Motricidade ISSN: 1646-107X [email protected] Edições Desafio Singular Portugal Abstracts of the International Congress of Research Center in Sports Sciences, Health Sciences & Human Development (2016) Motricidade, vol. 13, núm. 1, 2017, pp. 101-227 Edições Desafio Singular Vila Real, Portugal Available in: http://www.redalyc.org/articulo.oa?id=273051167011 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative 101 | International Congress CIDESD 2016 Comparison of kinematics and joint kinetics between seated -dow n and standing positions in water cycling . Mário J. Costa 1,5 , Carolina Vila -Chã 1,5 , Inês Martins 1, Marco Branco 2, Nuno D. Garrido 3,5 , Tiago M. Barbosa 4,5 1. Polytechnic Institute of Guarda, Portugal ; [email protected] ; 2. Polytechnic Institute of Santarém, Portugal ; 3. University of Trás -os -Montes and Alto Douro, Portugal ; 4. Nanyang Te ch nological University, Singapore ; 5. Research Centre in Sport Sciences, Health Sciences and Human Development , CIDE SD , Portugal INTRODUCTION (79±6 o) and angular velocity peak Water cycling is a fairly recent water (352±4 o/s) were noted in the knee joint for programme in comparison t o head -out the standing position. Whereas , for the aquatic programmes. As far as our ankle joint , higher values were obtained in understanding goes, there are only a few the seated -down condition just for the reports on the acute physiological re sponse maximum (139 ±9 o) and minimum exercising in different bikes (Giacomini et (100 ±9 o). No differences between exercise al., 2009), changing water temperature conditions were fo und in forces acting in the (Yazigi et al., 2013) or using different knee . However, ankle showed a higher tr aining methods (Brasil et al., 2011). maximal horizontal force ( 51±11N ) and However, evidence on the biomechanical torque peak (21 ±7N.m ) while seated -down. adaptations are non -existent yet . The aim of this study was to compare the angular CONCLUSIONS kinematics and joint forces between It can be concluded that angular different pedalling positions in water kinematics are changed when assuming cycling. different pedalling p ositions in water cycling. The higher joint forces occur in the METHODS most distal joint (i.e. the ankle) pedalling Se venteen young women (21.6±1.6 seated -down. years, 58.5±7.9 k g of body mass and 1.60±0.06 m of height) were recruited to REFERENCES ride a stationary underwater bike during one Brasil, R. M., Barreto, A. C., Nogueira, L., Santos, E., minute at the cadence of 149 bpm in two Novaes, J. S., & Reis, V. M. (2011). Comparison of Physiological and Perceptual Responses randomly assigned conditions: (i) standing Between Continuous and Intermittent Cycling. and; (ii) seated -down. Kinematic analysis of Journal of Human Kinetics , 29A , 59 –68. three full revolutions were performed by a https://doi.org/10.2478/v10078 -011 -0060 -7 Giacomini, F., Ditroilo, M., Lucertini, F., De Vito, G., motion capture system (APAS). Kinetic Gatta, G., & Benelli , P. (2009). The characteristics were estimated by 2D inverse cardiovascular response to underwater pedaling dynamics. The maximum and minimum at different intensities: a comparison of 4 different water stationary bikes. The Journal of angles , range of motion, a ngular velocity Sports Medicine and Physical Fitness , 49 (4), 432 – peak, maximal horizontal force, maximal 439. vertical force and torque peak for both knee Yazigi, F., Pinto, S., Colado, J., Escalante, Y., Armada - and ankle joints , were analysed . da -Silva, P. A. S., Brasil, R., & Alves, F. (2013). The cadence and water temperature effect on physiological responses during water cycling. RESULTS European Journal of Sport Science , 13 (6), 659 –665. Higher values of maximum (168±9 o), https://doi.org/10.1080/17461391.2013.77092 4 minimum angles (89±8 o), range of motion STRONG Group – Oral Presentations | 102 Shoulder rotator water training program effects on strength and muscular balance. Comparison with a conventional dry -land program – a pilot study. Sónia Dias 1, Jorge Bravo 1, Nuno Batalha 1,2 1. Departamento de Desporto e Saúd e, Escola de Ciência e Tecnologia, Universidade de Évora, Portugal; [email protected] ; 2. Research Centre of Sports, Health and Human Development, CIDESD, STRONG Research Community. INTRODUCTION external rotator (ER) and unilateral ratios Some studies (Wanivenhaus et al., 2012) (ER/IR) were evaluated in concentric have documented that the swimming actions at 60º/s and at 180º/s, performing 3 propulsive forces responsible for total body and 20 repetitions respectively, on an displacement are mainly produced by the isokinetic dynamometer (Biodex System 3 - upper limbs, through arm adduction and Biodex Corp., Shirley, NY, USA). shoulder internal rotation, which may lead to an agonist –antagonist