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Efeitos do feedback positivo na motivação intrínseca e desempenho de uma habilidade motora do futsal em crianças.

Fri, 26 Sep 2025 00:00:00 GMT

Title: Efeitos do feedback positivo na motivação intrínseca e desempenho de uma habilidade motora do futsal em crianças.

Benefícios do exercício terapêutico no manejo das doenças de osgood-schlatter e legg-calvé-perthes: uma revisão sistemática

Tue, 23 Sep 2025 00:00:00 GMT

Title: Benefícios do exercício terapêutico no manejo das doenças de osgood-schlatter e legg-calvé-perthes: uma revisão sistemática

Características musculoesqueléticas do quadril em corredores de rua: relação com o alinhamento do pé e com a magnitude do movimento pélvico no plano frontal durante a corrida

Thu, 18 Dec 2025 00:00:00 GMT

Title: Características musculoesqueléticas do quadril em corredores de rua: relação com o alinhamento do pé e com a magnitude do movimento pélvico no plano frontal durante a corrida Abstract: Running is a physical activity with a growing number of participants. The clinical reasoning in physical therapy for these runners considers the relationship between musculoskeletal characteristics of the hip and distal joints, such as the ankle–foot complex. In addition, this reasoning considers the influence of hip characteristics on pelvic kinematics. This dissertation is organized into two studies. The first study aimed to investigate the relationship between forefoot–shank alignment and hip musculoskeletal characteristics. The second study aimed to examine the relationship between the magnitude of frontal-plane pelvic motion and peak hip abductor torque in recreational runners. Both studies employed a cross-sectional observational design. Inclusion criteria were age over 18 years, at least 12 months of running experience, and at least one training session per week. Exclusion criteria were a history of lower-limb surgeries, musculoskeletal injuries in the month prior to data collection, musculoskeletal complaints on the day of testing, and any restrictions preventing data collection. Inclusion and exclusion criteria were identical for both studies. In the first study, clinical measurements of forefoot–shank alignment and passive hip stiffness were recorded; maximal isometric torque of the hip abductors and lateral rotators was assessed using a handheld dynamometer; and hip extensor performance was evaluated using the single-leg hamstring bridge (SLHB) test. In the second study, the same measure of maximal isometric hip abductor torque was used. Additionally, a two-dimensional kinematic analysis of pelvic drop during running at self-selected speed and at 3.3 m/s was conducted. Runners were characterized based on anthropometric data, physical activity level assessed by the International Physical Activity Questionnaire, and running training characteristics. Results from the first study indicated that forefoot–shank alignment correlated with hip abductor (r = -0.293, p = 0.039) and lateral rotator performance (r = -0.318, p = 0.024), but was not correlated with passive hip stiffness (p = 0.569) or SLHB performance (p = 0.368). The second study showed no correlation between maximal isometric hip abductor torque and pelvic drop on either the dominant or nondominant side at both running speeds investigated (p > 0.05). In conclusion, greater forefoot–shank varus is associated with poorer performance of maximal isometric hip abductor and lateral rotator torque, reinforcing the relationship between proximal and distal characteristics of the lower limb. Finally, maximal isometric hip abductor torque is not related to peak frontal-plane pelvic drop. Other factors may contribute to this movement, and poorer abductor performance may be related to motion of other body segments.

Aspectos relacionados a percepção de dor e funcionalidade de indivíduos com disfunção femoropatelar

Fri, 12 Dec 2025 00:00:00 GMT

Title: Aspectos relacionados a percepção de dor e funcionalidade de indivíduos com disfunção femoropatelar Abstract: Introduction: Patellofemoral pain (PFP) is highly prevalent among young adult females and is characterized by chronic, intermittent anterior knee pain that negatively affects functional activities. Although biomechanical factors have been extensively investigated, the contribution of psychosocial factors to functional performance remains insufficiently understood. Objectives: To identify differences in pain intensity, perceived function, and psychosocial factors between females with and without PFP, and to determine which psychosocial variables are most strongly associated with performance on functional tests. Methods: A cross-sectional study was conducted with 100 female participants (18–30 years), allocated into a PFP group (n = 50) and a control group (n = 50). The following variables were assessed: pain intensity (Visual Analog Scale), pain catastrophizing (Pain Catastrophizing Scale), positive and negative affect (PANAS), perceived function (Activities of Daily Living Scale), self-efficacy for pain and for exercise, and functional performance (Y-Balance Test, Triple Hop Test, and Vertical Jump Test). Independent samples t-tests were used for between-group comparisons. Multiple linear regression analyses were performed to examine the association between biomechanical and psychosocial factors and performance on functional tests. Results: The PFP group demonstrated greater pain intensity (4.62 ± 1.58 vs 0.00 ± 0.00 cm; p < 0.001), higher catastrophizing (26.32 ± 8.26 vs 1.22 ± 2.46; p < 0.001), increased negative affect (23.02 ± 7.54 vs 15.78 ± 4.46; p < 0.001), lower self-efficacy for pain (44.98 ± 10.36 vs 59.74 ± 0.94; p < 0.001) and for exercise (6.20 ± 2.09 vs 8.82 ± 1.21; p < 0.001), and poorer functional performance (Y-Balance composite score: 68.75 ± 8.60 vs 82.71 ± 9.09%; Triple Hop: 213.36 ± 50.13 vs 289.47 ± 69.25 cm; Vertical Jump: 20.02 ± 4.68 vs 28.43 ± 6.57 cm; p < 0.001 for all comparisons). Pain intensity was the primary factor associated with functional test performance (R² = 0.38–0.42; p < 0.001). Exercise self-efficacy was associated only with Vertical Jump performance (β = 0.23; p = 0.03), whereas catastrophizing, negative affect, positive affect, pain self-efficacy, and perceived function were not significantly associated with functional test outcomes. Conclusion: Females with PFP exhibited reduced functional performance, greater catastrophizing, and lower self-efficacy compared to controls. Pain intensity was the main factor associated with functional test performance, demonstrating a greater influence than the other psychosocial variables assessed.