Loading...
10 results
Search Results
Now showing 1 - 10 of 10
- Does the distribution of the weekly training load account for the match results of elite professional soccer players?Publication . Oliveira, Rafael; Brito, João; Loureiro, Nuno; Padinha, Vítor; Ferreira, Bruno; Mendes, BrunoThe aim of the study was to compare training load (TL) of the days preceding a win, draw or defeat in asample of elite professional soccer players across the in-season 2015/16.Methods.:Twenty elite soccer players participated in this study. Total distance covered, high-speed running distance(HSRD), average speed, session rate of perceived exertion (s-RPE) and Hooper index scores (HI) were collected. Datafrom 24 weeks with one match were analysed through the match-day (MD-5, 4, 3, 2, 1) and MD+1.Results.:The main finding emerges in MD-1, where a longer training duration preceding draws(95.1 ± 1.5 min) > defeats (91.5 ± 1.6 min) > wins (84.7 ± 0.5 min) was found, while total distance andaverage speed were higher in wins (3628.6 ± 57.2 m) > draws (3391.3 ± 153.3 m) > defeats(3236.1 ± 113.7 m) and draws (130.7 ± 17.6 m/min) > wins (86.0 ± 6.9 m/min) > defeats(54.8 ± 7.1 m/min), respectively. HSRD was higher in draws (42.8 ± 0.6 m) > wins (36.1 ± 1.7 m) >defeats (35.8 ± 1.7 m). In MD+1, there were differences in HI between wins vs draws (p<0.01).Conclusions.:The results are drawn from one team that participated in UEFA Champions League. It was observedthat different TL applied in training sessions can influence match result. Our findings can be considered in futuresoccer planning and periodization to win matches. This study emphasizes the use of HI especially in the dayfollowing the match
- Internal training and match load quantification of one-match week schedules in female first league Portugal soccer teamPublication . Fernandes, R.; Oliveira, Rafael; Martins, Alexandre; Brito, JoãoTraining load (TL) quantification allow coaches to a better load management during training sessions to be in the best physical fitness to the next match. The aim of this study was to compare session rated of perceived exertion (sRPE) and Hooper Index (HI) between training and match days from the same women’s Portuguese League team. Sixteen players with a mean±SD age, height and weight of 24.0±2.9 years, 164±4.1 cm and 58.5±8.2 kg, respectively, participated in this study. The participants completed ≥80% of the training sessions during 2019/20 in-season. Data was collected through the s-RPE and the HI that measured sleep quality, fatigue, stress, and muscle soreness (DOMS). Data was analysed in relation to the number of days away from the competitive one-match week (i.e., match day minus, MD-) with three training sessions a week (MD-5; MD-4; MD-2). The study analysed data from a total of 12 matches and 45 training sessions with repeated measures ANOVA, p≤0.05. Results showed differences between MD- 5 (85.2±0.3min) vs MD-4 (87.2±0.4min) vs MD-2 (80.6±0.6min) vs MD (62.8±4.9min), all p<0.05; s-RPE showed higher values on MD-5 (503.8±19.0au) vs MD-4 (473.2±14.8au) vs MD-2 (362.1±12.1au) vs MD (468.2±40.5au); HI showed higher values on MD-5 (13.4±0.5au) vs MD-4 (13.4±0.4au) vs MD-2 (12.7±0.5au) vs MD (11.9±0.4au); DOMS revealed difference between MD-4 vs MD-2 (3.1±0.2 vs 2.7±0.2au), p<0.05. It was shown that there is a higher TL on MD-5 and MD-4 compared with MD-2. Results from HI showed that sleep, fatigue, stress and DOMS was well fair controlled by coaches and staff.
