여대생 웨이트 트레이닝 초보자의 벤치 프레스와 스쿼트 인지강도와 실측강도의 차이 및 인지강도와 체중을 이용한 1-RM 추정
Difference between Cognition and Measured Intensity of Bench Press and Squat for Weight Training, and Prediction of 1-RM Based on Cognition Intensity and Body Weight in College Untrained Women
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[서론] 본 연구의 목적은 여대생 웨이트 트레이닝 초보자의 벤치 프레스와 스쿼트의 60%, 75% 및 90% 인지강도와 실측강도 차이를 비교하고, 인지강도와 체중을 이용하여 1-RM 추정식을 개발하고 설명력을 검증하는 데 있다. [방법] 본 연구에서는 여대생 웨이트 트레이닝 초보자 29명을 연구대상으로 선정하였다. 인지강도는 피검자가 수행하는 강도의 부하를 알지 못하도록 한 상태에서 자신의 1-RM의 60%, 75% 및 90%의 무게를 선택하도록 하였다. 실측강도는 1-RM을 직접 측정하고, 1-RM의 60%, 75% 및 90%에 해당하는 강도를 산출하였고, 측정은 무선으로 배당하였다. 인지강도와 실측강도 차이를 비교하기 위하여 t-test를 실시하였고, 인지강도와 체중을 이용하여 1-RM을 추정하기 위하여 회귀분석을 실시하였다. [결과] 여대생 초보자의 경우 벤치 프레스와 스쿼트의 60%, 75% 및 90% 모두 인지강도와 실측강도간에 유의한 차이가 나타났다(p<.01). 벤치 프레스의 인지강도가 실측강도보다 3.4~6.6kg과 6.6~15.4% 낮았고, 스쿼트는 9.6~15.1kg과 12.1~22.9% 정도 낮게 나타났다. 벤치 프레스와 스쿼트의 인지강도 % 1-RM의 차이의 경우 60%, 75% 및 90% 모두에서 유의한 차이가 나타나지 않았다. 벤치 프레스 인지강도 추정모형의 r은 0.63~0.81이고(p<.01), 스쿼트 추정모형의 r은 0.67~0.80(p<.01)로 나타났다. 벤치 프레스 인지강도-체중 통합모형의 r은 0.76~ 0.83이고(p<.01), 스쿼트 통합모형의 r은 0.73~0.83으로 나타났다(p<.01). [결론] 여대생 초보자는 인지강도가 실측강도보다 6.6~22.9% 정도 낮게 나타났다. 인지강도의 경우 벤치 프레스는 6.6~15.4%, 스쿼트는 12.1~22.9% 정도 실측강도보다 낮게 나타났다. Bench press 1-RM = -18.136 + 0.928 * 인지강도 90% 1-RM(kg) + 0.470 * 체중(kg). Squat 1-RM = - 36.527 + 0.811 * 인지강도 90% 1-RM(kg) + 1.029 * 체중(kg). 향후에는 더 많은 동작을 대상으로 다양한 변인을 이용하여 다양한 연령층에 적합한 추정모형을 산출할 필요가 있겠다.
Abstract
[INTRODUCTION] The purposes of this study were to compare the differences between the cognition and measured intensities in bench press and squat for weight training in college women beginner, to develop an estimated equation for 1-RM using the cognition intensity and cognition-body weight, and to verify the validity of the developed model. [METHODS] The subject groups were consisted of 29 college untrained women. Each subject selected the cognition intensity of 60%, 75% and 90% of 1-RM without knowing the actualload that applied to the subject. The measured intensities were calculated 60%, 75% and 90% of 1-RM after 1-RM measurement. The t-test was run to analyze the significant differences between the cognition and measured intensities, and the regression analysis was applied to estimate 1-RM using the cognition intensities and body weight. [RESULTS] There was a significant difference between the cognition and the measured intensity of 60%, 75% and 90% 1-RM on both bench press and squat in the college untrained women (p<.01). The cognition intensities of bench press and squat were 3.3~6.6kg(6.6~15.4%) and 9.6~15.1kg(12.1~22.9%) lower than the measured intensity, respectively. Based on the regression analysis, the r of prediction for the bench press 1-RM by cognition 1-RM was ranged from 0.63 to 0.81(p<.01), and the r of prediction for the squat 1-RM by cognition 1-RM was ranged from 0.67 to 0.80(p<.01) in college untrained women. The r of prediction for the bench press 1-RM by cognition-body weight 1-RM was ranged from 0.76 to 0.83(p<.01), and the r of prediction for the squat 1-RM by cognition-body weight 1-RM was ranged from 0.73 to 0.83(p<.01). [CONCLUSION] In college untrained women, the cognition intensities were 6.6~22.9% lower than the measured intensities. The cognition intensities of bench press and squat were 6.6~15.4% and 12.1~22.9%, respectively, lower than those of measured intensities. The significant estimation models for 1-RM were developed both cognition and cognition-body weight model. Bench press 1-RM = -18.136 + 0.928 * cognition 90% 1-RM(kg) + 0.470 * body weight(kg). Squat 1-RM = - 36.527 + 0.811 * cognition 90% 1-RM(kg) + 1.029 * body weight(kg). This study suggests that the estimation model for various age groups should be developed based on multiple motions for the future study.
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