2003 年 36 巻 2 号 p. 1-11
The purpose of this study was to examine whether maximum strength (One repetition maximum,1RM) in the bench press can be predicted by a submaximal strength test (6RM) in judo players. Thirtythree male volunteers were grouped as follows: a) light class, subjects belonged to the 60kg,65 kg and 73 kg categories (n=11), b) middle class, sudjects belonged to the 81 kg and 90 kg categories (n=11), c) heavy class, subjects belonged to the 100 kg and +100 kg categories (n=11). All subjects participated in a 7month training program. Prior to the training program, and every month during the training period, a maximal strength test was performed to determine the 1RM value. The best lift within the 1RM tests was defined as an individual result. The results were as follows:
1) 6RM and 1RM values increased in proportion to body weight: light class<middle class<heavy class.
2) 6RM and 1RM values divided by body weight (6RM/BW,1RM/BW) decreased exponentially with an increase in body weight (r=0.831, p<0.001, and r=0.757, p<0.001, respectively).
3) Although 6RM values correlated well with 1RM values (r=0.854, p<0.001), there was a much stronger correlation between 6RM/BW and 1RM/BW values (r=0.880, p<0.001).
4) We developed an equation for predicting maximal strength in the bench press based on the regression formula calculated from the relationship between 6RM/BW and 1RM/BW as follows: 1RM =0.8094×6RM (kg)+0.4195×BW.