Inline speed skating - Wikipedia. This article is about wheeled speed skating. For ice speed skating, see speed skating. Inline skaters competing. Inline speed skating is the roller sport of racing on inline skates, or as they're commonly called, rollerblades. It is often called inline racing by participants. Although it primarily evolved from racing on traditional roller skates, the sport is similar enough to ice speed skating that many competitors are now known to switch between inline and ice speed skating according to the season. An inline speed skate is a specialized shoe version of the inline skate. The boot or shoe is close- fitting, without much padding and usually made of leather and carbon fiber and/or fiberglass composites. The lower part of the boot is usually made of carbon fiber and the upper part with leather. This also protects the boot from getting damaged on hitting other boots during a race. For best performance, the boot must conform closely to the shape of the foot, so most inline speed skating boots are heat- moldable, which allows the user to re- shape the boots to some extent when heat is applied (by placing the boots in oven at 1. It is also quite common to have boots custom- made for improved fit. Skin blisters due to friction can be a problem, and common solutions include: neoprene or silicone . Frames flex during skating, and the amount of flex can be a personal factor in which one to choose. A frame which is too stiff for a particular skater may feel unstable on corners, and a frame that is not stiff enough will be slower. Frame stiffness also works along with boot and wheel stiffness, so there are endless possible variations. A light frame is desirable. The new- age frames that are being developed are designed to absorb minute shocks and jerks that are usually experienced, thereby not hindering the skater's momentum. Ideal frame length is affected by foot size and wheel size. A slightly shorter frame is often preferred for the tight curves of smaller tracks but is slower. A longer frame is faster but much harder to turn. How to Roller Skate. Roller skating and rollerblading can be a fun leisure activity, a great form of exercise, a competitive sport, or a mode of transportation. The frame position can usually be adjusted with respect to the skate, to adjust for a skater's individual foot, ankle and leg characteristics. Frame positioning is very critical as even a minor change from the skater's actual frame position can lead to severe foot pain. Also, many times it leads to 'locking' of the skater's ankle and/or calf muscle, thereby restricting its movements. It may take a skater several days to weeks to test and adjust the frame position of his new skates. The typical Inline mounting is 1. The frame usually mounts three, four, or five polyurethanewheels. The three wheel frames are used by skaters with small feet, otherwise 4 wheel frames are commonly used, with 9. Five- wheel frames with smaller wheel have lost favor. Each wheel contains two ball bearings with an aluminum spacer, held in place with an axle screwed into the frame. A positive attitude is very important for successful weight loss and weight management. To lose weight permanently, you must make a commitment to gradually adopt a. Use the Calories Burned Calculator to look up the calories burned for over 500 activities. Reunion Humor and Other Myths. Because Life is Funny. This is it, folks. This is the first, last and only weight loss article you will EVER need to read. Only, this is much more than an article. This, my friends, is a guide. Inline speed skating is the roller sport of racing on inline skates, or as they're commonly called, rollerblades. It is often called inline racing by participants. How to Rollerblade Backwards. Skating backwards is an aggressive move used in advanced inline skating. After mastering forwards rollerblading, you can make the. He has been writing since 2002 about personal finance, sports and parenting. Recent Posts. 10 Amazing Health Benefits of Roller Skating; 7 Ways to Protect Your Ankles While Breaking in New Skates; Vanilla 360 Jam Skates Review: Vanilla Skates. Learning to Roller Skate: Advice from a Fellow Newbie. Posted on October 7, 2010; by Melinda; in Thoughts on skating; I’m pretty new at roller-skating. Larger wheels require better skating technique, so skaters generally progress upwards in wheel size as they gain experience. Lots of controversy surrounded this development since FIRS did not allow 1. On January 1. 8 of 2. FIRS released a press release that stated: . We will be grateful for the spread of this information and we take this opportunity to send you. Kind regards, Jorge Roldan, FIRS Speed Technical Committee, Chairman & Robert Marotta FIRS Secretary General. So, speed skaters tend to select the hardest possible wheels, with the highest polyurethane durometer for their skating condition, limited by either wheel slip or surface roughness. Durometer selection is also affected by skater weight, and temperature. Wheels for indoor use are hardest with a durometer of 8. They tend to last well, but can be easily damaged if used outdoors. Wheels for outdoor use are softer with a durometer of 8. Harder outdoor wheels can also be used effectively indoors. Skaters sometimes combine different hardness wheels on the same skate in an attempt to achieve the best combination. Skaters also refer to wheel . This refers to the relative height to which a dropped wheel rebounds. It is a reasonable comparative indicator of the relative energy absorbed by elastic hysteresis of a wheel during skating. Bearing sizes have been standardized around the popular 6. A smaller and lighter 6. Bearing manufacturing