Artigos em revistas internacionais - ESDRM
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- Effective techniques analysis in taekwondo: a systematic reviewPublication . Sousa, José L.; Gamonales, José M.; Hernández-Beltrán, Víctor; Louro, Hugo; Ibáñez, Sergio J.The Korean martial art Taekwondo has been an official Olympic sport since the 2000 Sydney Olympics. Taekwondo is a full contact combat sport where the majority of successful techniques are powerful kicks, which are delivered by hitting the opponent’s chest gear or the head. The aims of this research were: a) carry out a systematic review related to the effective techniques in Taekwondo, and b) know the must use techniques in taekwondo combat. The review was conducted according to the PRISMA-P protocol. The Web of Science, Scopus and SPORTDiscus electronics databases were explored for pertinent published studies according to the following key words: “Taekwondo” and “Technique”, published up to 31st August 2023. To boundary the search, four inclusion criteria were admit ted: i) select only documents from scientific journals, ii) mention at least some of the techniques of Taekwondo (minimum 50 words), iii) journal documents published in English, Spanish and Portuguese, and iv) full text accessible or abstract availability. The sample consisted of 17 documents. In conclusion, the selected documents have allowed the identification and highlighting of different kinds of documents, which report the study of taekwondo associated with technique. The technique most studied in taekwondo is the round house kick (Korean terminology: “bandal chagui” - kick to the chest gear or “dollyo chagui” - kick to the helmet gear).
- Detraining and retraining effects from a multicomponent training program on the functional capacity and health profile of physically active prehypertensive older womenPublication . Leitão, Luis; Campos, Yuri; Louro, Hugo; Figueira, Ana Cristina Corrêa; Figueiredo, Teresa; Pereira, Ana; Conceição, Ana; Marinho, Daniel A.; Neiva, Henrique P.Background: Resuming a physical exercise program after a period of cessation is common in older women. Monitoring the responses during this detraining (DT) and retraining (RT) may allow us to analyze how the body reacts to an increase and a reduction in physical inactivity. Therefore, we conducted a follow-up training, DT, and RT in prehypertensive older women to analyze the response to these periods. Methods: Twenty-three prehypertensive older women (EG; 68.3 ± 2.8 years; 1.61 ± 0.44 m) performed 36 weeks of the multicomponent training program (MTP) followed by twelve weeks of DT plus eight weeks of RT. Fifteen prehypertensive older women (CG; 66.3 ± 3.2 years; 1.59 ± 0.37 m) maintained their normal routine. Functional capacity (FC), lipid, and hemodynamic profile were assessed before, during 24 and 36 weeks of the MTP, after 4 and 12 weeks of DT, and after 8 weeks of RT. Results: After 24 weeks of the MTP, only SBP did not improve. Four weeks of DT did not affect lower body strength (30-CS), TC, or GL. Eight weeks of RT improved BP (SBP: −2.52%; ES: 0.36; p < 0.00; DBP: −1.45%; ES: 0.44; p < 0.02), handgrip strength (3.77%; ES: 0.51; p < 0.00), and 30-CS (3.17%; ES: 0.38; p < 0.04) compared with 36 weeks of the MTP. Conclusions: Eight weeks of RT allowed patients to recover the benefits lost with detraining, which after only four weeks affected them negatively, and the systematic practice of exercise contributed to greater regulation of BP since 24 weeks of the MTP proved not to be enough to promote positive effects of SBP.
- Sprint performance determinants in high level young swimmersPublication . Matos, Carolina L.; Conceição, Ana; Louro, Hugo; Neiva, Henrique P.; Sobreiro, Pedro; Viana, Bárbara L.; Marinho, Daniel A.Background: Identifying and evaluating the variables that influence performance are essential for obtaining excellence in sport. Objective: This study aimed to identify which parameters have the most influence on the 50 meters freestyle time in young competitive swimmers. Methods: One hundred and eighty-four high-level swimmers (males, n=92: 14.60±0.56 years; females, n=92: 13.53 ± 0.54 years) with 468±66 FINA points in the 50 meters freestyle short course participated in this study. Age, height, body mass, wingspan, stroke rate, stroke length, stroke index, turning time (5 m + 10 m), horizontal jumping, and medicine ball throwing were assessed. The swimming performance was assessed in a 50 meters freestyle time trial at maximum speed in a 25 meters swimming pool. Multiple regression was performed to assess the relationship between one dependent variable (50 meters freestyle time) and independent variables. Results: The results showed significant differences between both the genders. In male swimmers, only the turning time and the horizontal jump were significant (r2 =0.8819; p<0.001), while females, besides the same variables, presented significant results in terms of height, body mass, stroke length, and stroke index (r2 =0.9013; p<0.01). Conclusion: In conclusion, in young male swimmers, the turning time and the horizontal jump contributed significantly to the 50 meters freestyle swimming performance, and in young female swimmers, the main contributors were the turning time, horizontal jump, height, body mass, stroke length, and stroke index.
