Estimation of Human Center of Mass Position through the Inertial Sensors-Based Methods in Postural Tasks: An Accuracy Evaluation

Germanotta, Marco; Mileti, Ilaria; Conforti, Ilaria; Prete, Zaccaria Del; Aprile, Irene; Palermo, Eduardo

doi:10.3390/s21020601

Cited by 17 publications

(8 citation statements)

References 54 publications

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“…COP sway will be recorded using a force platform. Acceleration and angular velocity data gathered from the IMU placed on the lower back will be processed to estimate pelvis motion during the standing trial and quantify participants’ balance control performance [ 33 , 34 ]. Pelvis kinematics will also be evaluated through the motion capture system.…”

Section: Methodsmentioning

confidence: 99%

Experimental protocol to investigate cortical, muscular and body representation alterations in adolescents with idiopathic scoliosis

Paramento,

Rubega,

Di Marco

et al. 2023

PLoS ONE

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Background Adolescent idiopathic scoliosis (AIS) is the most common form of scoliosis. AIS is a three-dimensional morphological spinal deformity that affects approximately 1-3% of adolescents. Not all factors related to the etiology of AIS have yet been identified. Objective The primary aim of this experimental protocol is to quantitatively investigate alterations in body representation in AIS, and to quantitatively and objectively track the changes in body sensorimotor representation due to treatment. Methods Adolescent girls with a confirmed diagnosis of mild (Cobb angle: 10°-20°) or moderate (21°-35°) scoliosis as well as age and sex-matched controls will be recruited. Participants will be asked to perform a 6-min upright standing and two tasks—named target reaching and forearm bisection task. Eventually, subjects will fill in a self-report questionnaire and a computer-based test to assess body image. This evaluation will be repeated after 6 and 12 months of treatment (i.e., partial or full-time brace and physiotherapy corrective postural exercises). Results We expect that theta brain rhythm in the central brain areas, alpha brain rhythm lateralization and body representation will change over time depending on treatment and scoliosis progression as a compensatory strategy to overcome a sensorimotor dysfunction. We also expect asymmetric activation of the trunk muscle during reaching tasks and decreased postural stability in AIS. Conclusions Quantitatively assess the body representation at different time points during AIS treatment may provide new insights on the pathophysiology and etiology of scoliosis.

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Section: Methodsmentioning

confidence: 99%

Experimental protocol to investigate cortical, muscular and body representation alterations in adolescents with idiopathic scoliosis

Paramento,

Rubega,

Di Marco

et al. 2023

PLoS ONE

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“…As described in the introduction, we used a multiple IMU-system because previous studies showed that it more accurately estimates the body's CoM [13]. However, the results of this work indicate that the plantar pressure system (Insoles) was still more reliable.…”

Section: A Influence Of Sensor Systemsmentioning

confidence: 95%

“…However this might lead to a feedback in a situation in which the posture itself is stable, such as during postural transitions. Thus, we decided to use a multiple IMU system, which can more accurately estimate CoM [13]. Moreover, in dynamic situations a beneficial effect of biofeedback has only be observed when force/pressure sensors have been used [4].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Balance Instability by Wearable Sensor Systems During Postural Transitions

Hessfeld

Schulleri

Lee

2021

2021 43rd Annual International Conference of the IEEE Engineering in Medicine &Amp; Biology Society (EMBC)

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Several studies have demonstrated beneficial effects of real-time biofeedback for improving postural control. However, the application for daily activities, which also include postural transitions, is still limited. One crucial aspect is the time point of providing feedback, and thus its reliability. This might depend on the sensor system used, but also on how the threshold is defined.This study investigates which wearable sensor system and what kind of threshold is more reliable in a situation of a postural transition. To this end, we compared three sensor systems regarding their accuracy in timing in a stable and unstable Postural Transition in 16 (9 female) healthy young adults: a multiple Inertial Measurement Unit system (IMU), a pressure Insole system (IS), and a combination of both systems (COMB). Further, we contrasted two threshold parameters for each system: a Quiet Standing-based threshold (QSth) and a Limits of Stability-based threshold (LoSth).Two-way Repeated Measures ANOVAs and Wilcoxon tests (α−level : 0.05) indicated highest accuracy in the COMB LoSth, though with small differences to the IS LoSth. The LoSth showed more accurate timing than the QSth, especially in medio-lateral direction for IS and COMB.Consequently, for providing a reliable timing for a potential biofeedback applied by a wearable device in everyday life situations, such as during postural transitions, application should focus on pressure Insoles and a functional stability threshold, such as the LoS-based threshold.

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“…In addition, we will further study the relationship between action recognition analysis and objective posture evaluation. In the field of sports and technology, we will explore the use of complex and accurate sensing equipment to visualize technical actions in the field of sports and technology to solve the problem of pain points in data analysis in the field of physical training [31][32][33][34][35][36] .…”

Section: Usage Notesmentioning

confidence: 99%

A new kinematic dataset of lower limbs action for balance testing

et al. 2023

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Balance is a common performance but nevertheless an essential part of performance analysis investigations in ski. Many skier pay attention to the training of balance ability in training. Inertial Measurement Unit, as a kind of Multiplex-type human motion capture system, is widely used because of its humanized human-computer interaction design, low energy consumption and more freedom provided by the environment. The purpose of this research is to use sensor to establish a kinematics dataset of balance test tasks extracted from skis to help quantify skier’ balance ability. Perception Neuron Studio motion capture device is used in present. The dataset contains a total of 20 participants’ data (half male) of the motion and sensor data, which is collected at a 100 Hz sampling frequency. To our knowledge, this dataset is the only one that uses a BOSU ball in the balance test. We hope that this dataset will contribute to multiple fields of cross-technology integration in physical training and functional testing, including big-data analysis, sports equipment design and sports biomechanical analysis.

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Estimation of Human Center of Mass Position through the Inertial Sensors-Based Methods in Postural Tasks: An Accuracy Evaluation

Cited by 17 publications

References 54 publications

Experimental protocol to investigate cortical, muscular and body representation alterations in adolescents with idiopathic scoliosis

Experimental protocol to investigate cortical, muscular and body representation alterations in adolescents with idiopathic scoliosis

Assessment of Balance Instability by Wearable Sensor Systems During Postural Transitions

A new kinematic dataset of lower limbs action for balance testing

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