Reconsidering vulnerability in higher education     

Jackson  Liz 《Tertiary Education and Management》2018,24(3):232-241

Vulnerability appears to be increasing in the neoliberal and corporate authoritarian university, but few articles have explored vulnerability in depth in higher education. This paper provides a systematic understanding of vulnerability and considers its implications for academics. First, the author examines vulnerability as conceptualized within psychological and philosophical lenses. The author posits that vulnerability has positive potential and is not just a cause for concern. Next, the paper explores vulnerability in terms of relationality and afect in the context of diferent professional and social positions, and the rise of managerialism in diverse national and disciplinary environments. That vulnerability circulates through interrelations suggests that it is not a problem that can be ameliorated through giving academics more resources as individuals. Rather, vulnerability stems not from individual neediness or fragility, but from interactive operations and processes within communities. The essay concludes by considering the implications of reconceptualizing academic vulnerability alternatively as a positive learning disposition in higher education.

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An Analysis of the Validity of the Three-Mile Run as a Field Test of Aerobic Capacity in College Males     

Allen Jackson EdD    Roland Schick   《Research quarterly for exercise and sport》2013,84(3):233-237

Abstract

The purpose of the present investigation was to examine the concurrent and construct validity of the three-mile (4.83 km) run as afield test of aerobic capacity. Subjects included 109 college-aged males whose three-mile run time (M = 1310.31 ± 184.48 s) was measured. Fifty of the subjects were given a maximal treadmill stress test, and their peak oxygen consumption (VO₂peak) (M = 54.23 ± 7.08 ml.kg^?1.min^?1) was measured. The three-mile run was conducted on an outdoor 0.25 mile (0.425 km) track, and split tunes were recorded each 110 yds (100.32 m) for the first and last laps and total time was recorded for laps 2 through 11. The correlation coefficient between the run time and VO₂peak was -.58, indicating only moderate concurrent validity for the run as afield test for aerobic capacity. A factor analysis conducted on the split time data revealed a three-factor structure of a stable pace phase, an initial sprint, and a final sprint with the stable pace factor accounting for most of the common factor variance (69%). The three-mile run time was used to discriminate successfully between two known groups of subjects in aerobic capacity. These data provide a degree of support for the construct validity of the three-mile run as afield test of aerobic capacity.  相似文献   

Active Transportation to School     

James R. Morrow Jr.  Allen w. Jackson 《Research quarterly for exercise and sport》2013,84(3):352-355

Abstract

Cinematographical analysis was used to compare spatial and temporal relationships of ten skilled and ten non-skilled performances of the standing broad jump. Means of the extent and duration of major joint action for the two levels of skill were represented graphically. Characteristic likenesses appeared in the general patterns of movement of limbs and in proportion of time consumed by the phases of the movement. Characteristic differences were found in angles of take-off and of landing and in extent and duration of specific joint actions. Greater extent of movement occurred in the skilled performances. The latter characteristically used more time in hip flexion and less time in knee extension.  相似文献   

Age,Physical Activity,Physical Fitness,Body Composition,and Incidence of Orthopedic Problems     

C. A. Macera  Kirby L. Jackson  Gerald W. Hagenmaier  Jennie J. Kronenfeld  Harold W. Kohl  Steven N. Blair 《Research quarterly for exercise and sport》2013,84(3):225-233

Abstract

The incidence of orthopedic problems was examined in 5, 582 men and women who attended the Cooper Clinic in Dallas, Texas between 1974 and 1982. The effects of age, physical activity, physical fitness, and body mass index (EMI) on the occurrence of these problems were examined using a proportional hazards approach. The expected risk of orthopedic problems per person-year was 0.045 for men and 0.046 for women. For men, physical fitness, BMI, and physical activity were associated with orthopedic problems, while for women, physical activity was the main predictor. Age was not a factor for either gender. The effect of change in physical fitness, physical activity, and BMI was examined in a subset of 2, 325 persons with more than one visit to the clinic. For women, physical activity and a decrease in BMI were associated with orthopedic problems, while for men none of those factors were significant. Again, age was not a factor in either group. The absence of any age effect on the occurrence of problems suggests that with regard to orthopedic problems, moderate amounts of physical activity in generally healthy persons may be recommended without special consideration as to age.  相似文献   

Coping Strategies Used by National Champion Figure Skaters     

Daniel Gould  Laura M. Finch  Susan A. Jackson 《Research quarterly for exercise and sport》2013,84(4):453-468

