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Volume 58 (2009)
- Issue 6 Pages 589-
- Issue 5 Pages 489-
- Issue 4 Pages 421-
- Issue 3 Pages 331-
- Issue 2 Pages 209-
- Issue 1 Pages 1-
Volume 58, Issue 5
Displaying 1-8 of 8 articles from this issue
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TOME IKEZOE, YASUYOSHI ASAKAWA, HIROTO SHIMA, NORIAKI ICHIHASHI2009 Volume 58 Issue 5 Pages 489-498
Published: October 01, 2009
Released on J-STAGE: November 11, 2009
JOURNAL FREE ACCESSThis study examined the relationship between multiple physical function and falls among institutionalized elderly women, and screening methods designed to effectively identify elderly with a high risk of falling. The subjects comprised 44 elderly women aged 82±6 years residing in a nursing home. Multiple physical assessments were tested using the following measures; muscle strength(quadriceps strength and grip strength), balance test(functional reach and one-legged stance test), flexibility test(sit and reach test), agility test(stepping test), and physical performance test(TUG and chair stand test). Based on the experience of fall-related accidents within the past two years, we categorized the subjects into two groups (non-fall group and fall group). Of these measures, quadriceps strength, grip strength, functional reach, stepping test in a standing position, and chair stand test were significant factors discriminating whether the subject had a history of falls. Logistic regression analysis demonstrated that quadriceps strength, functional reach, stepping test in a standing position, and chair stand test were important predictors of falls in an institutionalized elderly population. The results of this study suggest that 0.84 Nm/kg for quadriceps strength, 26 cm for functional reach, 17 steps for stepping test, and 14 sec for chair stand test, were useful indicators for screening institutionalized elderly for risk of falling. Particularly, the stepping test was most effective in screening the elderly to assess their fall risk.View full abstractDownload PDF (395K) -
NANA INOUE, YUKIO URABE, YUKI YAMANAKA, IKUTOSHI ICHIKI, YUKI NODA2009 Volume 58 Issue 5 Pages 499-506
Published: October 01, 2009
Released on J-STAGE: November 11, 2009
JOURNAL FREE ACCESSPurpose: The aim of the present study was to make an ankle destabilization device and investigate the effect of exercise with this device on peroneal muscles.
Methods: Seventeen healthy subjects were instructed to undergo step movement exercise with the lower extremity 150 times on the spot using the ankle destabilization device. Before and after stepping, the reaction time and mean frequency of the peroneus longus and the peroneus brevis muscles were compared. While stepping with the device, muscular activity of the peroneus longus and the peroneus brevis was compared under both stable and instable conditions.
Result: The results showed that peroneal reaction time didn't change after stepping with the device; but the frequency of peroneal muscle activity increased after stepping. While stepping, muscular activity of the peroneal muscles increased in an instable condition.
Conclusion: The results suggested that stepping exercise with the device could be beneficial for peroneal muscles.View full abstractDownload PDF (172K) -
KAORI ISHII, SHIGERU INOUE, YUMIKO OHYA, YUKO ODAGIRI, TOMOKO TAKAMIYA ...2009 Volume 58 Issue 5 Pages 507-516
Published: October 01, 2009
Released on J-STAGE: November 11, 2009
JOURNAL FREE ACCESSBackground: Perceived benefits and barriers to exercise are important correlates of exercise participation. Purpose: To develop a short version of the perceived benefits and barriers to exercise scale and to examine its validity and reliability. Methods: A population-based cross-sectional study of 865 participants (age: 20-69 years old, men: 46.5%) was conducted in four cities in Japan (Koganei, Tshukuba, Shizuoka, Kagoshima). Perceived benefits and barriers scale including five benefit subscales (physical benefit, psychological benefit, social benefit, weight management, self-improvement) with 10 items, five barrier subscales (discomfort, lack of motivation, lack of time, lack of social support, poor physical environment) with 10 items and stage of change for exercise behavior were assessed by self-administered questionnaire. Results: Confirmatory factor analyses to examine the construct validity revealed acceptable fit indices (benefit scale: GFI=.980, AGFI=.951, RMSEA=.058, AIC=151.669, barrier scale: GFI=.973, AGFI=.949, RMSEA=.060, AIC=166.084). Seven of ten subscales indicated significant linear associations with stage of change for exercise behavior, criterion-related validity was revealed. The reliability of the scale was found to be good as internal consistency and inter-rater reliability. Conclusion: The short version of the perceived benefits and barriers scale developed in this study demonstrated acceptable construct validity, criterion-related validity, internal consistency and inter-rater reliability.View full abstractDownload PDF (298K) -
HISAFUMI KAWASAKI, HIROKAZU ITO, AKIRA MASEGAKI, DAISUKE ONO, KOJI WAT ...2009 Volume 58 Issue 5 Pages 517-526
Published: October 01, 2009
Released on J-STAGE: November 11, 2009
JOURNAL FREE ACCESSPURPOSE : The purpose of this study is to compare sagittal spinal alignment and mobility among standing and sitting (which are fundamental postures in daily activities), and four point kneeling (FPK: the imitation of quadrupedal animal posture).
