Sérgio T Fonseca

Sérgio T Fonseca
Federal University of Minas Gerais | UFMG · Departamento de Fisioterapia

Doctor of Science
Full Professor at the Physical Therapy Department of the Universidade Federal de Minas Gerais

About

217
Publications
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Introduction
Sérgio T Fonseca currently works at the Department of Physical Therapy of the Universidade Federal de Minas Gerais, Brazil. Sérgio teaches and advises in the areas of Physical Therapy and Rehabilitation Sciences. His main research focus is on human movement, applying concepts of ecological approach and dynamical systems to human perception and action.

Publications

Publications (217)
Article
Walking experience is crucial for inter-joint coordination during gait acquisition. Toddlers show asymmetrical lower limb function during early locomotion for transferring body weight (regulatory limb) and steering the direction of walking (impulse limb). This study aimed to investigate the association between coordination patterns and walking expe...
Article
Background Biofeedback has been used by rehabilitation professionals in the treatment of poststroke function impairments. Purpose Investigate the efficacy of any type of biofeedback intervention for the treatment of upper limb function in individuals following stroke. Study Design Systematic review of literature with meta-analysis. Methods Liter...
Article
Objectives The purpose of this study was to investigate intra- and interrater reliability and minimal detectable change (MDC) of clinical measures proposed to assess tibial torsion and the posture of the lower limbs and pelvis in the transverse plane. Methods Twenty-five able-bodied and asymptomatic participants (mean age 27 ± 4.03, 12 women) were...
Article
Background Alterations of frontal plane patellar alignment could be related to lower limb disorders. Clinical assessment must be able to identify the influence of non-local factors in patellar alignment. Objective To identify the influence of lower limb torque, range of motion (ROM), and foot alignment on patellar rotation in healthy athletes. Me...
Article
Introduction This study aimed to evaluate the effect of scapular dyskinesis and its interaction with hand dominance and humerothoracic angles on three-dimensional scapular kinematics in asymptomatic individuals in all planes of arm motion. Methods Forty-five asymptomatic participants, seventeen men and twenty-eight women, were separated into two g...
Article
Full-text available
Abstract Objective To evaluate the biomechanical behavior of the medial longitudinal arch (MLA) of the foot and the kinematic parameters of the lower limbs with biomimetic footwear (BF) and non-biomimetic (NB1, NB2, NB3 and NB4) footwear in children at the beginning of the gait acquisition phase. Methods Four toddlers were evaluated at the beginnin...
Article
Background Proper ankle dorsiflexion range of motion (ADF-ROM) allows the anterior roll of the tibia relative to the foot during the midstance phase of gait, which contributes to forward movement of the body. Individuals with reduced passive ADF-ROM may present altered movement patterns during gait due to an inefficient anterior tibial roll over th...
Article
The multibody nature of the musculoskeletal system makes each applied force potentially accelerate all body segments. Hence, muscles’ actions on the kinematics of crossed and non-crossed joints should be estimated based on multibody dynamics. The objective of this study was to systematically investigate the actions of main lower limb muscles on the...
Article
Background The Rizzoli Foot Model (RFM) and Oxford Foot Model (OFM) are used to analyze segmented foot kinematics with independent tracking markers. Alternatively, rigid marker clusters can be used to improve markers’ visualization and facilitate analyzing shod gait. Research question Are there differences in angles from the RFM and OFM, obtained...
Article
Fast walking may require a non-uniform change of dynamic stiffness among lower limb joints to deal with this daily task’s demands. The change of dynamic joint stiffness may be distinct between females and males. This study aimed to test for differences in dynamic stiffness among lower limb joints in response to increased walking speed in males and...
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This study aimed to investigate the effects of knee flexion during the preparation phase of a serve on the tennis serve performance, using inertial sensors. Thirty-two junior tennis players were divided into two groups based on their maximum knee flexion during the preparation phase of serve: Smaller (SKF) and Greater (GKF) Knee Flexion. Their rack...
Article
Objectives To describe and compare the incidence, prevalence, severity, and profile of injuries (acute and overuse) and illness between female and male youth elite judokas during 30 weeks of a sports season. Design Prospective cohort study. Methods A total of 154 elite youth judokas (83 males and 71 females) were assessed from January to August 2...
