Cos E= (AK X F). N I(Akx
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
THE EFFECT of LOWER LIMB LOADING on ECONOMY and KINEMATICS of SKATE ROLLER SKIING by Tyler Johnson Reinking a Thesis Submitted I
THE EFFECT OF LOWER LIMB LOADING ON ECONOMY AND KINEMATICS OF SKATE ROLLER SKIING by Tyler Johnson Reinking A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Health and Human Development MONTANA STATE UNIVERSITY Bozeman, Montana May 2014 ©COPYRIGHT by Tyler Johnson Reinking 2014 All Rights Reserved ii TABLE OF CONTENTS 1. INTRODUCTION ...................................................................................................1 Load Carriage...........................................................................................................3 Limb Velocity ..........................................................................................................6 Purpose .....................................................................................................................8 Hypotheses ...............................................................................................................9 Delimitations ..........................................................................................................10 Limitations .............................................................................................................10 Assumptions ...........................................................................................................11 Operational Definitions ..........................................................................................11 2. LITERATURE REVIEW ......................................................................................14 -
US Marine Corps MWTC Cold Weather
UNITED STATES MARINE CORPS Mountain Warfare Training Center Bridgeport, California 93517-5001 COLD WEATHER MEDICINE COURSE TABLE OF CONTENTS CHAP TITLE 1 MOUNTAIN SAFETY (WINTER) 2 SURVIVAL KIT 3 COLD WEATHER CLOTHING 4 WINTER WARFIGHTING LOAD REQUIREMENTS 5 NOMENCLATURE AND CARE OF MILITARY SKI EQUIPMENT 6 MILITARY SNOWSHOE MOVEMENT 7 PREVENTIVE MEDICINE 8 PATIENT ASSESSMENT 9 TRIAGE 10 TACTICAL COMBAT CASUALTY CARE 11 LAND NAVIGATION REVIEW 12 NUTRITION 13 HYPOTHERMIA 14 FREEZING / NEAR FREEZING TISSUE INJURIES 15 EXTREME COLD WEATHER TENT 16 PERSONAL / TEAM STOVES 17 TEN MAN ARCTIC TENT 18 BURN MANAGEMENT 19 MISCELLANEOUS COLD WEATHER MEDICAL PROBLEMS 20 CASEVACS AND CASEVAC REPORTING 21 HIGH ALTITUDE HEALTH PROBLEMS 22 ENVIRONMENTAL HAZARDS 1 23 ENVIRONMENTAL HAZARDS 2 24 AVALANCHE SEARCH ORGANIZATION 25 AVALANCHE TRANSCEIVERS 26 BIVOUAC ROUTINE 27 WILDERNESS ORTHOPEDIC TRAUMA 28 COLD WEATHER LEADERSHIP PROBLEMS 29 SUBMERSION INCIDENTS 30 REQUIREMENTS FOR SURVIVAL 31 SURVIVAL SIGNALING 32 SURVIVAL SNOW SHELTERS AND FIRES 33 SKIJORING UNITED STATES MARINE CORPS Mountain Warfare Training Center Bridgeport, California 93517-5001 FMST.07.18 10/22/01 STUDENT HANDOUT MOUNTAIN SAFETY (WINTER) TERMINAL LEARNING OBJECTIVE. Given a unit in a wilderness environment and necessary equipment and supplies, apply the principles of mountain safety, to prevent death or injury per the references. (FMST.07.18) ENABLING LEARNING OBJECTIVE. 1. Without the aid of references, and given the acronym "BE SAFE MARINE", list in writing the 12 principles of mountain safety, in accordance with the references. (FMST.07.18a) OUTLINE. 1. P LANNING AND PREPARATION. (FMST.07.18a) As in any military operation, planning and preparation constitute the keys to success. -
4.6 Marker Kingpin
