An empirical study of the flag rugby game programme to promote gross motor skills and physical fitness in 5-6 year old preschool children.

In order to investigate the effects of a flag rugby game programs on the development of gross motor skills and physical fitness in 5-6 year old preschool children. An overall random sampling method was adopted to select 56 preschoolers aged 5-6 years from class A and class B,class A was the ExG (28) implemented a flag rugby games intervention program,and class B was the ConG (28) implemented a regular physical education program,with a 12-week intervention period.The content and requirements of the experimental intervention program were determined through a systematic analysis method, and the subjects' gross motor skills level was tested using the TGMD-3, and their physical fitness level was measured using China's fifth national physical fitness monitoring of early childhood (3-6 years) component.Experimental data were statistically analyzed using independent samples t-test, paired samples t-test, and repeated measures ANOVA test.After 12 weeks of practice, 1）We found that the ExG outperformed the ConG in Skip,One hand stationary dribble, Overhand throw, Underhand throw, Forehand strike of self-bounced,Kick a stationary ball, Total object control subject score, Total gross motor score test results with significant differences (p < 0.05).The ExG differed significantly (p < 0.01) in Grip strength, Stand long jump,Sit forward bend, Continuous jump on both feet,15 m obstacle run,Walk the balance beam, while the ConG differed significantly (p < 0.05) only in Continuous jump on both feet,15 m obstacle run and Stand long jump.2）We also found gender differences in gross motor skills and Physical fitness test results, this difference is manifested in boys outperformed girls in Total object control subject Score, Grip strength and 15 m obstacle run with significant difference (p < 0.05), girls outperformed boys in Sit forward bend with significant difference (p < 0.05).The 12-week flag rugby game programs improved gross motor skills and physical fitness levels of 5-6 year old preschoolers more comprehensively than the regular program, and we recommend the purposeful and organized promotion of a flag rugby game programs in the physical activity curriculum for 5-6 year old preschoolers.

The effect of rope jumping training on the dynamic balance ability and hitting stability among adolescent tennis players.

To discuss the effects of 12 weeks of jump rope training on dynamic balance and stroke stability in junior tennis players. Sixteen junior tennis players at CTN7 level were used as subjects and randomly divided equally into ExG and ConG for 12 weeks of training, 3 times a week. The ExG performed Jump Rope training and Special Preparation Activity (JR + SPA), the ConG performed only Special Preparation Activity (SPA) to ensure that the training intensity was basically the same. The Biodex Balance System (BBS) was applied to examine the participants' dynamic balance ability, including the Limits of Stability (LOS) and the Single Leg Stability Test (SLST), the International Tennis Number (ITN) tests ball striking stability. Experimental data were statistically analyzed using independent samples t test, paired samples t test, and repeated measures ANOVA test. We observed significant (P < 0.05) differences in limits of stability (LOS) before and after the test in subjects in the ExG and significant (P < 0.05) differences in ODC, BDC, RDC, FLDC, BLDC, and BRDC metrics in the ExG, and a 2 (group: ExG, ConG) × 2 (time: 0w, 12w) repeated measures ANOVA was performed and found significant (P < 0.05) differences in LDC, RDC, FLDC, BLDC, BRDC, and LOST (S) indexes interacted significantly (P < 0.01) in single-leg stability test (SLST) pre- and post-measures were found in subjects in ExG and in MLSI (L) in ExG (P < 0.05), and 2 (group: ExG, ConG) × 2 (time: 0w, 12w) repeated measures ANOVAs were performed and found that OSI (L), MLSI (L), OSI (R), MLSI (R) interaction on indicators was significant (P < 0.05). The difference in hitting stability between subjects in ExG was significant (P < 0.01) at the pre and post test, while the difference in ConG was significant (P < 0.01) at the pre and post test only on the hitting stability test (depth). 2 (Group: ExG, ConG) × 2 (Time: 0w, 12w) repeated measures ANOVA was performed and found a significant interaction between the two (P < 0.01). We suggest to incorporate Forward double-legged alternating jump rope, Reverse double-legged alternating jump rope, Double-legged alternating cross jump rope, Squatting alternating single-legged jump rope into the regular tennis training course with special techniques, which will help the junior tennis players' dynamic balance ability and hitting stability, and can effectively improve the competitive level of junior tennis players.