Article
Purpose: To explore the effects of hippotherapy for children with cerebral palsy (CP) with different ages, topographies and severities. Method: Before-after study with three longitudinal measurements: (T1) initial, (T2) 3-months, (T3) 6-months after T1. CP children (n=31) stratified by age (4-7; 8-12 years), severity (mild, moderate, severe), topog...
Article
This study aimed to investigate the regularity of the lower limb joint kinematics in runners with and without a history of running-related injuries. The second aim was to verify if the movement pattern regularities are different among the lower limb joints. Eighteen asymptomatic recreational runners with and without a history of running-related inj...
Article
The addition of a load during walking requires changes in the movement pattern. The investigation of the dynamic joint stiffness behavior may help to understand the lower limb joints’ contribution to these changes. This study aimed to investigate the dynamic stiffness of lower limb joints in response to the increased load carried while walking. Thi...
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Objective The aim of this systematic review was to investigate the effect of exercise-based programmes in the prevention of non-contact musculoskeletal injuries among football players in comparison to a control group. Design Systematic review and meta-analysis of randomised controlled trials. Data sources MEDLINE, EMBASE, CENTRAL, CINAHL, PEDro a...
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Background Increased foot pronation during walking has been associated with low back pain. This association may be due to the impact of increased pronation on pelvic motion. Objective To investigate the effects of increased bilateral foot pronation on pelvic kinematic in frontal and transverse planes during the loading response phase of gait. Met...
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Movement analysis provides a vast amount of data, which, frequently, are not used in the clinical decision-making process. For example, traditional gait data visualization is based on a time-based display of joint angles, but part of the information is lost when these time-series are averaged across different gait strides. Horizon graph is a data d...
Article
The purpose of this study was to investigate the angular kinetic energy transfers and expenditure among the trunk (bisegmented), the pelvis and the kick limb during maximal soccer instep kicking, and to characterize kicking kinetics and kinematics. Eighteen adult male amateur soccer players (24.0 ± 4.1 years old) were assessed. Three-dimensional ki...
Article
Background Some traditional single-leg squat tests focused on number of repetitions may not demand precise control of lower limb dynamic alignment, especially in the frontal and transverse planes. The primary objective of this study was to evaluate test–retest reliability and construct validity of a novel single-leg squat test – the ‘precision-squa...
Article
The midfoot joint complex (MFJC) is related to the mechanics and efficiency of the walking propulsive phase and low midfoot passive stiffness may require compensatory foot and ankle joint moments to avoid excessive pronation and inefficient propulsion. This study aimed to investigate the kinematics and kinetics of the MFJC and ankle during the prop...
Article
Background Hip motion in the transverse plane is coupled with foot motion in the frontal plane during closed kinematic activities, such as gait. Considering that movement patterns and bone alignment might influence passive mechanical properties of joints in the long term, it is possible that hip passive stiffness and foot complex stiffness and alig...
Article
Objective To investigate whether a common measure of sagittal pelvic torsion based on the superior iliac spines behave similarly to predictions of a rigid (non-torsioned) plane, when leg length discrepancies (LLD) are induced. Method Twenty-four young asymptomatic participants were subjected to pelvic posture measurements that use the anterior-sup...
Article
Objective The objective was to establish normative data for hip strength, flexibility, and stiffness in male soccer athletes and to investigate the effect of age and limb dominance on these variables. Design Cross-sectional. Setting Soccer team physical therapy department. Participants A total of 293 asymptomatic male soccer athletes were assess...
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Background The family‐centred approach is fundamental in the therapeutic process of children with cerebral palsy (CP), and the increased competence of parents about therapeutic devices, especially orthoses, can facilitate its implementation, thus intensifying the benefits that this device provides. The aim of this study was to understand the percep...
Article
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Collective behaviors in sports teams emerge from the coordination between players formed from their perception of shared affordances. Recent studies based on the theoretical framework of ecological dynamics reported new analytical tools to capture collective behavior variables that describe team synergies. Here, we introduce a novel hypothesis base...
Article
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The understanding that sports injury is the result of the interaction among many factors and that specific profiles could increase the risk of the occurrence of a given injury was a significant step in establishing programs for injury prevention. However, injury forecasting is far from being attained. To be able to estimate future states of a compl...
Article
The Publisher regrets that this article is an accidental duplication of articles which have already been published in Physical Therapy in Sport (2018) e1-e7 http://dx.doi.org/10.1016/j.ptsp.2020.04.006. The duplicate articles have therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about...
