Danilo Catelli

University of Ottawa · Department of Health Sciences

Most musculoskeletal models (MSKM) are designed to evaluate gait and running, which have limited range of motion (ROM). The purpose of this study was to examine the effect of wrapping surfaces (WS) at the knee and hip joints in a MSKM, on the muscle moment arms (MA) and activations during squatting. The MSKM was then customized by changing paramete...

Background: The purpose of this study was to compare muscle forces and hip contact forces (HCFs) during squatting in patients with cam-type femoroacetabular impingement (cam-FAI) before and after hip corrective surgery and with healthy control participants. Methods: Ten symptomatic male patients with cam-FAI performed deep squatting preoperative...

This paper presents Batch OpenSim Processing Scripts (BOPS), a Matlab toolbox for batch processing common OpenSim procedures: Inverse Kinematics, Inverse Dynamics, Muscle Analysis, Static Optimization, and Joint Reaction Analysis. BOPS is an easy-to-use and highly configurable tool that aims to reduce the time required to process large datasets, th...

Background Osteochondroplasty for cam femoroacetabular impingement is a common treatment to improve hip function and prevent joint degeneration. The purpose was to compare in-silico hip biomechanics during stair tasks in pre- and postoperative patients matched with healthy controls. Methods Ten symptomatic cam femoroacetabular impingement patients...

Cam morphology is defined as an aspherical femoral head-neck junction that causes abnormal contact of the acetabular rim with the anterior hip. Imaging confirmation of the cam morphology, associated with clinical signs and pain in the hip or groin, is characterized as femoroacetabular impingement (FAI) syndrome. Although some individuals with cam m...

Background Spinopelvic stiffness (primarily in the sagittal plane) has been identified as a factor associated with inferior patient-reported outcomes (PROs) and increased dislocation risk after THA. Incorporating preoperative spinopelvic characteristics into surgical planning has been suggested to determine a patient-specific cup orientation that m...

The importance of Fetal Movement (FM) patterns as a biomarker for fetal health has been extensively argued in obstetrics. However, the inability of current FM monitoring methods, such as ultrasonography, to be used outside clinical environments has made it challenging to understand the nature and evolution of FM. A small body of work has introduced...

Femoroacetabular impingement syndrome (FAIS) with cam-type morphology is prevalent among young athletic males. Evidence suggests that FAIS is a leading factor in the development of hip OA. The purpose of this work is to present the biomechanical trends in FAIS, reporting on the prevalence, symptoms, hip morphology variability, and motion analysis i...

Background: Progressive tendon loading programs for patellar tendinopathy typically include single-leg squats with heavy weights either on level ground or on a decline board. Changes in patellar tendon force due to variations of the heavy load single-leg squat have not yet been objectively quantified. The objective of this study was to investigate...

This study evaluated gait variability in patients before and after total knee arthroplasty (TKA) using the equality of variance method to determine where variability differences occur in the movement cycle. Twenty-eight patients underwent TKA with cruciate-sacrificed implants. Patients underwent motion analysis which measured knee biomechanics as t...

Knee osteoarthritis (OA) is a public health problem affecting millions of people worldwide. The intensity of the tibiofemoral contact forces is related to cartilage degeneration, and so is the importance of quantifying joint loads during daily activities. Although simulation with musculoskeletal models has been used to calculate joint loads, it dem...

The choice of musculoskeletal (MSK) model is crucial for performing MSK estimations to evaluate muscle demands and joint forces. This study compared two previously published generic MSK models and a modified model to estimate tibiofemoral reaction forces (TFRF) during gait, sit-to-stand, and stand-to-sit. The estimated tibiofemoral reaction forces...

Purpose: Patellofemoral pain syndrome and patellar tendinopathy are important running-related overuse injuries. This study investigated the interaction of running speed and step frequency alterations on peak and cumulative patellofemoral joint stress (PFJS) and patellar tendon force (PTF) parameters. Methods: Twelve healthy individuals completed...

BACKGROUND: Successful performance in futsal depends on athletes' ability to change direction efficiently. AIM: To investigate the effect of athletic background on COM kinematics during sidestep cutting maneuvers performed at different cutting angles towards both sides. METHOD: Eighteen futsal athletes participated, comprised of nine high-level tra...

Different measurements of foot morphological characteristics can effectively predict foot muscle strength. However, it is still uncertain if structural and postural alterations leading to foot pronation could be compensated with more efficient function of the intrinsic foot muscles and how mobility and strength are associated. Additionally, the rel...

