著者

James P. Fisher Mark Asanovich Ralph Cornwell James Steele

出版者

Active Aging Research Center

雑誌

Journal of Trainology (ISSN:21865264)

巻号頁・発行日

vol.5, no.1, pp.13-17, 2016-04-18 (Released:2016-05-20)

参考文献数

20

被引用文献数

3

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Objectives: Sport plays a major role in the physical activity, wellbeing and socialisation of children and adults. However, a growing prevalence of concussions in sports persists, furthermore, that subconcussive forces are responsible for neurodegenerative conditions. Current approaches towards concussion prevention are dependent upon coaching strategies and enforcement by referees, or only attempt to reduce further injury, not prevent initial injury occurring. A growing body of research has shown that strengthening the muscles of the neck might serve to reduce head acceleration, change in velocity and dissipate kinetic energy from concussive and subconcussive forces. Design: Following ethical approval and parental consent a single arm, pilot study recruited 13 male and 13 female high school stu dents to undertake 8 weeks of neck strengthening exercises 2 d.wk-1. Method: A low-volume, time-efficient approach considered progressive strength training for neck extension, flexion, and right- and left-lateral flexion exercises for a single set to muscular failure. Results: Strength outcome data was analysed using paired samples t-tests comparing predicted 1-repetition maximum for week 1 and week 8 revealing significant strength improvements for both males and females for all exercises; p < 0.001. Effect sizes were very large (2.3-4.3) for all exercises for both males and females. Conclusions: Participants showed very large increases in neck strength suggesting previous detrained condition and the potential to significantly improve strength using a simple, low volume, resistance training protocol. Athletic training should prioritise health of participants and longevity of career and as such the authors present a neck strengthening protocol with a view to reducing injury risks.

著者

James P. Fisher James Steele Patroklos Androulakis-Korakakis Dave Smith Paulo Gentil Jürgen Giessing

出版者

Active Aging Research Center

雑誌

Journal of Trainology (ISSN:21865264)

巻号頁・発行日

vol.9, no.1, pp.1-8, 2020-01-18 (Released:2020-03-19)

参考文献数

37

被引用文献数

5 14

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Objectives: The accepted wisdom within resistance training is that differing loads and corresponding repetition maximum (RM) ranges are optimal for inducing specific adaptations. For example, prominent organizations and their respective publications have typically prescribed heavy loads for maximal strength increases ( ≥ 85% 1RM/ ≤ 6RM), more moderate loads for hypertrophy (67-85% 1RM/6-12RM) and lighter loads for local muscular endurance (LME; ≤ 67% 1RM/ ≥ 12RM). Since we believe these recommendations originate from a misunderstanding and misinterpretation of DeLorme’s strength-endurance continuum, the aim of this narrative review is to discuss the preponderance of research surrounding training load and strength and LME adaptations. Design & Methods: Narrative Review Results: The current body of literature fails to support recommendations for the use of specific loads for specific strength, hypertrophy or LME adaptations. Furthermore, that the strength-endurance continuum originally presented by DeLorme was never intended to compare the use of heavier- and lighter-load resistance training, but rather to consider the adaptations to strength training and aerobically based endurance exercise. Finally, a lack of clarity considering absolute- and relative- LME has confounded understanding of this adaptation. Conclusions: The body of research supports that absolute LME appears to adapt as a result of maximal strength increases. However, relative LME shows minimal response to strength training with either heavier- or lighter-loads. We present the limitations of the current body of research and promote specifically detailed recent research as well as the importance of generality of strength and LME in both sporting and real-world settings.