Stride Control - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Stride Control write by Jen Marsden Hamilton. This book was released on 2020-11-15. Stride Control available in PDF, EPUB and Kindle. The only book dedicated to learning to find and ride the ideal jumping distance with fundamental skills and enlightening lessons from one of the best in the business. Understanding how to count strides helps to develop the rider’s eye and “feel.” Stride control means producing the correct number of strides and quality of stride to jump the jumps at hand—the emphasis is on the quality of strides, not just the number. It is one of the skills that enables the rider to achieve success, whatever the size of the jumps. Jen Marsden Hamilton has coached countless riders and horses around the world in the striding techniques that brought her success during her own impressive competitive career, and here Hamilton has compiled her knowledge in a concise book of exercises and insightful strategies. Inside you’ll find: Detailed setup for specific exercises. Connecting flatwork for between ground poles or jumps, such as transitions and serpentines. Strategies for completing the exercises and analyzing the outcome. Appropriate exercises for the rider’s desired discipline and level.
Stride Control
Stride Control - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Stride Control write by Jen Marsden Hamilton. This book was released on 2020-04-14. Stride Control available in PDF, EPUB and Kindle. This fun, approachable guide will help all riders train with correctness and form good habits at home so they can be stars at their next jumping or eventing competition.
Adaptability of Stride-to-stride Control of Stepping Movements in Human Walking and Running
Adaptability of Stride-to-stride Control of Stepping Movements in Human Walking and Running - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Adaptability of Stride-to-stride Control of Stepping Movements in Human Walking and Running write by Nicole Kristen Bohnsack. This book was released on 2014. Adaptability of Stride-to-stride Control of Stepping Movements in Human Walking and Running available in PDF, EPUB and Kindle. Walking and running are essential tasks people take for granted every day. However, these are highly complex tasks that require significant neural control. This is complicated by the inherent redundancy of the nervous system and by physiological noise. Humans may adopt different control strategies to achieve different goals (environmental or task specific). More specifically, walking/running on a treadmill only requires that one not walk off the treadmill. Of the many possible strategies that can achieve this goal, humans attempt to maintain a constant speed from each stride to the next (Dingwell, John et al. 2010). However, how humans alter the stride-to-stride regulation of their gait when the task goals change (e.g., by maintaining stride length and/or time, during running, or during a predicted walk to run transition speed) has not yet been demonstrated. In the first two of three experiments conducted, healthy adults either walked or ran on a motorized treadmill at a comfortable speed under the following conditions: constant speed, constant speed with the stride length goal (targets on the treadmill), constant speed with the stride time goal (metronome), or constant speed with both stride length and stride time goals. In a third experiment, subjects walked and/or ran at a comfortable speed and also at their predicted theoretical walk to run transition speed. Goal functions derived from the task specifications yielded new variables that defined fluctuations either directly relevant to, or irrelevant to, achieving each goal. The magnitude of the variability, as well as the stride-to-stride temporal fluctuations in these variables, were calculated. During walking, subjects exploited different redundancy relationships in different ways to prioritize certain task goals (maintain stride speed) over others (maintain stride length or stride time) in each different context. In general, subjects made rapid corrections of those stride-to-stride deviations that were most directly relevant to the different task goals adopted in each walking condition. Thus, the central nervous system readily adapts to achieve multiple goals simultaneously. During running, subjects exhibited similar adaptations to walking, but over-corrected to prioritize maintaining stride speed even more strongly. This suggests that stepping control strategies adapt to the level of perceived risk. This purposeful adaptability of these stride-to-stride control strategies could be exploited to developing more effective rehabilitation interventions for patients with locomotor impairments. During the predicted walk-to-run speeds, subjects were able to largely exploit the redundancy within task goal, and effectively operated at "uncomfortable" speeds. These results suggest that the stride speed control is robust even with additional novel tasks and uncomfortable, abnormal speeds of locomotion.
Biomechanics and Neural Control of Posture and Movement
Biomechanics and Neural Control of Posture and Movement - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Biomechanics and Neural Control of Posture and Movement write by Jack M. Winters. This book was released on 2012-12-06. Biomechanics and Neural Control of Posture and Movement available in PDF, EPUB and Kindle. Most routine motor tasks are complex, involving load transmission through out the body, intricate balance, and eye-head-shoulder-hand-torso-leg coor dination. The quest toward understanding how we perform such tasks with skill and grace, often in the presence of unpredictable perturbations, has a long history. This book arose from the Ninth Engineering Foundation Con ference on Biomechanics and Neural Control of Movement, held in Deer Creek, Ohio, in June 1996. This unique conference, which has met every 2 to 4 years since the late 1960s, is well known for its informal format that promotes high-level, up-to-date discussions on the key issues in the field. The intent is to capture the high quality ofthe knowledge and discourse that is an integral part of this conference series. The book is organized into ten sections. Section I provides a brief intro duction to the terminology and conceptual foundations of the field of move ment science; it is intended primarily for students. All but two of the re maining nine sections share a common format: (l) a designated section editor; (2) an introductory didactic chapter, solicited from recognized lead ers; and (3) three to six state-of-the-art perspective chapters. Some per spective chapters are followed by commentaries by selected experts that provide balance and insight. Section VI is the largest section, and it con sists of nine perspective chapters without commentaries.
Stride-level Control of Quadrupedal Runners Through Optimal Scaling of Hip-force Profiles
Stride-level Control of Quadrupedal Runners Through Optimal Scaling of Hip-force Profiles - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Stride-level Control of Quadrupedal Runners Through Optimal Scaling of Hip-force Profiles write by Andrés Klee Valenzuela. This book was released on 2011. Stride-level Control of Quadrupedal Runners Through Optimal Scaling of Hip-force Profiles available in PDF, EPUB and Kindle. This thesis presents Optimally Scaled Hip-Force Planning (OSHP), a novel approach to controlling the body dynamics of running robots. Controllers based on this approach form the high-level component of a hierarchical control scheme in which they direct lower level controllers, each responsible for coordinating the motion of a single leg. An OSHP controller takes in the state of the runner at the apex of its primary aerial phase and returns desired profiles for the vertical and horizontal forces to be exerted at each hip during the subsequent stride. Controlling the legs so as to match these profiles is left to the lower level leg controllers. The hip force profiles returned by OSHP are scaled variants of nominal force profiles based on biological ground reaction force data. The OSHP controller determines the scaling parameters for these profiles through constrained nonlinear optimization on an approximate model of the runner's body dynamics. Additionally this thesis presents an implementation of an OSHP controller for a simple quadruped model. Evaluation of the controller in simulation shows that even with very simple leg controllers, the OSHP controller can produce bounding and pronking gaits in that model. These gaits emerge as the controller attempts to match particular targets for the runners' states at the apex of their strides. The order in which the feet make contact with ground is not pre-specified. That evaluation also shows that the OSHP controller can compensate for errors introduced by the leg controllers to match given target values for the runners' height, pitch, and pitch rate at the apex of their strides.
