Fatores motivacionais dos alunos e avaliação da qualidade de aulas online de ginástica artística / Children motivational factors and quality assessment of artistic gymnastics online training sessions / Factores motivacionales de los estudiantes y evaluación de la calidad de las clases online de gimnasia artística

RESUMO O objetivo deste estudo foi analisar fatores motivacionais para a participação em aulas online de ginástica artística (GA) e a satisfação dos alunos quanto à qualidade dessas aulas. Uma amostra de 39 alunos respondeu ao Inventário de Motivação para Prática Desportiva e a um questionário estruturado para avaliação da qualidade das aulas online. Um total de 67%, 53% e 30% dos alunos consideraram "muito importante" os motivos relacionados à "competência esportiva", "saúde" e "amizade/lazer", respectivamente. Todas as dimensões avaliadas no questionário sobre a qualidade das aulas apresentaram satisfação superior a 75%. Portanto, a "Competência esportiva" é o principal fator motivacional para a prática de aulas online de GA. De maneira geral, os alunos se mostraram satisfeitos com a qualidade dessas aulas.

ABSTRACT This study aimed to analyse the motivational factors for artistic gymnastics (AG) online training sessions and the children's perception regarding the quality of this training. A sample of 39 children answered the Motivation for Sports Practice Inventory and a structured questionnaire to assess the quality of online sessions. A total of 67%, 53%, and 30% of the children reported the reasons related to "sports competence", "health", and "friendship/leisure" are "very important", respectively. All dimensions evaluated in the structured questionnaire showed a percentage of satisfaction greater than 75%. Therefore, "Sports competence" is the main motivational factor for participation in AG online training sessions. Overall, children were satisfied with the quality of this online training.

RESUMEN El objetivo de este estudio fue analizar factores de motivación para la participación en las clases de gimnasia artística (GA) en línea y satisfacción de los alumnos con respecto a las mismas. Una muestra de 39 alumnos respondió al Inventario de Motivación para la Práctica Deportiva y a un cuestionario que evaluaba las clases. Un total de 67%, 53% y 30% de los estudiantes consideraron "muy importantes" las razones relacionadas con "competencia deportiva", "salud" y "amistad/ocio", respectivamente. La calidad de las clases mostró una satisfacción superior al 75%. Por lo tanto, la "competencia deportiva" es el principal factor de motivación para la práctica de las clases online de AG. La mayoría de los estudiantes están satisfechos con la calidad de las clases.

Estimated energy expenditure and training intensity in young female artistic gymnasts

Abstract Aim: This study determined the energy expenditure and effort intensity of athletes during women's artistic gymnastics training sessions. Methods: Ten gymnasts (age 10.9 ± 1.7 years) performed a test to estimate the maximum rate of oxygen uptake (VO2max), during which the maximum heart rate (HRmax) was also obtained. The heart rate (HR) of these gymnasts was recorded during five training sessions and then used to estimate the exercise intensity and energy expenditure. Results: Mean duration of training sessions was 4.08 ± 0.42 h, with mean HR corresponding to 137 ± 8 bpm or 69.0 ± 3.5% of HRmax. Gymnasts spent less training time at 90-100% HRmax compared to the other HR ranges (p < 0.05). Time spent at 60-70% and 70-80% was higher compared to 80-90% HRmax (p = 0.012 and p = 0.001, respectively). The training impulse was 239.2 ± 35.4 AU. Estimated energy expenditure was 768.3 ± 168.5 kcal, metabolic rate was 3.1 ± 0.6 kcal/min, and the metabolic equivalent of task (MET) corresponded to 6.1 ± 0.6. Conclusion: Young gymnasts performed prolonged and moderate-intensity training sessions that generated high energetic demands. This information is beneficial to gymnasts since the coaching team can use the data to control the training load and prescribe a proper diet.

The effect of post-match resistance training on recovery in female footballers; when is best to train?

OBJECTIVE: This study examined the effects of resistance training (RT) performed at 24 or 48h post-match on recovery in female soccer players. METHODS: In a randomized cross-over design, 10 professional female soccer players undertook matches followed by three conditions: Control (no RT), RT-24h and RT-48h post-match. RT was a high-speed and low-load session, consisting of 3 sets of 6 repetitions of lower-body exercises at 50%1RM. During training, one exercise (half-squat) was performed on a force platform to determine mean and peak forces. Tests were undertaken pre, 24, 48 and 72h post-match including countermovement jump (CMJ), 20m sprint, C-reactive protein (CRP) and delayed onset muscle soreness (DOMS). Two-way repeated-measures ANOVA and Effect size (ES) analyses compared the time-course of recovery. RESULTS: Despite no significant differences between conditions, ES for changes from pre to 72h were larger for CMJ, 10 and 20m sprint time, and DOMS in RT48h (ES=0.38-2.13) than in RT24h (ES=0.08-0.66) and in Control (ES=0.09-0.36). No differences in forces of half-squat exercise existed between conditions (p>0.05; ES=0.05-0.06). CONCLUSION: The trend for suppressed recovery of speed, power and perceptual responses at 72h post-match suggests RT48h is less ideal in female soccer players, particularly during congested micro-cycles.

Time-course of changes in performance, biomechanical, physiological and perceptual responses following resistance training sessions.

This study determined the time-course of recovery after resistance training (RT) sessions and the association between changes in performance with changes in biomechanical, physiological and perceptual parameters. After a 4-week familiarization period, 14 resistance-trained males performed 3 experimental conditions, each one including 2 sessions with a recovery interval of 24, 48 h or 72 h, in a randomized order. RT sessions consisted of 5 sets of 8-10RM on squat and leg press exercises. The resistance was equal for the 2 sessions of each condition and repetitions were performed until concentric failure. Volume load (VL) and first set volume load (FSVL) were compared between sessions. Tests before each session included countermovement jump (CMJ), maximal voluntary isometric contraction (MVIC), creatine kinase (CK) and delayed onset muscle soreness (DOMS). (2 × 3) ANOVA with effect sizes (ES) assessed the time-course of recovery and Kendall test the correlation between variables (α = 0.05). Significant interaction was observed for all variables, except for CK, where a condition main effect occurred. Comparisons between post and pre-intervals showed VL (p = 0.011;ES = -0.90) decreased for 24 h condition, while FSVL remained decreased for 48 h (p = 0.031;ES = -0.63) and DOMS increased (p = 0.001;ES = 3.52). CMJ (p = 0.025;ES = 0.25) and MVIC (p = 0.031;ES = 0.14) performance increased at 72 h. FSVL (r = 0.424), CMJ (r = 0.439), MVIC (r = 0.389) and DOMS (r = -0.327) were significantly correlated with VL (p < 0.05). Time-course of VL showed the necessity of at least 48 h for the reestablishment of performance, though better perceptual responses were evident at 72h. Thus, both recovery intervals may be beneficial after lower-limbs RT until concentric failure, though chronic effects still need to be investigated.