06/07/2023
"This suggests that when planning the robot actions, a trade off between these two concurring aspects needs to be considered, as this may leave the subject the possibility to act as free is possible" (Ranaldi, Bibbo et al, 2023)
Modalities of sequential human robot collaboration trigger different modifications of trunk oscillations
IntroductionHuman robot collaboration is quickly gaining importance in the robotics and ergonomics fields due to its ability to reduce biomechanical risk on the human operator while increasing task efficiency. The performance of the collaboration is typically managed by the introduction of complex a...
05/07/2023
"From a neurophysiological standpoint, this implies that the motor modules involved in the sit-to-stand movement are able to control also the opposite movement, determining a common basis to manage the center of mass movement against gravity" (Ranaldi et al, 2023)
Optimal Identification of Muscle Synergies From Typical Sit-to-Stand Clinical Tests
Goal: The goal of this manuscript is to investigate the optimal methods for extracting muscle synergies from a sit-to-stand test; in particular, the performance in identifying the modular structures...
12/09/2022
"The model was also able to display a higher resilience of the system to treat the hospitalised subjects, with a modification of the shares of patients needing intensive care, and a smaller share of patients in ordinary wards who would have not recovered." (Pacetti et al, 2022)
Use of a modified SIR-V model to quantify the effect of vaccination strategies on hospital demand during the Covid-19 pandemic
A novel compartmental model that includes vaccination strategy, permanence in hospital wards and tracing of infected individuals has been implemented to forecast hospital overload caused by COVID-19 pandemics in Italy. The model parameters were calibrated according to available data on cases, hospit...
12/09/2022
"...proposing a novel discrepancy index (VPDI) for the automatic quality assessment of both sample volume length and registration accuracy." (Fiori et al, 2022)
A preliminary study on a novel approach to the assessment of the sample volume length and registration accuracy in PW Doppler quality control
Sample volume (SV) in PW Doppler is usually characterized by two main factors, i.e., sample volume size and range gate registration accuracy, which have been included among the recommended Quality Control (QC) Doppler tests commonly proposed in the literature. However, most of the studies focusing o...
12/09/2022
"...supporting the idea of using this compact representation of sEMG activity as a physiologically-based feature extractor for any myocontroller..." (Ranaldi et al, 2022)
Classifying reaching height through muscle synergies in unconstrained scenarios
Muscle synergy analysis has been widely adopted in the literature for the analysis of upper limb surface electromyographic signals during reaching tasks and for the prediction of movement direction for myoelectric control purposes. However, previous studies have characterized movements in constraine...
25/08/2022
"...it is possible to quantitatively assess the risk level when monitoring fatiguing lifting tasks by using CoP parameters. They extend the possibilities offered by the currently available instrumental-based tools for biomechanical risk classification" (D'Anna et al, 2022)
Centre of pressure parameters for the assessment of biomechanical risk in fatiguing frequency-dependent lifting activities
Lifting tasks, among manual material handling activities, are those mainly associated with low back pain. In recent years, several instrumental-based tools were developed to quantitatively assess the biomechanical risk during lifting activities. In this study, parameters related to balance and extra...
25/08/2022
"In general, by increasing the time duration, and thus increasing the frequency resolution, improvements are produced in precision of the estimation, while increasing the SNR produces improvements in the accuracy of the estimates" (Corvini and Conforto, 2022)
A Simulation Study to Assess the Factors of Influence on Mean and Median Frequency of sEMG Signals during Muscle Fatigue
Mean and Median frequency are typically used for detecting and monitoring muscle fatigue. These parameters are extracted from power spectral density whose estimate can be obtained by several techniques, each one characterized by advantages and disadvantages. Previous works studied how the implementa...
29/05/2022
BioLab³ heading outbounds, and outdoors!
Il ricercatore Daniele Bibbo a Viterbo per test sui velocisti dell'Alto Lazio
Il Campo Scuola di Viterbo è stato teatro di un importante incontro tecnico che ha visto la presenza di Daniele Bibbo, ricercatore in Ingegneria Biomedica presso il DIIEM - Dipartimento di Ingegneria Industriale Elettronica e Meccanica – Università degli Studi Roma Tre, della neo laureanda Maria...
28/05/2022
"the adoption of accurate and optimal amplitude-estimation algorithms might ensure that this information is captured in a stable manner even if no ad hoc very steep and narrow low-pass filters are adopted. (Ranaldi et al. 2022)
The Influence of the sEMG Amplitude Estimation Technique on the EMG–Force Relationship
The estimation of the sEMG–force relationship is an open problem in the scientific literature; current methods show different limitations and can achieve good performance only on limited scenarios, failing to identify a general solution to the optimization of this kind of analysis. In this wor...
25/08/2022
25/08/2022
29/05/2022
28/05/2022
16/03/2022
29/01/2022
24/01/2022