PURPOSE This study examined the effect of sports life skills and life skills transfer of student-athletes and coaches, applying Actor-Partner Interdependence Model (APIM). METHODS Korean student-athletes and coaches from middle and high school sports teams participated in this study. There were 300 student-athletes (Mage=15.44, SD=1.64; male=218, female=82), with an average of 5.46 (SD=2.40) years of athletic career. Meanwhile, 33 coaches were (Mage=39.70, SD=8.36; male=26, female=7), with an average of 13.52 years of coaching career (SD=10.01). Measures included the Life Skills Scale for Student-Athletes (LSSSA; Jang et al., 2020) and Korean Life Skills Transfer Survey (KLSTS; Lim et al., 2018). Descriptive analysis, correlation, and APIM were undertaken by using the SPSS and AMOS programs. RESULTS First, the correlation between athletes’ and coaches’ life skills was not significant. Second, athletes’ life skills significantly affected their life skills transfer, similar to coaches’ life skills significantly affecting their life skills transfer. Fourth, coaches’ life skills did not significantly influence athletes’ life skills transfer, and the converse was not true either. CONCLUSIONS This study verified the effect of life skills development for two groups of athletes and coaches, on transfer in sports, and attempted statistical verification of whether it affects sports life skills and transfer between athletes and coaches. Although no statistically significant results were found in the partner effect, it is meaningful in that, it provided important implications for conducting a follow-up study on the relationship between athletes and coaches. In other words, it is expected to be a cornerstone for research on building a new model, along with investigating the interactive relations between athletes and coaches on life skills in the sports field.
The purpose of this study was to investigate the effect of running economy and energy return in lower extremities according to the increase of bending stiffness of the shoes, furthermore to investigate the relationship between running economy and energy return for the improvement of sports performance. Subjects employed for this study were 10 healthy male college students who have not had the experiences in lower extremities injuries. Four different kinds of shoes in bending stiffness as with 0.56 N/mm, 0.74 N/mm, 0.96 N/mm, 1.21N/mm were used respectively. 3-D cinematography and pulmonary gas analyzer were utilized for energy return and energy consumption data during running according to the increase of bending stiffness of the shoes to obtain the following results. As the bending stiffness of running shoes increased, the statistical significance were not founded, however, the tendency of decrease in max. flexion moment and power, increase in max. extension moment and power in lower extremity joint were showed. Joints energy showed no statistical significance in phase 1, however, the tendency of lesser absorbtion as the bending stiffness of running shoes increased were showed. More energy were generated as the bending stiffness of running shoes increased in phase 2 with no statistical significance. Energy economy increased according to the increase of bending stiffness of running shoes. Negative correlation were showed between flexion moment of hip joint and energy consumption(p<0.05). Slightly higher degree of correlation between max. flexion power of hip and ankle joint and energy consumption were showed without statistical significance. Negative correlation were showed between joints energy and energy consumption for ankle joint in phase 1(p<0.05).