muscular RESULTS imbalance, resulting in an injury process. Intra -group analysis showed significant Regarding this issue, some researchers increases in strength only for the shoulder (Swanik et al. 2002) looked for ways to IR of the land group. For the protocol at prevent injuries with dry -land strength 60º/s, there was a trend to increase strength training programs. However, from our on the shou lder ER of the land group. knowledge, there are no studies with w ater Regarding the IR values, differences arose specific strength training programs. This between groups, with higher strength gains pilot study aims to compare the effects of with the dry -land training. The land group two training programs on shoulder rotator increased the unilateral ratios significantly cuff muscles strength and balance in young when compared to the water group. swimmers. METHODS CONCLUSIONS A total of 21 male swimmers were The dr y-land training program proved to assessed and randomly divided in two be more effective than the one conducted in groups: the land group (n=11; 13.18 ± 0.98 the water, reducing the shoulder rotator years old; 49.85 ± 5.77 Kg; 163.18 ± 9.46 muscle imbalances and increasing the IR cm of height; 5.70 ± 0.67 sessions per week) strength in young swimmers. that performed only a dry -land training program, and the water group (n=10; 13.00 REFERENCES Swanik, K. A., Swanik, C. B., Lephart, S. M., & Huxel, ± 1.05 years old; 49.82 ± 8.03 Kg; 160.11 ± K. (2002). The effect of functional training on the 5.88 cm of height; 6.09 0.30 sessions per incidence of shoulder pain and strength in week) which performed a training program intercollegiate swimmers. Journal of Sport Rehabilitation, 11 (2), 140 -154. with exercises exclusively in the water . Both Wanivenhaus, F., Fox, A. J., Ch audhury, S., & Rodeo, groups were evaluated in the beginning of S. A. (2012). Epidemiology of injuries and the season an d after 10 weeks. The peak prevention strategies in competitive swimmers. Sports Health: A Multidisciplinary Approach, 4 (3), torque of the shoulder internal rotator (IR), 246 -251. 103 | International Congress CIDESD 201 6 Re warm -up prior to football matches: is it beneficial for physical performance? Eduardo Abade 1,2, Jaime Sampaio 1, 3, Bruno Gonçalves 1, 3, Jorge Baptista 2, Alberto Alves 1, 2, João Viana 1, 2 1. Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD ; [email protected] ; 2. University Institute of Maia ; 3. University of Trás -os -Montes e Alto Douro INTRODUCTION ±0.3) and a moderate most likely beneficial Warm -up (WU) routines are widely effect in 20 -m (ES= -0.9; ±0.3) explored and commonly accepted for performances. The RCOD presented a optimizing performance and preventing likely/possible beneficial effe ct to CMJ and injury. However, official international pre - AJ, and a moderate likely/most likely match protocols may require players to beneficial effect to 10 -m and 20 -m sprint passively rest for approximately 15 minutes performances. Different practical in the tim e-course between WU and the implications may be taken from the ECC beginning of the match. Therefore, the aim since there was a -5.1±5.6% decrease in of this study was to assess the contribution CMJ height from post -WU to re -WU which of different re warm -up (re -WU) strategies suggests a possible harmful effect when on the physical performance of football compared to CON. players. METHODS Twenty -two Portuguese elite under -19 football players participated in the study conducted during the competitive season. 4 protocols (WU + re -WU) were tested in 4 consecutive days. The protocols differed only in the re -WU strategy applied after the standardized WU: without re -WU (CON), eccent ric re -WU (ECC), plyometric re -WU (PLY) and repeated changes of direction re - WU (RCOD). Vertical jump (counter movement, CMJ; and abalakov, AJ) and Sprint capacity (10 -m and 20 -m) were tested immediately after WU and 12 minutes after WU. The re -WU strategi es were performed 6 minutes after WU. Magnitude -based inferences and precision of estimation were employed in data analysis. RESULTS Both CMJ and AJ performances presented a likely/very likely improvement after PLY Figure 1. Individual and mean changes from post - WU to R -WU in considered performance measures. intervention (~3.8% in CMJ and ~4.8% in AJ) when compared to CON. PLY also showed a moderate very likely beneficial effect in 10 -m (Cohen d; ±90%CL, -0.7; STRONG Group – Oral Presentations | 104 CONCLUSIONS eccentric exercise prior a football match may The absence of re -WU activities in the be harmful for physical performance. time -course between the WU and the However, plyometric and repeated changes beginning of the match may be detrimental of direction e xercises seem to be efficient to players’ physical performance.