- Quantificação da carga interna no período preparatório e competitivo em semanas com um jogo numa equipa de futebol masculina sub-17Publication . Oliveira, Rafael; Brito, João; Martins, AlexandreO objetivo do estudo foi comparar a carga interna (CI) dos períodos preparatório e competitivo de jogadores sub-17 da mesma equipa. A perceção subjetiva de esforço foi recolhida em 19 jogadores e multiplicada pela duração da sessão (s-RPE). O estudo analisou um total de 2 jogos e 8 sessões de treino através da aplicação da ANOVA com medidas repetidas. Os principais resultados revelaram valores mais altos na pré-epoca na duração do treino (103,3 vs 90,0 min, p<0,001) no MD-5 e (103,7 vs 96,7 min, p>0,05) no MD-3 do que na época competitiva, respetivamente. A duração da sessão revelou ser mais baixa na pré-época no MD-4 (103,2 vs 112,0 min, p=0,013) e no MD-2 (84,0 vs 97,2 min, p<0.001) do que na época competitiva, respetivamente. A s-RPE apresentou valores mais elevados na pré-epoca comparativamente à época competitiva no MD-5 (725,5 vs 481,3 u.a., p<0,000) e no MD-3 (755,8 vs 655,2 u.a., p=0,031), mas inferiores no MD-4 (705,2 vs 821,3 u.a., p=0,002) e no MD-2 (476,0 vs 559,0 u.a., p=0,020), respetivamente. Este estudo apresenta relevante informação adicional sobre a carga interna para os períodos preparatório e competitivo que pode ser usada para ajustar a periodização em jogadores de futebol sub-17.
- Proceedings of the International Seminar of Physical Education, Leisure and Health,Publication . Oliveira, Rafael; Brito, João; Martins, AlexandreThe aim of this study was to compare internal training load (ITL) of starters versus non-starters from the same under-17 soccer team. Rated of perceived exertion was collected and then multiplied by training or match duration (s-RPE) from twenty-three soccer players. The study analysed a total of 2 matches and 8 training sessions during the in-season with ANOVA with repeated measures. The main results showed higher values in pre-season for training duration (103.3 vs 90.0 min, p=0.000) in MD-5 and (103.7 vs 96.7 min, p>0.05) in MD-3 than in-season, but lower values for training duration (103.2 vs 112.0 min, p=0.013) in MD-4 and (84.0 vs 97.2 min, p=0.000) in MD-2 than in-season. s-RPE was higher in pre-season than inseason (725.5 vs 481.3 a.u., p=0.000) in MD-5 and (755.8 vs 655.2 a.u., p=0.031) in MD-3 but lower (705.2 vs 821.3 a.u., p=0.002) in MD-4 and (476.0 vs 559.0 a.u., p=0.020) in MD-2 than in-season. This study present relevant additional ITL data for pre-season and in-season that could be used to adjust periodization in under-17 soccer players.
- Association between 2D:4D ratios and sprinting, change of direction ability, aerobic fitness, and cumulative workloads in elite youth soccer playersPublication . Nobari, Hadi; Eken, Özgür; Prieto-González, Pablo; Oliveira, Rafael; Brito, JoãoBackground The aim of this study was two-fold: (i) to determine the correlation between 2D:4D, maximal oxygen uptake (VO2max), body fat percentage (BF%), maximum heart rate (HRmax), change of direction (COD), and accumulated acute and chronic workload variables; (ii) to verify if the length of the second digit divided by fourth digit (2D:4D) can explain fitness variables and accumulated training load. Methods Twenty elite young football players (age: 13.26±0.19 years; height: 165.8±11.67 cm; body mass: 50.70±7.56 kg; VO2max, 48.22±2.29 ml.kg−1 .min−1 ) participated in the present study. Anthropometric and body composition variables (e.g., height, body mass, sitting height, age, BF%, body mass index, right and left finger 2D:4D ratios) were measured. The following fitness tests were also conducted: 30−15 Intermittent Fitness Test (VO2max and HRmax), COD (5-0-5 agility test), and speed (10-30msprint test. HRmax and the training load were also measured and monitored using the Rate of Perceived Exertion during the 26 weeks. Results There were associations between HRmax and VO2max, between 2D and 4D lengths and Left and Right hand ratios. Also, in AW with Right and Left 4D. The CW and de ACWR with the Right 4D. There were other associations between physical test variables and workload variables. Conclusions Under-14 soccer players with low right and left-hand 2D:4D ratios did not perform better in the selected fitness tests to assess VO2max, COD, or sprint ability. However, it cannot be ruled out that the absence of statistically significant results may be related to the small sample size and the maturational heterogeneity of the participants.
