Study on the Evaluating Method of Hardness and Slipperiness of Aerobic Dance Floors
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.9 Vol.9】
(1) Presentation of the evaluating method of hardness of aerobic dance floors:
At first, the evaluating scales on hardness of floors were composed by means of sensory test. The scales were composed from a viewpoint of comfortableness, fatigue, and safety of aerobic dancers. The sensory test was taken place under the following conditions, namely, the method of test was "the method of successive categories", samples were 12 floors panels were 20 female aerobic dance instructors, and shoes were aerobic dance shoes and ballet shoes. Next, the dynamic load which act to the floors by dancers was analyzed. Based on the results of the analysis, the measuring conditions of "the Apparatus for Measuring Resiliency of Gymnasium Floors" was changed in order to adapt to the dancers' load, and the measurement of hardness of sample floors was carried out. After the consideration of the correlation between the results of measurement and the evaluating scales, it was found that the most suitable parameter which indicate the degree of hardness of floors was "UF-1.1DR・DR/TR", and the most suitable value of parameter was about 20 by "UF-1. 1DR・DR/TR". Finally, the evaluating indexes and method of hardness was presented, based on the correlation between "UF-1.1DR・DR/TR" and the evaluating scales.
(2) Presentation of the evaluating method of slipperiness of aerobic dance floors:
At first, the evaluating scales on slipperiness of floors were composed by similar way with "hardness". Next, the measurement of slipperiness of sample floors was carried out by using "O-Y PULL SLIP METER (O-Y PSM)," and "the Coefficient of Slip Resistance (C. S. R)" was evaluated to indicate the proper degree of slip resistance of floors. After the consideration of the correlation between the "C.S.R" and the evaluating scales, it was found that the most suitable value of "C.S.R" was about 0.7. Finally, the evaluating indexes and method of slipperiness was presented, based on the correlation between "C.S.R" and the evaluating scales.
DESCENTE SPORTS SCIENCE Vol.9/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
At first, the evaluating scales on hardness of floors were composed by means of sensory test. The scales were composed from a viewpoint of comfortableness, fatigue, and safety of aerobic dancers. The sensory test was taken place under the following conditions, namely, the method of test was "the method of successive categories", samples were 12 floors panels were 20 female aerobic dance instructors, and shoes were aerobic dance shoes and ballet shoes. Next, the dynamic load which act to the floors by dancers was analyzed. Based on the results of the analysis, the measuring conditions of "the Apparatus for Measuring Resiliency of Gymnasium Floors" was changed in order to adapt to the dancers' load, and the measurement of hardness of sample floors was carried out. After the consideration of the correlation between the results of measurement and the evaluating scales, it was found that the most suitable parameter which indicate the degree of hardness of floors was "UF-1.1DR・DR/TR", and the most suitable value of parameter was about 20 by "UF-1. 1DR・DR/TR". Finally, the evaluating indexes and method of hardness was presented, based on the correlation between "UF-1.1DR・DR/TR" and the evaluating scales.
(2) Presentation of the evaluating method of slipperiness of aerobic dance floors:
At first, the evaluating scales on slipperiness of floors were composed by similar way with "hardness". Next, the measurement of slipperiness of sample floors was carried out by using "O-Y PULL SLIP METER (O-Y PSM)," and "the Coefficient of Slip Resistance (C. S. R)" was evaluated to indicate the proper degree of slip resistance of floors. After the consideration of the correlation between the "C.S.R" and the evaluating scales, it was found that the most suitable value of "C.S.R" was about 0.7. Finally, the evaluating indexes and method of slipperiness was presented, based on the correlation between "C.S.R" and the evaluating scales.
DESCENTE SPORTS SCIENCE Vol.9/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Hidenori Ono, Takamasa Mikami, Yutaka Yokoyama |
|---|---|
| University or institution | Tokyo Institute of Technology |
Keywords
aerobic dance, hardness of floors, sensory test, slipperiness