DSpace Collection:
http://hdl.handle.net/10174/1704
2024-03-29T11:48:10ZInfluence of the phases of the menstrual cycle on the ability to produce strengt in futsal players
http://hdl.handle.net/10174/31428
Title: Influence of the phases of the menstrual cycle on the ability to produce strengt in futsal players
Authors: Nabo, Joana; Batalha, Nuno; Silva, Vanda; Manteigas, Francisco; Baia, Miguel; Parraca, Jose
Editors: Fonseca, Manuel
Abstract: This study was designed to evaluate and compare the total strength and resistance strength of the lower limbs of futsal players during the follicular and luteal phases of the menstrual cycle. In this investigation, 14 women, aged between 17 and 33 years old, were evaluated, and each one performed two evaluations of each test, corresponding to the phases of the menstrual cycle: test of global force evaluation with the manual dynamometer (Baseline Smedley Digital, model 12-0286) and lower limb muscle strength test at different angular velocities (60º and 180º/s) with the isokinetic dynamometer (Biodex, System 3). The mean values of the evaluated parameters were, in each phase of the menstrual cycle: dominant upper limb – follicular and luteal phases: 30.571 ± 5.198 vs 31.200 ± 4.917 kg; peak torque at isokinetic knee extension - follicular and luteal phases: 177.714 ± 32.573 vs 175.443 ± 27.272 N • m. Based on the results obtained,
it was concluded that, between the menstrual cycle phases, there were no significant differences in the total muscle strength production and in the dominant lower limb of futsal players2020-04-04T23:00:00ZCan Tracking Data Help in Assessing Interpersonal Contact Exposure in Team Sports during the COVID-19 Pandemic?
http://hdl.handle.net/10174/28275
Title: Can Tracking Data Help in Assessing Interpersonal Contact Exposure in Team Sports during the COVID-19 Pandemic?
Authors: Gonçalves, Bruno; Mendes, Romeu; Folgado, Hugo; Figueiredo, Pedro; Travassos, Bruno; Barros, Henrique; Campos-Fernandes, Adalberto; Beckert, Paulo; Brito, João
Abstract: During the COVID-19 pandemic, the temporary closure of physical activity and sports facilities, and the generalized cancellation or postponement of sports events have a massive impact on social and economic development. In this study, we explored the feasibility of using tracking data from a football match to assess interpersonal contact between individuals by calculating two measures of respiratory exposure. The dynamic tracking positioning of all players and referees during one international football match was analyzed. For each individual, two measures of respiratory exposure were calculated, based on the 2 m interpersonal distance recommendations for contact tracing for COVID-19 control. Overall, individuals spent a median of 0.12 mm/ss (IQR = 0.45 mm/ss) exposed to interpersonal contact of fewer than 2 m from others. The highest value of exposure was observed between two players of opposing teams (6.35 mm/ss). The results suggest that tracking data can be used to assess respiratory exposure to interpersonal contact in team sports, such as football. The measures of exposure calculated can be used to the prompt identification of high-risk contacts of COVID-19 cases during a match or a training session, but also the risk stratification of different sports and physical activities.2020-01-01T00:00:00ZCapturing and Quantifying Tactical Behaviors in Small-Sided and Conditioned Games in Soccer: A Systematic Review
http://hdl.handle.net/10174/28269
Title: Capturing and Quantifying Tactical Behaviors in Small-Sided and Conditioned Games in Soccer: A Systematic Review
Authors: Coito, Nuno; Davids, Keith; Folgado, Hugo; Bento, Teresa; Travassos, Bruno
Abstract: Purpose: To systematically describe and analyze the tracking systems, the variables, and the statistical methods used to evaluate the players and teams’ tactical behavior in small-sided and conditioned games (SSCGs). Methods: A search was done in Web of Science, PubMed, Science Direct, and Scielo databases to identify manuscripts published between 2008 and 2019 that manipulated small-sided and conditioned games (SSCGs) and analyzed tactical behaviors of players and teams. Results: From 349 articles identified, 31 were selected for review. To collect positional data, the global positioning system (GPS), the local position measurement (LPM) system, and TACTO were identified as reliable tracking systems. Twenty-one positional variables were identified to evaluate tactical behaviors, grouped into five main categories: team balance, playing space, width and length of playing space, and interpersonal distance. Tactical behavior patterns were analyzed using approximate entropy, sample entropy, Shannon entropy, and patterns of coordina- tion between players and teams were analyzed using relative phase and running correlation. Discussion: The tracking systems analyzed were reliable but revealed different advantages and disadvantages of their use. Authors should define the use of each tracking system based on their purpose and level of precision required for analysis. A great duplication was observed on the variables used with similar purposes of tactical analysis. The identification of the variables according to their purpose of analysis will allow a better understanding of their use in the future.2020-01-01T00:00:00ZPhysical activity and functional fitness in elderly living in nursing homes or using day care center: an exploratory study.
http://hdl.handle.net/10174/24635
Title: Physical activity and functional fitness in elderly living in nursing homes or using day care center: an exploratory study.
Authors: Ferreira, Soraia; Leite, Nilton; Marmeleira, José; Raimundo, Armando
Abstract: Introduction. The loss of physical function, health problems, limited sup- port from families and few financial resources, leads to institutionaliza- tion. Currently, one of the problems associated with institutionalization is the higher sedentary behavior and consequent loss of autonomy. There- fore, the main purpose of this study was to examine physical activity (PA) levels and functional fitness of older adults living in nursing homes or using day care center.
Method. Thirty-two older adults (85.5 ± 5.7 years) from both genders (women=24; men=8) participated in this study; 14 nursing home resi- dents and 18-day care center users. Physical activity data were collect- ed through accelerometry. Functional fitness was evaluated with physi- cal fitness field tests.
Results: The participants of this study have extremely low levels of func- tional fitness and PA and high levels of sedentary behavior. In nursing home residents (NH), the mean time in sedentary behavior and moder- ate PA was 9h48min/day and 2.2 min/day, respectively. In the same group, the mean time spent in light PA was 77.5 min/day. In day care center (DCC) users the mean time in sedentary behavior and moderate PA was 7h48min/day and 1.6 min/day, respectively. Older adults at- tending DCC showed better results than nursing home residents in the chair sit-and-reach test (DCC= -12.4±15.7 cm, NH= -22.3±4.1 cm, p=0.037), 6 min walking test (DCC= 270±73.9 min, NH= 167.7±84.4 min, p<0.001) sedentary time (DCC= 7.48±0.2 hours, NH= 9.48±0.94 hours, p<0.01) and average PA (DCC= 82.6±18 counts/min, NH= 58.5±30.5 counts/min, p=0.03). The performance in other tests (30-s chair stand; back scratch; arm curl; 8 foot up-and-go) of functional fit- ness was not statistically different.
Conclusions: Functional fitness and PA levels are very low both in older adults living in nursing homes or in those that are users of DCC. Inter- vention programs are needed for these groups to reverse the decrease of physical fitness and PA, and promoting health and functional status.2018-01-01T00:00:00Z