نتایج جستجو برای: rock climbing

تعداد نتایج: 45927  

2005
Christine M Mermier Robert A Robergs Susie M McMinn Vivian H Heyward M McMinn V H Heyward

Objectives-To report the physiological responses ofindoor rock climbing. Methods-Fourteen experienced climbers (nine men, five women) performed three climbing trials on an indoor climbing wall. Subjects performed three trials of increasing difficulty: (a) an easy 900 vertical wall, (b) a moderately difficult negatively angled wall (1060), and (c) a difficult horizontal overhang (1510). At least...

Journal: :CoRR 2011
Caleb Phillips Lee Becker Elizabeth Bradley

This paper applies machine learning and the mathematics of chaos to the task of designing indoor rock-climbing routes. Chaotic variation has been used to great advantage on music and dance, but the challenges here are quite different, beginning with the representation. We present a formalized system for transcribing rock climbing problems, then describe a variation generator that is designed to...

2015
Caleb Phillips Lee Becker Elizabeth Bradley

This paper applies machine learning and the mathematics of chaos to the task of designing indoor rock-climbing routes. Chaotic variation has been used to great advantage on music and dance, but the challenges here are quite different, beginning with the representation. We present a formalized system for transcribing rock climbing problems, then describe a variation generator that is designed to...

2012
Robyn Simmons Ian Q. Whishaw Jon Doan

INTRODUCTION Rock climbing is becoming both accessible and popular amongst a broader population base [1]. This increasing participation has been matched by an increasing injury rate, particularly injuries to the distal upper extremity [2]. The most common climbing injuries occur in the finger flexor tendon pulleys, which can be overloaded to failure by acute excessive force in compromised finge...

Journal: :British journal of sports medicine 1990
A T Cole

The sport of rock climbing has undergone a significant change in recent times with technically harder climbs being attempted more often. This has meant that climbers have taken to more training including weight training, using artificial climbing walls and the more traditional 'bouldering' i.e. training on natural outcrops and boulders. This increase in standards has led to injuries associated ...

2012
SHAWN D. RUSSELL CHRISTOPHER A. ZIRKER SILVIA S. BLEMKER

Three computer models of varying complexity were developed in order to investigate the kinematics, kinetics, muscle operating ranges, and energetics of rock climbing. First, inverse dynamic models were used to investigate the joint angles and torques used in climbing and to quantify the total mechanical work required for typical rock climbing. Climbing experience was found to have a significant...

Journal: :British journal of sports medicine 2004
A W Sheel

Rock climbing has increased in popularity as both a recreational physical activity and a competitive sport. Climbing is physiologically unique in requiring sustained and intermittent isometric forearm muscle contractions for upward propulsion. The determinants of climbing performance are not clear but may be attributed to trainable variables rather than specific anthropometric characteristics.

Journal: :Journal of sports science & medicine 2008
Nick Draper Glenys A Jones Simon Fryer Chris Hodgson Gavin Blackwell

Rock climbing is a multi-discipline activity that encompasses forms such as bouldering, top roping and lead climbing on natural and artificial climbing surfaces. A major focus of research has been explanation of physiological functioning. More recent research indicates that anxiety levels are elevated for less experienced climbers and in response to lead climbing ascents. Research regarding the...

Journal: :Chaos 2012
C Phillips L Becker E Bradley

This paper applies the mathematics of chaos to the task of designing indoor rock-climbing routes. Chaotic variation has been used to great advantage on music and dance, but the challenges here are quite different, beginning with the representation. We present a formalized system for transcribing rock climbing problems and then describe a variation generator that is designed to support human rou...

2001
Douglass Shaw Paul Jakus

In this paper we estimate the demand for rock climbing and calculate welfare measures for changing access to a number of climbs at a climbing area. In addition to the novel recreation application, we extend the travel cost methodology by combining the double hurdle count data model (DH) with a multinomial logit model of site-choice. The combined model allows us simultaneously to explain the dec...

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