https://null:443 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. 2019-12-18T23:49:49Z http://hdl.handle.net/20.500.12275/286 Title: Foot modeling affects ankle sagittal plane kinematics during jump-landing Authors: João Pedro Casaca de Rocha Vaz Abstract: The foot-ankle complex is a key-element to mitigate impact forces during jump-landing activities. Biomechanical studies commonly model the foot as a single-segment, which can provide different ankle kinematics compared to a multi-segmented model. Also, it can neglect intersegmental kinematics of the foot-ankle joints, such as the hindfoot-tibia, forefoot-hindfoot, and hallux-forefoot joints, that are used during jump-landing activities. The purpose of this short communication was to compare ankle kinematics between a three- and single-segmented foot models, during forward and lateral single-leg jump-landings. Marker trajectories and synchronized ground reaction forces of 30 participants were collected using motion capture and a force plate, during multidirectional single-leg jump-landings. Ankle kinematics were computed using a three- (hindfoot-tibia) and a single-segmented (ankle) foot models, at initial contact (IC), peak vertical ground reaction force (PvGRF) and peak knee flexion (PKF). Repeated measures ANOVAs were conducted (p < 0.05). The findings of this study showed that during lateral and forward jump-landing directions, the three-segmented foot model exhibited lower hindfoot-tibia dorsiflexion angles (PvGRF and PKF, p < 0.001) and excursions (sagittal: p < 0.001; frontal: p < 0.05) during the weightbearing acceptance phase than the single-segmented model. Overall, the two foot models provided distinctive sagittal ankle kinematics, with lower magnitudes in the hindfoot-tibia of the three-segmented foot. Furthermore, the three-segmented foot model may provide additional and representative kinematic data of the ankle and foot joints, to better comprehend its function, particularly in populations whose foot-ankle complex plays an important role (e.g., dancers). 2019-11-01T00:00:00Z http://hdl.handle.net/20.500.12275/285 Title: Anxiety and depression symptoms among pregnant women with different smoking habits Authors: Raquel Alexandra Gonçalves Costa Abstract: Smoking during pregnancy is a major public health issue. The aim of this study isto describe the smoking habits of women during pregnancy and its association with clinically significant depressive and anxiety symptoms. 382 women answered to a socio-demographic questionnaire, the Hospital Anxiety Depression Scale (HADS) and the Edinburgh Postnatal Depression Scale (EPDS) at 33 weeks of gestation. Among pregnant woman, 284 are non-smokers, 38 are smokers and 60 quitted smoking during pregnancy. There was a significant association between maternal smoking status and marital status, education level and family income per month. Among smokers, the rate of quitters was quite similar among partnered and unpartnered women and higher in women with university degree and with higher family monthly income. There was a significant association between maternal smoking status and clinically significant anxious symptoms [chi 2(2)=8.535, p=0.014]. Among mothers with non-university education, smokers are more likely to have clinically significant anxiety symptoms than quitters (53.6% vs 24.3%) while among mothers in higher income families, smokers are more likely to have clinically significant depressive symptoms than quitters (100% vs 11.1%). This study provides important data to inform effective public health strategies directed to pregnant women. 2019-06-24T00:00:00Z http://hdl.handle.net/20.500.12275/284 Title: Special issue on economic policy in Portugal: innovation, competitiveness, and internationalisation. Editors’ introduction Authors: Ricardo Manuel de Magalhães Pinheiro Alves 2019-10-01T00:00:00Z http://hdl.handle.net/20.500.12275/283 Title: Perceived Environmental Supportiveness Scale: Portuguese Translation, Validation and Adaptation to the Physical Education Domain Authors: Frederico Raposo Abstract: Aim: Grounded on Self-Determination Theory, this study aimed to translate, adapt and validate the Perceived Environmental Supportiveness Scale (PESS) in a sample of Portuguese physical education students. Methods: The global sample was comprised of 964 students (518 females), divided in two groups: the calibration (n = 469) and the validation one (n = 483), all of them enrolled in two Physical Education (PE) classes/week. Results: The analysis provided support for a one factor and 12 items model, which are in line with the values adopted in the methodology (χ² = 196.123, df = 54, p = <.001, SRMR = .035, NNFI = .943, CFI = .954, RMSEA = .074, 90% CI .063-.085). Results express that the models are invariant in all analysis (i.e., calibration vs. validation, male vs. female, and 3rd vs. secondary cycle; three and single factor models). Conclusion: The present study suggests that the PESS with one factor and 12 items has good psychometric properties and can be used to assess perceived need supportive motivational environments provided by PE teachers. Additionally, invariance analysis showed support for the use of the scale in both genders and in the 3rd and secondary cycles. 2019-01-01T00:00:00Z