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POSTER ABSTRACTS - THURSDAY, 21 MAY 2015hip adductor muscles, hip external rotation muscles, quadriceps muscle), Finger Floor Distance anddeep squatting. We defined failure of the items as a positive. We examined the relationship betweenSEBT 9 items and muscular flexibility 6 items using of Chi-squared test (p-value 5%). •Results: As for Right-leg stance of SEBT, the significant relationship was between posterior andleft iliopsoas muscle (p < 0.05). As for Left-leg stance, the significant relationships were betweenanteromedial and bilateral hip adductor muscles, anterior/posterior and bilateral hip externalrotation muscles, posteromedial/posterolateral and deep squatting, posteromedial and leftquadriceps muscle (p < 0.05). •Conclusion: In this study, the ability of dynamic balance more related to muscular flexibility. It wassuggested that improvement of muscular flexibility is important because fine the ability of dynamicbalance is associated with high performance and decreasing injury accidents. In the future, it isnecessary to assess individual alignment and muscular strength during dynamic balance test toclarify more relationship between the ability of dynamic balance and muscular flexibility.P04.05Running performance during recreational soccer match in Japanese senior players agedOver-60 yrsSatoshi Ishizaki(1), A Souma(1), R Iseyama(1), K Sakaue(1), M Yasumatsu(2), M Ayabe(3), HNaito(4)(1) Shibaura Institute of Technology, Japan(2) Rikkyo University, Japan(3) Okayama Prefectural University, Japan(4) Juntendo University, JapanOlder individuals tend to play soccer for the recreational purpose rather than the competitivemotivations. Regardless of the aims of the play, the soccer is expected to include the severe physicalstress such as the high intensity intermittent exercise. The purpose of this study was to characterizethe running performance during the recreational soccer games in older players aged Over-60 yr.Thirty-two senior soccer players (age; 64.3 •} 3.0 years) participated in this study. Subjects played20-min half soccer game on an official-sized pitch. Running performance was assessed by a semiautomatictracking system using a particle filter (Iseyama et al., 2014). The locomotion categorieswere as follows; standing (0-2km/h), walking (2-7 km/h), low-speed running (LSR, 9-13 km/h),moderate-speed running (MSR, 13-16 km/h), high-speed running (HSR, 16-22 km/h), and sprinting(>22 km/h). As results, the total distance covered was 4461 •} 314 m in 40 min., and itsignificantly decreased from the 1st half to the 2nd half (2309 •} 244 m to 2151•}385 m, p