RULE THE MOUNTAIN We are very pleased to present you with the MARKER Technical Manual 2016/17. It is intended exclusively for our partners and for professionals in the field of ski bindings. The new handbook contains a wealth of insider infor- mation ranging from freeride, touring and novice bindings to pro-style rigs for alpine racing. It also includes a host of insider info, installation instructions, an extensive FAQ and a detailed overview of all MARKER bindings and their ideal uses. For over 60 years MARKER has stood for unbeatable performance and inno- vation. Our 2016/17 program once again delivers powerful and unique products to make the most beautiful sport in the world even safer and more attractive. As a specialized MARKER dealer, you are at the front lines of our interaction with end consumers. MARKER’s pledges of quality and safety would not be seen or heard by the consumers without your conscientious work and pro- fessional recommendations. We'd like to take a moment to thank you for your remarkable efforts. Here’s to a white and successful winter 2016/17 ! The Marker Team PS: The current MARKER Technical Handbook is naturally also available in PDF form for download off the internet: http://extranet.marker.de username: dealer password: sh0ps! 1 CONTENT PAGE CONTENT 1 FOREWORD & GENERAL INFORMATION 4 1.1 Binding Component Description 5 2 GENERAL GUIDELINES 2.1 Binding Inspection 7 2.2 Ski Inspection 7 2.3 Boot Inspection 8 2.4 GRIPWALK 10 3 INSTALLATION - GENERAL GUIDELINES 3.1 Tools and Accessories 10 3.1 Installation -
Dynamics of Carving Runs in Alpine Skiing. II.Centrifugal Pendulum with a Retractable Leg
Dynamics of carving runs in alpine skiing. II.Centrifugal pendulum with a retractable leg. Serguei S. Komissarov Department of Applied Mathematics The University of Leeds Leeds, LS2 9JT, UK Abstract In this paper we present an advanced model of centrifugal pendulum where its length is allowed to vary during swinging. This modification accounts for flexion and extension of skier’s legs when turning. We focus entirely on the case where the pendulum leg shortens near the vertical position, which corresponds to the most popular technique for the transition between carving turns in ski racing, and study the effect of this action on the kinematics and dynamics of these turns. In partic- ular, we find that leg flexion on approach to the summit point is a very efficient way of preserving the contact between skis and snow. The up and down motion of the skier centre of mass can also have significant effect of the peak ground reaction force experienced by skiers, partic- ularly at high inclination angles. Minimisation of this motion allows a noticeable reduction of this force and hence of the risk of injury. We make a detailed comparison between the model and the results of a field study of slalom turns and find a very good agreement. This suggests that the pendulum model is a useful mathematical tool for analysing the dynamics of skiing. Keywords: alpine skiing, modelling, balance/stability, performance Introduction The skiing of expert skiers is characterised by smooth and rhythmic moves which are very reminiscent of a pendulum or metronome. This analogy invites mathematical modelling of skiing based on the pendulum action, which can be traced back to the pioneering work by Morawski (1973). -
Download It FREE Today! the SKI LIFE
SKI WEEKEND CLASSIC CANNON November 2017 From Sugarbush to peaks across New England, skiers and riders are ready to rock WELCOME TO SNOWTOPIA A experience has arrived in New Hampshire’s White Mountains. grand new LINCOLN, NH | RIVERWALKRESORTATLOON.COM Arriving is your escape. Access snow, terrain and hospitality – as reliable as you’ve heard and as convenient as you deserve. SLOPESIDE THIS IS YOUR DESTINATION. SKI & STAY Kids Eat Free $ * from 119 pp/pn with Full Breakfast for Two EXIT LoonMtn.com/Stay HERE Featuring indoor pool, health club & spa, Loon Mountain Resort slopeside hot tub, two restaurants and more! * Quad occupancy with a minimum two-night Exit 32 off I-93 | Lincoln, NH stay. Plus tax & resort fee. One child (12 & under) eats free with each paying adult. May not be combined with any other offer or discount. Early- Save on Lift Tickets only at and late-season specials available. LoonMtn.com/Tickets A grand new experience has arrived in New Hampshire’s White Mountains. Arriving is your escape. Access snow, terrain and hospitality – as reliable as you’ve heard and as convenient as you deserve. SLOPESIDE THIS IS YOUR DESTINATION. SKI & STAY Kids Eat Free $ * from 119 pp/pn with Full Breakfast for Two EXIT LoonMtn.com/Stay HERE Featuring indoor pool, health club & spa, Loon Mountain Resort slopeside hot tub, two restaurants and more! We believe that every vacation should be truly extraordinary. Our goal Exit 32 off I-93 | Lincoln, NH * Quad occupancy with a minimum two-night stay. Plus tax & resort fee. One child (12 & under) is to provide an unparalleled level of service in a spectacular mountain setting. -