This study investigated the effect of a handball-specific fatigue protocol on hip and knee kinematics. Twenty female handball athletes performed three trials of the single-leg landing (SLL), sidestep cutting manoeuvre (SCM), and drop vertical jump (DVJ) before and after the fatigue protocol. Knee and hip angle waveforms were compared using statisti...

Background To estimate gait variability, several methods have been routinely used which provide a measure of global variability. A recent study introduced a group waveform variability method which provides a point-by-point measurement of data variance equality. This can identify where in the gait cycle the significant differences in variability exi...

Abnormal spinopelvic movements are associated with inferior outcomes following total hip arthroplasty (THA). This study aims to (1) characterize the agreement between dynamic motion and radiographic sagittal assessments of the spine, pelvis, and hip; (2) determine the effect of hip osteoarthritis (OA) on kinematics by comparing healthy individuals...

Electromyography (EMG) onsets determined by computerized detection methods have been compared against the onsets selected by experts through visual inspection. However, with this type of approach, the true onset remains unknown, making it impossible to determine if computerized detection methods are better than visual detection (VD) as they can onl...

Various methods have been suggested for estimating the variability in biomechanical variables during gait. However, all current measures of variability are performed on discrete measurements extracted from the kinematic or kinetic waveforms, which provide no temporal information on where differences in variability occur. This study used a variance...

Introduction: Futsal is characterized by a sport with a high incidence of knee injuries, especially during sidestep cutting maneuvers. Different functional tasks have been used to describe knee injury mechanisms; however, laboratory tasks must emulate the tasks performed during sports to allow for testing to be ecologically related to actual sports...

The purpose of this study was to investigate the effect of fatigue in knee biomechanics in female handball athletes during the sidestep cutting and single-leg landing. Twenty female handball athletes participated in this study. The fatigue protocol was composed of specific handball movements/actions. The participants performed three trials of the s...

Most of musculoskeletal models (MSKM) estimate the tibiofemoral joint reaction load at a single point or do not support large lower-limb ranges. This study aimed to adapt a generic MSKM that allows large knee and hip flexions to compute medial and lateral tibiofemoral contact forces (TFCF) during gait and squat tasks. The updated model includes med...

Musculoskeletal models provide a non-invasive method to estimate muscle and joint contact forces to better understand muscle contributions to human movement. Considering that most of the existing generic models were developed based on adult anatomy and muscles architectures. To our knowledge, there is no children-specific muscle parameters in MSKM...

1. Introduction Musculoskeletal models (MSKM) provide a non-invasive mechanism to investigate human movement [1]. Most lower-limb MSKM [2,3] are designed for tasks with low range of motion (ROM) (i.e.: walking, running). Reliability of kinematic data calculated between the simula�tion and motion capture software is of utmost importance for relying...

The purpose was to compare the effect of IMU sensor fixation on lower limb kinematics with sensors either taped directly to the skin or affixed within an elastic strap during walk, jump and squat tasks. Overall, the total RMSD was lower for the gait task (strap=74.3; skin=83.6) than for jumping (strap=115.3 and skin=123.5) and squatting (strap=107....

Osteochondroplasty procedure for cam deformity provides excellent outcomes on alleviating pain, improving quality of life and clinical function in femoroacetabular impingement syndrome (FAIS) patients. Although medium-term outcomes on gait biomechanics have been reported, it is unclear how it would translate to better hip muscle forces and joint lo...

Femoroacetabular impingement syndrome (FAIS) surgery can produce improvements in function and patient satisfaction; however, data on muscle assessment and kinematics of high mobility tasks of post-operative patients is limited. The purpose of this study was to evaluate kinematics and muscle activity during a deep squat task, as well as muscle stren...

Background In order to reduce the development of hip osteoarthritis related to cam-type femoroacetabular impingement syndrome (FAIS), corrective surgery has evolved to become a safe and effective treatment. Although corrective surgery produces high level of patient satisfaction, it is still unclear how it affects muscle and hip contact forces durin...

Cam-type femoroacetabular impingement (FAI) is a common cause for athletic hip injury and early hip osteoarthritis. Although corrective cam FAI surgery can improve patient reported outcome measures (PROMs), it is not clear how surgery affects muscle forces and hip joint loading. Surgery for FAI may redistribute muscle forces and contact forces at t...