- Can acute mobilization and oscillation training profit on the joint position sense and strength of the rotator cuff muscles in young tennis players?Publication . Molaee, Faeze; Shahmir, Mohammad; Oliveira, Rafael; Mohammadi Nia Samakosh, Hadi; Hajrezaee, Behnaz; Sarvari Far, Behrooz; Paolo Ardigò, Luca; Badicu, GeorgianThe rotator cuff is a group of muscles and tendons that act to stabilize the human shoulder and allow for its extensive range of motion. This study aimed to compare the immediate effect and durability of mobilization and oscillation dumbbell (OD) training on the Joint Position Sense (JPS) and strength of rotator cuff muscles in young tennis players. Twenty-six tennis players were divided into two experimental groups. G1 only performed mobilization techniques while G2 only performed OD training, before, after and after one week of the protocols, the strength and JPS of the shoulder joint were measured with an isokinetic dynamometer. Repeated analysis of variance (RMANOVA) and Bonferroni post hoc test were used to examine the differences between the groups. The analysis of covariance was used to examine the differences between the groups. In general, the results showed a significant effect of both mobilization techniques and OD training programs on the JPS and internal and external rotation strength of young tennis players, but only one difference was observed between the two in external rotation for the eccentric/concentric action at 120°/sec (p=0009; ƞ2p= 0.32). Moreover, the main findings showed that mobilization techniques and OD improved internal and external rotations after the protocol and after one week when compared with baseline for the concentric/concentric and eccentric/concentric at 60°/sec and 120°/sec (p < 0.05) with only one exception for the internal rotation concentric/concentric at 120°/sec for both groups (p > 0.05). Based on this, it seems that in healthy tennis players, both one-session mobilization techniques and OD training can be used to improve JPS and strength.
- A comprehensive review of the effects of cherry juice and chocolate milk supplementation on football performance and recoveryPublication . Morgans, Ryland; Lee, DONGYOON; DI VIRGILIO, Thomas; Ryan, Ben; Oliveira, RafaelBackground: Football matches and training sessions can induce metabolic and mechanical stress, leading to inflammation, oxidative stress, and muscle damage, all of which may negatively impact subsequent performance. Montmorency tart cherry, rich in phytochemicals and anthocyanins, is believed to aid in recovery and alleviate muscle soreness. Similarly, chocolate milk may promote glycogen synthesis, protein synthesis, and rehydration. The aim of this study is to review the effects of cherry juice and chocolate milk on athletes and summarize results to inform future research on football recovery. Methods: This comprehensive review identified relevant literature through an extensive search of the PubMed, Scopus, ScienceDirect, and SPORTDiscus databases, using combinations of keywords related to cherry juice, chocolate milk, and exercise. Studies were selected based on specific inclusion and exclusion criteria. Results: A total of 372 studies were identified through the search [Cherry juice: n = 137; Chocolate milk: n = 235]. After assessing eligibility, 27 studies were included based on the inclusion and exclusion criteria [Cherry juice: n = 14; Chocolate milk: n = 13]. These studies investigated the effects of cherry juice and chocolate milk on various aspects of post-training or post-competition recovery, including muscle damage, inflammation, oxidative stress, and physical performance in athletes from different sports. Conclusion: Based on the reviewed literature, the ingestion of cherry juice and chocolate milk has the potential to reduce muscle damage and soreness and enhance recovery after exercise and physical activities in athletes from various sports. These positive results suggest that cherry juice and chocolate milk may also benefit football players as recovery strategies. However, further research is needed to determine the optimal dosage, timing, and duration of supplementation, as well as the long-term effects on recovery and performance in football-specific contexts.
