Studying and selecting some supplementery exercises to improve technique of cushioning the ball with two hands for non major students of Tien Giang university

Volleyball is gradually becoming the sport that many students are interested in and choose to join in daily practice. However, in the process of learning and work out, most students make basic errors when performing technical tasks. This article aims to identify, select and build some supplementary exercises in order to correct the common errors of students in the process of implementing the cushion technique of low ball with both hands.

STUDYING AND SELECTING SOME SUPPLEMENTERY EXERCISES TO IMPROVE

TECHNIQUE OF CUSHIONING THE BALL WITH TWO HANDS FOR NON-MAJOR

STUDENTS OF TIEN GIANG UNIVERSITY

Huynh Phong Ba1, Vo Tran Thai1

1 Tien Giang University

Information:

Received: 20/10/2018

Accepted: 11/02/2019

Published: 11/2019

Keywords:

Sport; volleyball; student;

exercise

ABSTRACT

Volleyball is gradually becoming the sport that many students are interested

in and choose to join in daily practice However, in the process of learning and work out, most students make basic errors when performing technical tasks This article aims to identify, select and build some supplementary exercises in order to correct the common errors of students in the process of implementing the cushion technique of low ball with both hands

1 INTRODUCTION

Like other sports such as Football, Athletics,

Basketball, Badminton, or King Chess,

volleyball is the sport that most people like and

participate in training Participants in

Volleyball are very different from teenagers,

middle aged people or the elderly

Activities in volleyball is a combination of

basic movement techniques such as passing,

cushioning, smashing, kicking and blocking in

which the technique of low cushioning with two

hands is one of the basic and important

techniques in volleyball

Due to the practice of teaching elective sports

for non-major students at Tien Giang

University, we realize that most students still

make many mistakes while performing this

movement technique Therefore, we study the

topic: "Studying and selecting some

supplementary exercises to improve technique

of cushioning the ball with two hands for

non-major students of Tien Giang University"

2 SUBJECTS AND METHODS OF THE STUDY

2.1 Research subjects

The research subject is some additional exercises to improve the cushion technique with two hands for non-major students of Tien Giang University

2.2 Research object

The research object was 90 students of 02 elective sports classes Volleyball 2 was taught

in the first semester of the school year

2018-2019 at Tien Giang University, in details:

- Case-Control group: 45 students of class

1244104 (female students are 20)

- Experimental group: 45 students of class

1244108 (female students are 20)

2.3 Research Methods

To achieve the purpose of the research, we have used the following research methods: Methods

of analyzing and synthesizing documents;

Interview method; Pedagogical observation

method; Pedagogical experiment method and

statistical math method

DISCUSSION

3.1 Situation to identify the mistakes when

performing the technique of using

low-handed cushion with two basic hands of

Tien Giang University students

To assess the situation in order to identify some

mistakes when performing the basic technique

of low cushioning with two hands for students

of Tien Giang University, the subject conducted

a practical technical inspection of the whole

class, the specific test content includes a number of tests as follows:

1 Test of moving and catching the ball into the wall

2 Test of image of hand pick and catching ball

3 Test of serving the ball

4 Test of typing support

5 Test to block the ball

By the method of pedagogical observation, the thesis identifies the errors of students when performing the technique of using low cushion with two basic hands, after statistics, some common errors of students are presented in table 1

Table 1 Pedagogical observation results when using the cushioning technique (n=90)

Number of students making mistakes (n=90)

1

Error 1 Error when moving for the ball pickup 88 97.78

2 Error 2 Error in preparing position 75 83.33

3 Error 3 Two-handed error of misalignment 80 88.89

4 Error 4 Error of coordination between parts of the body 85 94.44

6 Error 6 The body position falls a lot forward or backward 24 26.67

7

Error 7 Hands relax, the two forearms do not form the plane,

especially when cushioning the ball on the left (right) affects

ball flight accuracy

15 16.67

8 Error 8 After cushioning the ball, the hands bend at the elbows 30 33.33

Through the above statistics table, after

observing students performing low-handed ball

technique, the topic found that many students

made 5 errors (errors 1, 2, 3, 4 and 5) with the

above rate of over 80% Based on that, the topic

interviews the lecturers who have much

Tien Giang University, the interview content is

to determine the necessity of the additional exercises support to overcome 5 common errors of students when performing low-cushion technique with two hands Interview results are presented in Table 2

Table 2 Interviews lecturers on the choice of supplemental exercises to overcome some common errors of

students when performing the ball cushion technique

OVERCOME ERRORS

DEGREE OF EVALUATION

(n=13) Level 1 Level 2 Level 3

1 Error 1 Exercise 1: Move 4 directions to catch the

ball (front, back, left, right)

