ArticleJournal of neuroengineering and rehabilitation2019
The FreeD module for the Lokomat facilitates a physiological movement pattern in healthy people - a proof of concept study.
Article in Journal of neuroengineering and rehabilitation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to 2 registered trials, which are not on this map. Cited by 9 papers.
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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.
Robot-Assisted Gait Therapy in the Subacute Phase of First Ischemic Stroke
Comparison of Pelvic-Free and Pelvic-Restricted Robot-Assisted Gait Training on Walking Pattern, Balance, and Fear of Falling After Stroke
Who cites it
9 citing papers in PubMed, 28 citations in OpenAlex.
- Effects of Pelvic Motion During Robotic-Assisted Gait Training on Balance and Gait Speed in Chronic Stroke: A Randomized Controlled Trial.Medicina (Kaunas, Lithuania) · 2026Trial
- The effect of pelvic movements of a gait training system for stroke patients: a single blind, randomized, parallel study.Journal of neuroengineering and rehabilitation · 2021Trial
- Assessing the Efficacy of Lokomat Training in Pediatric Physiotherapy for Cerebral Palsy: A Progress Evaluation.Journal of clinical medicine · 2024Article
- Clustering trunk movements of children and adolescents with neurological gait disorders undergoing robot-assisted gait therapy: the functional ability determines if actuated pelvis movements are clinically useful.Journal of neuroengineering and rehabilitation · 2023Article
- Markerless motion tracking to quantify behavioral changes during robot-assisted gait training: A validation study.Frontiers in robotics and AI · 2023Article
- Increased gait variability during robot-assisted walking is accompanied by increased sensorimotor brain activity in healthy people.Journal of neuroengineering and rehabilitation · 2019Article
- New Motion Intention Acquisition Method of Lower Limb Rehabilitation Robot Based on Static Torque Sensors.Sensors (Basel, Switzerland) · 2019Article
- Correction to: The FreeD module for the Lokomat facilitates a physiological movement pattern in healthy people - a proof of concept study.Journal of neuroengineering and rehabilitation · 2019Article
- An Increase in Kinematic Freedom in the Lokomat Is Related to the Ability to Elicit a Physiological Muscle Activity Pattern: A Secondary Data Analysis Investigating Differences Between Guidance Force, Path Control, and FreeD.Frontiers in robotics and AI · 2019Article
Corrections and comments
- Erratum issued
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundA contralateral pelvic drop, a transverse rotation and a lateral translation of the pelvis are essential features of normal human gait. These motions are often restricted in robot-assisted gait devices. The optional FreeD module of the driven gait orthosis Lokomat (Hocoma AG, Switzerland) incorporates guided lateral translation and transverse rotation of the pelvis. It consequently should support weight shifting during walking. This study aimed to investigate the influence of the FreeD module on trunk kinematics and hip and trunk muscle activity.
methodsThirty- one healthy adults participated. A video analysis of their trunk movements was performed to investigate the lateral chest and pelvis displacement within the Lokomat (with and without FreeD), and this was compared to treadmill walking. Furthermore, surface electromyography (sEMG) signals from eight muscles were collected during walking in the Lokomat (with and without FreeD), on the treadmill, and overground. To compare the similarity of the sEMG patterns, Spearman's correlation analyses were applied.
resultsWalking with FreeD elicited a significantly higher lateral pelvis displacement and a lower lateral chest displacement (relative to the pelvis) compared to walking with a fixated pelvis. No significant differences in the sEMG patterns were found for the Lokomat conditions (with and without FreeD) when comparing it to treadmill or overground walking.
conclusionsThe differences in pelvis displacement act as a proof of concept of the FreeD module. The reduction of relative lateral chest movement corresponds to a decrease in compensatory trunk movements and has its origin in allowing weight shifting through the FreeD module. Both Lokomat conditions showed very similar muscle activity patterns of the trunk and hip compared to overground and treadmill walking. This indicates that the Lokomat allows a physiological muscle activity of the trunk and hip during gait.
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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.