Flávia Angélica Martins Almeida

Comparação de indicadores físicos e fisiológicos entre atletas profissionais de futsal e futebol

Many professional sports training periodize soccer and futsal similarly. However, little is known about physical and physiological responses of futsal players. This study compared anthropometric, aerobic capacity and power production among professional indoor and outdoor soccer players. Eleven futsal players (age 24.1±2.4 years) and 21 soccer players (age 22.6±3.6 years) males underwent two experimental sessions: (i) anthropometric measurements, maximal effort test treadmill and (II) test speed of 30 meters (repeated sprint ability, CSA). It was applied t-test for independent samples to verify possible differences between the modalities (p>0,05). The futsal players showed higher values of HRVT (177,2±10 e 67,1±10,8 bpm) VO2max ;VO2VT; %VO2max (62,5±4,3 e 52,1±4,6; 58,7±5,6 e 43,1±4,6; 76±8,4 e 93,9±5,3 ml·kg-1·min-1) compared with soccer players, respectively. These results demonstrate the need for specific methods of training for outdoor and indoor soccer.

Respostas fisiológicas e perceptuais obtidas durante a caminhada em ritmo autosselecionado por mulheres com diferentes índices de massa corporal

Physiological and perceived responses verified during gait have been widely studied; however, few investigations have tried to compare these responses in groups of different body mass indices during gait in self-selected rhythm. The aim of the present study was to compare the physiological and perceived responses among normative (N), overweighed (OW) and obese (OB) women during gait in self-selected rhythm. Sixty-six sedentary women, aged between 20 and 45 years and divided in three groups according to their body mass indices participated in the study: (i) N (18.5 - 24.9kg·m-2, n = 22); (ii) OW (25.0 - 29.9kg·m-2, n = 22) and (iii) OB (> 30.0kg·m-2, n = 22). Each participant performed a familiarization session and two experimental sessions (maximal incremental test and 20m-walking test in self-selected rhythm) to determine the physiological (heart rate - HR and oxygen consumption - O2) and perceived responses (perceived exertion - PE) of each session. One-way ANOVA was applied to compare the physiological and perceived responses obtained during gait in self-selected rhythm among the three experimental protocols, applying the Tukeys post hoc test with p < 0.05. Although the obese subjects have registered lower walking velocity (1.30 ± 0.13m·s-1) compared with the normative and overweighed ones (1.69 ± 0.11 and 1.58 ± 0.22m·s-1, respectively) (p < 0.05), they presented similar physiological response ((58.7 ± 8.6; 63.1 ± 12.6; 64.8 ± 11.1 %O2 and 75.1 ± 7.8; 78.8 ± 8.5; 78.7 ± 7.2 %HRmax, for the normative, overweighed and obese groups, respectively). Moreover, the perceived responses did not differ between experimental groups (11.6 ± 1.6; 11.7 ± 1.6; 12.2 ± 1.8, respectively). Therefore, it can be concluded that regardless of the BMI, adult women present similar physiological and perceived responses during gait in self-selected rhythm even when walking in different velocities.

Effects of musical tempo on physiological, affective, and perceptual variables and performance of self-selected walking pace.

[Purpose] This study investigated the effects of musical tempo on physiological, affective, and perceptual responses as well as the performance of self-selected walking pace. [Subjects] The study included 28 adult women between 29 and 51 years old. [Methods] The subjects were divided into three groups: no musical stimulation group (control), and 90 and 140 beats per minute musical tempo groups. Each subject underwent three experimental sessions: involved familiarization with the equipment, an incremental test to exhaustion, and a 30-min walk on a treadmill at a self-selected pace, respectively. During the self-selected walking session, physiological, perceptual, and affective variables were evaluated, and walking performance was evaluated at the end. [Results] There were no significant differences in physiological variables or affective response among groups. However, there were significant differences in perceptual response and walking performance among groups. [Conclusion] Fast music (140 beats per minute) promotes a higher rating of perceived exertion and greater performance in self-selected walking pace without significantly altering physiological variables or affective response.