Evaluation of Difference in Strength Levels of Major Muscle Groups of Light Weight Judokas

The search of excellence paves the way of hard work and ensures finest use of human intellect. In today‘s science era human potential have been excelled in extraordinary way. With modern inventions we have been facilitated with so many useful inventions who helped us leading our lives in an easy manner. Anything that is moving in the planet is propelled by either internal or external forces. With reference to human body the internal force that cause motion is produced by skeletal muscles. These skeletal muscles works under voluntary control of human brain. Different types of Games imposes specific type of strength for each sports. Strength plays a dominant role in determining performance in most of the combative sports. In the sports of Judo it requires explosive strength as prime motor quality in a Judoka. For a Judoka to excel in Judo he/she needs considerable amount of strength in following terms: grip strength, chest strength, back strength, and leg strength. A Judoka should also possess good level of endurance, agility, and flexibility along with above mentioned qualities. In present study a comparison have been made of above mentioned motor qualities between Judokas of -60kg and -66kg weight categories. The study caries the aim of determining whether a Judoka of concerned lower weight category really requires to improve his strength levels before switching to next higher weight category. To avoid taking part in next higher weight category so many Judokas prefer to lose their body weight. Their major concern for taking part in lower weight category lies in question ―whether their body possess required level of muscular strength to take part in next higher weight category‖? The author believes that the present study will serve as reliable baseline for Judokas competing in -60kg, and -66kg weight category. It may provide them with necessary help in making their decision.

34 Judokas (19+15 from -60kg and -66kg weight category respectively) were tested on 4 strength parameters namely grip strength, bench press, back strength, and leg strength. All these tests were conducted inside Judo hall of TT Nagar Stadium of Bhopal District. The subjects were provided with 15 minutes of warming up period. Grip strength test was measured using grip strength dynamometer equipment. Bench press exercise was performed by subjects on a flat bench, they were asked to perform 1RM. For measurement of back strength, back strength dynamometer was made utilised. Leg strength of all the subjects was measured using leg strength dynamometer. Digital dynamometers were

Table 1 consists of 6 columns and 5 rows, the most basic information related to selected independent variables have been displayed in above table. The group mean, sample size, standard deviation and standard error of mean of two weight categories namely -60kg and -66kg have been presented in above table. The above table clearly states the status of low and high performance of each group. Things to be noted down from table 1 can be observed in column 4, where mean scores of all the independent variables have been presented. In nut shell it is clearly visible that observable difference exist in all the concerned weight groups. Whether the observable difference in group means is statistically significant too can be figured out with the findings of table 2. By looking at the group means presented in column 4 it can be clearly observed that bigger muscle groups has higher group means. The study observed highest group mean for independent variable leg strength 134kg for -60kg, and 145.53 kg for Judokas belonging to -66kg weight category. Table-2: Independent Samples Test

Table-2 states the categories where statistical significant differences were observed. Most of the statistics texts suggests that p-value ≤ selected level of significance defines that significant difference exists between the two. According to table-2 the independent variables corresponding to column 7 has significantly different mean for both weight categories.

On the basis of statistical analysis, the present research study proposes following conclusions: Findings presented below are based on assumption that both datasets (-60kg, & -66kg) has equal variance.  The levels of grip strength were found significantly different for both groups. Higher mean value were recorded for heavier weight group.  The levels of chest strengths were found significantly different for both groups. Higher mean value were recorded for heavier weight group.  The levels of leg strength were found significantly different for both groups. Higher mean value were recorded for heavier weight group.  It was noticed that in case of back strength both groups has more or less similar level of strengths.  The mean score of grip strength was noted as 40.58kg, and 46.53kg for -60kg, and -66kg respectively .  The mean score of chest strength (bench press) was noted as 78.68kg, and 88.67kg for -60kg, and -66kg respectively.  The mean score of back strength was noted as 126.79kg, and 131.07kg for -60kg, and -66kg respectively.  The mean score of leg strength was noted as 134kg, and 145.53kg for -60kg, and -66kg respectively.

1. Kerimov, F. (2001) a kinetic analysis of uranage in judo Abstract: 2nd International Judo conference (Munich, Germany 2001). 2. Emerson Franchini et.al.(2007) Physical fitness and anthropometric profile of the Brazilian male judo team: journal of physiological anthropology.

Research Scholar, L.N.I.P.E. Gwalior