巻号一覧
56 巻, 5 号
選択された号の論文の11件中1～11を表示しています
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原著
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GASTON ARIEL NISHIWAKI, KOSUKE TANAKA, YUKIO URABE2007 年 56 巻 5 号 p. 451-460
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーLoss of proprioceptive feedback in knees with anterior cruciate ligament (ACL) deficiency is well documented. Joint mechanoreceptors are present in the ACL and in surrounding structures. The muscle spindle receptors may assist patients to compensate for the lack of proprioceptive sensibility after ACL injury. Therefore, exercises for the surrounding knee muscles during treatment after ACL reconstruction might improve proprioceptive performance and functional ability. The purpose of this study was to investigate whether muscle strength after ACL reconstruction can influence proprioceptive function. Sixteen patients who underwent ACL reconstruction were evaluated before surgery, then six and twelve months after surgery. Knee proprioception was evaluated using a robotic proprioceptive device, and muscle strength was evaluated using an isokinetic Biodex system.
Six months after surgery there was no correlation between the proprioceptive sensitivity (position sense) and the hamstring/quadriceps H/Q ratio, but there was a correlation at twelve months (r=0.66, P<0.05). There was no correlation between motion sense and the H/Q ratio. These results indicate that recovery of muscle strength after ACL reconstruction may contribute to proprioceptive sensibility.抄録全体を表示PDF形式でダウンロード (357K) -
山田 陽介, 木村 みさか, 中村 榮太郎, 増尾 善久, 小田 伸午2007 年 56 巻 5 号 p. 461-472
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーAlthough skeletal muscle mass decreases with aging, its decrease rate may differ among parts of the body. There have been few studies examining the differences in the muscle mass decrease rate between proximal and distal parts of the limbs or between the left and right legs in a large population. Bioelectrical impedance (BI) index, calculated as the ratio of the square of segment length to impedance, is linearly correlated with the muscle mass calculated by MRI (r=0.902-0.976, p<0.05, Miyatani et al., 2001) in the limb segments. The purpose of this study was to examine differences in the decrease rate of muscle mass between the proximal and distal parts of the limbs and between the upper and lower limbs in healthy Japanese. The BI index was measured in the bilateral thighs, lower legs, upper arms, and forearms of 1006 healthy Japanese men and women (aged 15-97 years). While the BI index decreased with aging in all examined parts of the body, the decrease rate was larger in the lower limb than in the upper limb, and in the thigh than in the lower leg. The percentage of people who showed a difference of more than 10 % in the BI index between the left and right lower limbs was significantly higher in the elderly than in young subjects. These differences in the decrease rate of muscle mass between limbs may be associated with decreases in physical functions in the elderly.抄録全体を表示PDF形式でダウンロード (280K) -
山田 崇史, 三島 隆章, 坂本 誠, 杉山 美奈子, 松永 智, 和田 正信2007 年 56 巻 5 号 p. 473-480
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーWe tested the hypothesis that a force reduction in soleus muscles from hyperthyroid rats would be associated with oxidative modification of myofibrillar proteins. Daily injection of thyroid hormone [3, 5, 3’-triiodo-L-thyronine (T3)] for 21 days depressed isometric forces in whole soleus muscle across a range of stimulus frequencies (1, 10, 20, 40, 75 and 100 Hz) (P<0.05). In fiber bundles, hyperthyroidism also led to pronounced reductions (P<0.05) in both K+- and 4-chloro-m-cresol-induced contracture forces. The degrees of the reductions were similar between these two contractures. These reductions in force production were accompanied by a remarkable increment (103% ; P<0.05) in carbonyl groups comprised in myofibrillar proteins. In additional experiments, we have also tested the efficacy of carvedilol, a non-selective β1-β2-blocker that possesses anti-oxidative properties. Treatment with carvedilol prevented T3-induced oxidation of myofibrillar proteins. However, carvedilol did not improve the hyperthyroid-induced reductions in force production. These data suggest that oxidative modification of myofibrillar proteins may not account for the reductions in force production of hyperthyroid rat soleus muscle.抄録全体を表示PDF形式でダウンロード (296K) -
飯田 智行, 宮川 健, 枝松 千尋, 小野寺 昇2007 年 56 巻 5 号 p. 481-488
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーThe purpose of this study is to show clearly whether the complexity of the cycle of head fluctuation during walking is influenced with walking speed. Thirty young healthy males and females volunteered as subjects for this study. Subjects walked 40 m, and they were instructed to walk “slowly”, “a little slowly”, “usual speed”, “a little fast” and “fast” depending on their subjectivities. The head fluctuation of the right-and-left direction during a walk was measured by using an accelerometer. In addition, the complexity of the head fluctuation of the right-and-left direction cycle was calculated by utilizing Approximate Entropy (ApEn). After the value of ApEn was standardized at the walking speed, each walking speeds were compared. As a result, the value of ApEn increased at the slowly speed, and decreased with the increases in the walking speed. And the value of ApEn showed plateau or decrease at a little faster than free walking speed. From our results, it thought a possibility that Central Pattern Generator is optimized at the free walking speed. In conclusion, it is clear that walking speed have influenced on the complexity of the walking cycle.抄録全体を表示PDF形式でダウンロード (216K) -
