Personality traits and performance of military parachutist trainees.
ABSTRACT Fifty-two Indian military parachutist trainees were studied throughout the training period to investigate effects of stress in parachutist training on performance efficiency. Stress attributable to fear, anxiety, and apprehension about the inherent risk of paratrooping was studied along with physiological and biochemical changes. An attempt is made to correlate personality traits with performance efficiency. In cognitive and psychomotor tests, maximum deterioration was seen before the tower jump and aircraft jump. The deterioration was correlated with the level of anxiety and urinary catecholamine levels. Inter-correlations between anxiety, catecholamine, and blood pressure were positive, and the level of anxiety was seen to be affecting the quality of performance adversely.
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ABSTRACT: Parajumping and sky diving in Armed Forces are used for rapid and strategic troop’s deployments. In the combat free fall (CFF), the troops are paradropped from high altitudes in excess of 30,000 ft above mean sea level (AMSL) when they glide to a great distance, often within the enemy lines. Physiology of parajumping necessitates supplemental oxygen above 15,000 ft AMSL. Possibility of serious hypoxia and decompression sickness mandate the usage of supplemental oxygen through dedicated equipment. Other considerations such as effects of hypoxia on tissue oxygenation, physical and mental performance, neuronal functions, night vision, and prevailing anxiety factors, etc. also assume significance. Factors like intermittent hypoxic exposures, free fall, effects of posture during fall, and possible microgravity become mitigating factors. Owing to limited oxygen supply being carried by the paratroopers, using dilution method in providing the breathing gas too assumes importance at times as a trade-off between requirements and supply. This paper reviews the literatures to extent possible and recommends certain concepts for an optimal oxygen usage during the high altitude parajumps.Defence science journal 02/2012; 62(vol 62, no 1,):51-57. · 0.31 Impact Factor
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ABSTRACT: The predictive validity of 7 ability tests, the Big Five, and the Rorschach method administered to 71 male applicants at the Naval Special Forces (NSF) of Norway was evaluated based on pass/fail results in training. The findings showed: (a) small correlations between the ability tests, the Big Five scales, and the success criterion; (b) Rorschach variables measuring stress tolerance, reality testing, cognition, and social adjustment correlated significantly (r =.25 to.48) with pass/fail results in training, and (c) logistic regression analysis revealed that 3 of the Rorschach variables accumulated incrementally in the prediction of training completion when entered after the ability tests and the Big Five scales, thus supporting the merit of using Rorschach variables for predicting NSF training performanceJournal of Personality Assessment 03/2003; 80(1):87-98. DOI:10.1207/S15327752JPA8001_17 · 2.01 Impact Factor
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ABSTRACT: Complaints of health symptoms from ambient odors have become more frequent in communities with confined animal facilities, wastewater treatment plants, and biosolids recycling operations. The most frequently reported health complaints include eye, nose, and throat irritation, headache, nausea, diarrhea, hoarseness, sore throat, cough, chest tightness, nasal congestion, palpitations, shortness of breath, stress, drowsiness, and alterations in mood. Typically, these symptoms occur at the time of exposure and remit after a short period of time. However, for sensitive individuals such as asthmatic patients, exposure to odors may induce health symptoms that persist for longer periods of time as well as aggravate existing medical conditions. A workshop was held at Duke University on April 16-17, 1998 cosponsored by Duke University, the Environmental Protection Agency (EPA). and National Institute on Deafness and Other Communication Disorders (NIDCD) to assess the current state of knowledge regarding the health effects of ambient odors. This report summarizes the conclusions from the Workshop regarding the potential mechanisms responsible for health symptoms from ambient odors. Methods for validation of health symptoms, presence of odor, and efficacy of odor management techniques are described as well.Journal of Agromedicine 01/2004; 9(2):397-403. DOI:10.1300/J096v07n01_02 · 0.92 Impact Factor