Browsing by Author "Esteves, Dulce"
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- Análise da procura de informação sobre atividade física nos media sociais onlinePublication . Esteves, Dulce; Pinheiro, Paulo; Brás, Rui; O'Hara, Kelly; Zuzda, YolandaOs media sociais online apresentam oportunidades para a promoção de um estilo de vida saudável, por poderem proporcionar um suporte social que incentive a adoção de comportamentos mais ativos. Para isso, é necessário que os indivíduos procurem informações sobre atividade física nesses canais. O objetivo desta investigação é avaliar a extensão do uso dos media sociais online como fontes de informação sobre exercício físico. Foram inquiridos 1034 portugueses (49,6% homens, 50,4% mulheres), 423 ± 20.6 anos. Os resultados mostram que apenas 9.9% dos inquiridos procuram informações sobre atividade física nos media sociais online e que 65.6% dos usuários da Internet não procuram nenhuma informação relacionada com o exercício. As potencialidades dos media sociais para a promoção da atividade física não estão a ser aproveitadas, pois poucos indivíduos reportam esses canais como fontes de informação sobre o exercício ou sobre a locais/equipamentos relacionados com a prática de atividade física.
- Avaliação dos efeitos de um programa de exercício físico em mulheres sobreviventes de cancro da mamaPublication . Antunes, Pedro Miguel da Silva; Esteves, Dulce; Moutinho, José Fonseca; O'Hara, Kelly; Brás, Rui; Nunes, CéliaPor ano em todo o mundo, são diagnosticados cerca de 1.3 milhões de novos casos de cancro mama. Recentemente, o tratamento do cancro da mama obteve progressos substanciais, com consequente aumento de sobreviventes. No entanto, apesar dos benefícios destes tratamentos, o desenvolvimento de efeitos secundários é uma realidade, destacando-se a fadiga, a diminuição da aptidão física e da qualidade devida. Assim, por estes motivos, torna-se fundamental a criação de intervenções que reduzam ou atenuem os efeitos relacionados com a doença e o tratamento do cancro. Atualmente, a investigação que examina a potencialidade do exercício físico em sobreviventes de cancro da mama te conquistado um maior território no campo científico. A American Cancer Society refere que a inatividade deve ser evitada, sendo aconselhado o regresso às atividades básicas da vida diária o mais rápido possível. De facto, o exercício físico é revisto por vários estudos como u meio não farmacológico, eficaz e seguro na promoção da aptidão e funcionalidade física, na diminuição dos efeitos adversos da doença e dos tratamentos , sobretudo, na melhoria da qualidade de ida. Uma revisão quantitativa de 82 ensaios controlados, relacionados com intervenções de atividade física em sobreviventes de cancro, mostrou que o exercício físico é bem tolerado durante e após o tratamento, sendo estes resultados também suportados por uma roundtable do American College of Sports Medicine. Baseado netas evidencias e com o objetivo de avaliar os efeitos dos exercícios físico na aptidão física e na qualidade de vida em mulheres sobreviventes de cancro da mama foi criado o programa piloto MAMA_MOVE orientado especificamente para esta população. Neste estudo participaram 19 mulheres, com idade entre 30-75 anos e com confirmação clínica de cancro da mama com estágio I-III, tendo 11 constituído o grupo de intervenção e 8 o grupo de controlo. Durante 4 meses o grupo de intervenção realizou 3 sessões semanais de exercício físico aeróbio e de força muscular com intensidade moderada. O estudo abarcou 3 momentos de avaliação (inicial, decorridos 2 e 4 meses) tendo sido medido , em todas as participantes, indiretamente a força muscular dos membros inferiores pelo sit-stand test; a força e preensão; a capacidade aeróbia (VO2máx) e a qualidade de vida pelo EORT QLQ-C30. Em resposta ao treino realizado, foram verificadas no grupo de intervenção melhorias significativas no VO2máx (p <0.05) no sit-stand test (p<0.001) e na força de preensão do lado operado (p<0.05) e do lado não operado (p<0.001) não tendo existido qualquer efeito adverso derivado da prática do exercício físico. Foram ainda observadas melhorias significativas na qualidade de vida (p<0.001) e na funcionalidade física (p<0.001). Por outro lado, no grupo de controlo apenas foram constatadas modificações no sit-stand test (p<0.05). Desta forma, confirma-se que o exercício físico é um coadjuvante terapêutico seguro e eficaz na melhoria da aptidão física e da qualidade de vida me mulheres sobrevivente de cancro.
