THE EFFECT OF WEIGHT TRAINING WITH FAST AND SLOW RHYTHM MOVEMENT TOWARDS STRENGTH ENHANCEMENT

The achievements competi tiveness in sports happens because there are so many prizes and bonuses which are promised when somebody becomes a champion, i t makes peop le s trive to improve thei r performance in many ways in terms of s trength. One of the efforts is from physical exercises . Phys ical exercise to increase s trength is by li fting weights . The impact o f o ther forms of weight tra ining can be done to increase the s trength. In th is research, the wri ter would only look at the effect o f weight training wi th a fast beat and slow rhythm towards the rate of strength enhancement.

Th e a chi e vemen ts compe ti ti ven ess i n spo rts hap pens b ecause th ere a re so man y p ri zes and bon uses whi ch a re promised w hen some bo d y be comes a champ ion , i t makes peo p le s tri ve to impro ve th ei r pe rfo rman ce in man y w a ys i n te rms o f s tren g th . One o f the e fforts is from ph ysi cal e xercises . Ph ys ical e xe rcise to in crease s treng th is b y li fting wei gh ts . Th e impa ct o f o the r fo rms o f we igh t tra ini ng can be d one to i ncre ase the s treng th . In th is rese arch , the wri te r wo uld onl y l oo k a t th e e ffe ct o f wei gh t trai nin g wi th a fast bea t and sl ow rh ythm tow ards the ra te o f stre ng th en han ceme n t.
As for those w ho trie d to b e i nclud ed i n the s tu d y we re d eri ved from the pop ula tion o f b o ys g ra de I a nd II o f SMA N e ge ri 3 Pada ng . From th e to ta l o f th e po pul a tio n , the wri te r rand omi zed as man y as 40 p eop le as a sampl e . After these tw o g rou ps un de rwe n t the ini tial tests , th en th e w ri te r trie d to d i vide them i n to 2 groups a gai n , wi th ea ch group co nsis tin g o f 2 0 pe opl e . Be fo re th e trea tmen t was cond u cted , some bo ys we re g i ven o u t the tri al tes ts . This i ni ti al tes t was cond ucted to de te rmin e the le vel o f in i tia l stre ng th ow ned b y samp le a nd trie d to d i vide peo pl e in to two homog ene ous g rou ps. Afte r th e sample had do ne th e in i tia l tes ts and had b een di vid ed i n to tw o g ro ups , the n fo r g rou p I was g i ven th e we igh t tra ini ng trea tm en t w i th fas t rh ythm , wh ile th e second group was gi ve n th e trea tmen t o f we igh t tra ini ng w i th a sl ow rh ythm .
Trea tme n t was g i ven fo r 2 mo n ths w i th th e p ra cti ce i n tensi ty w as 3 times pe r w ee k. After the samp le trie d to compl e te th ei r train ing prog ram , th en d o an o the r tes t (fin al tes t). This se con d tes t fun cti ons to se e ho w much th e in flue nce o f th e trea tme n t gi ve n b y the tra ine r com pa ri ng to the resul ts o f prelimi na ry tes ts. From th e d a ta a nal ysis , i t can be se en th a t; 1. We igh t tra ini ng w i th fas t rh ythm mo vemen t ca n en han ce the s treng th sign i fi can tl y ¬. It is b ased on P <0 .0 5 o r valu e tO> from t ta bl e . 2. We igh t tra ini ng w i th slo w mo tio n rh ythm can e nha nce the s tren g th sig ni fi ca n tl y It is base d o n P <0 .0 5 o r valu e tO> o f the t tab le . Th ere we re no d i ffe ren ces i n stre ng th enh an ceme n t b y cond ucting th e trea tmen t o f we igh t tra ini ng wi th fast rh ythm a nd slo w rh ythm. It is pro ved th a t P> 0 . 05 or va lue tO < o f t ta ble . TH E EFFEC T OF WEIGH T TR AIN IN G WITH FAST AND SL OW RH YTH M MOVE MEN T TOWAR D S  STR EN GTH EN H ANC EMEN T.

