集成材の剣道場床面の機能性評価に関する因子構造の特徴と床面特性と機能性評価の関連

抄録

 In recent years, finger joints and laminated panels (FJLP) have been used for non-coated flooring in kendo-jyo (kendo practicing facilities). The aims of the present study were to comparatively evaluate 3 types of flooring—FJLP, pure panels (PP), and polyurethane coating (PC)—in terms of functionality and conduciveness to kendo. The research participants were 886 students from 16 university kendo clubs (N: FJLP=561, PP=148, PC=177). Principal factor analysis (normal varimax method) was applied, and factors relevant to FJLP were extracted in order to evaluate functionality in terms of “movement of fumikomi-ashi and suri-ashi and bearing on the body” (F1), “movement of fumikiri” (F2), and “bearing on the feet” (F3). The 2 other types of flooring (PP and PC) were found to be similar to FJLP in terms of F1 and F3. With regard to F2, however, FJLP was found to be dissimilar to PP but similar to PC, despite the fact that both FJLP and PP are non-coated. Multiple regression analysis of the results revealed the following kendo-conducive combinations: cedar, long direction and F1; cedar, non-regrinding, springs, oil finishing and F2; short direction, non-regrinding, springs, oil finishing and F3. Cedar, non-regrinding and oil finishing were found to be particularly kendo-conducive in FJLP kendo-jyo. FJLP therefore has its own unique characteristics, just as it also requires its own unique maintenance procedures.