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- Within- and between-mesocycle variations of well-being measures in top elite male soccer players: a longitudinal studyPublication . Oliveira, Rafael; Ceylan, Halil İbrahim; Brito, João; Martins, Alexandre; Nalha, Matilde; Mendes, Bruno; Clemente, Filipe ManuelBackground: The aims of this study were to describe the variations of training monotony (TM), training strain (TS), and acute:chronic workload ratio (ACWR) through Hooper Index categories (fatigue, stress, DOMS, and sleep quality) and to compare those variations between player status and player positions. Methods: Seventeen male professional soccer players participated in this study. Considering player status, participants were divided in nine starters and eight non-starters. Additionally, participants were divided by playing positions: three wide defenders, four central defenders, three wide midfielders, four central midfielders, and three strikers. They were followed during 40-week in-season period. TM, TS, and ACWR were calculated for each HI category, respectively. Data were grouped in 10 mesocycles for further analysis. Results: Results showed variations across the mesocycles. In general, starters showed higher values for TM, TS, and ACWR calculations than non-starters, although there were some exceptions. Regarding player positions, significant differences were found in stress between wide defenders vs central midfielders for TM (p = 0.033, ES = 5.16), central defenders vs wide defenders for ACWR (p = 0.044, ES = 4.95), and in sleep between wide defenders and strikers for TM (p = 0.015, ES = 5.80). Conclusions: This study revealed that an analysis of players’ well-being parameters according to player status and positions can provide clear information to the coaches and their staff to complement the tasks of training monitoring.
- In-season body composition effects in professional women soccer playersPublication . Oliveira, Rafael; Francisco, Ruben; Fernandes, R.; Martins, Alexandre; Nobari, Hadi; Clemente, Filipe Manuel; Brito, JoãoThis study aimed to analyze anthropometric and body composition effects in professional soccer women players across the early and mid-competitive 2019/20 season. Seventeen players (age, height, body mass, and body mass index of 22.7 ± 6.3 years, 167.5 ± 5.6 cm, 60.7 ± 6.6 kg and 21.6 ± 0.2 kg/m2) from a Portuguese BPI League team participated in this study. The participants completed ≥80% of 57 training sessions and 13 matches. They were assessed at three points (before the start of the season (A1), after two months (A2), and after four months (A3)) using the following variables: body fat mass (BFM), soft lean mass (SLM), fat-free mass (FFM), intracellular water (ICW), extracellular water (ECW), total body water (TBW), and phase angle (PhA, 50 Khz), through InBody S10. Nutritional intake was determined through a questionnaire. Repeated measures ANCOVA and effect sizes (ES) were used with p < 0.05. The main results occurred between A1 and A2 for BFM (−21.7%, ES = 1.58), SLM (3.7%, ES = 1.24), FFM (4%, ES = 1.34), ICW (4.2%, ES = 1.41), TBW (3.7%, ES = 1.04). Furthermore, there were significant results between A1 and A3 for FFM (4.8%, ES = 1.51), ICW (5%, ES = 1.68), and PhA (10.4%, ES = 6.64). The results showed that the water parameters improved over time, which led to healthy hydration statuses. The training load structure provided sufficient stimulus for appropriate physical fitness development, without causing negative disturbances in the water compartments.
- Comparisons of accelerometer variables training monotony and strain of starters and non-starters: a full-season study in professional soccer playersPublication . Nobari, Hadi; Oliveira, Rafael; Clemente, Filipe Manuel; Adsuar, Jose Carmelo; Pérez-Gómez, Jorge; Carlos-Vivas, Jorge; Brito, JoãoThe purpose of this study was two-fold: (1) to describe weekly average values for training monotony (TM) and training strain (TS) and their variations across the full soccer season, based on the number of accelerations and decelerations; (2) to analyze the di erences between starter and non-starter players on weekly average TM and TS values for the pre-season and three in-season periods. In total, 21 professional soccer players were evaluated over 48 weeks during the full-season. The TM and TS were calculated based on the number of accelerations and decelerations at zone 1, zone 2 and zone 3, respectively. The results revealed that starters presented higher values compared to non-starters throughout the full season for all variables analyzed (all, p < 0.05). Generally, there were higher values in the pre-season. Specifically, accelerations at zones 1, 2 and 3 revealed moderate to very large significance of the starters compared to non-starters over the full-season. Decelerations at zone 1, 2 and 3 presented moderate to nearly optimally significant greater weekly averages for starters compared to non-starters during the full season. In conclusion, the TM and TS values were higher for starters compared to non-starters through the full-season, which confirms that the training session does not provide a su cient load to non-starter soccer players during the full-season.
