http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
다리 근력이 노인 여성의 유연성과 평형성 및 보행 특성에 미치는 영향
정제순(Jae Soon Chung) 한국발육발달학회 2011 한국발육발달학회지 Vol.19 No.3
The purpose of this study was to estimate Leg Strength and Flexibility, Balance, Gait by aging. In a population-based sample of female elderly aged 65-75(n = 152), leg strength was measured in two muscle groups (knee extensor, knee flexor) of both legs using an isokinetic dynamometer. A leg strength score was calculated as the sum of the four strength measurements in the both legs. Sit & reach, Balance(One leg with eyes opened and timed upandgo), gait were measured. Subjects were separated into four groups in the first, second, third, or fourth quartiles of using Leg strenrth score: Q1(n = 36), Q2(n = 40), Q3(n = 40), Q4(n = 36). All data were analyzed by one-way ANOVA and Pearson Correlation of SPSS. In the whole subjects group, Leg strength score was increased and related to Sit& reach and One leg with eyes opened and timed up-and go(r=.40, .37, -.35) and significant correlation coefficients between Leg strenrth score and Cadence, Stance Time, Swing Time, Double Supp. Time, Velocity, Step Length, Stride Length, Step Extremity, HH Base Support(r = .44, -.21, -.45, -.33, .49, .27, .24, .47, .25). In the subgroup, Sit & reach, Balance and gait parameters were significantly differences between group. Sit & reach, Balance, gait parameters were significantly higher in the Q3, 4 group(p < .001). In conclusion, strength exercise of Leg muscle is effective on improvement Sit & reach, Balance and gait in the korean elderly women.
슬괵근의 유연성이 여성노인의 균형력과 보행에 미치는 영향
정제순(Jae-Soon Chung) 한국발육발달학회 2017 한국발육발달학회지 Vol.25 No.1
The length of the hamstring muscles is considered to play an important role in both the effectiveness and the efficiency of basic human movements, such as walking and running. In gait they stabilise the knee at initial contact by contracting isometrically at the same time as the vasti, and in terminal swing decelerate the shank by contracting eccentrically. The effects of a hamstring contracture vary and some patients have marked shortening on physical examination but less noticeable effects in gait. The purpose of this study was to estimate Flexibility and Balance, Gait by aging. 108 females(age:69.1±3.1) were categorized according to hamstring flexibility in the sit & reach test and assigned to one of two groups: high hamstring flexibility group: HF(>10cm) or low hamstring flexibility group: LF(<10cm) using sit & reach score. participants were measured in balance(One leg with eyes opened and timed up-and go), gait parameters. All data were analyzed by t - test and Pearson Correlation of SPSS. In the whole subjects group, sit & reach score was increased and related to One leg with eyes opened and timed up-and go(r=..37, .29, -.24) and significant correlation coefficients between sit & reach score and Stance Time, Double Supp. Time, Velocity, Step Length, Stride Length, Step Extremity(r= -.19, -.21, .24, .30, .26, .24). In the subgroup, HF were significantly higher both balance test (One leg with eyes opened and timed up-and go) in the LF(p<.001). HF were significantly higher gait parameters (Cadence, Stance Time, Double Supp. Time, Velocity, Step Length, Stride Length, Step Extremity) in the LF(p<.05, p<.01). In conclusion, to prevent a decrease in gait performance due to hamstring tightness, stretching exercise is recommended for elderly women with limited hamstring flexibility.
정제순(Jae Soon Chung),이한용(Han Yong Lee) 한국여성체육학회 2007 한국여성체육학회지 Vol.21 No.4
The purpose of this study was to estimate one-repetition maximum(1-RM) by isometric maximal strength in female adults. 50 female adults were performed isometric strength in seven weight training machines (leg extension; LE, leg curl; LC, chest press; CP, shoulder press; SP, abdominal curl; AC, arm curl; RC, latpull down; LD). Isometric muscular strength was determined tensiometer(model JNB-500L). After 48 hours later, 1-RM measurement were followed. The data analyzed correlation isometric muscular strength and 1-RM. also regression analysis used for development of regression equations to predict one repetition maximal strength. The result was shown that high correlation between isometric strength and 1-RM(r=.58~.80, p<.01), R2=.42~.67 had linear relation. Regression equations were LE(1-RM)=70.84+0.58×(MVC)+0.47×(Body Weight; BW), LC(1-RM)=26.89+ 0.35×(MVC), CP (1-RM)=0.59×(MVC)+0.45×(BW), SP(1-RM)=0.61×(MVC), AC(1-RM)=0.62×(MVC), RC(1-RM) =0.33×(MVC)+0.16×(BW), LD(1-RM)=0.33×(MVC)+0.49×(BW). In conclusion, the regression equations on this study may be predicted acceptable degree of accuracy to 1-RM of weight training machines and isometric test can provide a valid estimation of 1-RM performance in untrained female adults.