이 연구에서는 체지방율과 근력과의 관계를 명확히 하고자 한다. 기존에도 체지방율과 근력과의 관계에 대한 많은 연구들이 있지만 결과가 상반되어 있어 체지방율이 근력에 직접적인 영향을 미치는지 아닌지 확인할 수 없다. 따라서 이 연구에서는 동일 골격근량을 설정해 체지방율의 변화로 유도되는 최대 근력(One Repetition Maximum, 1RM)의 변화를 살핌으로써 순수한 체지방율의 차이가 최대 근력에 미치는 효과를 실제적으로 판별해 내고자 한다. 이 연구에서는 경북 소재 D대학생 140명을 대상으로 체지방율과 제지방량을 생체전기저항법(X-SCAN PLUS2)으로 측정하여 골격근량(25～30kg)이 동일한 대상자 30명을 선별해 체지방율에 따라 ≤11.9%, 12～16.9%, 17～22.9%, 23%≤으로 4그룹으로 설정하고 Bench press, Squat, ...
이 연구에서는 체지방율과 근력과의 관계를 명확히 하고자 한다. 기존에도 체지방율과 근력과의 관계에 대한 많은 연구들이 있지만 결과가 상반되어 있어 체지방율이 근력에 직접적인 영향을 미치는지 아닌지 확인할 수 없다. 따라서 이 연구에서는 동일 골격근량을 설정해 체지방율의 변화로 유도되는 최대 근력(One Repetition Maximum, 1RM)의 변화를 살핌으로써 순수한 체지방율의 차이가 최대 근력에 미치는 효과를 실제적으로 판별해 내고자 한다. 이 연구에서는 경북 소재 D대학생 140명을 대상으로 체지방율과 제지방량을 생체전기저항법(X-SCAN PLUS2)으로 측정하여 골격근량(25～30kg)이 동일한 대상자 30명을 선별해 체지방율에 따라 ≤11.9%, 12～16.9%, 17～22.9%, 23%≤으로 4그룹으로 설정하고 Bench press, Squat, Back strength dynamometer를 이용하여 1RM을 측정하여 체지방율에 따른 최대근력의 변화를 측정하였다. 측정항목의 모든 자료에 대해 Window용 SPSS(Ver. 21.0)을 이용하여 평균과 표준편차를 산출하였다. 체지방율과 최대근력 사이에 나타내는 상관성을 알아보기 위해 Pearson의 상관관계 분석을 실시했으며 그룹 간 평균 차 검증을 위해 반복측정 일원변량 분석을 실시하였다. 통계적으로 유의한 차를 보이는 경우 Tukey의 사후검증을 실시했으며 모든 자료의 통계적 유의수준은 ɑ=.05로 설정하였다. 체지방율의 변화에 따른 최대근력의 변화를 살핀 결과, 벤치프레스, 스쿼트, 및 배근력에서 서로 다른 양상을 나타냈으나 종목들의 1RM을 합산한 결과에서는 유의한 차이를 나타내지 않았다. 체중 1kg 당 최대근력의 변화를 살핀 결과에서는 벤치프레스(r2=.201, p=.012), 스쿼트(r2=.303, p=.0016) 및 배근력(r2=.329, p=.001)과 체지방율 사이에 유의한 부적 상관성을 나타냈으며, 각 종목의 1RM의 합과 체지방율의 관계에서도 유의한 부적 상관성(r2=.501,
이 연구에서는 체지방율과 근력과의 관계를 명확히 하고자 한다. 기존에도 체지방율과 근력과의 관계에 대한 많은 연구들이 있지만 결과가 상반되어 있어 체지방율이 근력에 직접적인 영향을 미치는지 아닌지 확인할 수 없다. 따라서 이 연구에서는 동일 골격근량을 설정해 체지방율의 변화로 유도되는 최대 근력(One Repetition Maximum, 1RM)의 변화를 살핌으로써 순수한 체지방율의 차이가 최대 근력에 미치는 효과를 실제적으로 판별해 내고자 한다. 이 연구에서는 경북 소재 D대학생 140명을 대상으로 체지방율과 제지방량을 생체전기저항법(X-SCAN PLUS2)으로 측정하여 골격근량(25～30kg)이 동일한 대상자 30명을 선별해 체지방율에 따라 ≤11.9%, 12～16.9%, 17～22.9%, 23%≤으로 4그룹으로 설정하고 Bench press, Squat, Back strength dynamometer를 이용하여 1RM을 측정하여 체지방율에 따른 최대근력의 변화를 측정하였다. 측정항목의 모든 자료에 대해 Window용 SPSS(Ver. 21.0)을 이용하여 평균과 표준편차를 산출하였다. 체지방율과 최대근력 사이에 나타내는 상관성을 알아보기 위해 Pearson의 상관관계 분석을 실시했으며 그룹 간 평균 차 검증을 위해 반복측정 일원변량 분석을 실시하였다. 통계적으로 유의한 차를 보이는 경우 Tukey의 사후검증을 실시했으며 모든 자료의 통계적 유의수준은 ɑ=.05로 설정하였다. 체지방율의 변화에 따른 최대근력의 변화를 살핀 결과, 벤치프레스, 스쿼트, 및 배근력에서 서로 다른 양상을 나타냈으나 종목들의 1RM을 합산한 결과에서는 유의한 차이를 나타내지 않았다. 체중 1kg 당 최대근력의 변화를 살핀 결과에서는 벤치프레스(r2=.201, p=.012), 스쿼트(r2=.303, p=.0016) 및 배근력(r2=.329, p=.001)과 체지방율 사이에 유의한 부적 상관성을 나타냈으며, 각 종목의 1RM의 합과 체지방율의 관계에서도 유의한 부적 상관성(r2=.501,
This study intends to clarify the relation between body fat percentage and muscle strength. There have been many studies on the relation between body fat percentage and muscle strength but with conflicting results, leaving it unclear whether body fat percentage has a direct effect on muscle strength...
