Percorrer por autor "Alves, Ana Ruivo"
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- Concurrent training intensities: a practical approach for program designPublication . Sousa, António; Neiva, Henrique; Izquierdo, Mikel; Alves, Ana Ruivo; Duarte-Mendes, Pedro; Ramalho, André; Mário, Marques; Marinho, DanielSports performance is influenced by the interaction of several physical variables. For this reason, most sports need both strength and endurance capacities to maximize overall performance. Therefore, a combination of resistance and aerobic training, usually called concurrent training (CT), has been used recently as a way of simultaneously improving strength and aerobic performances according to the needs of a specific sport. This combination can be challenging and can influence training adaptations, being a problematic issue for coaches. The main objective is to provide coaches with a practical proposal for CT to improve athletes' performance in different sports.
- Does the inclusion of ballistic exercises during warm-up enhance short distance running performance?Publication . Gil, Maria; Neiva, Henrique; Alves, Ana Ruivo; Sousa, António; Duarte-Mendes, Pedro; Marques, Mário; Marinho, DanielBACKGROUND: Warm-up is considered essential to optimize running performance, but little is known about the effect of specific warm-up tasks, specifically in the real competitive context. The current study aimed to verify the acute effects of a warm-up including ballistic exercises in 30m running performance. In addition, a second 30m trial was assessed to better understand the warm-up effects in training/competition. METHODS: Twenty-two men (19.32±1.43 years-old) randomly completed the time- trials on separate days and after a typical warm-up (WU), a WU complemented with ballistic exercises (post-activation potentiation - PAP) or no warm-up (NWU). Biomechanical, physiological and psychophysiological variables were assessed. RESULTS: The participants were 1.9% faster in the first 30m sprint after WU compared with NWU, mainly increased performance in the first 15m (p=0.03, ES=0.48). WU resulted in greater stride length in the last 15m of the first sprint. PAP did not differ from NWU and WU, despite eight participants performed better after this warm-up. CONCLUSIONS: These results highlight the positive effects of warm- up for sprinting, despite failed to evidence positive effects when ballistic exercises are included. In addition, the influence of warm-up in the running technique was highlighted by the changes in the running kinematics and a need for individualization of warm-up procedures.
- Educação física-motora na aptidão física e conhecimento corporal de sujeitos com deficiênciaPublication . Marta, Carlos; Almeida, Telma da Conceição Rodrigues; Silveira, Paulo; Alves, Ana Ruivo; Casanova, Natalina; Mesquita, HelenaO presente estudo teve como propósito avaliar e comparar o conhecimento corporal e a aptidão física de sujeitos com deficiência, após implementação de programa com duração de seis meses, bem como verificar as propriedades psicométricas de um novo instrumento, através da sua validação factorial exploratória e confirmatória. A bateria de testes multicomponente contemplou quatro dimensões: conhecimento corporal, locomoção, estabilidade e manipulação de objetos. A amostra foi constituída por 162 sujeitos, 69 do género feminino e 93 do género masculino, com uma média de idades de 40.20±12.83 anos, pertencentes a 7 instituições portuguesas do distrito da Guarda, Covilhã e Castelo Branco. A análise factorial exploratória e confirmatória permitiu assumir que o modelo é válido para a população em estudo. Foram verificadas diferenças estatisticamente significativas nas dezanove tarefas da bateria de testes, tendo os sujeitos melhorado a sua aptidão física e o seu conhecimento corporal. Observaram-se diferenças significativas entre géneros no salto horizontal, salto vertical, passe e receção de bola, condução de bola, corrida e resistência. Contudo, não foram observadas diferenças significativas entre géneros, nos parâmetros do conhecimento corporal. Verificou-se ainda uma associação entre a aptidão física e o conhecimento corporal.
- Effects of 10 week multicomponent exercise with different heart rate frequencies on body composition and physical fitness in overweight and obese young school-aged childrenPublication . Alves, Ana Ruivo; Venâncio, Telma; Honório, Samuel; Martins, JúlioIntroduction: During childhood and adolescence, obesity is an important predictor of adulthood obesity. Therefore, there should be given an important care to young population to improve the future of our society. To compare the effects of ten-week multicomponent exercise training with different exercise frequencies on body composition (BC) and physical fitness (PF) in overweight and obese young children. Material and Methods: 40 children, aged 12-15 (14.77 ± 1.49), were randomly selected and assigned to two experimental groups to train 3 times per week (EG1) or twice a week (EG2) for 10 weeks: EG1 (n=10), EG2 (n= 10) groups and a CG group (n= 20; no training program). Results: It was shown that experimental groups (EG1 and EG2) increased aerobic capacity, muscular strength and flexibility from pre- to post-training. The highest gains on muscular strength were observed in experimental group that performed twice a week; but better improvements on flexibility, body mass index (BMI) and body fat percentage (BFP) were observed in experimental group that performed 3 times per week. Conclusions: This type of exercise suggests that performing physical activities 2 or 3 times per week appears to be effective for physical fitness improvement, independently of the exercise frequency. However, to improve BMI and decrease BFP (body fat percentage) exercise frequency will be important in overweight and obese children. This could be a reliable choice to optimize physical fitness and improve well-being in overweight and obese children.