The Effect of Plyometric Single Leg Depth Jump to Power and

Strength of Leg Muscles in Male Basketball Athletes

Eko Rachlai Arisetiawan

, Fepriyanto Andi Nugroho

, Agung Supriyanto

Physical Education Study Program, Department of Physical Education STKIP PGRI Sumenep Indonesia

Keyword: Plyometric, Single leg depth jump, Basketball.

Abstract: The aim of this research is to analyze the effectiveness of plyometric single leg depth jump to increase

explosive power and strength of leg muscles in male basketball athletes of PERBASI Sumenep District. The

study used experimental research design with one group pretest and posttest design. The subjects were 20

male basketball athletes. The research subjects were given plyometric single leg depth jump for 6 weeks.

The results showed a significant effect on the strength and explosive power of leg muscles. This would

affect the ability of the athlete to jump.

1 INTRODUCTION

Basketball is a game in groups of five persons, or

also called as a team. Therefore, it is necessary to

establish a good communication and mutual

understanding between players in order to achieve

victory. Skills of each individual will have a

significant impact on the course of the game.

Basketball has some basic techniques such as

shooting, dribbling, defensive, pivot and soon

(Wanena, 2018),

Basketball needs agility and the ability to force

a jump (Bal, Parminder and Davinder, 2011). Some

components of physical conditions, such as strength,

endurance, coordination, balance, speed and

explosive power, should be owned by basketball

players (Asadi, 2013). Explosive power can be

connected with a jump. Jumping is needed to

perform jump shooting, block, rebound and slam

dunk. Jumping is essential for almost all sports, not

to mention in basketball.

One of the components from physical condition

that almost every sport needs is a muscle explosive

power. In the game of the sport, the explosive power

is used in explosive movements like throwing,

resisting, kicking and punching. Power is not a new

knowledge in the sports world, because almost all

sports require power. In developed countries, power

can be increased by using tools of advanced training

circuits. However, before increasing power, it is

improtant to improve strength and speed exercises,

because power can be generated using strength

training and speed in exerting maximum force to

overcome the resistance (Munizar, Razali and

Ifwandi, 2016).

Plyometric is a form of exercise that can be used

to improve muscle explosive power. Plyometric is

already known in the coaches and athletes during

recent times

. Plyometric is related to muscle

contractions and repetition, so that it can increase

muscle strength (Bal 2011). Plyometric can increase

the height of the jump and the speed of leg muscle

strength, and improve joints (Shaji, 2009; Arazi

2011). Several studies have shown that plyometric

exercise is able to improve muscle strength,

especially leg muscle strength (Adibpour, Hojatolah

and Naser. 2012; Arazi and Abbas, 2011; Asadi,,

2013; bale Parminder and Davinder, 2011; Rajan and

Pushparajan, 2010; Shaji and Saluja, 2009;

Stojanović, Nikodije and Toplica, 2012).

198

Arisetiawan, E., Nugroho, F. and Supriyanto, A.

The Effect of Plyometric Single Leg Depth Jump to Power and Strength of Leg Muscles in Male Basketball Athletes.

DOI: 10.5220/0009305601980202

In Proceedings of the 3rd Yogyakarta International Seminar on Health, Physical Education, and Sport Science in conjunction with the 2nd Conference on Interdisciplinary Approach in Sports

(YISHPESS and CoIS 2019), pages 198-202

ISBN: 978-989-758-457-2

Basketball is not new in Sumenep district

because Sumenep has coaching in the organization.

So far, the best achievement in the sport of

basketball in Sumenep regency has never completely

won at the regional and national levels. This is what

should be evaluated in training to basketball athletes

in Sumenep regency.

The aim of this research is to increase the

explosive power and strength of leg muscles by

using the plyometric single leg depth jump. The

selection of plyometric training using a single leg

jump depth is based on the consideration that it

involves muscle groups that are used when the

athletes play basketball.

2 METHOD

This study was a field experiment. It employed the

method of experimentation with the design of one

group pretest - posttest design.

2.1 Subject

The subjects were male basketball players of

PERBASI Sumenep. The subjects in this study were

20 male basketball athletes. The samples were

chosen using purposive sampling techniques based

on the traits or characteristics that are known in

advance by traits or characteristics of the population.

Anthropometric subjects were shown in Table 1. The

implementation of plyometric single leg depth jump

was given for 8 weeks starting March 24th - May

19th 2019.

2.2 Tool

Tools used in this research were back and leg

dynamometers. They were used to measure the

strength of leg muscles. Jump DF was used to

measure the explosive power of leg muscles.

2.3 Procedure

The first stage of this research prior data collection

was giving the subject an understanding of the goals,

objectives and procedures of the study. Each subject

filled consent letters to declare their willingness to

participate in research.



Figure 1: Single Leg Depth Jump

Table 1: Anthropometric research subjects

Physical Physiological Athletes (N = 20) Mean

Age (years) 19.82 ± 1,121

Height (cm) 172.2 ± 3.72

Weight (kg) 64.89 ± 4:11

Body Mass Index (kg / m2) 22:23 ± 1:23

The Effect of Plyometric Single Leg Depth Jump to Power and Strength of Leg Muscles in Male Basketball Athletes

199

Table 2: Results plyometric exercise

Variables Pre Test Post Test

muscle stren

(

169.97 ± 23:04 189.65 ± 23.60 *

losive

ower le

muscle

(

watt/J

)

245.71 ± 15:55 263.16 ± 19:06 *

*) Different significant (p <0.05) in advance of the pre-test and post-test

The second stage was that each subject was

given the initial test carried out by placing a test to

examine explosive power of leg muscles using a

Jump DF and leg muscle strength using the tool back

and leg dynamometer. After that, all athletes were

given treatment plyometric single leg depth jump for

6 weeks. It was conducted three times for every

week with a total of 18 times of training sessions. In

every meeting, the athletes spent 60 minutes,

consisting of 10 minutes of warming up, 40 minutes

of core exercises, and 10 minutes cooling down.