Femoroacetabular impingement (FAI) surgery can produce improvements in function and patient satisfaction, however, muscle activity data of pre-and post-operatively patients is limited. The purpose was to compare muscle activity during a deep squat task pre- and post-surgery. Eleven male patients (pre-op: 34.1±7.4 years, 25.4±2.7 kg/m2; post-op: 36...

Background: Various methods exist when comparing gait data between groups and include the analysis of a single limb, or taking an average of both limbs. Evidence exists suggesting that both limbs are not symmetrical, so statistical differences may exist in biomechanical variables when comparing gait with different limb-matching methods. Research qu...

Cam-type femoroacetabular impingement (FAI) is a common cause for athletic hip injury and early hip osteoarthritis. Although corrective cam FAI surgery can improve patient reported outcome measures (PROMs), it is not clear how surgery affects muscle forces and hip joint loading. Surgery for FAI may redistribute muscle forces and contact forces at t...

THA is a reliable methods to improve the quality of life in osteoarthritis patients. However, it is still unclear whether it would lead to improved functional mobility. The purpose was to develop a biomechanical functional score to quantify the joint mechanics of THA patients compared to healthy participants (CTRL). Twenty-four THA patients and 12...

Background Cam-type femoroacetabular impingement (FAI) is a femoral head-neck deformity that causes abnormal contact between the femoral head and acetabular rim, leading to pain. However, some individuals with the deformity do not experience pain and are referred to as having a femoroacetabular deformity (FAD). To date, only a few studies have exam...

Background Total Hip Arthroplasty (THA) using dual-mobility (DM) design permits larger hip range of motion (ROM). However, it is unclear how it benefits the patients during activities of daily living. The purpose was to compare kinematic variables of the operated limb between THA patients using either DM or single bearing (SB) implants during a squ...

Electromyography (EMG) signals are complex waveforms which vary in frequency, amplitude and phase angle due to many intrinsic factors [1]. Simulating an EMG signal is not as simple as generating a batch of noise followed by a region of higher amplitude, since it needs to adhere to the same convolutions as a real signal with similar frequency spectr...

Simulation of high flexion tasks such as squatting is hindered through invalid moment length estimation when using generic musculoskeletal (MSK) models. The purpose of this study was to examine the effect of wrapping surface (WS) at the knee and hip joints on the muscle moment arms calculated using a MSK model during squatting tasks. A generic full...

Total Hip Arthroplasty (THA) using a dual mobility (DM) design minimizes the risks of dislocation and impingement, permitting a larger range of motion of the hip. However, it is still unclear whether it would lead to improved functional mobility. The purpose was to analyze if DM implants results in better pelvis, hip and knee joint kinematics impro...

Cam femoroacetabular impingement (FAI) is characterized by an osseous overgrowth on the femoral head-neck junction [1], leading to pain and limited range of motion [2]. Its formation happens during adolescence, with increased activity level as a possible risk factor [3]. Corrective surgery is frequently performed in order to reduce/eliminate pain a...

Introduction: Cam femoroacetabular impingement (FAI) is a hip joint deformity caused by an aspherical femoral head which causes abnormal contact between it and the acetabular rim 1. It can result in anterior hip and constant groin pain 2, however, not everyone with the deformity experiences pain, and these individuals have asymptomatic FAI or also...

Introduction: Cam femoroacetabular (FAI) is associated to labral-chondral damage resulting in hip pain 1 and showing different pelvis and hip kinematic patterns during level walking and maximal squatting 2. Surgical correction is often the final treatment once all non-surgical treatments have been exhausted. To assess the surgical correction, patie...

INTRODUCTION: Cam femoroacetabular impingement (FAI) is characterized as an osseous overgrowth on the femoral head-neck junction [1], leading to pain and limited range of motion (ROM) during daily life activities [2]. Corrective surgery is highly recommended and performed in order to reduce or eliminate pain and further development of osteoarthriti...

Dual mobility (DM) bearing implants reduce the incidence of dislocation following total hip arthroplasty (THA) and as such they are used for the treatment of hip instability in both primary and revision cases. The aim of this study was to compare lower limb muscle activity of patients who underwent a total hip arthroplasty (THA) with a dual mobilit...

With the growing number of individuals with asymptomatic cam-type deformities, elevated alpha angles alone do not always explain clinical signs of femoroacetabular impingement (FAI). Differences in additional anatomical parameters may affect hip joint mechanics, altering the pathomechanical process resulting in symptomatic FAI. The purpose was to e...

