Findings from a recent 70 day bedrest investigation suggested intermittent exercise testing in the control group may have served as a partial countermeasure for skeletal muscle size, function, and fiber-type shifts. The purpose of the current study was to investigate the metabolic and skeletal muscle molecular responses to the testing protocols. Eight males (29±2y) completed muscle power (6x4...
The influence of nitrous oxide (N2O) narcosis on the response to exercise and inspiratory resistive loading was studied in thirteen male US Navy divers. Each diver performed an incremental bicycle exercise test at 1 ATA to volitional exhaustion while breathing a 23% N2O gas mixture and a nonnarcotic gas of the same PO2, density and viscosity. The same gas mixtures were used during four...
We studied the effect of transcendental meditation (TM) on breathing using 16 experienced meditators and 16 control subjects. In controls, there was no significant difference in minute ventilation (VE), respiratory pattern, or hypercapnic response, whether breathing with eyes open-awake (CA), or with eyes closed-relaxing (CR). In meditators, VE decreased significantly during quiet breathing...
Thirteen subjects were studied for 4 nights of sleep by simultaneous recording of EEG, eye-movement potentials, heart rate, and respiration. The subjects were awakened from stage 1 sleep periods with rapid, conjugate eye movements (REM periods) and asked to describe any preawakening experiences (dream or thoughts). Respiratory rate was more irregular during REM periods which led to dream...
Four judges observed the effect of d-lysergic acid diethylamide (LSD-25) upon nine behavior indices in Siamese fighting fish, Betta splendens. The effect upon seven of the measures could be reliably categorized. B. splendens appear to be useful organisms in the bioassay of LSD-25. Submitted on August 31, 1956