- In-season internal load and wellness variations in professional women soccer players: comparisons between playing positions and statusPublication . Fernandes, R.; Brito, João; Vieira, Luiz H. Palucci; Martins, Alexandre; Clemente, Filipe Manuel; Nobari, Hadi; Reis, Victor Machado; Oliveira, RafaelThe internal intensity monitoring in soccer has been used more in recent years in men’s football; however, in women’s soccer, the existing literature is still scarce. The aims of this study were threefold: (a) to describe the weekly variations of training monotony, training strain and acute: chronic workload ratio through session Rated Perceived Exertion (s-RPE); (b) to describe weekly variations of Hooper Index [stress, fatigue, Delayed Onset Muscle Soreness (DOMS) and sleep]; and (c) to compare those variations between playing positions and player status. Nineteen players (24.1 ± 2.7 years) from a Portuguese BPI League professional team participated in this study. All variables were collected in a 10-week in-season period with three training sessions and one match per week during the 2019/20 season. Considering the overall team, the results showed that there were some associations between Hooper Index categories and s-RPE like stress or fatigue (0.693, p < 0.01), stress or DOMS (0.593, p < 0.01), stress or s-RPE (−0.516, p < 0.05) and fatigue or DOMS (0.688, p < 0.01). There were no differences between all parameters in playing positions or player status. In conclusion, the study revealed that higher levels of fatigue and DOMS occur concurrently with better nights of sleep. Moreover, any in-season variations concerning internal load and perceived wellness seems independent of position or status in outfield players. The data also showed that the higher the players’ reported stress, the lower the observed s-RPE, thus possibly indicating a mutual interference of experienced stress levels on the assimilation of training intensity by elite women soccer players.
- 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.
- Comparisons between bioelectrical impedance variables, functional tests and blood markers based on BMI in older women and their association with phase anglePublication . Oliveira, Rafael; Leão, César; Silva, Ana Filipa; Clemente, Filipe Manuel; Santamarinha, Carlos Tadeu; Nobari, Hadi; Brito, JoãoThe aim of the present study was to compare electrical bioimpedance variables, blood markers and functional tests based on Body Mass Index (BMI) in older women. Associations between Phase Angle (PhA) with functional tests and blood markers were also analyzed. A total of 46 independent elderly people participated in the study, and they were divided into four groups according to BMI values: Group 1 (G1, BMI < 25 kg/m2); Group 2 (G2, BMI > 25–30 kg/m2); Group 3 (G3, BMI > 30–35 kg/m2); Group 4 (G4, BMI > 35 kg/m2). In addition to the weight and height used to calculate the BMI, the following body composition variables were collected: fat mass (FM), fat-free mass, intracellular water (ICW), extracellular water (ECW), total body water (TBW) and PhA (50 kHz) through InBody S10 equipment. Functional capacity was assessed using the Fullerton battery of tests: arm-curl; chair-stand; 6 min walking test (6MWT); time up-and-go test (TUG); standing on one leg (SOOL) and take 10 foot-lines (10FL). The main results showed differences between groups in the tests: 6MWT, SOOL and 10FL between G1 vs. G3 and G2 vs. G3 (p < 0.05); ACT, AIC and AEC between G1 vs. G4 (p < 0.05); FM among all groups (p < 0.05). Negative correlations were found between PhA and the agility test in G1 (r = −0.848; p = 0.008) and G4 (r = −0.909; p = 0.005); PhA and chair-stand in G3 (r = 0.527; p = 0.044); PhA and forearm flexion in G3 (r = 0.641; p = 0.010) and G4 (r = 0.943; p = 0.001); PhA and 6MWT in G4 (r = 0.771; p = 0.042). This study found that there is a clear trend towards better functional capacities with better parameters of body composition. Although there were no differences between groups in PhA, associations were found between different functional tests with PhA, which reveals the importance of this variable as a marker of health status.
