المؤلفون: Dawes, J. Jay, Lopes dos Santos, Marcel, Kornhauser, Charles, Holmes, Ryan J., Alvar, Brent A., Lockie, Robert G., Orr, Robin M.

المصدر: Journal of Strength & Conditioning Research; Apr2023, Vol. 37 Issue 4, p881-886, 6p

مصطلحات موضوعية: SHIFT systems, SLEEP quality, ENDURANCE sports training, JOB stress, PHYSICAL fitness, DIET, AGING, POLICE psychology

مستخلص: Dawes, JJ, Lopes dos Santos, M, Kornhauser, C, Holmes, RJ, Alvar, BA, Lockie, RG, and Orr, RM. Longitudinal changes in health and fitness measures among state patrol officers by sex. J Strength Cond Res 37(4): 881–886, 2023—Research suggests that police officers lose fitness as a result of their policing vocation with occupational factors like stress, shift work, poor sleep, and poor diet all contributors to this loss The purpose of this research was to measure changes in fitness test scores of qualified police officers over a 5-year period. Archived fitness data for 523 state patrol officers (n = 494 men; 29 women) from one agency were used for this analysis. These tests included 60-second sit-up [SU] and push-up [PU] scores (muscular endurance), vertical jump height [VJ] (lower-body power), and 20-m multistage fitness test (aerobic capacity). A series of paired-samples t-tests and effect size calculations were used to investigate mean differences in fitness tests score at the beginning and end of a 5-year period. The paired-samples t test showed significant tests score decreases among male officers over the 5-year period in VJ, PU, and V̇ o 2max,, with no differences observed in SU performance. Small effect sizes were observed in both VJ (g = −0.20) and PU (g = −0.27) with a trivial effect size observed in changes to V̇ o 2max (g = −0.14). In contrast, significant improvements in performance were observed in SU performance among female officers, with a small effect size (g = 0.38). No other significant differences were found in female measures. Whether at an organizational or individual level, annual fitness assessments for police officers can serve to educate and motivate officers regarding their personal fitness and potentially slow the negative impact of aging on health, fitness, and performance in these populations. [ABSTRACT FROM AUTHOR]

: Copyright of Journal of Strength & Conditioning Research is the property of Lippincott Williams & Wilkins and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Lopes dos Santos, Marcel, Mann, J. Bryan, Berton, Ricardo, Alvar, Brent A., Lockie, Robert G., Dawes, J. Jay

المصدر: Journal of Strength & Conditioning Research; Jan2023, Vol. 37 Issue 1, p220-223, 4p

مصطلحات موضوعية: HOCKEY, EXERCISE physiology, EXERCISE intensity, DESCRIPTIVE statistics, WEIGHT lifting

مستخلص: The aim of this study was to determine whether bar velocity can be used to estimate the 1 repetition maximum (1RM) on the hexagonal bar deadlift (HBD). Twenty-two National Collegiate Athletic Association Division I male ice hockey players (age = 21.0 ± 1.5 years, height = 182.9 ± 7.3 cm, and body mass = 86.2 ± 7.3 kg) completed a progressive loading test using the HBD at maximum intended velocity to determine their 1RM. The mean concentric velocity was measured for each load through a linear position transducer. The a priori alpha level of significance was set at p = 0.05. The mean concentric velocity showed a very strong relationship to %1RM (R² = 0.85). A nonsignificant difference and a trivial effect size (ES) were observed between the actual and predicted 1RM (p = 0.90, ES = -0.08). Near-perfect correlations were also discovered between the actual and predicted 1RM (R = 0.93) with low typical error and coefficient of variation (5.11 kg and 2.53%, respectively). This study presented results that add the HBD to the list of exercises with established load-velocity relationships. The predictive ability for 1RM HBD indicates that this is a viable means of prediction of 1RM. [ABSTRACT FROM AUTHOR]

: Copyright of Journal of Strength & Conditioning Research is the property of Lippincott Williams & Wilkins and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

لا يتم عرض هذه النتيجة على الضيوف.
تسجيل الدخول للوصول الكامل.

لا يتم عرض هذه النتيجة على الضيوف.
تسجيل الدخول للوصول الكامل.

لا يتم عرض هذه النتيجة على الضيوف.
تسجيل الدخول للوصول الكامل.