Irving S. Scher Richard M. Greenwald Nicola Petrone Editors
Irving S. Scher Richard M. Greenwald Nicola Petrone Editors Snow Sports Trauma and Safety Conference Proceedings of the International Society for Skiing Safety: 21st Volume Snow Sports Trauma and Safety Irving S. Scher • Richard M. Greenwald Nicola Petrone Editors Snow Sports Trauma and Safety Conference Proceedings of the International Society for Skiing Safety: 21st Volume Editors Irving S. Scher Richard M. Greenwald Guidance Engineering and Applied Thayer School of Engineering Research Dartmouth College, Simbex Seattle, WA, USA Lebanon, NH, USA Applied Biomechanics Laboratory University of Washington Seattle, WA, USA Nicola Petrone Department of Industrial Engineering University of Padova Via Gradenigo, Padova, Italy ISBN 978-3-319-52754-3 ISBN 978-3-319-52755-0 (eBook) DOI 10.1007/978-3-319-52755-0 Library of Congress Control Number: 2017938285 © The Editor(s) (if applicable) and The Author(s) 2017. This book is an open access publication Open Access This book is distributed under the terms of the Creative Commons Attribution- Noncommercial 2.5 License (http://creativecommons.org/licenses/by-nc/2.5/) which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. The images or other third party material in this book are included in the work’s Creative Commons license, unless indicated otherwise in the credit line; if such material is not included in the work’s Creative Commons license and the respective action is not permitted by statutory regulation, users will need to obtain permission from the license holder to duplicate, adapt or reproduce the material. This work is subject to copyright. -
Biomechanics in Cross-Country Skiing Skating Technique and Measurement Techniques of Force Production JYU DISSERTATIONS 97
JYU DISSERTATIONS 97 Olli Ohtonen Biomechanics in Cross-country Skiing Skating Technique and Measurement Techniques of Force Production JYU DISSERTATIONS 97 Olli Ohtonen Biomechanics in Cross-country Skiing Skating Technique and Measurement Techniques of Force Production Esitetään Jyväskylän yliopiston liikuntatieteellisen tiedekunnan suostumuksella julkisesti tarkastettavaksi Sokos Hotel Vuokatin auditoriossa (Kidekuja 2, Vuokatti) kesäkuun 29. päivänä 2019 kello 12. Academic dissertation to be publicly discussed, by permission of the Faculty of Sport and Health Sciences of the University of Jyväskylä, at the auditorium of Sokos Hotel Vuokatti (Kidekuja 2, Vuokatti), on June 29, 2019 at 12 o’clock noon. JYVÄSKYLÄ 2019 Editors Simon Walker Faculty of Sport and Health Sciences, University of Jyväskylä Ville Korkiakangas Open Science Centre, University of Jyväskylä Cover picture by Antti Närhi. Copyright © 2019, by University of Jyväskylä Permanent link to this publication: http://urn.fi/URN:ISBN:978-951-39-7797-9 ISBN 978-951-39-7797-9 (PDF) URN:ISBN:978-951-39-7797-9 ISSN 2489-9003 ABSTRACT Ohtonen, Olli Biomechanics in cross-country skiing skating technique and measurement techniques of force production Jyväskylä: University of Jyväskylä, 2019, 76 p. JYU Dissertations ISSN 2489-9003; 97) ISBN 978-951-39-7797-9 (PDF) Requirements of a successful skier have changed during last decades due to e.g. changes in race forms and developments of equipment. The purpose of this the- sis was to clarify in four Articles (I-IV) what are the requests modern skate ski- ing sets for the athletes in a biomechanical point of view. Firstly, it was ex- plained how skiers control speed from low to maximal speeds (I). -
The International Ski Competition Rules (Icr)
