Δημοσιεύσεις

  1. Patenidis, A. T., Mitsopoulou, E. E., Votis, K., & Tzovaras, D. (2022, September). ISOMETRIC: An Intelligent System of Outpatient Monitoring Evaluation Towards Rehabilitation In Cloud. In 2022 7th South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media Conference (SEEDA-CECNSM) (pp. 1-5). IEEE, doi: https://doi.org/10.1109/SEEDA-CECNSM57760.2022.9932975.
    • Abstract: Gait analysis is a methodical study of how people move that can be applied to a range of settings, including sports, rehabilitation and clinical diagnosis. This paper describes a system for tracking the kinetic rehabilitation of hemiplegic patients with a combined use of gait analysis system and wearable devices. The concept is focused on training and extracting individualized knowledge from an intelligent information system during the patient’s stay in the rehabilitation facility. This knowledge can be utilized so that the patient may self-manage their rehabilitation regimen and monitor the improvement of their condition in their own place. Medical experts will then be able to monitor patients’ progress through a cloud-based platform.
    • URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9932975&isnumber=9932894
  2. Dimopoulos, D., Kalogirou, E., Varvarousis, D. N., Nakos, V., Manolis, I., Boughariou, M. H., … & Ploumis, A. (2022, September). Variations of pressure data from insoles in normal population during the 10meter walking test and an appropriate parameters’ extraction algorithm: a pilot study. In 2022 7th South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media Conference (SEEDA-CECNSM) (pp. 1-6). IEEE, doi: https://doi.org/10.1109/SEEDA-CECNSM57760.2022.9932942.
    • Abstract: Our objective was to explore variations of pressure data from insole pressure sensors after a walking session and to produce an algorithm which extracts spatiotemporal gait parameters in close real time. In this study we performed a 10-meter stand up and walking test on 25 normal individuals. All subjects were walking at their comfortable speed during the test. The subjects were wearing in-soles equipped with 9 pressure sensors on each foot (the W-inshoe system by Medicapteurs). The W-inshoe system is simple, relatively cheap and reliable. System’s software is quite outdated, has multiple bugs and does not produce the appropriate numerical gait parameters, so we developed an algorithm to process the raw data from the insoles using MATLAB. The developed algorithm can successfully process the pressure data, remove noise, and produce the appropriate gait parameters accurately. Using the algorithm on our sampling pool, we procured the following results: Average peak pressure range was 644 to 1555 gram force (average: 1000gf, average stance period range was 0.64 to 0.85 seconds (average: 0. 76s) and double support period range was 0.17 to 22s (average: 0. 18s). Even though there were only 9 sensors in every insole, the data were sufficient to develop the algorithm. In the future, the algorithm could be used on a cloud-based application to extract pressure and spatiotemporal gait parameters from a simple and reliable insole system.
    • URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9932942&isnumber=9932894
  3. Varvarousis, D. N., Martzivanou, C., Dimopoulos, D., Dimakopoulos, G., Vasileiadis, G. I., & Ploumis, A. (2021). The effectiveness of botulinum toxin on spasticity and gait of hemiplegic patients after stroke: A systematic review and meta-analysis. Toxicon, 203, 74-84, doi: https://doi.org/10.1016/j.toxicon.2021.09.020.
    • Abstract: The aim of the study is to evaluate the evidence supporting the efficacy of botulinum toxin type A (BTA) injections in lower limb of hemiplegic patients, after stroke or cerebrovascular accident, and their gait analysis. This study included: randomized controlled trials (RCTs), non-randomized or controlled clinical trials (CCTs) or cluster trials, clinical trials of various phases (I-III), interrupted time series (ITS) studies with at least three data points before and after the intervention, controlled before and after (CBA) studies, prospective and retrospective comparative cohort studies, case-control and multicentred studies. The patients included in these studies had similar characteristics: age over 18 years, history of stroke and following hemiplegia, minimum modified Ashworth scale (MAS) score of 2 and duration since stroke over 6 months. The number of studies included in this review was 21. A meta-analysis was performed on a fraction of them depending on the reported index and the methodology as reported in detail in the results section. MAS score, following BTA injections, was significantly improved (Hedges’ g: −1.17; 95% CI: −1.66, 0.67; p < 0.001). The same applied for the 10 Meter Walk Test (MWT) (−0.35; 95% CI: −0.68, −0.02; p = 0.016). The gait velocity showed improvement, yet without statistical significance (0.27; 95% CI: −0.09, 0.63; p = 0.285). We concluded that botulinum toxin injections showed effectiveness on lower limb hypertonia reduction of hemiplegic patients after stroke. Apart from significantly reducing the MAS scores, 10 MWT was also improved. However, more research is required in order to determine the advancement in specific gait and posture parameters.
    • URL: https://www.sciencedirect.com/science/article/pii/S0041010121002701