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Browsing Artigos em revistas indexadas by Author "Abade, Eduardo"
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- Effects of Adding Vertical or Horizontal Force-Vector Exercises to In-season General Strength Training on Jumping and Sprinting Performance of Youth Football PlayersPublication . Abade, Eduardo; Silva, Nuno; Ferreira, Ricardo; Baptista, Jorge; Gonçalves, Bruno; Osório, Sofia; Viana, JoãoAbade, E, Silva, N, Ferreira, R, Baptista, J, Gonçalves, B, Osório, S, and Viana, JL. Effects of adding vertical or horizontal force-vector exercises to in-season general strength training on jumping and sprinting performance of youth football players. J Strength Cond Res XX(X): 000-000, 2019-Football is characterized by short-term high-intensity triaxial activities that require optimized neuromuscular capacity. Thus, training routines must consider the direction of force application, particularly when strength exercises are performed. This study aimed to explore the effects of adding vertical or horizontal force-vector exercises to a 20-week in-season general strength training program on jumping and sprinting performance of youth football players. Twenty-four well-trained male under-17 players participated in this study and were randomly assigned to a control, vertical, or horizontal training group. Control group performed a general strength training program (free weights, eccentric-overload, and body mass exercises) once a week during 20 weeks. Vertical and horizontal groups additionally performed back-half-squat or barbell hip-thrust, respectively. Vertical group improved vertical jump (VJ) (squat jump, likely 4.5; ±4.4% and countermovement jump, likely 4.9; ±4.1%), horizontal jump (HJ) (most likely 7.5; ±2.7%), and sprint (10 m, likely -1.6; ±2.0% and 20 m, very likely -3.3; ±1.6%). The horizontal group showed unclear results in VJ; however, large improvements were observed in HJ (most likely, 13.0; ±4.8%), 10 m and 20 m (very likely -3.0; ±1.8% and most likely -3.8; ±1.0%, respectively). Back-squat and hip-thrust showed an important transference effect to both jumping and sprinting performance. If considering the effects of back-squat on VJ, hip-thrust improved HJ and sprint to a greater extent. This study reinforces the importance of performing both vertical and horizontal force-vector exercises to enhance physical performance during football in-season, even when performed only once a week.
- Effects of different re-warm up activities in football players' performancePublication . Abade, Eduardo; Sampaio, Jaime; Gonçalves, Bruno; Baptista, Jorge; Alves, Alberto; Viana, JoãoWarm up routines are commonly used to optimize football performance and prevent injuries. Yet, official pre-match protocols may require players to passively rest for approximately 10 to 15 minutes between the warm up and the beginning of the match. Therefore, the aim of this study was to explore the effect of different re-warm up activities on the physical performance of football players. Twenty-Two Portuguese elite under-19 football players participated in the study conducted during the competitive season. Different re-warm up protocols were performed 6 minutes after the same standardized warm up in 4 consecutive days in a crossover controlled approach: without, eccentric, plyometric and repeated changes of direction. Vertical jump and Sprint performances were tested immediately after warm up and 12 minutes after warm up. Results showed that repeated changes of direction and plyometrics presented beneficial effects to jump and sprint. Different practical implications may be taken from the eccentric protocol since a vertical jump impairment was observed, suggesting a possibly harmful effect. The absence of re-warm up activities may be detrimental to players' physical performance. However, the inclusion of re-warm up prior to match is a complex issue, since the manipulation of volume, intensity and recovery may positively or negatively affect the subsequent performance. In fact, this exploratory study shows that eccentric exercise may be harmful for physical performance when performed prior a football match. However, plyometric and repeated changes of direction exercises seem to be simple, quick and efficient activities to attenuate losses in vertical jump and sprint capacity after warm up. Coaches should aim to develop individual optimal exercise modes in order to optimize physical performance after re warm activities.
- Effects of noise on postural stability when in the standing positionPublication . Azevedo, Rui; Teixeira, Nuno; Abade, Eduardo; Carvalho, AlbertoLoss of postural stability may result in postural imbalance and can increase the risk of slips and falls in the workplace.
- Effects of using compound or complex strength-power training during in-season in team sportsPublication . Abade, Eduardo; Sampaio, Jaime; Santos, Luis; Gonçalves, Bruno; Sá, Paulo; Carvalho, Ana; Gouveia, Paulo; Viana, JoãoLiterature is scarce on how players with poorly and well developed physical qualities respond to different combinations of strength-power training during in-season. The aim of this study was to investigate the effects of (i) compound training performed by stronger athletes at different days and (ii) complex training performed by weaker athletes within the same training session. Twenty male handball players were classified as strong or weak according to countermovement jump performance and assigned to a 12-week training programme. Linear sprint, changes of direction, repeated sprint ability and vertical jump capacity were used to assess physical profiles. Compound training performed by stronger players resulted in unclear effects on vertical jump, 20-m and repeated sprint. Likely improvements were found in 10-m sprint (-11.3%; 11.9%). Weaker players who performed complex training presented likely and very likely improvements on vertical jump (13.7%; 5.4%), sprint (10 m, -10.7%; 10.3%; 20 m, -6.0%; 3.4%) and repeated sprint (-4.1%; 3.7%) with moderate to large effect size. The results show that complex and compound strategies are useful in improving the physical profiles of weaker players and maintaining stronger players' capacities during in-season, respectively. Players involved in the same competitive context, even from the same team, may require different strength training strategies.
- Is it important to know the load mass in lifting tasks to prevent falls?Publication . Azevedo, Rui; Mourão, Paulo; Abade, Eduardo; Carvalho, AlbertoLifting objects without knowing its weight may result in postural imbalances and be a risk factor for falls.
- The influence of height on a 10 week flexibility program applied in physical education classesPublication . Martins, Ricardo; Abade, Eduardo; Viana, João Luís; Marcelino, RuiPhysical Education plays a role helping students acquire long-lasting habits of physical activity and sports that will improve their overall health. Improving flexibility, namely through hamstring stretching, will help execute and sustain the motor activities in the daily life of students. The aim of the present study was to understand the influence of height in a flexibility program in physical education classes. The subjects of this investigation were 61 (35 males and 26 females) divided in two separated groups (control and experimental) in the ages of 10-18 years old (M= 12.96 ± 2.83) and height between 125-178cm (M= 152.84 ± 6.36) all of participants were students of elementary and high school from two different schools in Portugal. The intervention was conducted in ten consecutive weeks, being planned within three assessments (initial, intermediate and final) and all of the subjects were evaluated in hamstring flexibility through Active Knee Extension. The results of this study strongly suggest that the height has no influence on the flexibility of the students.