- Are non-starters accumulating enough load compared with starters? Examining load, wellness, and training/match ratios of a European professional soccer teamPublication . Oliveira, Rafael; Canário-Lemos, Rui; Morgans, Ryland; Rafael-Moreira, Tiago; Vilaça-Alves, José; Brito, JoãoBackground The aims of the study were to: (i) compare accumulated load and wellness between starters and non starters of a European professional soccer team; (ii) analyze the relationships between wellness and load measures and; (iii) compare training/match ratio (TMr) of external and internal load between starters and non-starters. Methods Ten players were considered starters while seven were classifed as non-starters over a 16-week period in which six training sessions and match day (MD) were considered in each weekly micro-cycle. The following meas‑ ures were used: wellness (fatigue, quality of sleep, muscle soreness, stress, and mood); load (rated of perceived exertion (RPE), session-RPE (s-RPE), high-speed running (HSR), sprinting, accelerations (ACC) and decelerations (DEC)). Accumulated wellness/load were calculated by summing all training and match sessions, while TMr was calculated by dividing accumulated training load by match data for all load measures and each player. Mann–Whitney U test was used for wellness variables, while independent T-test was used for the remaining variables to compare groups. Moreover, relationships among variables were explored using the Spearman’s Rho correlation coefcient. Results The main results showed that non-starters presented higher signifcant values for fatigue (p<0.019; g=0.24) and lower signifcant values for duration (p<0.006; ES=1.81) and s-RPE (p<0.001; ES=2.69) when compared to start‑ ers. Moreover, positive and very large correlation was found between quality of sleep and RPE, while negative and very large correlation were found between stress and deceleration, and mood and deceleration (all, p<0.05). Finally, non-starters presented higher values in all TMr than starters, namely, RPE (p=0.001; g=1.96), s-RPE (p=0.002; g=1.77), HSR (p=0.001; g=2.02), sprinting (p=0.002; g=4.23), accelerations (p=0.001; g=2.72), decelerations (p<0.001; g=3.44), and duration (p=0.003; g=2.27). Conclusions In conclusion, this study showed that non-starters produced higher TMr in all examined variables despite the lower match and training durations when compared with starters, suggesting that physical load was adjusted appropriately. Additionally, higher RPE was associated with improved sleep while higher number of decelerations were associated with decreased wellness, namely, stress and mood for non-starters.
- In-season microcycle quantification of professional women soccer players—external, internal and wellness measuresPublication . Fernandes, Renato; Ceylan, Halil İbrahim; Clemente, Filipe Manuel; Brito, João; Martins, Alexandre Duarte; Nobari, Hadi; Reis, Victor Machado; Oliveira, RafaelAlthough data currently exists pertaining to the intensity in the women’s football match, the knowledge about training is still scarce. Therefore, the aim of this study was to quantify external (locomotor activity) and internal (psychophysiological) intensities, as well as the wellness profile of the typical microcycle from professional female soccer players during the 2019/20 in-season. Ten players (24.6 ± 2.3 years) from an elite Portuguese women soccer team participated in this study. All variables were collected in 87 training session and 15 matches for analysis from the 2019–2020 in-season. Global positioning variables such total distance, high-speed running, acceleration, deceleration and player load were recorded as intensity while Rated Perceived Exertion (RPE) and session-RPE were recorded as internal measures. The Hooper Index (HI) was collected as a wellness parameter. The results showed that internal and external intensity measures were greater in matches compared to trainings during the week (match day minus [MD-], MD-5, MD-4, MD-2), p < 0.05 with very large effect size (ES). In the same line, higher internal and external intensity values were found in the beginning of the week while the lowest values were found in MD-2 (p < 0.05, with very large ES). Regarding wellness, there was no significant differences in the HI parameters between the training days and match days (p > 0.05). This study confirmed the highest intensity values during MD and the lowest on the training session before the MD (MD-2). Moreover, higher training intensities were found in the beginning of the training week sessions which were then reduced when the MD came close. Wellness parameters showed no variation when compared to intensity measures. This study confirmed the hypothesis regarding internal and external intensity but not regarding wellness.
