Thomas J. Williams

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Military 'Special Forces' represent a high-reliability occupation, where stress levels are often intense and failure can be costly. Selection for such jobs should pay careful attention to psychological factors associated with resiliency under stress. In the present study, US Army Special Forces candidates (N ¼ 1138) were assessed for psychological hardiness(More)
BACKGROUND Understanding factors associated with alcohol-related consequences is an important area of research. Emotional functioning has been associated with alcohol-related consequences but there is less research examining a comprehensive underlying model of emotional regulation. The Difficulties in Emotion Regulation Scale (DERS) is a recent measure(More)
The purpose of this study was to synthesize work directed at describing and understanding changes in running economy (the steady-state demand for oxygen at a set running speed) that occur with increased age during childhood and adolescence. Although the data are limited, a number of tentative conclusions were drawn. Children are less economical than adults.(More)
The purpose of this study was to quantify total within-subject variation in running economy (RE) in moderately trained male runners (N = 10). Subjects (ages 20-34 yr) were monitored during treadmill running, five times a week (Mon-Fri) for 4 wk, at 2.68, 3.13, and 3.58 m.s-1. Oxygen consumption (VO2) was determined via the open-circuit method during each of(More)
has been approved by the Examining Committee for the thesis requirement for the Master of Arts degree in Geography at the May 2014 graduation. ii " Far away in Montana, hidden from view by clustering mountain-peaks, lies an unmapped northwestern corner-the Crown of the Continent. The water from the crusted snowdrift which caps the peak of a lofty mountain(More)
The purpose of this study was to determine the relationship between psychological states as measured by the Profile of Mood States (POMS) inventory and within-subject variation in running economy (RE) in moderately trained male runners (N = 10). Subjects (ages 20-34 yr) were monitored during treadmill running, five times a week (Monday through Friday) for 4(More)
Previous research has linked emotional instability with problematic alcohol use. This may be a function of increased "hot" information processing (which is relatively automatic in nature and highly influenced by emotional states) for individuals with more emotional instability. According to dual-process models, cognitive control may attenuate the impact of(More)
The purpose of this study was to quantify daily variability in ventilation (VE) during submaximal exercise and establish the number of testing sessions required to produce stable exercise ventilation measures. Following 60 min of treadmill accommodation, four male (M) and four female (F) distance runners completed 5 weeks of daily treadmill testing at the(More)
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