田中 千晶, 田中 茂穂, 河原 純子, 緑川 泰史2007 年 56 巻 5 号 p. 489-500
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーThe accuracy of a uniaxial accelerometer for assessing physical activity in preschool-aged children was assessed by using an indirect calorimeter which provides the physical activity ratio (PAR) for free living activities. Subjects were 5- to 6-yr-old Japanese girls and boys (n=24, 6.1±0.3 years). PAR was assessed for nine activities (lying down, watching a video while sitting and standing, line drawing for coloring-in, playing with blocks, walking, stair climbing, ball toss, and running) using the Douglas bag method. “Exercise intensities” were recorded with the uniaxial accelerometer (Lifecorder EX ; Suzuken Co. Ltd, Nagoya, Japan). PARs were also predicted by using the equations presented by Higuchi et al. (2003) and Kumahara et al. (2004). Significant correlation was observed between “exercise intensities” as measured by the uniaxial accelerometer and PAR for all activities (r=0.827). Predicted PAR values for walking and running were overestimated according to the equations. On the other hand, PAR values for stair climbing and ball toss were underestimated. These findings indicate that although the uniaxial accelerometer may help in evaluating daily physical activity in preschool-aged children, its use as a proxy measure of PAR based on the above equations may be limited.抄録全体を表示PDF形式でダウンロード (270K) -
野呂 美文, 内藤 健二, 鳥居 俊, 岡 浩一朗, 中村 好男2007 年 56 巻 5 号 p. 501-508
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーObjective : The present study examined the effects of the self-management print media intervention on improving quality of life.
Methods : The study was designed as an intervention study. We conducted questionnaire research on women (JKOM, Japanese style CSQ) over 40 years old who had knee pain. After program relevance determination, self-management print media intervention and an exercise intervention were implemented. The participants were 63 women (self-management print media intervention), and 80 women (exercise intervention). We examined valiances of pain intensity and activity limitation and pain coping strategies on each intervention using Wilcoxon signed-ranks test.
Results : Pain intensity and activity limitation improved in both interventions. On the other hand, pain coping strategies differed. In the self-management print media intervention, the scores of diverting attention, praying or hoping, increasing activity level and increasing pain behavior significantly decreased. For the exercise intervention, a significant decrease was seen in coping, self-statements, catastrophizing, increasing activity level, and increasing pain behavior.
Conclusion : The results indicated that the self-management print media intervention had greater effect than the exercise intervention for women with knee pain. As one health assistance measure, this self-management print media intervention should become widely used.抄録全体を表示PDF形式でダウンロード (214K) -
深野 真子, 福林 徹, 鈴木 秀次2007 年 56 巻 5 号 p. 509-518
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーDespite their wide clinical application and success, our understanding of the effects of insoles is relatively limited. The purpose of this study was to assess the biomechanical effects of wearing lateral/medial wedged insoles on subtalar and knee joints during normal walking. Motion analysis was conducted with a 3D motion-analysis system and a ground reaction force analysis using force plate when subjects walked with three different insole conditions : 5-degree medial wedge, no wedge, and 5-degree lateral wedge. Significant differences were found in subtalar or ankle joint motion in coronal and sagittal planes compared with the no-wedge condition. No differences were found in knee joint motion in the coronal and axial planes. The lateral-wedge insole reduced the knee varus moment and increased subtalar pronation moment in mid-stance during walking. At footstrike, however, the lateral wedge increased the knee varus moment and reduced the subtalar supination moment. The medial-wedge insole increased the knee varus moment and decreased subtalar pronation moment during the mid-stance phase. However, the medial wedge reduced the knee varus moment and increased subtalar supination moment at footstrike. The results of this study indicate that the influence of the insoles varied during the stance phase. Therefore, it is requested to select the shape of insole based on the injury mechanism, the location of the pain and the injury prevention.抄録全体を表示PDF形式でダウンロード (261K)
記事
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2007 年 56 巻 5 号 p. 519-523
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーPDF形式でダウンロード (104K) -
2007 年 56 巻 5 号 p. 524-532
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーPDF形式でダウンロード (171K) -
2007 年 56 巻 5 号 p. 533-538
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーPDF形式でダウンロード (128K) -
2007 年 56 巻 5 号 p. 539-546
発行日: 2007/10/01
公開日: 2007/11/22
ジャーナル フリーPDF形式でダウンロード (162K)
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