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Edited by David H. Perrin

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David H. Perrin

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David H. Perrin

In this essay, I reflect on my life and academic career, detailing my childhood, family background, education, and those who influenced me to study physical education and athletic training. My higher education started with a small college experience that had a transformative impact on my intellectual curiosity, leading to graduate degrees and, ultimately, a career in higher education. I chronicle my academic career trajectory as a non-tenure-track faculty member and clinician, tenured faculty member, department chair, dean, and provost. My personal and professional lives have been undergirded by a commitment to equity, diversity, and inclusion, with examples provided in this essay.

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David H. Perrin

This paper reviews the concepts associated with isokinetic open chain assessment and exercise of the quadriceps and hamstring muscle groups. Following a review of the isokinetic concept of exercise, the paper addresses principles of assessment and exercise of the knee, including the importance of musculoskeletal and cardiovascular screening, warm-up, body position, stabilization, and joint alignment. Gravity correction, test and exercise velocity, and duration of exercise are also addressed. Interpretation of an isokinetic evaluation of the knee is also addressed within the context of force-velocity relationships, peak torque relative to body weight, and bilateral and reciprocal muscle group relationships. Joint range of motion and test velocity are also discussed with respect to patellofemoral and tibiofemoral joint forces. Finally, recommended protocols for isokinetic assessment and exercise of the quadriceps and hamstring muscle groups are presented.

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David H. Perrin

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David H. Perrin

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David H. Perrin

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David H. Perrin

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David H. Perrin

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Barton P. Buxton and David H. Perrin

The purpose of this investigation was to determine the relationship between personality characteristics, as measured by the Myers-Briggs Type Indicator (MBTI) (form G), and an acute pain response in 107 postadolescent men. Subjects included 107 military school cadets. Each subject performed a cold pressor test (CPT) and was evaluated for pain threshold and pain tolerance times. Each was then evaluated for preference on eight personality characteristics: extraversion, introversion, sensing, intuition, thinking, feeling, judging, and perception. The personality characteristics were measured by the MBT1 (form G). Pearson product-moment correlations between the pain threshold and tolerance times and the eight personality characteristic scores were nonsignificant. The results indicated there was no relationship between the eight personality characteristics, as measured by the MBTI (form G), and pain threshold or pain tolerance, as measured by the CPT, The findings also indicated a low correlation between pain threshold and pain tolerance (r=.25).