- Effect of the Internet and online social media on awareness of ACSM physical activity recommendationsPublication . Esteves, Dulce; Pinheiro, Paulo; Brás, Rui; Rodrigues, Ricardo Gouveia; Gouveia, Ana; O'Hara, Kelly; Duarte, PauloIntervention strategies to increase physical activity (PA) that can reach many people in a cost-effective manner are desired. Web-based interventions have shown promising results, but little investigation focus the effect of use Internet Sites and online social media as information sources on PA knowledge. This investigation aims to evaluate the effect of seeking for PA information on Internet Sites and online social media on awareness of ACSM PA recommendations for health promotion, among college students. The study included a randomly recruited sample of 658 college students (32.1% males; 67.9% females), aged 20.8, SD 2.9 years. A survey was designed to evaluate the use different PA information sources and the awareness of ACSM PA recommendations. 63.2% of respondents were not accurately knowledgeable of the ACSM PA recommendations. Interviewed use Internet Sites (55.8%) and online social media (29.1%) to seek for PA information. Looking for PA information online presents a negative influence on awareness of ACSM recommendations (P= .003 for Internet Sites and P= .022 for online social media).Despite efforts to promote PA and widespread knowledge on ACSM recommendations, about two thirds of interviewed students can not accurately identify adequate PA characteristics for health improvement. The use of new information technologies as PA information source seems to lead to lower level of knowledge, what could be related with poor quality of PA information on web.
- Effects of Backpacks on Ground Reaction Forces in Children of Different Ages When Walking, Running, and JumpingPublication . Barbosa, João P.; Marques, MC; Neiva, Henrique; Esteves, Dulce; Alonso-Martínez, Alicia M; Izquierdo, Mikel; Ramirez-Campillo, Rodrigo; Alvarez, Cristian; Marinho, DanielBackpacks for transporting school loads are heavily utilized by children, and their mechanical advantages have been allowing children to transport heavy loads. These heavy loads may increase ground reaction forces (GRFs), which can have a negative effect on joints and bone health. The aim of this study was to investigate the effect of backpacks on the GRFs generated by children during walking, running, and jumping. Twenty-one children from the fifth (G-5, n = 9) and ninth (G-9, n = 12) grades walked, ran, and jumped over a force plate. When walking, the G-5 had GRF increments in the first (17.3%; p < 0.001) and second (15.4%; p < 0.001) peak magnitude, and in the total integral of the vertical force (20%; p < 0.001), compared to the control condition (i.e., no backpack), and the G-9 had increments of 10.4%, 9%, and 9% (p < 0.001), respectively. The G-9 did not prolong their total stance time (p > 0.05), unlike the G-5 (p = 0.001). When running, total stance time increased 15% (p < 0.001) and 8.5% (p < 0.001) proportionally to the relative load carried, in the G-5 and G-9, respectively. Peak GRF did not increase in any group when running or landing from a jump over an obstacle. It was found that GRF was affected by the backpack load when walking and running. However, when landing from a jump with the backpack, schoolchildren smoothed the landing by prolonging the reception time and thus avoiding GRF peak magnitudes.
- Effects of physical exercise on outcomes of cardiac (dys)function in women with breast cancer undergoing anthracycline or trastuzumab treatment: study protocol for a systematic reviewPublication . Antunes, Pedro Miguel da Silva; Esteves, Dulce; Nunes, Célia; Amarelo, Anabela; Moutinho, José Fonseca; Afreixo, Vera; Costa, Henrique; Alves, Alberto; Joaquim, AnaCardiotoxicity is a known complication and one of the most adverse effects from the use of conventional treatments such as anthracyclines and trastuzumab in breast cancer (BC) care. This phenomenon has been associated with the restriction of therapeutic options and the increase of cardiovascular complications, which may compromise the survival of patients. Implementation of preventive strategies is an important approach for the management of this issue. Physical exercise has been proposed as a non-pharmacological strategy to counteracting cardiotoxicity. The aim of this protocol is to describe the rationale and methods for a systematic review of published randomized controlled trials (RCTs) that have analysed the effects of physical exercise on outcomes of cardiac (dys)function in women with BC undergoing neoadjuvant or adjuvant treatment containing anthracyclines and/or trastuzumab.
- Evaluation of Risks and Benefits of Physical Activity: Fighting a Societal BurdenPublication . Brás, Rui; Esteves, Dulce; Rodrigues, Ricardo; Duarte, Paulo; Gouveia, Ana; O'Hara, Kelly; Pinheiro, PauloPhysical Activity (PA) is considered a coadjutant factor in the control of hypertension, helping to control this societal burden. This study investigates the factors that may influence the adoption of PA recommendations by hypertensive individuals by comparing physical activity patterns among hypertensives and normotensives and the importance placed on PA by both groups. Data from 966 Portuguese participants aged between 18 to 90 years old, representing hypertensives (n=144) and normotensives (n=822) were collected using a face-to-face questionnaire. The results show significant differences between the two groups in terms of causes of non-participation and dropping out, preferred PA activities, perceived knowledge, and information-seeking behaviour. The main barriers to exercise reported by hypertensives were the perception that PA is not adequate or even dangerous to their health. Doctors must be considered a key factor in promoting exercise. When compared to normotensives, hypertensives feel that PA information available is not appropriate (p=.0006). Hypertensives consider that existing programmes will not meet their needs and do not like traditional fitness classes, such as those in gyms. The fear of risks associated with exercise seems to be a significant barrier that impairs PA participation.