- Physical match performance of elite soccer players from the English Championship League and the English Premier League:The effects of opponent ranking and positional differencesPublication . Morgans, Ryland; Michele, Rocco Di; Ceylan, Ibrahim H.; Ryan, Ben; Haslam, Chris; King, Matthew; Zmijewski, Piotr; Oliveira, RafaelThis study aimed to examine physical match performance and the effects of opponent ranking and positional differences in both the English Championship League (ECL) and the English Premier League (EPL) over five consecutive seasons. Fifty-four professional outfield soccer players (average age 24.6±5.4 years, weight 76.6±6.9 kg, height 1.79±0.09 m) from an English club were involved. Physical data obtained with the 18 Hz GPS technology tracking system from 213 regular-season matchesspanning the complete 2018/19 to 2022/23 seasons were examined. The results showed that, considering the level of the opponent, total distance (TD), high-intensity distance (HSR), and the number of decelerations (DEC) significantly varied in both EPL and ECL(p < 0.05, p < 0.05, p < 0.05 respectively). Additionally, opponent level influenced sprint distances (Spr) and accelerations (ACC) in the EPL (p < 0.05, p < 0.05) but not in the ECL. The highest running metrics were noted when the team played against a high-ranked opponent. Concerning positional roles, more physical metrics were influenced by opponent level in the ECL (centre-backs (TD, ACC), full-backs (TD, DEC), centre midfielders (TD, HSR, Spr, DEC), attacking midfielders (TD, Spr, DEC), centre forwards (TD)) than in the EPL (centre midfielders (TD, HSR, DEC), attacking midfielders (TD, DEC), centre forwards (TD)). These findings contribute to a more comprehensive understanding of how players from different positions perform in elite soccer match-play against varying opposition rankings. Coaches may then tailor tactical approaches, positional, and individualized training regimens to address the specific physical demands associated with matches against different-ranked opponents.
- Differential Effects of Verbal Coaching Cues and Analogies on Sprint Performance in Youth Male Soccer Players Across Grass and Indoor SurfacesPublication . Nebigh, Ammar; Hammami, Raouf; Stefanica, Valentina; Murathan, Talha; Ozdemir, Kubra; Yildiz, Mevlut; Oliveira, Rafael; Mahmoud, Abdelkader; Ibrahim Ceylan, Halil; Ioan Muntean, RaulThere is a limited body of research concerning the impact of different attentional foci on the performance or retention of fundamental motor skills in young individuals. Additionally, the influence of verbal cues on sprint performance across various surfaces, such as grass and indoor basketball courts, remains understudied. Therefore, the primary objective of this study was to assess the effectiveness of Internal Cues (IC), External Cues (EC), and analogies with a directional component (ADC) on sprint performance among youth soccer players on different surfaces (grass vs. indoor basketball court). Seventy participants, aged 12.3±0.5 years, with a maturity offset of -0.9±0.5 years, were recruited for this investigation. Multiple 20-meter sprint tests were conducted on both grass and indoor basketball courts using different coaching cues: a control/neutral cue, an internal cue, an external cue, and analogies (away and toward). The analyses did not reveal significant differences (p ≥ 0.05) between cue types for both sprinting on grass and indoor surfaces. However, in post-hoc analyses for indoor sprints, significant distinctions were noted between ECs and ICs, favoring ECs (p < 0.01), as well as between "away" ADC and IC, favoring the "away" ADC (p < 0.01). Similar significant differences were observed for grass sprints, with ECs and "away" ADCs showing superiority over ICs (p < 0.01). 2 2024 37(11 ) In conclusion, the study did not find evidence supporting specific instructional types' positive impact on youth's sprint performance on both grass and indoor surfaces. Notwithstanding, ECs and ADCs seemed to be more effective coaching strategies for improving sprinting performance in youth soccer players. Additionally, motivating young soccer players to give their maximum effort seemed to be a beneficial cueing method for enhancing sprint ability on different surfaces.