INTRODUCTION
Many people around the world want the ideal body shape which is proportional, muscular and strong. The imagination of the perfect body shape has been in people's mind since long time ago. In ancient Greece, some sculptures made stone carving of human body shape that were more God-liked and looked more perfect. This was done by Phidias and Polycletus. By making 20 models in their research, they found the proportion of the perfect body shape, which they named the Doryphores (javelin thrower). They illustrated that the human body is the perfect body shape of a man with broad shoulders and a thick and square chest. (McArdle, 1981).
A fresh and healthy body is necessary in conducting any activities effectively and efficiently. While powerful and muscular body, can make a person's body to be charming to look at. Not to mention in the world of sport, a strong body is one of the deciding factors for a person to achieve the expected performance. Especially for sports, it really requires power such as weight lifting, wrestling, boxing and other forms of the other sports.
To achieve the best performance and prestige in the world of sports, tempted by promising gifts, and many other benefits that can be learned, if someone won, making people attempt to enhance their capabilities. In the world of sports, it should be supported by a variety of factors to achieve a high performance, such as technical ability, physical condition, tactics and strategy. If there is any weak factor from those that are mentioned, it will disturb the other factors.
The physical condition is the most important factor of all the factors mentioned above. Since someone can not be able to learn and practice his or her techniques and others, if there is no power. The physical conditions includes; strength, endurance, speed, agility, balance, flexibility and coordination.
In the branches of non-resistance exercise (anaerobic), the elements of power, speed and flexibility, and agility are needed, even it is a decisive component for achieving the desired performance. Therefore, to improve the physical condition, the absolute physical exercise must be carried out. The physical workout that can increase t he strength is by Post test Post te st Y J u l y 1 5 , 2 0 1 5 weight training. It is aligned with what is said by (Soekarman 1986) that: "If we want to improve performance in sports, it is absolutely necessary to increase our strength, while the training to increase our strength is by lifting weights."

A. Muscle Strength
Strength is the ability of a muscle or group of muscles to perform a maximal activity. According to (Costill,1986) that: "power or strength is defined as the maximum ability to resist force." Meanwhile, according to (Alan Stull, 1980); "muscle strength is the maximum amount of tension, in which the muscles can do in a single contraction". Whereas (Fox, 1988) states that; "strength can be defined as a force or strains of a muscle or group of muscles that can go through the maximum effort." Strength is the important element of the physical condition which is dominant among the elements of the other physical conditions. Since if there is no strength, there would be no speed, durability and other conditions. It is impossible for us to do some work or even walk if there is no strength or power. Therefore, power training needs a serious attention for athletes in particular, who demand a high strength, and to improve and maintain health and physical fitness in general.
To improve the strength, the weights level should be maximal with a few repetitions. This was also pointed out by (O'Shea,1976) that: "weight training with sub-maximal weights is not going to earn maximal strength development. For example; the repetitions that are performed 1-3 times with heavy loads 90 % will affect maximal strength development". In another study conducted by (Jensen,1984) reported that: "the strength will increase rapider by practicing muscle contraction approaching maximal, done with 5-10 times repetitions".

B. Weight Training
A Weight training exercise is a systematic activity that is done repeatedly with heavy bars, dumbbells, or heavy stacks that progressively increases. Weight training means that in carrying out a physical exercise, body (skeletal muscle) gets load (weights burden) from outside of the body. A weight that is lifted by muscle is not the burden of the weight of the body, but is an additional burden from outside the body. For an instance lifting barbell or dumbbell.

Weight Training with rapid Rhythm Movement
A rapid rhythm movement of weight training means that lifting the weights with rapid movement. The advantage of this training method is that the number of reps (number of repetitions) is greater. However, the weakness of this method is that it can not be performed with the maximum weights of load. It is because if we do the rapid rhythm movement at the maximum weight of load, it can cause injury to the muscles and tendons (strains).
In weight training with rapid rhythm movements tend to develop speed strength and explosive power. These forms of exercise are very useful for sports branches demanded strength and speed as well as high explosive power.

Weight Training with Slow Rhythm Movement
Weight training with a slow rhythm movement is where in the training (weight lifting exercises), the movement performed is slower. The advantage of this exercise method is that the weight load can be left up with the maximum weight. Yet, the weakness is the number of repetitions is fewer and the muscles tend to be easily strained as well as it prone to injury. Weight training with a slow movement tends to develop strength, because the weight of the load is maximal. Since the movement is slower, then the speed conditions can not be increased. This exercise program is more suitable for sports that require maximum strength. In carrying out this research, the researcher did not classify the weight to the first group and the second group. This means that weight training was given to both groups was the same as that of the maximum power of each. The thing that was different was the speed of the movement, where the first group did the exercise with a rapid movement, while the second group did it a with slow rhythm movement.