THE INTERNATIONAL SKI COMPETITION RULES (ICR) BOOK II CROSS-COUNTRY APPROVED BY THE 51ST INTERNATIONAL SKI CONGRESS, COSTA NAVARINO (GRE) EDITION MAY 2018 INTERNATIONAL SKI FEDERATION FEDERATION INTERNATIONALE DE SKI INTERNATIONALER SKI VERBAND Blochstrasse 2; CH- 3653 Oberhofen / Thunersee; Switzerland Telephone: +41 (33) 244 61 61 Fax: +41 (33) 244 61 71 Website: www.fis-ski.com ________________________________________________________________________ All rights reserved. Copyright: International Ski Federation FIS, Oberhofen, Switzerland, 2018. Oberhofen, May 2018 Table of Contents 1st Section 200 Joint Regulations for all Competitions ................................................... 3 201 Classification and Types of Competitions ................................................... 3 202 FIS Calendar .............................................................................................. 5 203 Licence to participate in FIS Races (FIS Licence) ...................................... 7 204 Qualification of Competitors ....................................................................... 8 205 Competitors Obligations and Rights ........................................................... 9 206 Advertising and Sponsorship .................................................................... 10 207 Competition Equipment and Commercial Markings .................................. 12 208 Exploitation of Electronic Media Rights .................................................... 13 209 Film Rights .............................................................................................. -
Section B (A Technical Understanding of Snowboarding)
B/01 Section b - A Technical Understanding of Snowboarding 6 In this chapter we will explore... How snowboarders can alter their path down the The Snowboard mountain by making turns of different shapes and sizes. Alongside this, we will look at the different Turn phases of the turn which are particularly useful Turn Size and Shape when communicating the sequence of events throughout a turn to your Turn phases students. We will also explain the variety of turn types that can be used and Turn types consider the forces that impact the turn. Turn forces CHAPTER 6 / THE SNOWBOARD TURN B/02 Turn Size and Shape Put simply, the longer the board spends in the fall line or the more gradually a rider applies movements, the larger the turn becomes. When we define the size of the turn we consider the length and radius of the arc: small, medium or large. The size of your turn will vary depending on terrain, snow conditions and the type of turn you choose to make. SMALL MEDIUM LARGE A rider’s rate of descent down the mountain is controlled mainly by the shape of their turns relative to the fall line. The shape of these turns can be described as open (unfinished) and closed (finished). A closed turn is where the rider completes the turn across the hill, steering the snowboard perpendicular to the fall line. This type of turn will easily allow the rider to control both their forward momentum and rate of descent. Closed turns are used on steeper pitches, or firmer snow conditions, to keep forward momentum down. -
Instructor Guide
INSTRUCTOR GUIDE Using the CASI Rider Improvement Program (RIP) The CASI Rider Improvement Program (RIP) has been developed with the goal of being a flexible, adaptable program that is suitable for group lessons, private lessons, or multi-week programs. Feel free to adapt the program to your specific needs regarding duration, number of sessions, etc. Each progress card in the program provides some standard Program Stages: information: Students will progress their skills through the following stages, Info: from 1 through 5. Following the completion of stage 5, they may Student name, date, resort info, instructor name and final com- choose either the Freestylin’ or Freeridin’ stage (or they may ments: choose to complete both!). • This area is useful in creating return lessons, as it ensures that your students have a record of your lesson with them. • Comments should be overall positive with suggestions for I. LITTLE RIPPERS A future practice and skills. II. LITTLE RIPPERS B Terrain: The areas of the mountain that students can expect to use in this III. LITTLE RIPPERS C stage. 