0 0 0 0 13 100

2 Error 2, 3 Exercise 2: Cushioning the ball to the wall or

by tossing the ball 1 7.69 1 7.69 11 84.62

3 Error 4

Exercise 3: Self ball to cushion 0 0 1 7.69 12 92.31

4 Error 5

Exercise 4: Blocking the ball 0 0 1 7.69 12 92.31

* Level 1: Not required; Level 2: Necessary; Level 3: Very necessary

Through the interview results on choosing a

number of exercises to overcome the common

errors of students when performing the

technique of cushioning low ball with two

hands, the complementary exercises have been

developed and selected equally The majority of

the respondents choose with over 80% of the

respondents agree At the same time, the

comments said that in order to improve the

quality of two-hand cushioning technique for

two-hand under-balls by non-major students at

Tien Giang University, it is necessary to apply

all exercises simultaneously in teaching

practices at the school Based on that, the topic

has selected and built 04 supplementary

exercises to overcome some common errors of

students when performing low-cushion

technique with two basic hands, specific

content is presented in section 3.2 of the thesis

3.2 Selecting some additional exercises to

improve the technique of low-ball

cushion with two hands for students of

Tien Giang University

3.2.1 Supplementary exercises to fix error 1 of students

Exercise 1: Move 4 directions to catch the ball

Purpose: To help students actively identify the dropping point of the ball

Requirements: Students actively identify the

dropping point of the ball

Method: Divide the class into 02 groups, stand

on 02 sides of the net, each student moves 4 directions to catch the ball, 01 server throws the ball in 04 directions forcing students to observe and proactively move for catching the ball

3.2.2 Supplementary exercises to overcome error 2 and 3 of the students

Exercise 2: Cushioning the ball to the wall or

by tossing the ball

Purpose: To help students consolidate and

perfect the ball cushion technique

How to do it: Divide the class into small

groups of 3-5 students, standing opposite the wall (or 02 students standing opposite each

other) with about 2 m, taking it continuously for

02 minutes

3.2.3 Supplementary exercises to overcome

error 4 of students

Exercise 3: Self ball to cushion

Purpose: To help students a sense of space

with the ball

Requirements: Perform continuously, toss the

ball at a moderate height, follow the learned

technique

Implementation time: Performing in 02

minutes, repeating 3-5 times

3.2.4 Supplementary exercises to overcome

error 5 of students

Exercise 4: Blocking the ball

Purpose: to increase the difficulty for the

cushion, to enhance the feeling of contact and

improve the technique at a higher level

How to do: Divide the class into small groups

standing opposite each other, with about 2m, one performs the knocking motion, another performs the technique of knocking the ball, perform continuously for 02 minutes, repeat from 3 -5 times

supplementary exercises to overcome some errors when performing low-handed cushion technique with two hands of Tien Giang University students

3.3.1 Assessing the results of the two-hand buffer technique test by two hands of the control and experimental groups

To be able to objectively assess the initial level

of the target groups of researchers before going into the experiment, the subject conducted a cushion of low ball with two hands for all students of the two groups the results are presented in Tables 3 and 4

Table 3 Chi-Squared Test results of 2 groups of female students before the experiment

Value df Asymp Sig (2-sided)

Linear-by-Linear Association 0.000 1 1.000

a 2 cells (33.3%) have expected count less than 5 The minimum expected count is 1.50

Table 4 Chi –Squared Test results of 2 male groups of students before experiments

Value df Asymp Sig (2-sided)

Linear-by-Linear Association 0.000 1 1.000

a 2 cells (33.3%) have expected count less than 5 The minimum expected count is 1.50

Through the results of Chi square test of 02

groups of male and female students before

experiment, respectively 0.525 and 0.582 <Chi

squared table is 5.99 with degrees of freedom df

= 2 [1] Thus, Chi squared calculation <Chi

square table so the pre-experimental level of the

two groups is evenly different, or in other

words the initial level of the two groups is

similar

3.3.2 Assess the test results of the low-handed

cushion technique with two hands of

students after the experiment

After developing and selecting supplementary exercises to overcome some common errors of students when performing low-ball cushion technique with two hands, the topic applied these exercises on the experimental group

After 01 month, the subject has evaluated the effectiveness after applying the additional exercises of experimental and control groups

The results are presented in Table 5 and Table

6

Table 5 Chi – Square Test results of 02 groups of female students after experiment

Value df Asymp Sig (2-sided) Pearson Chi-Square 6.619a 2 0.037

Linear-by-Linear Association 6.420 1 0.011

a 2 cells (33.3%) have expected count less than 5 The minimum expected count is 3.50

Table 6 Chi – Square Test results of 02 groups of male students after experiment

Value df Asymp Sig (2-sided) Pearson Chi-Square 6.604a 2 0.037

Linear-by-Linear Association 6.410 1 0.011

a 2 cells (33.3%) have expected count less than 5 The minimum expected count is 3.50

From the results of Chi squared test between 2

groups of male and female students after

experiment is respectively 6,604 and 6,619>

Chi square table is 5.99 with degrees of

freedom df = 2 [1] So, the level between the

two groups is different In other words, the

results above confirm that the supplementary

exercises that the project selected for the

experimental group have shown effectiveness

compared to the case-control group

4 CONCLUSION

1 Through pedagogical observation, the project has identified 5/8 errors that many students make when performing the technique of using low-handed ball with two basic hands, specifically:

- Error 1 Error when moving the ball

- Error 2 Error of preparing posture

- Error 3 Error of putting hands apart

- Error 4 Error of coordination between parts

of the body

- Error 5 Error of wrist contact

2 Based on that, the thesis has selected and

built 04 supplementary exercises

corresponding to 05 common mistakes of

students to overcome and improve the

technique of low-ball cushion with two

hands

- Exercise 1: Move 4 directions to catch the

ball

- Exercise 2: Cushion the ball into the wall or

hit the ball

- Exercise 3: Self throwing ball to buffer

- Exercise 4: Help knock the ball

3 After applying these supplementary

exercises to the experiments, the results of

the study confirmed that the effectiveness of

these supplementary exercises have

contributed to overcome the common

mistakes of students when performing the

technique of low-ball cushion with two

hands for non-major students in Physical Education at Tien Giang University

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