METHODS : Fifty three healthy young men have participated in this study. Spinal alignment is measured using a non-invasive skin surface measurement device (Spinal Mouse®: Index Ltd, Japan). The spinal alignment is measured in 3 positions: upright, flexion, and extension, in each posture (standing, sitting, and FPK), and then the thoracic and lumbar curvature and sacral slope are analyzed.
RESULTS : Even between 2 fundamental positions, upright standing and sitting, the lumbar lordosis is statistically different (17.1±8.9° at upright standing, 3.5±10.0° at upright sitting, p<0.001). But the sacral slope is not different between those 2 positions. The lumbo-pelvic rhythm (lumbar-hip or lumbar-pelvis flexion ratio) is also different among the 3 postures, especially in FPK posture. In this posture the lumbar spine and pelvis (sacrum) move to opposite direction each other; this phenomenon is not observed at standing and sitting postures.
CONCLUSION : The spinal alignment and mobility are different in many segments among standing, sitting, and FPK.View full abstractDownload PDF (233K) -
ZHEN-BO CAO, NOBUYUKI MIYATAKE, MITSURU HIGUCHI, IZUMI TABATA2009 Volume 58 Issue 5 Pages 527-536
Published: October 01, 2009
Released on J-STAGE: November 11, 2009
JOURNAL FREE ACCESSThe purpose of the study was to develop new VO2max prediction models for Japanese men using a 3-minute walk test. One hundred and twenty-seven Japanese men aged from 20 to 69 years were recruited as subjects of the present study. Maximal oxygen uptake (VO2max) was measured with a maximal incremental test on a bicycle ergometer. The prediction models were derived using data of age, 3-minute walking distance (3MWD), and either BMI, waist circumference (WC), or %Fat. This data was cross-validated by using PRESS cross-validation procedures. 3MWD was significantly related to VO2max (r = 0.54, P<0.001). The multiple correlation coefficients for the BMI, WC, and %Fat models, respectively, were 0.81, 0.82, and 0.85. The standard error of estimate (SEE) was 4.5, 4.4, and 4.1 ml·kg-1·min-1, respectively, for the BMI, WC, and %Fat models. All regression models demonstrated a high level of cross-validity supported by the minor shrinkage of the coefficient of determination and increment of SEE in the PRESS procedure. This study demonstrated that 3MWD was useful for predicting VO2max accurately using VO2max prediction models for Japanese men. The new non-exercise prediction equations derived in this study are applicable to estimating VO2max in Japanese adult men.View full abstractDownload PDF (293K) -
ORIE YAMAGUCHI, YUKIO URABE, YUKI YAMANAKA, NATSUMI KAMIYA, SHIGEYUKI ...2009 Volume 58 Issue 5 Pages 537-544
Published: October 01, 2009
Released on J-STAGE: November 11, 2009
JOURNAL FREE ACCESSPurpose: To determine whether performing a feint in team handball with a wide foot stance leads to a greater knee valgus angle and/or knee valgus moment.
Methods: Eight women handball players performed a feint with 4 different foot stances (free and 30%, 40%, and 50% of their body height). Three-dimensional kinematics and ground reaction forces were measured during the feints. Hip abduction angle at first contact, peak vertical ground reaction force, peak knee valgus angle, and peak external knee valgus moment during the first 20% of the feint cycle were compared among the stances at 30%, 40%, and 50% of body height (ANOVA, P<0.05). In the free feint, we investigated intrasubject correlations among foot stance and hip abduction angle at first contact, peak knee valgus angle, and peak external knee valgus moment were then conducted (P<0.05).
Results: When performing a feint with foot stances at 40% and 50% of body height, the subjects had significantly greater peak external knee valgus moment. Hip abduction angle at first contact was significantly correlated to peak knee valgus angle and peak external knee valgus moment.
Conclusion: Training athletes to avoid wide foot stance and large hip abduction angle may reduce the risk of sustaining noncontact anterior cruciate ligament injuries.View full abstractDownload PDF (195K)
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2009 Volume 58 Issue 5 Pages 545-550
Published: October 01, 2009
Released on J-STAGE: November 11, 2009
JOURNAL FREE ACCESSDownload PDF (155K) -
2009 Volume 58 Issue 5 Pages 551-552
Published: October 01, 2009
Released on J-STAGE: November 11, 2009
JOURNAL FREE ACCESSDownload PDF (41K)
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