- The physical demands in elite women's soccer training in PortugalPublication . Fernandes, Renato; Oliveira, Rafael; Brito, JoãoCurrently, elite women’s soccer players are exposed to greater training volume and competition demands than ever before. Consequently, these increased physical requirements may have implications for both physical performance levels and injury patterns. This study, which is a small part of a bigger project, aims to study the physical demands on the elite women soccer training using the External Load.
- Quantification of Pre-Season and In-Season Training Intensity across an Entire Competitive Season of Asian Professional Soccer PlayersPublication . Nobari, Hadi; Ramachandran, Akhilesh Kumar; Brito, João; Oliveira, RafaelThe aim of this study was to quantify the training load in two microcycles (Ms) from pre- and another two from in-season and to analyze playing position influences on the load experienced by professional soccer players. Nineteen Asian athletes, including four central defenders, four wide defenders, six central midfielders, three wide midfielders, and two strikers participated in this study. The micro-electromechanical system was used to collect training duration, total distance, and data from Zone 1 (0–3.9 km·h−1), Zone 2 (4–7.1 km·h−1), Zone 3 (7.2–14.3 km·h−1), Zone 4 (14.4–19.7 km·h−1), and Zone 5 (>19.8 km·h−1), heart rate maximum (HRmax), and average (HRavg). The load was reduced on the last day of the Ms, with the exception of Zone 5, in M1, where higher values were found on the last day. Significant differences were observed between central and wide defenders for distance covered in Zone 4 (effect-size: ES = −4.83) in M2 and M4 (ES = 4.96). Throughout all the Ms, a constant HRmax (165–188 bpm) and HRavg (119–145 bpm) were observed. There was a tendency to decrease the load on the last day of the Ms. In general, there were higher external training loads in Ms from the pre-season than in-season. Wide defenders and wide midfielders showed higher distances covered with high-intensity running.
- Quantificação da carga interna no período preparatório e competitivo em semanas com um jogo numa equipa de futebol masculina sub-17Publication . Oliveira, Rafael; Brito, João; Martins, AlexandreO objetivo do estudo foi comparar a carga interna (CI) dos períodos preparatório e competitivo de jogadores sub-17 da mesma equipa. A perceção subjetiva de esforço foi recolhida em 19 jogadores e multiplicada pela duração da sessão (s-RPE). O estudo analisou um total de 2 jogos e 8 sessões de treino através da aplicação da ANOVA com medidas repetidas. Os principais resultados revelaram valores mais altos na pré-epoca na duração do treino (103,3 vs 90,0 min, p<0,001) no MD-5 e (103,7 vs 96,7 min, p>0,05) no MD-3 do que na época competitiva, respetivamente. A duração da sessão revelou ser mais baixa na pré-época no MD-4 (103,2 vs 112,0 min, p=0,013) e no MD-2 (84,0 vs 97,2 min, p<0.001) do que na época competitiva, respetivamente. A s-RPE apresentou valores mais elevados na pré-epoca comparativamente à época competitiva no MD-5 (725,5 vs 481,3 u.a., p<0,000) e no MD-3 (755,8 vs 655,2 u.a., p=0,031), mas inferiores no MD-4 (705,2 vs 821,3 u.a., p=0,002) e no MD-2 (476,0 vs 559,0 u.a., p=0,020), respetivamente. Este estudo apresenta relevante informação adicional sobre a carga interna para os períodos preparatório e competitivo que pode ser usada para ajustar a periodização em jogadores de futebol sub-17.