1. BASICS Goals: • These are the technical outcomes that you will work 2. TURNING towards during your time in the particular stage of the program. 3. CRUISING • Note: Depending on your program format, each stage may range from 1 – 3 lessons. For some students it may be 4. SHREDDING realistic to accomplish all of the goals in one lesson, but this will not be the norm. 5. RIPPING Skills – Technical: 6a. FREESTYLIN’ - and/or - 6b. FREERIDIN’ • These represent the technical points of the lesson that the instructor will be introducing and practicing with the student. -
Tech Manual 2018/19
TECH MANUAL 2018/19 1 We build skis 2018/19 is a benchmark year for Elan, and represents a dramatic shift for our Brand. Our compelling award winning ski collection is updated, and backed by a fresh new approach to branding and marketing to our consumer, putting Elan in a great position for the future. At Elan, we don't just build skis, we build BETTER skis, and with over 70 years dedicated to handcrafting skis in the Alps, that’s not just a statement, it's a promise. Earning praise year after year, Elan skis are not only validated by test results and design awards. They are also approved by top-level athletes, as well as thousands of skiers around the world, who trust Elan to provide equipment that produces exceptional experiences in the mountains, again and again. Thank you for supporting Elan and have a great and successful season. The Elan Team TABLE OF CONTENT NEWS 2018/19 BRAND 4 ELAN NEWS 6 ELAN AAA-SERIES 8 TECHNICAL INFORMATION ELAN TECHNOLOGIES 10 SAFETY FEATURES 14 REFERENC PARTS - RETAIL 16 REFERENCE PARTS - AAA-SERIES 17 ELAN BINDING LINE 2018/19 18 RENTAL 22 RENTAL TECHNOLOGY 23 SYMPRO-ESP/SYMRENT-ESR 18.19 24 ELAN RENTAL LINE 2018/19 26 DEALER ONLINE SUPPORT 28 JUST ONE CLICK 29 ELAN BRAKE LINE 2018/19 30 PRODUCT PREPARATION 32 MOUNTING POSITIONS FOR MODELS 2018/19 33 ADJUSTMENT CLASSIFY YOURSELF 38 RELEASE/RETENSION ADJUSTMENT TABLE 39 SYMPRO/SYMRENT/BYS ON THE SHOP FLOOR 41 MOUNTING BINDINGS & PLATES WORKSHOP TOOLS AND AIDS 46 DRILL TEMPLATE SELECTION 47 DRILL TEMPLATE 92W & 92 FAT 50 DRILL TEMPLATE AMBITION 54 DRILL TEMPLATE -
The 4 Edges of the Snowboard
2016 ISSUE 1 The Official Publication of the PSIA-AASI Central Division FLEXING ;) SNOWBOARD UPDATE | WHAT’S NEW IN EDUCATION | SNOWSPORTS DIRECTORS UPDATE | THE 4 EDGES OF A SNOWBOARD The “4 Edges” of a Snowboard By Chuck Roberts n the 1980’s, when snowboarding at most ski resorts was in its infancy, snowboards resembled stiff planks with little flexibility. Figure 1 is a photo of a 1987 Burton V-Tail, a stiff board with a running surface that resembled a V-bottom fishing boat. It also Ihad a location for a skeg (similar to a surf board) to aid when riding in powder. It appeared to work well in powder but had its limitations on groomed slopes. Turning the board involved unweighting and upper body rotation, resulting in skidded turns on groomed slopes. There was virtually no way to torsionally flex the board (torsional flex refers to the design features of a snowboard which allows it to twist along the longitudinal axis of the board), Figure 2). Fig. 1 Fig. 2 Fig. 3 Fig. 4 1987 Burton V-Tail “Cruiser” Torsional flex 1991 K2 TX “Gyrator” Modern twin tip snowboard Snowboards evolved into more flexible structures in the Likewise, the leading toe edge of the snowboard is engaged in early 1990’s as shown by the Gyrator in Figure 3. There was Figure 5C and the trailing toe edge is engaged in Figure 5D. some torsional flexibility but the narrow stance (rider’s feet close together) made it difficult to torsionally flex the board. The torsional flexing of the board when turning is performed Despite this, snowboarders discovered that torsionally flexing with the lower body and virtually no upper body influence, the board aided in turning.