Clinico-pathological analysis referring hemeoxygenase-1 in acute fibrinous and organizing pneumonia patients

AbstractAcute fibrinous and organizing pneumonia (AFOP) is a very rare pathological entity of lung injury characterized by intra-alveolar fibrin balls.Hemeoxygenase (HO) -1 is a cytoprotective enzyme against oxidative stress and inflammation. It is known to be expressed in the alveolar macrophages in the healthy adults and overexpressed in other various lung cells of the lung injury patients.We experienced two cases of subacute form AFOP for these 10 years and reviewed clinico-pathological characteristics. The average age was 62 years old and both were male. The etiology of both cases was idiopathic. The average PaO2/FIO2 ratio was 274.5 ± 84.1. The average levels of C-reactive protein and surfactant protein - A of the serum were elevated to 19.8 ± 6.3 mg/dL and 67.6 ± 15.8 ng/mL, respectively. Serum sialylated carbohydrate antigen levels were normal in both cases. The characteristic radiographic findings were bilateral consolidations and ground glass opacities. Lung biopsy specimens revealed fibrin balls and alveolitis with abundant cellular HO-1 expression. Steroid response was excellent and the pulmonary involvements absolutely disappeared for about 3 months

垂直跳びにおける前伸張の速さ・強さが跳躍高におよぼす効果

The purpose of this study was to investigate the influence of the prestretching speed and strength of the thigh extensors during take-off phase on the jumping height in vertical jump. Five males performed the following several vertical jumps : squatting jump (SJ) from a static knee bending position ; counter movement jump (CMJ) with a preparatory counter-movement ; drop jump (DJ) from the five different heights (20, 40, 60, 80 and 100cm) on to the platform followed immediately by a vertical jump. All of these jumps were performed on the force-platform (Kistler) with the arms kept at the back. The jumping motions were recorded with the high-speed video tape recorder (NAC : HSV-200) from subject\u27s side at 200 f. p. s.. The results obtained from this study were summarized as follows : 1) The highest height of rise of center of gravity was obtained in CMJ. 2) When observing the result only in the DJs, the highest jumping performance was obtained in the DJ from a height of 40cm. 3) An average velocity of center of gravity during down phase in CMJ which showed the highest performance was 0.71m・sec^. 4) Prestretching force in CMJ was higher than that in SJ, but on the other hand it was lower than that in DJs. 5) Both angles of the knee and hip joints at the maximal knee bending position in CMJ which showed the highest performance were about 70 degrees

男女児のボール投げ動作とボール速度

本研究は, 幼稚園年長児 (5～6歳) 134名を対象に全力ボール投げ時の動作, ボール速度およびそれらの関係や性差を検討してきた。本研究で得られた結果は, 次のように要約できる。1) 投動作を12種類のパターンによって分類したところ, 成人型に近い動作を示したものの比率は女児よりも男児の方が高かった。また, 12種類のパターンの中で男児は出現しなかったパターンがあったが, 女児ではすべてのパターンがあらわれた。2) 男女それぞれの全体のボール速度は平均で10.4m/sで男児の方が高かった。また, 同一動作パターンにおけるボール速度も男児の方が高かった。3) 男児では最も発達度の高いパターンのボール速度が他のパターンより高い傾向を示した。また, 男女とも最も未発達のパターンのボール速度が最も低かった

膝関節伸展における動的筋力・速度・パワーの経時的変化

The purpose of this study was to observe the instantaneous changes of the dynamic force, velocity and power during the concentric contraction of the voluntary maximal knee extension. Five healthy male subjects (25-27yrs.) volunteered to participate in this study. For the purpose of this study, an apparatus of the after load method was designed to measure the acceleration of the knee extension. The loads used in this study were determined from the percerntages of the maximal isometric strength. The dynamic force, velocity and power were calculated from the acceleration curves. The results were as follows : 1 ) The dynamic force-time curves could be divided into three types ; the curve with one peak (31%), the curve with two peaks (59%) and the curve with three peaks (10%). 2 ) The velocity-time curves could be divided into two types ; the curve in which the velocity showed continuous rise till the end of the knee extension (30%), and the curve which showed a peak just before the end of the knee extension (70%). 3 ) The power-time curve showed a peak between the peaks of the dynamic force and velocity. 4 ) The time latency to the peaks of the dynamic force, velocity and power was observed, and the time latency extended with increasing the load. It was concluded that the peak of force was observed firstly, then the peak of power was shown, and lastly the peak of velocity was obtained with using the loads ranged from 0% to 60% of MIS, and each time latency was extended with increasing the load

100m疾走の後半における走スピード, ピッチおよびストライドの変化

本研究では, 成人男子7名を被験者にして, 100m疾走中の後半における走スピード, ピッチ数およびストライド長の変化を明らかにした。本研究で得られた結果は, 次のように要約できる。1) 100m疾走後半の50mから100mまで, 走スピードは減少し続けた。2) 100m疾走後半の50mから100mまで, ピッチ数は減少し続けた。3) 100m疾走後半の50mから90mまでストライド長はほぼ一定を保ったが, 90mから100mまでの区間ではストライド長は急激に増加した。The purpose of this study was to measure running speed, stride length and step frequecny in the latter half of 100m sprint running. The subjects used in this study were four collegiate jumpers, 2 graduate students and an assistant of Chukyo University. All were healthy males. Each run was filmed at 50 frames/sec with Photosonics and Bolex 16mm cameras. Stride length and step frequency was measured from film analysis. Resultes obtanied from this study were summarized as follows. 1. Running speed and step frquency were gradually decreased in the latter half 50m of 100m sprint running. 2. Stride length was almost constant from 50m to 90m. After that, however, it was significantly decreased