Article
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Background Adherence to the use of recommended measures/criteria for return to sport (RTS) clearance after anterior cruciate ligament reconstruction (ACLR) is crucial for successful rehabilitation. Objectives The purpose of this study was to describe the current clinical practice of Brazilian physical therapists that treat patients after ACLR, inc...
Article
To assess the test – retest reliability and sensitivity of an instrument developed to measure the passive mechanical properties of the midfoot joint complex (MFJC), nine female and three male healthy young adults were evaluated in two different days by two experienced examiners. After proper participant positioning on the instrument, the left foref...
Article
Background The alignment of the foot-ankle complex may influence the kinematics and kinetics of the entire lower limb during walking. Objectives This study investigated the effect of different magnitudes of varus alignment of the foot-ankle complex (small versus large) on the kinematics and kinetics of foot, ankle, knee, and hip in the frontal and...
Article
Altered scapular movement in subacromial pain syndrome has been demonstrated using discrete data reduction approach. However, this approach does not consider the data collinearity and variability, and scapular translations are poorly investigated in symptomatic individuals. The purpose of this study was to investigate the scapular rotation and tran...
Article
Background: Hip external rotation stiffness, midfoot passive mechanical resistance and foot alignment may influence on ankle, knee and hip movement in the frontal and transverse planes during gait. Research question: Are hip stiffness, midfoot mechanical resistance and foot alignment associated with ankle, knee and hip kinematics during gait? M...
Article
Due to the relative motion among the foot rays, the present study aimed to compare the rigidity as well as the forefoot – rearfoot kinematics obtained from three forefoot tracking marker clusters during walking and foot pronation-supination (PROSUP). Nineteen healthy adults performed six walking trials and ten cycles of foot PROSUP movements record...
Article
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Objective To compare the gait event identification of five algorithms recommended in the literature with those provided by force plate (gold standard) in children with unilateral or bilateral spastic cerebral palsy (SCP). Methods This was a cross-sectional study of the gait of three girls and four boys with a mean age of 8.6 ± 4.7 years. Four chil...
Article
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Children with Attention-Deficit Hyperactivity Disorder (ADHD) struggle to perform a host of daily activities. Many of these involve forceful interaction with objects and thus implicate dynamic touch. Therefore, deficits in dynamic touch could underlie functional difficulties presented by ADHD children. We investigated whether performance on a dynam...
Article
Background The clinical measure of forefoot-shank alignment (FSA) predicts the amount of foot pronation during weight-bearing tasks. This may be mediated by a relationship between FSA and the mechanical resistance of the midfoot joint complex (MFJC) to forefoot inversion, which is a component of weight-bearing foot pronation. Objective To investi...
Article
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Background: Strengthening of hip and trunk muscles can modify pelvis and hip movements. However, the varus alignment of the foot-ankle complex (FAC) may influence the effects of muscle strengthening, due to the relationship of FAC alignment with pelvic and hip kinematics. This study evaluated the effects of hip and trunk muscle strengthening on pe...
Preprint
Background Hippotherapy is a complementary therapeutic modality that seeks to promote functional changes in children with cerebral palsy (CP). Knowledge of the direct and indirect changes resulting from this therapy will help identify which groups of children with cerebral palsy can benefit from this type of therapy. The present study aimed to anal...
Article
Full-text available
Objectives The purpose of this study was to examine the reliability of clinical measures related to forward shoulder posture (pectoralis minor index [PMI], scapular index [SI], abduction index [AI], acromion to the wall index [AWI] acromion to the treatment table index [ATI], and thoracic curvature [TC]), and to investigate the association (redunda...
Article
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Purpose: Reduced propulsive capability can impact negatively on mobility activities of many children with spastic unilateral cerebral palsy (SUCP). This study investigated the effect of a task-oriented training program combined with functional electrical stimulation (FES) on the motor capacity of children with SUCP. Methods: Single-case A-B design...
Article
Background The demonstration of the relationship between midfoot passive mechanical resistance and foot pronation during gait may guide the development of assessment and intervention methods to modify foot motion during gait and to alter midfoot passive mechanical resistance. Research question Is foot pronation during the stance phase of gait re...
