ARNALDO JOSE HERNANDEZ
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Ortopediae Traumatologia, Faculdade de Medicina - Docente
LIM/41 - Laboratório de Investigação Médica do Sistema Músculoesquelético, Hospital das Clínicas, Faculdade de Medicina
LIM/41 - Laboratório de Investigação Médica do Sistema Músculoesquelético, Hospital das Clínicas, Faculdade de Medicina
24 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 24
- CrossFit Overview: Systematic Review and Meta-analysis(2018) CLAUDINO, Joao Gustavo; GABBETT, Tim J.; BOURGEOIS, Frank; SOUZA, Helton de Sa; MIRANDA, Rafael Chagas; MEZENCIO, Bruno; SONCIN, Rafael; CARDOSO FILHO, Carlos Alberto; BOTTARO, Martim; HERNANDEZ, Arnaldo Jose; AMADIO, Alberto Carlos; SERRAO, Julio CercaBackground: CrossFit is recognized as one of the fastest growing high-intensity functional training modes in the world. However, scientific data regarding the practice of CrossFit is sparse. Therefore, the objective of this study is to analyze the findings of scientific literature related to CrossFit via systematic review and meta-analysis. Methods: Systematic searches of the PubMed, Web of Science, Scopus, Bireme/MedLine, and SciELO online databases were conducted for articles reporting the effects of CrossFit training. The systematic review followed the PRISMA guidelines. The Oxford Levels of Evidence was used for all included articles, and only studies that investigated the effects of CrossFit as a training program were included in the meta-analysis. For the meta-analysis, effect sizes (ESs) with 95% confidence interval (CI) were calculated and heterogeneity was assessed using a random-effects model. Results: Thirty-one articles were included in the systematic review and four were included in the meta-analysis. However, only two studies had a high level of evidence at low risk of bias. Scientific literature related to CrossFit has reported on body composition, psycho-physiological parameters, musculoskeletal injury risk, life and health aspects, and psycho-social behavior. In the meta-analysis, significant results were not found for any variables. Conclusions: The current scientific literature related to CrossFit has few studies with high level of evidence at low risk of bias. However, preliminary data has suggested that CrossFit practice is associated with higher levels of sense of community, satisfaction, and motivation.
- BILATERAL LOCALIZED PIGMENTED VILLONODULAR SYNOVITIS OF THE KNEE: CASE REPORT AND REVIEW(2018) FERNANDES, Tiago Lazzaretti; VIDEIRA, Livia Dau; SASAKI, Sandra Umeda; NATALINO, Renato Jose Mendonca; ALMEIDA, Adriano Marques de; PEDRINELLI, Andre; HERNANDEZ, Arnaldo JoseObjectives: Several cases of bilateral diffuse pigmented villonodular synovitis (PVNS) or tenosynovial giant cell tumor have been described in the literature. Nevertheless, some presentations are rare and differential diagnoses are necessary. Methods: The purpose of this study was to perform a systematic review of the literature related to PVNS and to report a rare supra-patellar bilateral and focal presentation. We performed a systematic data review in the Pubmed Clinical Queries database using MeSH and keywords related to PVNS and tenosynovial giant cell tumor. Results: Two cases of bilateral and local PVNS had been previously described, but neither was localized in the supra-patellar compartment. To our knowledge, this case report is the first to describe supra-patellar bilateral and localized PVNS of the knee. This case involves a 28-year-old woman with bilateral localized PVNS of the supra-patellar recess of the knee. MRI showed a low-signal intensity nodule in T1-and T2-weighted images. These were associated with hemosiderin pigmentation. Conclusion: The most important finding of the case reported is related to rarity and location. Histopathology analysis confirmed a rare case of hemosiderin pigmentation in the capsular nodule with internal non-pigmented villous content. Lipoma arborescens in the supra-patellar form must be ruled out as a differential diagnosis since it occurs in the same site.