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Effect of Hand Spacing and Rear Knee Angle on the Sprinter's Start     

Andrew S. Jackson  John M. Cooper 《Research quarterly for exercise and sport》2013,84(3):378-382

Abstract

Twelve male subjects with no specialized training in sprint running were used to study effects upon the sprinter's start when hand spacing and rear knee angle were systematically altered. Results indicated that hand spacing had an effect on the start during the first 10 yd. of the sprint. The effect of rear knee angle was present at 10 yd. and the advantage gained at 10 yd. was still present at 30 yd.  相似文献   

Sporting Heroes of the North     

Alexander Jackson 《国际体育史杂志》2013,30(6):947-949

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Development and validation of the Decision-Specific Reinvestment Scale     

Noel P. Kinrade  Robin C. Jackson  Kelly J. Ashford  Daniel T. Bishop 《Journal of sports sciences》2013,31(10):1127-1135

Abstract

Items from the Reinvestment Scale were modified to create a decision-specific version of the scale. Principal components analysis of responses from 165 participants revealed one-, two-, three-, and four-factor solutions for the Decision-Specific Reinvestment Scale. Confirmatory factor analysis of responses from a second sample of 111 participants revealed that a 13-item two-factor solution showed the best fit. The first factor comprised six items referring to conscious monitoring of the process involved in making a decision, and was termed decision reinvestment. The second factor, decision rumination, comprised seven items related to focus on negative evaluations of previous poor decisions. In an initial assessment of predictive validity, Decision-Specific Reinvestment Scale scores of 59 skilled team sport players were found to be highly correlated with coaches' ratings of players' tendency to choke under pressure (r = 0.74), with high Decision-Specific Reinvestment Scale scores indicating greater susceptibility to poor decision-making under pressure. It was concluded that the Decision-Specific Reinvestment Scale highlights a performer's predisposition to engage in behaviours detrimental to performance under pressure, namely decision reinvestment and decision rumination.  相似文献   

The Construct and Concurrent Validity of a 12-Minute Crawl Stroke Swim as a Field Test of Swimming Endurance     

Allen Jackson  Andrew S. Jackson  Ronald G. Frankiewicz 《Research quarterly for exercise and sport》2013,84(4):641-648

This study investigated the construct and concurrent validity of a 12-minute crawl stroke swim as a field test of swimming endurance. A sample of 42 male college students who ranged from certified life savers to competitive swimmers were administered three tests. The first, a multistage swimming endurance test, required that a tethered subject swim to exhaustion under a linear progressive increase in workload. The second measure was the crawl stroke count for two lengths of a 25-yard pool. The third test was a 12-minute crawl stroke swim for distance with total distance and distance covered each minute recorded for each subject. Alpha factor analysis of the 12 minute intervals of the crawl stroke swim produced one factor which demonstrated that swimming performance was internally consistent during the 12-minute swim. There was a correlation of .898 (p < .01) between the 12-minute swim and the tethered swim test. Cross validity procedures demonstrated a high degree of stability for the correlation between the 12-minute swim and the tethered swim and for resulting regression statistics. The construct validity was established for both the multistage test and the 12-minute swim using the known groups approach. On the basis of the data the 12-minute swim is a valid field test for swimming endurance for the population studied.  相似文献   

Baumgartner's Modified Pull-Up Test For Male and Female Elementary School Aged Children     

Allen Jackson  Larry Bruya  William Baun  Peggy Richardson  Robert Weinberg  Irma Caton 《Research quarterly for exercise and sport》2013,84(2):163-164

Abstract

Nineteen college men and women (aged 18–23 yrs, × = 21.1) were studied to ascertain the force-time components of a rapid maximal voluntary isometric contraction (MVC) for ankle dorsiflexors, knee extensors, elbow flexors, wrist flexors and hand grip. Standardized isometric strength testing protocol was used. After a practice period subjects were instructed to make an MVC without jerking and as quickly as possible, for each of the muscle actions noted above. Force readings were taken from a load cell assembly through an analogue-to-digital converter and analyzed to yield time values for MVC, 3/4 MVC, 1/2 MVC, and 1/4 MVC. The results indicated significant differences (p < .01) between the responses of the men and women, with the women reaching full MVC more rapidly than the men. Also, there were significant differences among the five muscle groups tested, with the wrist flexor muscle group developing MVC most quickly, while the knee extensors took the longest time to full MVC. Based upon these data it may be concluded that the time to full MVC differs between men and women, and also that the time to full MVC differs among the five muscle groups tested in this experiment.  相似文献