Patent
Full-text available
A presente invenção propõe um dispositivo para medição da rigidez passiva das articulações do antepé em relação mediopé utilizando um sensor de torque e um potenciômetro. O dispositivo compreende um conjunto de peças para imobilização de parte dos membros inferiores e do tornozelo, contendo um medidor de torque e um medidor de rotação, que são liga...
Article
The relationship between shoulder pain and scapular dyskinesis (SDK) is unclear. Differences between groups with and without SDK have been demonstrated, focusing on the amount of scapular motion at specific degrees of humeral elevation. However, this approach does not consider the temporal information and shape of the scapular motion temporal serie...
Article
Study Design Clinical measurement, cross-sectional. Background Investigations on the causes of patellar tendinopathy (PT) should consider impairments at the hip and foot/ankle since they are known to influence movement patterns and affect patellar tendon loading. Objectives To investigate, by means of CART analysis, impairments of the hip and foot/...
Article
STUDY DESIGN: Controlled Laboratory Study; Cross-sectional. OBJECTIVES: 1) to compare proprioceptive acuity and passive ankle stiffness between persons with and without functional ankle instability, and 2) to assess the influence of passive joint stiffness on the proprioceptive acuity in persons with functional ankle instability. BACKGROUND: Defic...
Article
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Background: Gait speed and metabolic cost are indicators of functional capacity in children with cerebral palsy. Uncovering their mechanisms helps guide therapeutic actions. Objectives: To investigate the contributions of energy-generating and energy-conserving mechanisms to gait speed and metabolic cost of children with unilateral cerebral pals...
Article
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Background: Therapeutic suits or clothing whether associated with intensive protocols or not, became popular in the rehabilitation of children with cerebral palsy. Studies have reported positive effects of these suits on children's posture, balance, motor function and gait. A summary of current literature may help guide therapeutic actions. Objec...
Conference Paper
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considering its multiple joints. The findings of Bruening et al. [1] suggest that the ankle power in the sagittal plane during stance phase of gait obtained from a uni-segmented foot model (USFM) is overestimated, when comparing to a biomechanical model with the foot bi-segmented into forefoot and rearfoot (BSFM) in subjects in maturational age (ar...
Conference Paper
Full-text available
During the propulsion phase of gait, the joints ankle and midfoot (forefoot in relation to rearfoot) plantar flex and produce mechanical work in the sagittal plane [1]. To make the foot a rigid lever, it is expected that the foot supinates, after plantar flexion. However, this pattern is not always observed, since some individuals have supination i...
Article
Background: Strengthening of the hip and trunk muscles has the potential to change lower limb kinematic patterns, such as excessive hip medial rotation and adduction during weight-bearing tasks. This study aimed to investigate the effect of hip and trunk muscles strengthening on hip muscle performance, hip passive properties, and lower limb kinema...
Conference Paper
Background Patellar tendinopathy is a clinically identified overload injury associated to jumping activities. The symptoms may last for years, affect sports participation and even lead to the end of a sport career. Therefore, is necessary to understand the profile of injury/complain in a sports team in order to plan preventive strategies. Objectiv...
Article
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The impingement syndrome is a dynamic impairment of the shoulder girdle. Muscles dysfunctions like decreased force in the muscle anterior serratus, as well as decreased lower trapezius moment and increased stretching re- sistance in the pectorallis minus muscle have been related to the impinge- ment syndrome. The aim of the present study was to com...
Article
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Background: Reducing rearfoot eversion is a commonly desired effect in clinical practice to prevent or treat musculoskeletal dysfunction. Interventions that pull the lower limb into external rotation may reduce rearfoot eversion. Objective: This study investigated whether the use of external rotation elastic bands, of different levels of stiffne...
Conference Paper
Full-text available
Objetivo: O objetivo do presente estudo foi comparar a rigidez dinâmica do complexo articular do mediopé no plano sagital entre grupos com diferentes magnitudes de pronação do pé durante a fase de apoio da marcha. Hipotetizou-se que indivíduos com níveis maiores de pronação do pé apresentariam valores menores de rigidez do mediopé no plano sagital....
Article
Full-text available
Aiming hand-held tools at targets in space entails adjustments in the dynamical organization of aiming patterns according to the required precision. We asked whether and how these adjustments are modified by the tool’s mass distribution. Twelve participants performed reciprocal aiming movements with a 50-cm long wooden probe. Kinematic patterns of...