This study intends to clarify the relation between body fat percentage and muscle strength. There have been many studies on the relation between body fat percentage and muscle strength but with conflicting results, leaving it unclear whether body fat percentage has a direct effect on muscle strength or not. Therefore, this study intends to investigate the change in one repetition maximum (1RM) led by the change in body fat percentage, by setting the same skeletal muscle mass. This will help clarify whether a difference in pure boy fat percentage has n effect on 1RM. Using 140 students at D university located in Gyeongbuk area, their body fat ratio and body fat amount were measured using X-Scan Plus 2, after which 30 subjects with the same skeletal muscle mass (25-30 kg) were selected. They were then categorized into four groups: equal to or below 11.9%, between 12 and 16.9%, between 17 and 22.9% and 23% or above. Using bench presses, squats and back strength dynamometer, 1RM was measured to measure the changes in 1RM in accordance with body fat percentage. For all data measured, their mean and standard deviation were calculated using SPSS for Windows (Ver. 21.0). In order to identify any correlation between body fat percentage and 1RM, Pearson’s correlation analysis was conducted. To verify the difference in mean between groups, one-way ANOVA was conducted. In the case where statistically significant difference was observed, Tukey’s verification was conducted and all statistical significance levels for the data used were set at alpha = .05. Changes in 1RM in accordance with changes in body fat percentage showed a different pattern for bench press, squat and abdominals but the sum of 1RM of these categories did not show any significant difference. Change in 1RM per 1kg of body weight showed that there was a statistically significant negative correlation between body fat percentage and bench press, squat, and abdominals, respectively. The correlation between total of each category’s 1RM and body fat percentage also showed a significant negative correlation. Based on these findings, it can be concluded that the exertion of maximum muscle strength within the body is not led by changes in pure body fat percentage but is affected by the difference in skeletal muscle mass. This study provides a basis for compiling the results of preceding studies that were often conflicting on the topic of correlation between body fat percentage and muscle strength. The findings of this study complements the limits of the preceding studies and specifies the correlation between body fat and muscle strength. The data is expected to be useful for setting guidelines for general health management and the health management for professional athletes, as well as for setting their training methods. However, given the limited number of subjects, a follow-up study using a larger number of subjects would be required and any difference between gender would also have to be looked into.
This study intends to clarify the relation between body fat percentage and muscle strength. There have been many studies on the relation between body fat percentage and muscle strength but with conflicting results, leaving it unclear whether body fat percentage has a direct effect on muscle strength or not. Therefore, this study intends to investigate the change in one repetition maximum (1RM) led by the change in body fat percentage, by setting the same skeletal muscle mass. This will help clarify whether a difference in pure boy fat percentage has n effect on 1RM. Using 140 students at D university located in Gyeongbuk area, their body fat ratio and body fat amount were measured using X-Scan Plus 2, after which 30 subjects with the same skeletal muscle mass (25-30 kg) were selected. They were then categorized into four groups: equal to or below 11.9%, between 12 and 16.9%, between 17 and 22.9% and 23% or above. Using bench presses, squats and back strength dynamometer, 1RM was measured to measure the changes in 1RM in accordance with body fat percentage. For all data measured, their mean and standard deviation were calculated using SPSS for Windows (Ver. 21.0). In order to identify any correlation between body fat percentage and 1RM, Pearson’s correlation analysis was conducted. To verify the difference in mean between groups, one-way ANOVA was conducted. In the case where statistically significant difference was observed, Tukey’s verification was conducted and all statistical significance levels for the data used were set at alpha = .05. Changes in 1RM in accordance with changes in body fat percentage showed a different pattern for bench press, squat and abdominals but the sum of 1RM of these categories did not show any significant difference. Change in 1RM per 1kg of body weight showed that there was a statistically significant negative correlation between body fat percentage and bench press, squat, and abdominals, respectively. The correlation between total of each category’s 1RM and body fat percentage also showed a significant negative correlation. Based on these findings, it can be concluded that the exertion of maximum muscle strength within the body is not led by changes in pure body fat percentage but is affected by the difference in skeletal muscle mass. This study provides a basis for compiling the results of preceding studies that were often conflicting on the topic of correlation between body fat percentage and muscle strength. The findings of this study complements the limits of the preceding studies and specifies the correlation between body fat and muscle strength. The data is expected to be useful for setting guidelines for general health management and the health management for professional athletes, as well as for setting their training methods. However, given the limited number of subjects, a follow-up study using a larger number of subjects would be required and any difference between gender would also have to be looked into.
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