precision generally run from ABEC- 1 to ABEC- 1. Bearings with ceramic balls (and races) have been available since the late 1. They are lighter and longer lasting, however significantly more expensive. Black silicon nitride ceramic is superior to white zirconium dioxide ceramic, since it is considerably harder and tougher. At the modest rotational speeds encountered in skates, manufacturer data suggests negligible difference in friction performance between the various bearing materials. At these speeds, ball bearing friction tends to be dominated by seals and lubricants. Bearing shields reduce the entry of dirt into the bearing. Metal and rubber non- contact shields are commonly used, of which rubber shields are slightly more effective. Neither shield type is totally effective, often resulting in the need for bearing maintenance. The ball retainer is usually made of either metal, plastic, or glass. Plastic types are preferred since they are quieter. Bearing lubrication is usually either light oil or grease. Synthetic types last longer before breaking down. Grease assists in holding dirt away, and stays in the bearing longer, reducing maintenance and increasing bearing life. The lifetime of bearings used for outdoor speed skating is often quite limited due to damage caused by dirt ingress. These bearings are usually cleaned by soaking them in petrol overnight and then cleaning the dirt. In search of the maximum speed the principal goal is to minimize wind resistance, hence the use of skinsuits, special helmets and techniques. The second issue is elastic hysteresis energy absorption in the wheel. The distant third is bearing internal friction, a set of bearings in good condition, properly inserted and lubricated is normally enough. Technique and control. This is because of the greater frictional forces in the direction of travel and lesser ability to apply friction without slipping of wheels on a hard surface compared to a steel blade on ice. Speedskaters move each foot across the center line of travel, leading to the double push a method named by United States skater Chad Hedrick(This is a normal efficient skate technique that is learned as skater gets comfortable with skates). The technique allows two pushes in each stroke of the skate. However, it can be tiring for inexperienced skaters who have improper technique and they will often save it until needed, such as the latter stages or final sprint of a distance race. With proper execution, the double push is an energy saver. The double push is mostly used in outdoor racing and the straightaways of indoor skating. During Sprints, skaters need to initially push their body with force to get a jump start. For this they tend to take quick and sharp strides. Once they have achieved a good pace, they move to taking comparatively longer strides. Speedskaters also need to take care of their body posture during all of this. They usually bend from their knees to maintain a low posture. This has two advantages. First of all, it increases the reach of the skater's legs, which results into even more powerful strides. Secondly, a low posture reduces the total surface area of the skater's body that comes in contact with the resistive air, thus providing an aerodynamic advantage. Turning is significantly more difficult with inline speed skates than recreational skates because of more and larger wheels, creating a longer wheelbase. The wheel profile, that is, the cross- section, is parabolic, with a sharper shape than recreational or aggressive wheels, allowing the skater to essentially skate on a smaller, and hence more agile, wheel when leaned over in a turn. Brakes are not generally used on speed skates so various other techniques to slow down are used, such as slaloming (skating s- curves) or v- plowing (or . It is not readily obvious to an observer from a skater's stance that the skater is v- plowing, if it were the skater would quickly crash. The v- plow is often the stop used in situations where there is little lateral and forward room to stop. One technique is the T- stop, essentially dragging one foot perpendicular to and behind the other, however this wears the wheels of that skate quickly. Another stop involves picking up one foot and setting it down quickly and repeatedly somewhat perpendicular to the forward motion while keeping weight on the other foot. Hockey stops are possible on speed skates, but require a very deep lean in order to cause the wheels to lose traction and slide, also the fact that wheels are sliding means that the wheels are also wearing down very quickly. Grass runouts are always a last option, given an adjacent grassy area. An inline speedskater takes much time to stop and often has still fewer options in an emergency, often taking several hundred feet on a level surface to come to a stop at a full, controlled deceleration. Thus, a skater should be familiar with and proficient in stopping techniques before attempting difficult situations such as heavily travelled roads or hills. Training. A strict diet and a rigorous training schedule has to be followed. The training schedule is mainly designed to build and maintain strong thighs and calves. But skating, just like swimming, requires the use of the whole body. Therefore, it is critical that the whole schedule is well balanced to attain and maintain a sturdy upper- body too. Also, a flexible upper body is preferred, which could help in maintaining the balance of the body in a better way. A heavy, protein- rich diet is required to be followed. Usually, skaters have two sets of skates/wheels, one for training and the other for races and competitions.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
June 2017
Categories |