- Development and validation of a physical exercise training program for women diagnosed with Fibromyalgia “Pessoas com Fibra” (People with Fiber). A pilot studyPublication . Sousa, Mónica; MOUTÃO, JOÃO; Oliveira, Rafael; Alves, SusanaFibromyalgia is a chronic disease that affects patients’ quality of life, leading to reduced physical activity levels. This problem can therefore be attenuated by promoting physical exercise training programs (PETP). The aim of this pilot study was to develop and validate a PETP, “Pessoas com Fibra”, designed to increase physical activity and improve the quality of life of women diagnosed with Fibromyalgia, aged between 30 and 60. The PETP was designed and validated by physical fitness specialists in accordance with Revised Guidelines for Reporting Criteria on the Development and Evaluation of Complex Health Interventions and the Consensus Guidelines on Physical Exercise Programme Reporting Model. It went through three phases: development, piloting and evaluation. This study presents an intervention proposal based on improving the participants' Fibromyalgia symptoms. “Pessoas com Fibra” program proposal presents suggestions for adaptation to the target population and exercises that can be replicated by professionals in the field of physical exercise and health.
- Effect of additional short sprint training on physical performance in adolescent male soccer players: a systematic review and meta-analysisPublication . Mainer-Pardos, Elena; Kamiş, Okan; Oliveira, Rafael; Nobari, HadiPurpose: The aim of this systematic review with meta-analysis (SRMA) was to evaluate the effects of additional short sprint training with different intervention training programs (i.e. plyometric training, strength training or multidirectional training) on linear sprint, change of direction speeds (CODS) and jump ability performance in young male soccer players. Methods: An electronic database search was performed, and 7 articles were included in the meta-analysis. Results: The players’ mean age ranged from 7.6 to 18.8 years. The duration of combined interventions was from three weeks to 10 months, with training frequency ranging from one to two sessions per week. In general, the results of the performance were associated with a large and significant reduction in the time of CODS (ES -1.60 (95% CI – 2.33, -.87), Z=4.32 (P< .001)]. Moreover, the effects on vertical jump height showed a non-significant and small improvement between pre and post-test on the vertical jump performance [ES .45 (95% CI – .14, .75), Z=2.90 (P= .004)], with an average heterogeneity of I2 = 0%. Conclusions: The current SRMA suggests that although additional short sprint training may produce improvements in certain aspects of performance, efficacy varies depending on individual and training-specific factors.
- External load transition practices from pre-season to in-season. A case study in elite female professional soccer playersPublication . Oliveira, Rafael; Morgans, Ryland; Fernandes, Renato; Brito, João; Espada, Mário C.; Santos, Fernando J.Thestudy aim wastocomparetheexternal load during varying microcycles (M1-M4 during pre-season and M5during the in-season) in elite female Portuguese soccer players and to describe external load variations between differing Ms. Fourteen first-team players partici pated in the study (age 23.29 ± 3.19 years, weight 59.14 ± 6.87 kg, height 1.66 ± 0.08 m). Load measures included total distance, high-speed running (HSR) distance (�15 km/h), number ofaccelerations and decelerations [acceleration 1 (ACC1), >1–2 m/s; acceleration 2 (ACC2), >2–3m/s; acceleration 3 (ACC3), >3–4 m/s; acceleration 4 (ACC4), >4 m/s] and decelerations [deceleration 1 (DEC1), <1–2 m/s; deceleration 2 (DEC2), <2–3 m/s; deceler ation 3 (DEC3), <3–4 m/s; deceleration 4 (DEC4), <4 m/s]. M1 showed higher values of total distance, ACC1, ACC2, ACC3, DEC2,DEC3andDEC4thanM2(p=<0.001–0.04), although HSR washigher inM2(p<0.001). M2showedlowervalues ofHSR, ACC1, DEC1,DEC2,DEC3thanM3(p=0.001–0.04).M3reportedhigher values of total distance, ACC1,ACC2,DEC1,DEC2thanM4(p=<0.001–0.03),whileM4onlyfoundhighervalues of ACC4andDEC4thanM5(both,p=0.01).Thehighestvaluesoccurred inM3for the majority of external load metrics (except ACC3, ACC4, and DEC4 which were higher in M4). However, during the transition from M4 to M5, only ACC4 and DEC4 decreased with all other measures maintained, thus supporting the notion to maintain similar loading patterns during official competition.