PE026 Wong Chi Ling

Room D Day 2 0930 - SS#3

Supervisor: Dr. Chow Chi Ching, Gary

Title: Reactive and pre-planned agility of elite, sub-elite and amateur male touch football players in Hong Kong: A cross-sectional study

Abstract:

Background: Touch football is a kind of rugby varieties which stresses on agility of players, as it involves movements to change directions. Previous research has shown that agility of players could differentiate playing levels in most intermittent sports, but yet to be investigated in touch football. Purpose: The purpose of the study was to determine the reactive agility and 20-m sprint ability among elite, amateur male touch football players and the control group. Methods: Twenty male elite touch football players (mean ± SD: age 23.4 ± 2.6 years; body fat 18.02 ± SD: 3.02%), 20 male amateur touch football players (mean ± SD: age 25.56 ± 2.6 years; body fat 17.89 ± SD: 4.36%), and 20 male athletes majoring in other sports (Control) (mean ± SD: age 24.25 ± 1.37 years; body fat 14.52 ± SD: 4.44%) as control group were recruited in this study. Agility was evaluated by using reactive agility test (RAT and a 20-m sprint test was carried out as well. Analysis: Outcome variables had been compared among the three groups by multiple one-way ANOVAs. Result: Statistically significant differences among three groups were found. Faster RAT was observed in Elite touch football players (M = 23.96, SD =1.64) compared with the amateur touch football players (M = 26.92, SD = 1.48, P<.001P<.001). For there was significant difference in seconds for Elite touch football players (M = 2.69, SD = 0.015) also ran faster in the 20-m sprint test than the amateur touch football players (M = 2.82, SD = 0.13, P<.017) and the Control (M = 2.71, SD = 0.18, p<.017). Conclusion: Elite touch football players demonstrated superior reactive agility and 20-m sprint compared to amateur touch football players and athletes of other sports. It indicated the agility of players could differentiate playing levels in touch football.

SS005 CHEUNG, NGO YIN (Group)

CHEUNG, NGO YIN, LAW, LOK YIN JOYCE, WONG, WING YEE, YIP, PAK LUN, TANG, LIK HANG, TSANG, SUI CHEUNG

Room D Day 2 0930 - SS#3

Supervisor: Dr. Ha Chui Wai, Sophia

Title: The Correlation between Sleeping and Sports Performance among Rugby Players at Collegiate Level

Abstract:

Background

Sleeps affect athletes’ sports performance detrimentally. Nurturing good sleep depends on sleeping quality and sleeping quantity. Towards rugby players, who require skills of balance, coordination and reaction time. This study investigates the correlation of sleeping and sports performance among rugby players at collegiate level.

Methods

8 participants (4 males and 4 females) from rugby team of The Education University of Hong Kong (EDUHK) were recruited. Participants underwent two sleeping duration stages for 7 consecutive days: 1) less than 7 hours of sleep, and 2) more than 7 hours of sleep respectively. Participants needed to wear an ActiGraph watch to monitor the sleeping data. Thereby, completing the fitness tests after each sleeping stage. The fitness tests consist of 1) balance test with a BOSU ball, 2) coordination test with an agility ladder and 3) reaction time test with BlazePod,. Data analysis was conducted with ActiGraph for sleeping pattern measurement (sleeping onset latency, amount of sleep and sleeping efficiency). Paired t-test was used to compare the results of the 3 fitness tests of participants after the two sleeping stages.

Results

Paired t-test was used to compare the balance, coordination and reaction time between week1 (not enough sleep) and week 2 (enough sleep) among rugby players. There were significant differences in balance (left leg) (t7=-2.890, p=0.023), balance (right leg) (t7=-3.094, p=0.017), coordination (t7=4.173, p=0.004) and reaction time (t7=3.309, p=0.013).

Conclusion

To conclude, this study indicates that both the sleeping quantity and quality are equally important in contributing sports performance.

Key words: Sleeping Quantity, Sleeping Quality, Sports Performance, Rugby, College, University

SS006 HUNG, HIU CHING (Group)

HUNG, HIU CHING, LEUNG, CHUI LAM, LEUNG, HO YIN ANSON, SO, TSZ YING, CHIU, HO TING

Room D Day 2 0930 - SS#3

Supervisor: Dr. Chow Chi Ching, Gary

Title: The immediate effect of dynamic and static stretching on dynamic balance performance in athletes

Abstract:

Purposes: This proposal is to

investigate the immediate effect of dynamic and static stretching on dynamic

balance performance in athletes.

Methodology: This study is a stratified randomized controlled trial. There are 20 participants, 9 males and 11 females. 20 participants divided into: Static Stretching Group (SSG), Dynamic Stretching Group (DSG), and Control Group (CG), according to their type of sport, sport level, as well as gender randomly. Each participant attended 2 different sessions in 2 days. SSG and DSG will have different lower limb exercises to warm up then start the test and CG will test without any stretching. The study will use two tests to measure subjects’ dynamic balance performance (i.e. Dynamic Leap and Balance Test (DLBT) and Landing Error Scoring System (LESS)) before and after intervention. All data collected from the test will be analysed by IBM® SPSS® Statistics 26. One-way repeated measures ANOVA was used to analyze the difference between the averages of the two tests.

Result: An overall significant difference was found between dynamic stretching, static stretching and control groups in the acute effect of stability on postural control. Significance was set a priori at p ≤0.05. The significant differences (p < 0.05) were detected between three conditions (control, static, and dynamic).

Conclusion: In conclusion, the acute effects of stability of postural control can improve by using dynamic stretching but further research is needed.

Keywords: Static stretch; Dynamic stretch; Dynamic postural control; Landing stability; Motor strategy; Single balance control.

SS013 CHAN, CHI HONG (Group)

CHAN, CHI HONG, CHEUNG, SIU CHUNG, LEE, KA WAI, AU, CHEUK LUN, LUI, KA HING

Room D Day 2 0930 - SS#3

Supervisor: Mr. Kam Wai Keung, Kevin

Title: To investigate and compare the acute effect of static stretching and dynamic stretching in speed, power and agility performance in university soccer team members

Abstract:

Purposes: This study investigated and compared the effects of static stretching and dynamic stretching in speed, power and agility. Many studies have shown that acute static stretching can have a negative impact on sprint performance and subsequent explosiveness. Therefore, dynamic stretching has been proposed to replace other forms of stretching, especially traditional static stretching during warm-up. In our research, we would like to find out the difference between static stretching and dynamic stretching in speed, power and agility.

Methodology: Thirteen university soccer team members took part in a 3-weeks stretching study with their regular soccer training. All participants were required to do the three warm-up methods, which are jogging + non-stretching (No Stretching), jogging + static stretching (Static stretching) and jogging + dynamic stretching (Dynamic stretching). Participants were invited to take part in three tests (30m sprinting test, vertical jump test and T-Test(agility)) after each warm-up method for testing their performance in speed, power and agility.

Results: Significant difference in speed, power and agility among the static stretching and dynamic stretching was found. A better result of speed, power and agility was found in dynamic stretching while comparing with static stretching.

Conclusion: In conclusion, dynamic stretching was found to be a more effective way for speed, power, and agility but further research is needed.

Keywords: static stretching, dynamic stretching, agility, power, speed