http://bdtd.uftm.edu.br/handle/tede/5 2026-11-06T16:08:30Z http://bdtd.uftm.edu.br/handle/123456789/2174 Título: Sintomas depressivos podem afetar o ângulo da cifose torácica e o desempenho físico em mulheres na menopausa Abstract: In post-menopause, women are more susceptible to occurrence of psychiatric symptoms, with depression is the most common. This is associated with hormonal changes, such as a reduction in the production of estrogen and progesterone. Besides that, postmenopausal women also have a prominent curvature of the spine, which worsens over time, especially in the thoracic region, resulting in an increase in the angle of kyphosis and consequent limitations in physical function, affecting activities of daily living. In addition to these negative outcomes, postmenopausal women may also experience a decline in physical performance, especially gait speed. Therefore, the objective of this study is to assess whether there is an association between depressive symptoms, hyperkyphosis and decline of physical performance in postmenopausal women. This is an observational cross-sectional study with 137 postmenopausal women dichotomized into two groups using the Geriatric Depression Scale (GDS-15): depressive symptoms group (SD; n=58; 60.12±8.45) and without depressive symptoms group (SDP; n =79; 60.72±7.45). Thoracic kyphosis angle was evaluated by the flexicurve method. Functional tests were carried out to assess physical performance: Timed Up and Go (TUG), Five Times Stand Up and Sit Test (TLSCV), 6-minute Gait Speed (VM6min), Usual 10-meter Gait Speed (VM10mU), Gait Speed 10 meters Fast (VM10mR) and Walking Speed 400 meters (VM400m). Student's t and Chi-Square (χ2) tests were assessed to verify difference between groups. Linear Person Correlation and Linear Regression were performed to verify the association and strength of the linear relationship between the variables. The statistical significance adopted was p<0.05. The findings of this study demonstrated there is a positive correlation between the GDS-15 and the kyphosis angle. Besides that, hyperkyphosis was associated with TUG and TLSCV tests and was negative correlation with the tests: VM10mR, VM400m and VM6min. It was observed a positive correlation between depressive symptoms with TUG and TLSCV tests, and a negative correlation with all gait speed tests. In conclusion, there is an association between depressive symptoms and postural deviation with decline in physical performance in postmenopausal women. Furthermore, the interaction between depressive symptoms and postural deviation can predict the decline in physical performance in this population. Tipo: Dissertação 2022-07-29T00:00:00Z http://bdtd.uftm.edu.br/handle/123456789/2099 Título: Controle postural em crianças e adolescentes com escoliose ehígidas Abstract: The delelopment of postural control until adulthood is based on the experience and integration of the visual, proprioceptive and vestibular sensory systems. To evaluate balance, sensory integration and perception of verticality in healthy children and adolescentes with scoliosis. There are two studies: 1 cross-sectional: 23 healthy schoolchildren between 7 and 11 years old and 2 cross-sectional: 14 subjects between 11 and 15 years old. It was used in article 1: TCIS and Mini-BESTest; Article 2: BESTest. Both articles used verticality tests: (SVV) and (SHV). In article 1, a correlations between verticality variables and all domains of two balance tests. In article 2, the student t test and Pearson correlation were used. For article 1, there was a negative correlation between absolute SHV-R and T-AO(R= -0,55; p= 0,006), true SHV-R and APA(R= -0,45;p = 0,031); True SHV-R and dynamic gait (R= -0,43; p= 0,043); true SHV-R and total MBT (R= 0,46; p=0,029). And there was also a very Strong negative association between RSL-AO and OS(R= -0,83; p = 0,005); and a Strong negative association between dynamic gait and B-CA(R= -0,70; p= 0,031) In article 2 we found the results of BESTest, there was a difference between the GE and GC Groups in the domain BTI)(R: -2,9 p= 0,05), in (BTII)(R:-2,94, p =0,05) and in BESTest Total (R:-3,56, p =0,05). The t-test was applied to compare whether there was a difference between the groups and subjectively, we found no difference. For the Pearson Correlation Test between the Risser sign and the vertical subjective measurements, there was a Strong significant correlation between SVV RA(R:0,69) and a Strong positive correlation between the Risser sign and SHV RA (R: 0, 70); We analyzed the Risser sign with the SVV and the BESTest domains, there was a strong negative significant correlation for BT IV (R -0,87). A strong positive association was found between BTI and SHV RA(R: 0,60); BTII and SVV RA(R: 0,60); BTII and SVV LT (R:0,71); BTIII and SVV RT(R: 0,67). Strong negative association between BTI and SHV LA (R: -0,60); BTII and SVV RT(R: -0,60); BTIII and SVV RA (R: -0,67); BTIII and SVV LA (R: -,0,64); BTIII and SVV LT (R: -0,78); BT IV and SVV LA(R: - 0,60); BT Total and SVV LA (R: 0,77); Finally, there was a very Strong