Acute psychological, perceptual, recovery, and heart- rate responses to numerical equality and offensive numerical superiority in professional futsal small-sided games
This study found that adding a floater to create numerical superiority in professional futsal small-sided games did not significantly alter acute psychological, perceptual, or recovery responses compared to standard 2 vs. 2 formats, though both conditions resulted in a modest reduction in state anxiety.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Sports are often celebrated for what they do to the body, but they also do something profound to the mind. For decades, scientists have known that moving the body can lift the mood and lower the feeling of worry. This is especially true in team sports, where the shared goal and the constant interaction with others create a unique social environment. Yet, while researchers have spent years measuring how fast a player runs or how hard their heart beats during practice, they have asked fewer questions about how the specific shape of a drill changes a player's feelings in the moment. Does the way a game is structured—how many people are on the court, how much space they have, and whether they have a numerical advantage—alter the immediate psychological experience? Understanding this matters because coaches design training sessions to build skills and fitness, but if a specific drill also makes players feel more anxious or less engaged, that emotional cost could influence how well they learn or how much they enjoy the sport.
In a study involving professional futsal players, researchers set out to test whether changing the number of players in a small-sided game would shift these immediate feelings. Futsal is a fast-paced indoor sport played on a hard court, known for its rapid transitions and high intensity. The team compared two specific formats: a standard game where two players faced two opponents, and a variation where two players faced two opponents plus a "floater." A floater is an extra player who always plays on the side of the team that has the ball, creating a temporary numerical advantage. The researchers wanted to see if this extra support would make the game feel easier or more enjoyable, or if the pressure of the extra player would change the players' anxiety levels, mood, or sense of recovery. They also tracked the players' heart rates to see if the physical effort matched any changes in how the players felt.
Sixteen professional male players from a top team in Brazil took part in the study. Over two separate days, spaced 48 hours apart, they played both versions of the game. Each session consisted of three short bursts of play, lasting four minutes each, with three minutes of rest in between. Before and after the games, the players filled out questionnaires about their state of mind. They reported on their current anxiety, their mood across several categories like tension and energy, how much they enjoyed the activity, and how well they felt they had recovered. During the games, heart rate monitors tracked their physical exertion. The researchers then compared the data from the two formats to see if the presence of the floater made a measurable difference.
The results showed that adding the extra player did not change the players' psychological experience in the way one might expect. Whether the players were in the standard two-against-two format or the version with the floater, their reported levels of anxiety, mood, enjoyment, and perceived recovery remained statistically the same. The extra player did not make the game feel more fun, nor did it make it feel less stressful. The only consistent psychological change the researchers found was a small but reliable drop in state anxiety from before the session to after it. This reduction happened regardless of which game format the players were doing, suggesting that the act of playing these intense, representative games was enough to lower worry, but the specific numerical setup of the drill did not add to or subtract from that effect.
Physically, the story was slightly more nuanced. The players' heart rates did show a difference depending on the format, but this difference did not translate into a change in how the players felt. In the first round of the standard two-against-two game, the players' heart rates were lower than in the first round of the game with the floater. However, this variation in physical effort did not lead to a corresponding shift in anxiety, mood, or enjoyment. The players did not report feeling more tired or more stressed during the higher-intensity rounds, nor did they feel more relaxed during the lower-intensity ones. This suggests that for these highly trained athletes, modest changes in physical load do not automatically alter their immediate emotional state.
The study concludes that for professional futsal players, the choice between a two-against-two game and a version with a floater can be made based on tactical or physical goals without worrying about a negative impact on the players' acute psychological state. Both formats were experienced as positive and enjoyable, and both led to a modest reduction in anxiety. The researchers noted that because the study involved only one team and the order of the games was not randomized, the findings are specific to this group and this sequence. However, the data clearly indicates that the structural change of adding a floater did not disrupt the players' emotional balance. For coaches, this means they can focus on the tactical benefits of each format, knowing that neither version is likely to make the players feel worse or less engaged in the moment.
Drowning in papers in your field?
Get daily digests of the most novel papers matching your research keywords — with technical summaries, in your language.