Background: Total knee arthroplasty (TKA) has been shown to improve function in patients suffering from osteoarthritis. However, an increase in quadriceps muscle activity has been shown to lead to altered loading on the TKA leading to increased wear on the prosthesis. Purpose: This study aimed to investigate the differences in quadriceps and hamst...

Introduction Dual mobility (DM) bearing implants reduce the incidence of dislocation following total hip arthroplasty (THA) and as such they are used for the treatment of hip instability in both primary and revision cases [1]. The key reason for the use of DM bearings is their capacity to increase hip stability and range of motion (ROM) while minim...

Introduction The cam deformity is a morphological condition that affects 1-in-4 individuals, characterized by decreased concavity of the femoral head, and could lead to femoroacetabular impingement (FAI), resulting in progressive hip pain, labral tears, and cartilage degeneration [1]. Although symptomatic FAI patients have demonstrated altered join...

INTRODUCTION: Dual mobility (DM) bearings have been shown to reduce the incidence of dislocation and as such are being increasingly used for the treatment of hip instability in both the primary and revision situation [1-3]. One of the key reasons for the use of DM bearings is their capacity to increase hip range of motion (ROM) while minimizing the...

INTRODUCTION: Total Hip Arthroplasty (THA) using a dual mobility (DM) design minimizes the risks of dislocation and impingement [1-2], permitting a larger range of motion of the hip [3]. However, it is still unclear whether it would lead to improved functional mobility. The purpose was to compare kinetic and kinematic variables of the operated limb...

INTRODUCTION: Femoroacetabular cam deformity is a morphological hip condition in which the femoral head-neck junction has decreased concavity, usually in the anterosuperior region [1,2]. Asymptomatic femoroacetabular cam deformity (FAD) is common and has a prevalence of 26% in the general population [3]. If the individuals affected by this deformit...

Femoroacetabular impingement of type cam (FAI) is prevalent for young athletic males. More evidences suggest that FAI is a leading factor for the development of hip OA. The purpose of this work is to present the common symptomatology, the hip geometrical variability, and the hip biomechanics adaptation in FAI individuals. FAI seems to be a combinat...

The patellofemoral pain syndrome (PFPS) is defined as a retropatellar or anterior knee pain, without another disease. It affects until 25% of the population, being more common in women and trained persons. As others pathologies, PFPS have been affected the training of elite and amateurs athletes. Thereby, the general purpose of this study was dis...

The Patellofemoral Pain Syndrome (PFPS), has a multifactorial etiology and affects approximately 7 to 15% of the population, mostly women, youth, adults and active persons. PFPS causes anterior or retropatelar pain that is exacerbated during functional motor gestures, such as up and down stairs or spending long periods of time sitting, squatting or...

A espondilólise é um defeito na pars interarticularis da vértebra com descontinuidade óssea do segmento intervertebral; a progressão do defeito resulta em deslizamento de uma vértebra sobre a outra, chamado espondilolistese, o que pode provocar dor. O tratamento não-cirúrgico é a escolha inicial na maioria dos casos de espondilolistese, mas poucos...

Spondylolysis is a defect in the pars interarticularis of a vertebra with a disruption in the intervertebral segment. Progression of the defect leads to one vertebra slipping over another - which is called spondylolisthesis - which may cause low-back pain. Non-surgical treatment is the initial course of action in most cases of spondylolisthesis. Ho...

From multifactorial etiology, patellofemoral pain syndrome (PFPS) affects 7 to 15% of the population, causes diffuse pain, anterior or behind patella and is exacerbated during functional activities. However, both the evaluation process and the evolution of treatment are based fundamentally in the reporting of pain by the patient and in the function...

Resumo— Muitos autores estudaram as modificações funcionais e físicas em indivíduos pós-acidente vascular cerebral (AVC); porém, poucos são os estudos que avaliam possíveis alterações no hemicorpo não plégico de indivíduos hemiplégicos. Propôs-se nesta pesquisa comparar a atividade eletromiográfica nos músculos do antebraço de pacientes espásticos...

Considerando que a Educação Física ainda é tratada de maneira desigual em relação à maioria dos outros componentes curriculares das escolas, e sabendo da busca e do trabalho dos professores da área em valorizá-la e enriquecê-la, o objetivo deste estudo foi o de analisar o trabalho de quatro professores das redes pública e privada do estado de São P...