C. The Training Effects towards Body
By conducting weight training done with either rapid or slow rhythm movement, it will definitely increase strength and muscle hypertrophy, due to the weight, then the nervous system that control the contraction and relaxation of muscles will be more aroused. This will affect the increase in muscle strength.
According to (Fox, 1988), it is stated that: "there are two possibilities of the nervous system that affects muscle strength; 1) With the increasing number of motor units involved in each muscle contraction.
2) An increase in stimulation of the each motor unit itself.
Meanwhile, according to (Larry G. Shaver,1981), it is stated that: "weight training might cause muscle hypertrophy as a result of changes in : a) the increase of the total number of myosin, actins and other myofibril proteins, b) the increase the total number of contractile protein, myofibrils per fiber, c) the increase in large and strength of connective tissue, ligame nts and tendons, d) the increase of blood circulation network (capillaries and venules) per fiber, and e) Increasing the concentration of myoglobin, as well as other biochemical changes". CHAPTER III RESEARCH METHOD J u l y 1 5 , 2 0 1 5

A. Type of Research
The study, entitled "The Effe ct o f Wei gh t Train ing wi th R api d and Sl ow Rh ythm Mo vemen t to wa rds Stren g th Enh an cemen t " is an experimental research. In conducting the research, the writer gave treatments to the sample of population. The treatment itself could be in the form of weight training. The first group was given the weight training treatment which was done with a rapid rhythm movement. Meanwhile, the second sample was given the same treatment, but with slow rhythm movement. It was expected that the researcher could find valid results and draw conclusions.

B. Research Design
The research design of this research was Randomized Pretest-Posttest Design. In terms of methodology, this design can be regarded as a valid and reliable method, as well as qualified for this kind of experimental research.
The design of the study can be seen in the following chart:

. Techniques of Data Analysis
All the data obtained in this study, whether it is the primary or secondary data, processed and analyzed by using descriptive and inferential statistics with the formula t test at a significance interval of 5% or 95% of co nfidence intervals.

A. De scription of the Data
Based on the result of the pre test and post test towards the level of strength of both sample, it could be obtained the following results: Initial Test (Pre Test) Data obtained from the initial measurement of the level of strength is: Before the treatment was given, the writer tried to divide the sample into two groups. The group division was done in order to avoid a significant difference between the groups (homogeneous), so that if there is a difference in the final test results were an actual effect of the treatment. The results of initial tests and classification can be seen in table 2. Based on the initial test results and classification, the total score obtained by the first group was 2816 with an average value of 140. 8. The highest score was 260 and the lowest score was 92. The total score of the second was 2703 with an average value of 135.2. The highest score was 175 and the lowest score was 53.

Final Test Results (Post Test)
To see the effect of the treatment, after doing the exercises for 2 months, then each group performed another test (final test

The results of the initial test
To prove that the initial strength of group 1 to group 2 is in a homogeneous, then the writer conducted the t -test. Based on the analysis, it was obtained that P> 0.05. or tO smaller than t table (1,069 <2,093). It can be concluded that between group 1 and group 2 there was no significant difference (homogeneous).

The results of the final test
After conducting the initial tests and it was certain that there was no difference between the groups, then the two groups were given a treatment. After each group had done all the treatment, they were carried out the second test (final). Based on the analysis, it was obtained that P> 0.05 or tO was less than the value of t table (0970 <2093). It can be concluded that there was no significant difference between the increases of strength of group 1 with group 2.

a. The Effect of treatment in group
To see the improvement that occurred during the treatment given, it must be performed the t-test during pre-test and post test. Based on the analysis done by the researcher, it was obtained results as follows: 1) The effects of treatment in group 1 Based on the analysis, P <0.05 or tO was greater than the value of t 2) the effects of treatment in group 2 Based on the analysis, P <0.05 or the value of tO was greater than t table (6488> 2093). It can be concluded that in group 2 there was significant differences between the pre-test and post-test. In other words, weight training with slow rhythm movement might also increase strength.
Based on the above analysis, it can be summed up that the first a nd second hypothesis proposed in this study, might be accepted as true. Yet, the third hypothesis turned out to be rejected. However, based on the mean difference between the post test results obtained by group 1 and group 2 have showed differences. This can be seen in table 5, the mean obtained at post test of group 1 is greater than the mean obtained in group 2 as well as the total score.

A. Conclusion
Based on the results of findings and discussion, it can be concluded as follows; 1) Weight training with rapid rhythm movement can increase the strength significantly (P <0.05) or the value of tO> t table.
2) Weight training with slow rhythm movement can increase strength significantly (P <0.05) or to> t table.
3) There was no significant difference between the increase of strength in group 1 with group 2 (P> 0.05) or tO <t table.

B. Suggestion
1) To increase muscle strength, both forms of exercises can be applied with a proper technique.
2) It is expected that there will be further researches that discuss more this weight training.