During plyometric training of single leg depth

jump, athletes were asked to stand in one foot on the

box measuring 30.48 centimeters (12 inches) to

45.72 cm (18 inches) with fingers close to the edge.

Athletes stepped out of the box and down the land

with one foot. They then performed advanced

motion jump as high as possible and landed with one

foot just as well as maintained contact with the

ground

2.4 Data Analysis

The tests for normality and homogeneity were

required prior to testing hypothesis testing. The

analysis of the data on this research was done using

t-test statistical methods (Independent-samples t-test)

with significance level of 0.05.

3 RESULT

The result of leg muscle strengths before performing

plyometric was 169.97 ± 23:04 (kg) and 189.65 ±

23.60 (kg) after exercise, for 6 weeks. The explosive

power of leg muscles was 245.71 ± 15:55 (Watt / J)

before training and 263.16 ± 19:06 (Watt / J) after

exercise, for 6 weeks. Results from the study showed

a significant difference (p <0.05) in the leg muscle

strengths between pre-test and post-test plyometric

single leg depth jump. Likewise, there is a

significant result (p> 0.05) in explosive power of leg

muscles between pre-test and post-test plyometric

single leg depth jump. Overall, study results were

shown in Table 2. These results showed effective

plyometric single leg depth jump to improve the

ability of the subjects.

4 DISCUSSION

Basketball is a sport that requires muscle strength

and good endurance because displacement of the ball

is very fast and also the displacement position of the

attacking and defending players are fast enough

Figure 2: Effectiveness plyometric single leg depth jump to the increased explosive power leg muscle

YISHPESS and CoIS 2019 - The 3rd Yogyakarta International Seminar on Health, Physical Education, and Sport Science (YISHPESS

2019) in conjunction with The 2nd Conference on Interdisciplinary Approach in Sports (CoIS 2019)

200

Figure 3: Effectiveness plyometric single leg depth jump to the to the increased leg muscle strength

The results showed that there was a

significant effect on strength and explosive power of

leg muscles on male basketball athletes using

plyometric single leg depth jump. The results of this

study was also similar to several previous studies

which stated that plyometric exercises can improve

athletes’ muscle explosive power and strength

(Adibpour, Hojatolah and Naser. 2012; Arazi and

Abbas, 2011; Asadi,, 2013; bale Parminder and

Davinder, 2011; Rajan and Pushparajan, 2010; Shaji

and Saluja, 2009; Stojanović, Nikodije and Toplica

2012).

Increasing muscle explosive power was

related to the ability of the athlete to jump

(Stojanović, Nikodije and Toplica. 2012; Rajan, and

Pushparajan 2010). The jumping in basketball was

used for defending or attacking. The strength and

explosive power of players also depends o

n the

anatomy and physiology of the athletes (Stojanović,

Nikodije and Toplica. 2012).

Basically the explosive power of leg muscles

was used to jump, when an athlete is doing the

shooting. Leg have advantages

to hold athletes’

weight, so the leg muscles are required to

have

explosive power due to the influence of the Earth's

gravity, (Annuri, 2014),

One of thing that must be understood is that

an important factor affecting the explosive power of

the muscle is muscle and nervous systems

(Stojanović, Nikodije and Toplica. 2012). This is

because a good explosive power can occur because

of good coordination muscle groups. It was

supported by the nervous system that manages these

muscles (Stojanović. Nikodije, and Toplica. 2012).

There is another factor affecting the high jump and

explosive power, namely the power of anaerobic

muscles and individual athletes (Adibpour,

Hojatolah and Naser. 2012). The higher the jump,

the higher the anaerobic. The stronger the muscles,

the more explosive the power. This could inform to

the coaches to make exercise program to increase the

athletes’ capacity of anaerobic strength.

Plyometric can be done in the water and in the

land. (Arazi and Abbas, 2011) revealed that

plyometric workouts in the water and in the land

were able to increase the power of speed

performance of athletes, especially in the power of

jump. The combination of training location will also

make the athlete more enjoy and do not feel

depressed. It could increase the spirit of the athletes

(Arazi and Abbas, 2011).

The combination of exercise resistance and

plyometric can improve muscle movement speeds

and cause a faster transition from eccentric to

concentric contraction (Arazi and Abbas, 2011).

However, plyometric has the risk of injury that can

be caused by external forces that are too big happens

in the joints, bones, muscles, ligaments and tendons

(Arazi and Abbas, 2011). It can inhibit the

development of the athletes’ skills themselves.

A coach was demanded to be able to improve

the athletes’ performance. A coach is advisable to

consider a number of factors when planning a

training program for their athletes’ explosive power.

Among them, one of the considerations is the

athletes’ characters, the level of skills, position, and

playing time. Explosive power program should fit

the needs of any player on the team; therefore, a

The Effect of Plyometric Single Leg Depth Jump to Power and Strength of Leg Muscles in Male Basketball Athletes

201

number of explosive power and conditioning

program can be developed and implemented for

individual team members during the annual season

(Duran et al., 2019).

5 CONCLUSION

The conclusion of this study is a significant increase

which occurs in strength and explosive power of leg

muscles on male basketball players using plyometric

single leg depth jump. These results indicated that

the ability of the athletes, especially at the increase

jump ability. The coaches are suggested to add some

exercise about plyometric to improve athletes’ jump

ability.

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2019) in conjunction with The 2nd Conference on Interdisciplinary Approach in Sports (CoIS 2019)

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