- THE NATURAL HISTORY OF THE ANTERIOR KNEE INSTABILITY BY STRESS RADIOGRAPHY(2014) REZENDE, Marcia Uchoa de; HERNANDEZ, Arnaldo Jose; CAMANHO, Gilberto LuisObjective: To analyze the anteroposterior displacement of the knee by means of stress radiography in individuals with unilateral anterior knee instability and relate to time of instability. Methods: Sixty individuals with intact knees (control group) and 125 patients with unilateral anterior instability (AI group) agreed to participate in the study. Gender, age, weight, height, age at injury, time between injury and testing, and surgical findings are studied. Both groups are submitted to anterior and posterior stress radiographies of both knees. Anterior (ADD) and posterior displacement difference (PDD) were calculated between sides. Results: In the control group ADD and PDD are in average, zero, whereas in the AI group ADD averaged 9.8mm and PDD, 1.92mm. Gender, age, weight, height, age at trauma and presence of menisci's lesions do not intervene in the values of ADD and PDD. Meniscal injuries increase with time. ADD and PDD do not relate with the presence or absence of associated menisci's lesions. The ADD and the PDD are related to each other and increase with time. Conclusion: There is a permanent anterior subluxation of the injured knee that is related to the amount of anterior displacement that increases with time. Level of Evidence III, Study Types Case-control study.
conferenceObject Biomechanical Analysis Of A Cell Therapy And Tissue Engineering Strategy For Articular Cartilage Restoration - A Pre-clinical Study(2022) FARIA, R. R.; SANTANNA, J. P.; ASSAD, I. D.; PINHEIRO, C. C.; FERNANDES, T. L.; BUENO, D. F.; HERNANDEZ, A. J.- Muscle Injury: Pathophysiology, Diagnosis, and Treatment(2022) SANTANNA, João Paulo Cortez; PEDRINELLI, André; HERNANDEZ, Arnaldo José; FERNANDES, Tiago LazzarettiAbstract Skeletal muscle tissue has the largest mass in the human body, accounting for 45% of the total weight. Muscle injuries can be caused by bruising, stretching or laceration. The current classification divides these injuries into mild, moderate and severe. The signs and symptoms of grade I lesions are edema and discomfort; grade II, loss of function, gaps and possible ecchymosis; and grade III, complete rupture, severe pain and extensive hematoma. The diagnosis can be confirmed by ultrasound, which is dynamic and cheap, but examiner dependent; and magnetic resonance imaging (MRI), which provides better anatomical definition. The initial phase of the treatment consists in protection, rest, optimal use of the affected limb, and cryotherapy. Nonsteroidal anti-inflammatory drugs (NSAIDs), ultrasound therapy, strengthening and stretching after the initial phase and range of motion without pain are used in the clinical treatment. On the other hand, surgery has precise indications: hematoma drainage and muscle-tendon reinsertion and reinforcement.
- INCREASED RISK OF SPORTS INJURIES AMONG MEDICAL STUDENTS: CROSS-SECTIONAL STUDY(2022) ASPERTI, A. N. D. R. E. M. A. R. A. N. G. O. N. I.; JOVANOVIC, I. G. O. R.; CARUI, N. I. C. K. O. L. A. S. A. N. D. R. E. A. S. B. O. M.; PEDRINELLI, A. N. D. R. E.; HERNANDEZ, A. R. N. A. L. D. O. J. O. S. E.; FERNANDES, T. I. A. G. O. L. A. Z. Z. A. R. E. T. T. I.Objective: To evaluate the nature and rate of sports injuries in medical students, as well as the risk factors at these events. Methods: All student-athletes (218) from a Medical School, integrated in at least one of the six team sport modalities (soccer, rugby, indoor soccer, handball, basketball, and volleyball) in 2017, were included. Injuries affecting their performance, regardless of time loss, were included. Athlete-exposure (A-E) was defined as one student-athlete participating in one practice or game. Results: Injury rates were significantly higher in junior medical students (1(st) - 3(rd) year) (7.58 per 1000 A-E, 95%CI = 6.11-9.06) than in senior medical students (4(th) - 6(th) year) (4.49 per 1000 A-E, 95%CI = 3.26-5.73) (p < 0.001). Multi-sports athletes had higher injury rates (10.69 per 1000 A-E, 95%CI = 8.22-13.17) than single-sport athletes (4.49 per 1000 A-E, 95%CI = 3.51-5.47) (p = 0.002). More than 60% of reported injuries occurred in the lower limbs and the mechanism that accounted for most injuries in games was player contact (51%); whereas in practice, it was non-contact (53%). Conclusion: Junior medical students present a higher injury rate than seniors. Medical students practicing more than one modality had a higher injury rate than those involved in just one sport modality.