- Comparison of running distance variables and body load in competitions based on their results: a full‐season study of professional soccer playersPublication . Nobari, Hadi; Oliveira, Rafael; Brito, João Paulo; Pérez‐Gómez, José; Clemente, Filipe ManuelAbstract: The aims of this study were to compare the external workload in win, draw and defeat matches and to compare first and second halves in the Iranian Premier League. Observations on individual match performance measures were undertaken on thirteen outfield players (age, 28.6 ± 2.7 years; height, 182.1 ± 8.6 cm; body mass, 75.3 ± 8.2 kg; BMI, 22.6 ± 0.7 kg/m2) competing in the Iranian Premier League. High‐speed activities selected for analysis included total duration of matches, total distance, average speed, high‐speed running distance, sprint distance, maximal speed and GPS‐derived body load data. In general, there were higher workloads in win matches when compared with draw or defeat for all variables; higher workloads in the first halves of win and draw matches; higher total distance, high‐speed running distance and body load in the second half in defeat matches. Specifically, lower average speed was found in matches with a win than with draw or defeat (p < 0.05). Sprint distance was higher in the first half of win than defeat matches and high‐speed running distance was lower in draw than defeat matches (all, p < 0.05). In addition, first half presented higher values for all variables, regardless of the match result. Specifically, high‐speed running distance was higher in the first half of matches with a win (p = 0.08) and total distance was higher in the first half of matches with a draw (p = 0.012). In conclusion, match result influences the external workload demands and must be considered in subsequent training sessions and matches.
- Comparações entre variáveis de bioimpedância e testes funcionais baseados no índice de massa corporal em idosasPublication . Santamarinha, Carlos Tadeu; Oliveira, Rafael; Leão, César; Silva, Ana Filipa; Clemente, Filipe Manuel; Brito, João
- Within- and between-mesocycle variations of well-being measures in top elite soccer players: a longitudinal studyPublication . Oliveira, Rafael; Ceylan, Halil; Martins, Alexandre; Brito, João; Nalha, Matilde; Mendes, Bruno; Clemente, Filipe ManuelThe aim of this study was two-fold: (a) to describe the in-season variations of training monotony (TM), training strain (TS), and acute: chronic workload ratio (ACWR) through fatigue, stress, muscle soreness and sleep quality; (b) to compare those variations between player status and player positions. Seventeen professional players from an European First League team participated in this study. Regarding player status, participants were divided in two groups: starters (n=9), and non-starters (n=8). Additionally, they were divided according to player positions: four central defenders, three wide defenders, four central midfielders, three wide midfielders, and three strikers. They were monitored daily over a 40-week period of competition through the Hooper index. Then, TM, TS, and ACWR were calculated for each Hooper index categories, respectively. Data were analysed across ten mesocycles (M: 1 to 10). Results revealed variations over the season with respect for both player status and positions. There was a tendency of higher values for all TM, TS, and ACWR calculated from Hooper categories, for starters compared to non-starters. Regarding player positions, there were variations over the season but only significant differences in stress between wide defenders vs central midfielders for monotony (p=0.033, ES=5.16) and central defenders vs wide defenders for ACWR (p=0.044, ES=4.95), and in sleep between wide defenders and strikers for TM (p=0.015, ES= 5.80). The present study showed that a comprehensive analysis of players' wellness parameters can provide clear information to the coaches tp complement training monitoring of the players.
- In-season internal and external training monotony, strain and acute/chronic workload ratio variations between starters and non-starters of a top elite European soccer teamPublication . Oliveira, Rafael; Vieira, Luiz; Martins, Alexandre; Brito, João; Nalha, Matilde; Mendes, Bruno; Clemente, Filipe ManuelThe aim of this study was two-fold: (a) to describe the in-season variations of training monotony, training strain, and acute: chronic workload ratio (ACWR) through session rated perceived exertion (s-RPE), total distance and high-speed running (HSR); (b) to compare those variations between starters and non-starters. Seventeen professional players from an European First League team participated in this study. They were divided in two groups: starters (n=9) and non-starters (n=8). The players were monitored daily over a 41-week period of competition where 52 matches occurred during the 2015- 2016 in-season. Through the collection of s-RPE, total distance and HSR, training monotony, training strain and ACWR were calculated for each measure, respectively. Data were analysed across ten mesocycles (M: 1 to 10). Results revealed no differences between starters vs non-starters (p>0.05). M6 had a greater number of matches and displayed higher values in monotony (s-RPE, total distance and HSR), strain (only for total distance) and ACWR (s-RPE, TD and HSR). However, the variation patterns for all indexes displayed some differences. In conclusion, the values of both starters and non starters showed small differences between them and thus suggesting that the adjustments of training workloads that had been applied over the season helped to reduce differences according to the player status. Even so, there some variations over the season (microcycles and mesocycles) for the whole team. This study could be used as reference for future coaches, staff and scientists.