61歳から80歳までの男女に1000m歩行を含む体力テストを行い, その前後で血液成分の検査, 血圧, 心拍数の測定を行った。これらの被検者には心電図所見異常の者も含まれていた。得られた結果は次の通りであった。
1) 最大血圧・最小血1圧ともに著明な変化は認められなかった。
2) 心拍数は殆んどの被検者に増加が見られた。
3) 血清総コレステロール, GOT, GPTには変化が一見られなかった。
4) 脂肪酸特に不飽和脂肪酸が著しく増加した。
5) 歩行速度の速かった群は遅かった群よりも脂肪酸増加度の方が著しく大きかった。
6) 心電図に異常所見が見られた群は異常の見られなかった群よりも脂肪酸増加度が著しかった。

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環境温を一定 (26℃) にした3つの異なる湿度条件のもとで種々の強度の運動を負荷し, その際の代謝, 体熱量の変化, wetならびにdryの熱放散を算出し, 運動時の生体におよぼす湿度の影響を熱平衡の面から定量的な検討を加えた。得られた結果は次の通りである。
1.運動中の酸素摂取水準は湿度条件にかかわらず運動強度に応じてほぼ一定であった。
2.直腸温ならびに平均皮膚温は運動強度に応じて湿度変化の影響は異った。すなわち, 50%Vo₂max以下の運動強度では湿度変化の影響は殆んど認められないが, 60%Vo₂max以上の運動では高湿に伴って上昇し, 特に70%Vo₂maxの運動で著明であった。
3.総汗量 (分泌された汗量) は高湿に伴って増大し, 一方, 有効汗量 (蒸発した汗量) は高湿に伴って減少する傾向を示した。その傾向は, 特に60%, 70%Vo₂maxの運動において著明であった。

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In this study, it was attempted to clarify the neurophysiological mechanism of voluntary movement (phonation) recording evoked EMG (H-wave) which have been studied by Magladery and others basing on the Hoffman's study about monosynaptic reflex. The indicator was the amplitudes of H-wave which were evoked on M. soleus by stimulation on the afferent nerve fibers contained in N. tibialis. Variations of H-wave amplitudes were plotted in relation to the time elapsed from initiation of phonation and were investigated about the central nervous system in relation to it.
As the results of this study, following conclusions were led;
1) At the stage of pre-phonation period, average values of H-wave amplitude were higher than those of control. This result was understood as impulses which were commanded to contract the muscles for phonation raised alpha motoneurones in reflex arc of lower limbs, simultaneusly.
2) The damping phenomenon of H-wave amplitudes were observed just prior to pre-phonation. But the neurophysiological mechanism of it is unknown in detail, now.
3) The H-wave amplitudes showed the highest value in agreement with initiation of phonation. This phenomenon was called as Jendrassik's Maneuver. This effect was understood that Jendrassik's Maneuver had some functional connection to the reticular formation of brain stem.
4) After the initiation of phonation, the inhibitory phenomenon of H-wave amplitudes (this level was lower than that of control) was observed at most of subjects. The neurological mechanism of this phenomenon is unknown.

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Heart rate and R-R intervals of ECG during sleep were examined in healthy young men. Heart rate per minute were gradually decreased when the subject fell asleep. Whole through one night sleep data there were two typical heart rate variation patterns, namely stable stage and fluctuating stage. Sleep stages determined by EEG, EOG and EMG of chin corresponded with these two patterns; slow wave stage (Stage III/IV) showed the stable pattern, REM Stage and Stage I showed the fluctuating pattern, Stage II both patterns. The fluctuating pattern showed higher heart rate level.
Further studies computed R-R intervals and its variations of ECG revealed 4 typical patterns on the variations, and well corresponded with sleep patterns determined by the above methods. R-R interval varied from 1.39 to 0.67 sec during sleep. R-R interval variation befor onset of sleep showed lightly rythmical periodicity (20-40 sec) and small fluctuation (0.1 sec) (awaking pattern) . R-R intervals after onset of sleep extended gradually, fluctuating midly (0.1 sec) and did not show any periodicity (transient pattern) . R-R interval reached its maximum level then. At slow wave stage (S-III/IV) R-R interval showed mild fluctuation as the transient strage, and did not show any periodicity (stable pattern) . At REM stage and S-I it showed large fluctuation (more than 0.2 sec) and significant periodicity (10-30 sec) . At S-2 if the stage was in the course of deepening the sleep, it showed stable pattern and if it was in the course of lightening the sleep it showed fluctuating pattern.

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56才男子と20才女子の2名の被検者に栄養状態を異にする条件下で運動を負荷し, 静脈中の遊離脂肪酸濃度がどのように消長するかを実験した。
静脈血中のパルミトオレイン酸濃度が急増した時には不整脈が観察されたが, そうでない時には見られなかった。
運動負荷前にグルコースを投与することによって不整脈発生を阻止することができた。
また口常の食餌を低糖食とした時での空腹時にはパルミトオレイン酸の急上昇による不整脈を発生しやすい。

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