- ANTEROMEDIAL OR CENTRAL ANATOMIC ACL RECONSTRUCTION? A CADAVERIC HIP-TO-TOE STUDY(2023) FERNANDES, Tiago Lazzaretti; SOUZA, Michel Oliveira; NETO, Cyro Albuquerque; ARAUJO, Paulo Henrique; PEDRINELLI, Andre; HERNANDEZ, Arnaldo JoseObjective: To compare anatomic anterior cruciate ligament (ACL) reconstruction between two tunnel positions in knees with isolated ligament tears. Methods: Anatomic ACL reconstruction was performed, from hip-to-toe, on 15 fresh cadaveric specimens. No associated lesions were created to enhance knee instability. The protocol was conducted in three states: (1) complete isolated ACL deficiency; (2) anatomic femoral and tibial anteromedial ACL reconstruction (AM REC); and (3) anatomic femoral and tibial central ACL reconstruction (Central REC). The reconstruction protocols were randomly assigned. The continuous mechanized pivot-shift test was recorded dynamically with a tracking system. Results: The Central REC group showed a smaller degree of internal rotation (0.6 & DEG; & PLUSMN; 0.3 & DEG; vs. 1.8 & DEG; & PLUSMN; 0.3 & DEG;, respectively, P < 0.05) and no difference in anterior translation (4.7 mm & PLUSMN; 0.4 mm vs. 4.5 mm & PLUSMN; 0.4 mm, respectively, P > 0.05) in the pivot-shift test, compared with the AM REC group. Conclusion: The central anatomic ACL reconstruction resulted in greater restriction of internal rotation than the anteromedial anatomic ACL reconstruction. Experimental Study on Cadaver.
conferenceObject Articular Cartilage Repair By Tissue Engineering And Cell Therapy: A Pre-clinical Trialimaging Evaluation(2022) SANTANNA, J. P.; FARIA, R. R.; PINHEIRO, C. C.; AIELLO, V. D.; FERNANDES, T. L.; BUENO, D. F.; HERNANDEZ, A. J.- COST-EFFECTIVENESS AND BUDGET IMPACT ANALYSIS OF VISCOSUPPLEMENTATION WITH ORTHOVISC (TM) (HYALURONAN) IN KNEE OSTEOARTHRITIS, FROM THE BRAZILIAN PRIVATE HEALTH CARE SYSTEM PERSPECTIVE(2012) REZENDE, M. U.; HERNANDEZ, A. J.; NAMBA, M. M.; FERNANDES, R. A.; TAKEMOTO, M. L. S.; SANTOS, P. M. L.; REPSOLD, D. M.; SILVA, R. C.; ANDRADE, P. C.
- Exergy Analysis of the Musculoskeletal System Efficiency during Aerobic and Anaerobic Activities(2018) SPANGHERO, Gabriel Marques; ALBUQUERQUE, Cyro; FERNANDES, Tiago Lazzaretti; HERNANDEZ, Arnaldo Jose; MADY, Carlos Eduardo KeutenedjianThe first and second laws of thermodynamics were applied to the human body in order to evaluate the quality of the energy conversion during muscle activity. Such an implementation represents an important issue in the exergy analysis of the body, because there is a difficulty in the literature in evaluating the performed power in some activities. Hence, to have the performed work as an input in the exergy model, two types of exercises were evaluated: weight lifting and aerobic exercise on a stationary bicycle. To this aim, we performed a study of the aerobic and anaerobic reactions in the muscle cells, aiming at predicting the metabolic efficiency and muscle efficiency during exercises. Physiological data such as oxygen consumption, carbon dioxide production, skin and internal temperatures and performed power were measured. Results indicated that the exergy efficiency was around 4% in the weight lifting, whereas it could reach values as high as 30% for aerobic exercises. It has been shown that the stationary bicycle is a more adequate test for first correlations between exergy and performance indices.
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