negative association between BT V and SVV LA(R: -0,82). In the GC, there was a strong positive association between BT I and SHV RT (R: 0,70); BT I and SHV LR (R: 0,78); BT I and SHV LR (R: 0,80); BT II and SHV LA (R: 0,65); BT VI and SHV RA(R: 0,72); And, strong negative association between BT I and SHV LA(R: -0,76); BT II and SHV LR (R: -,60); BT IV and SHV RA(R: -0, 73); BT V and SVV RA(R: -0,70); BT V and SVV LA (R: -0,62). We found and importante association between haptic and visual perception and functional balance testing. Tipo: Dissertação 2024-07-12T00:00:00Z http://bdtd.uftm.edu.br/handle/123456789/2062 Título: [Efeitos do pré-condicionamento isquêmico na força e no desempenho intermitente] Abstract: In sports competitions, enhancement in the smallest details may cause a significant difference in the final performance. Thus, sports scientists and coaches are always seeking for lawful competition-day interventions that may improve performance. In this context, a maneuver called ischemic preconditioning (IPC) has emerged. The IPC consists in repeated bouts of muscular ischemia followed by reperfusion performed on the proximal limbs (i.e., arms or thigh) before an exercise event. Despite several studies testing the IPC-induced effects on exercise performance in different types of exercise, the beneficial effects of IPC are still debatable. Even meta-analyses show heterogeneous conclusions, showing that more studies are necessary. Therefore, the aim of our study was to evaluate the effect of IPC on: a) high-intensity intermittent exercise and (b) maximal strength. In the first study fifteen players (15.5 ± 0.5 yrs) attended four trials separated by seven days in a counterbalanced randomized cross-over design: IPC (4 × 5-min occlusion 220 mmHg/reperfusion 0 mmHg) in each thigh; SHAM (similar to the IPC protocol but "occlusion" at 20 mmHg); IPC-A and SHAM-A similar to the IPC and SHAM, but with a moderate aerobic activity (70% of HRmáx) on reperfusion phases. After 6-min of each trial, the players performed the YoYo Intermittent Endurance Test level 1 (YoYoIE1). In the second study, fifteen recreational weight-lifters participated in a randomized cross over design, involving two sessions (IPC and SHAM), consisted of three cycles of 5 minutes of occlusion at 170 mm Hg of pressure (IPC) or 20 mmHg (SHAM), alternated by 5 minutes of reperfusion at 0 mm Hg. Ten minutes after, participants performed an 1-RM test on bench press. Our data didn’t found any effect of IPC on intermittent exercise and a slightly increase (~2.4%) on maximal strength, suggesting that IPC can possibly be an ergogenic aid for strength athletes. Tipo: Dissertação 2020-07-17T00:00:00Z http://bdtd.uftm.edu.br/handle/123456789/2013 Título: Treinmento de força em mulheres na pós-menopausa: impacto do volume e da intensidade sobre a recomposição corporal e o desempenho físico funcional Abstract: Menopause is associated with sarcopenic obesity. The strength training can increase muscle mass and decrease body fat, resulting in body recomposition. This condition can be considered a therapeutic target against sarcopenic obesity. However, the most effective strength training program to optimize body recomposition in postmenopausal women remains an area of ongoing research. Thus, the aim of the present study was to investigate whether a strength training protocol with greater intensity and volume would result in greater improvements in body recomposition in postmenopausal women, and to determine whether changes in body recomposition would be associated with changes in physical-functional development and muscle strength. Thus, 43 postmenopausal women were randomly assigned to one of three groups: I) Single set with high load (SSHL, n=14, 1 set of 8 to 12 repetitions maximum), II) Single set with low load (SSLL, n=15, 1 set of 25 to 30 repetitions maximum), and III) Multiple sets with high load (MSHL, n=14, 3-6 sets of 8 to 12 maximum repetitions). We assessment body composition using DXA, physical-functional development using Timed Up and Go and sit and stand tests, and muscle strength using 1RM test. We quantified body recomposition using a composite z-score calculated as follows: (appendicular lean mass % delta z-score) + (-1x fat mass delta % z-score) / 2. Results showed a significant improvement in physical-functional development (P<0.001), significant reductions in visceral adipose tissue, total fat mass, and % fat (P=0.003, P=0.042, and P<0.001, respectively), and increases in muscle mass and strength (P<0.001), regardless of groups. Notably, the higher intensity groups (SSHL and MSHL) had a significantly greater body recomposition compared to the low intensity group (SSLL), especially after adjusting for age, physical activity, and sitting time (P=0.028). Therefore, the intensity of strength training is a critical factor in the body recomposition of postmenopausal women. Furthermore, the positive effects of body recomposition induced by strength training extend to physical-functional development and muscle strength. Tipo: Dissertação 2023-05-08T00:00:00Z