Stair climbing

About: Stair climbing is a research topic. Over the lifetime, 1610 publications have been published within this topic receiving 30504 citations.

Function, Functional Training: Muscle Structure, and ~erhrmance in Older Women

Abstract: S pecificity of training is a well-recognized principle of exercise physiology. Muscles adapt to the specific training stimulus imposed upon them: swimmers train by swimming, weight lifters train by lifting weights, football players train by running and throwing. These strategies have proven effective for athletes; however, they have not been applied to exercise regimes aimed at improving daily activities in older adults. Traditional exercise programs use endurance training, single joint strength training, or a combination of the two, but often they do not produce an improvement in functional measures (3). This traditional a p proach to exercise is prescribed for the general public with the intention of improving activities of daily living, yet they do not incorporate these activities into the training. Although resistance training using machines strengthens each muscle in isolation, these programs do not incorporate integrated performance into the training regime. Functional performance requires the integration of multiple joints and several muscle groups. In an activity such as stair climbing, the integrated strength of the quadriceps, hamstrings, hip flexors and extensors, and plantar flexors is involved. Merely strengthening each muscle in isolation does not train the muscles to work in a coordiResponse to physical training at the cellular and whole muscle level has been established in older adults. However, the underlying molecular mechanism responsible for change has not been described nor have the relationships behveen change in muscle structure and functional performance been established. The purpose of this research study is to evaluate the changes of muscle ultrastructure, muscle strength, and whole body functional performance as a result of a functionally directed exercise program (stair climbing). Women (65-83 years old) selected either the control (no exercise; N = 6) or exercise (N = 7) group. The I-year functionally based exercise program was both aerobic (75% heart rate reserve) and resistive (weighted stair climbing). Muscle ultrastructure, determined by quantitative morphometry of the vastus lateralis tissue, and maximal stepheight achieved by each subject were related to isokinetic strength and muscle morphology. Changes in myofibrillar area accounted for 48% of the variance in muscle strength changes. Change in muscle contractile protein was the underlying basis for change in thigh strength which, in turn, was the basis for functional performance. These data provide evidence that, in older women, a mild functionally based training program results in improved muscle structure and performance of the lower body.

Robotic in Vivo Fluoroscopic Arthoplasty Evaulations With Normal Patient Movements

Abstract: A Tracking Fluoroscope System (TFS), the first of its kind, has been developed and the design of this new technology has been previously presented. The TFS is a unique mobile robot that can acquire real-time x-ray records of hip, knee, or ankle joint motion while a subject walks/maneuvers naturally within a laboratory floor area. By virtue of its mechanizations, test protocols can involve many types maneuvers such as chair rises, stair climbing/descending, ramp crossing, walking, etc. Because the subjects are performing such actions naturally, the resulting fluoroscope images reflect the full functionality of their musculoskeletal anatomy. The goal of this follow-up study is to conduct a comparative analysis with traditional stationary fluoroscopy units to determine if this new technology does offer clinical and research advantages.Technical trials with human subjects and active fluoroscope operation were designed to evaluate and refine the TFS engineering and operational features. These trials have been ...

Stair-climbing car

Abstract: The utility model relates to a tool used when people go upstairs while lifting heavy objects, in particular to a stair-climbing car which comprises a manual type and an electric type. Two ends of a shaft of the car are respectively provided with a chassis (C) or a gear (E) welded with a cross-shaped support leg (D) for climbing stairs; and the reason why the support leg (D) is arranged to be cross-shaped is that the cross-shaped support leg can be suitable for steps with any height.

Stair climbing machine capable of easily making turn

Abstract: The invention discloses a stair climbing machine capable of easily making a turn. The stair climbing machine comprises a base frame, a crawler and a motor, wherein wheels are rotationally arranged atthe lower portion of the base frame, the crawler is rotationally installed on the base frame, the motor is installed on the base frame and drives the crawler to rotate through a transmission mechanism, the rotating direction of the crawler during stair climbing is defined as the forward rotating direction, and when the motor does not work, the transmission mechanism can prevent the forward rotation of the crawler from being transmitted to the motor. By means of the scheme, the crawler can roll relative to the ground when the stair climbing machine makes a turn; compared with an existing technical scheme, the abrasion to the crawler can be reduced, the normal service life of the crawler is guaranteed, the resistance to the stair climbing machine during rotating can be reduced, the labor intensity of a user is reduced, and the stair climbing machine is simple and ingenious in structure and quite practical.