 2024Article
- Neural prosthesis control restores near-normative neuromechanics in standing postural control.Science robotics · 2023Article
- Cardiovascular response to anticipatory and reactionary postural perturbations in young adults.Experimental physiology · 2023Article
- Postural adjustments to self-triggered perturbations under conditions of changes in body orientation.Experimental brain research · 2023Article
- Postural adjustment in standing position when catching a ball under unpredictable conditions of the direction to be caught.Heliyon · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
We explored two aspects of feed-forward postural control, anticipatory postural adjustments (APAs) and anticipatory synergy adjustments (ASAs) seen prior to self-triggered unloading with known and unknown direction of the perturbation. In particular, we tested two main hypotheses predicting contrasting changes in APAs and ASAs. The first hypothesis predicted no major changes in ASAs. The second hypothesis predicted delayed APAs with predominance of co-contraction patterns when perturbation direction was unknown. Healthy subjects stood on the force plate and held a bar with two loads acting in the forward and backward directions. They pressed a trigger that released one of the loads causing a postural perturbation. In different series, the direction of the perturbation was either known (the same load released in all trials) or unknown (the subjects did not know which of the two loads would be released). Surface electromyograms were recorded and used to quantify APAs, synergies stabilizing center of pressure coordinate (within the uncontrolled manifold hypothesis), and ASA. APAs and ASAs were seen in all conditions. APAs were delayed, and predominance of co-contraction patterns was seen under the conditions with unpredictable direction of perturbation. In contrast, no significant changes in synergies and ASAs were seen. Overall, these results show that feed-forward control of vertical posture has two distinct components, reflected in APAs and ASAs, which show qualitatively different adjustments with changes in predictability of the direction of perturbation. These results are interpreted within the recently proposed hierarchical scheme of the synergic control of motor tasks. The observations underscore the complexity of the feed-forward postural control, which involves separate changes in salient performance variables (such as coordinate of the center of pressure) and in their stability properties.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.