- Health-related quality of life and physical fitness in breast cancer patients: the impact of a supervised physical exercise program in women with no exercise experiencePublication . Antunes, Pedro Miguel da Silva; Esteves, Dulce; Nunes, Célia; Joaquim, Ana; Pimentel, Francisco; Moutinho, José FonsecaAfter breast cancer diagnosis (BCD), localized breast cancer (BC) patients are treated with curative intent by several therapeutic modalities. Despite the benefit of those therapies, the induction of side effects is acommon consequence affecting psychosocial and physiological outcomes. This quasi-experimental study compared physical fitness in recent-term (14–30 months; n= 11) and later-term (74–92 months; n= 8) BCD patients. After inclusion, recent-term BCD patients were engaged in asupervised exercise program and was explored its impact on physical fitness, health-related quality of life (HR-QOL) and fatigue. At baseline (M1) and after 8 (M2) and 16 weeks (M3) of this period, HR-QOL and fatigue were evaluated by the EORTC QLQ-C30 questionnaire and physical fitness through the estimation of maximum oxygen consumption (VO2max,ml.kg.min–1), handgrip force (kg) and sit-stand test. At baseline, women with later-term BCD have revealed better VO2max (p < 0.05) than recent-term BCD patients. There was asignificant time*group interaction for physical fitness outcomes and only the patients who have participated in the exercise program reported significant changes between baseline and at 16 weeks. The observed results demonstrated that performing regular exercise is associated with effective psychosocial and physiological recovery after BCD.
- Impact of exercise training on cardiotoxicity and cardiac health outcomes in women with breast cancer anthracycline chemotherapy: a study protocol for a randomized controlled trialPublication . Antunes, Pedro Miguel da Silva; Esteves, Dulce; Nunes, Célia; Sampaio, Francisco; Ascensão, António; Vilela, Eduardo; Teixeira, Madalena; Amarelo, Anabela Leal; Joaquim, AnaAnthracyclines are chemotherapeutic agents frequently used in breast cancer (BC) treatment. Although it improves disease-free and overall survival, the use of anthracyclines is associated with a cumulative risk of cardiac toxicity. Preventive strategies to optimize cardiac health are needed and exercise is proposed as a potential non-pharmacological approach for counteracting anthracycline-related cardiotoxicity (ARC). Most of the data on the effects of exercise to reduce ACT are from animal studies, with only a few studies in a limited number of patients indicating beneficial effects. To better understand the effectiveness of exercise in the mitigation of ARC, clinical, real-world trials claim require a larger sample size and more accurate and valuable clinical biomarkers. In this study, we intend to include a large sample and investigate cardiac function through serial measures of biomarkers and imaging techniques.
- Internet and Social Network as Health/Physical Activity Information SourcesPublication . Esteves, Dulce; Pinheiro, Paulo; O'Hara, Kelly; Brás, RuiThe Internet increasingly serves as a platform for the delivery of health information and its potential use as health information source has been demonstrated across a wide range of conditions (Bennett & Glasgow, 2009). The Internet has been acknowledged as a valuable channel of health promotion, with information in web spread throw static health educational sites, peer support groups, online health consultations and delivery of Internet interventions (Vandelanotte, Spathonis, Eakin, & Owen, 2007). [...]
- Motor intervention and assessment instruments in Autism Spectrum DisordersPublication . Lourenço, Carla; Esteves, DulceAbstract The practice of physical activity in people with disabilities provides important health benefits (Wind, Schwend, & Larson, 2004; Chanias, Reid, & Hoover, 1998), particularly in individuals with autism spectrum disorder (ASD). Several motor interventions have been suggested as beneficial for this population. Considering this variety, it is important to synthesize the different existing programs, the population in which they are applied. This research aims to review the motor interventions used in children with ASD, as well as the evaluation methods used, so that it becomes clear what the options are for motor work with this population. All the studies presented showed improvements in participants. A literature search was conducted in Web of Science, SCOPUS and Google Scholar 2013, to include research studies that evaluate motor intervention in children with ASD. Fifteen studies meet inclusion criteria. Results show that motor intervention programs that have been carried out are quite diverse, from dance, trampoline training, balance training or fundamental motor skills, for example, to evaluate motor skills which used different test batteries, one of the most common is the motor proficiency test of Bruininks-Oseretsky. On the other hand, other methods were used to evaluate the social interaction like Gilliam Autism Rating Scale or Autism Rating Scale. We conclude that to improve the motor fitness of children with ASD different strategies can be followed. As the revised programs use different evaluation tools, it is difficult to compare the results obtained with each other. A motor intervention that comprises different types of exercises and materials, using ludic exercises may be a potentially more effective strategy.