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Softball is a popular sport that is very similar to baseball, with only a few subtle differences. For one thing, the softball is larger than the baseball, and the diamond that the game is played on is smaller than a traditional baseball diamond. People began playing softball in the late 1800s, with the first known game being played in 1887 by Harvard and Yale alumni. Upon hearing the score from their annual football game, one of the Yale graduates threw a boxing glove at a Harvard fan, which was hit by someone who swung a stick at it. Thus began the game of softball, which is played by millions of people today. Don't let the name softball fool you. These balls are no softer than a regular baseball, and when you get hit with one, it hurts.
Softball Players Prone to the Same Injuries as Baseball Players
Because the two sports are so similar in nature, baseball and softball players are often prone to the same types of injuries. A common injury among players of both sports is knee injury, and there are many ways that athletes can get many types of knee injuries. For this reason, you will often see ball players wearing knee braces. This is not only because they are treating injuries that they already have, but also to prevent injuries from occurring in the future.
When it comes to knee braces, especially for athletes such as softball players, they need to be lightweight, comfortable and enable the wearer to have plenty of range of movement. This is why so many softball players can be seen wearing the DonJoy Drytex Playmaker Wraparound/Sleeve knee brace. This brace is extremely comfortable to wear and provides lightweight protection against knee ligament injuries while allowing for maximum movement. Available in sizes from extra small to extra, extra, extra large, the DonJoy Drytex Playmaker Wraparound/Sleeve knee brace is ideal for knee pain relief and athletes of both sexes and of all sizes.
Features of the DonJoy Drytex Playmaker Wraparound/Sleeve Knee Brace
The DonJoy Drytex Playmaker Wraparound/Sleeve knee brace is made from Drytex fabric, a more breathable alternative to Neoprene, which has been the fabric of choice for many knee brace wearers for a number of years. This brace is available with either a closed or open popliteal, so if you need extra support in the kneecap, it is there. Athletes with mild to moderate PCL, ACL, MCLK and LCL instabilities can benefit from using the DonJoy Drytex Playmaker Wraparound/Sleeve knee brace, which provides a Four-Points-of-Leverage Dynamic System that supports the knee joint, particularly the anterior cruciate ligament, while the polycentric hinges provide the wearer with full range of movement.
If you are a softball player, or are involved in any other type of sport that involves running and impact on the knees, you need to think about wearing knee braces for protection against knee injuries.
For more information about the DonJoy Drytex Playmaker Wraparound/Sleeve knee brace, you can find it online at http://www.betterbraces.com/donjoy-drytex-playmaker-wraparound-sleeve.
BetterBraces.com is the sports bracing and orthopedic therapy expert. The company offers over 35 ankle braces and supports for customers to choose from that offer ankle and knee pain relief. BetterBraces.com is the official source for ankle braces, ankle supports, and other therapy products from the industry's leading brands - DonJoy, Aircast, Compex, ProCare, Saunders, and Chattanooga.
Scuba diving equipment
There are a few key pieces of equipment that required for any dive, and some other equipment that is used for more challenging diving conditions. Beginners and novice divers, however, will definitely need the following:
Mask
The human eye cannot see clearly through water so a pocket of air is required to maintain vision when diving. A diving mask is like a large pair of swimming goggles with a silicone seal all the way round. It also includes a silicone pocket/seal for the nose, to prevent the wearer inadvertently trying to breathe through their nose and sucking in water instead. Diving masks are built to withstand the greater pressures found underwater, so a snorkelling mask is not suitable for diving.
Fins
Divers get quite shirty if you refer to fins as “flippers”, so be sure to get your terminology right! Physical effort, such as swimming, uses energy and to fuel that energy oxygen is required, which is why people breathe more heavily when doing exercise. Underwater, the diver wishes to conserve energy to make the air in his cylinder last longer. Fins, therefore, are used to make swimming underwater as effortless as possible. Fins are large, flexible blades attached to the feet, which provide maximum propulsion through the water for minimum physical effort. There are two basic types of fins: shoe fins fit onto the bare foot like a slipper, strap fins have a foot pocket with a strap that fits around the heel and are worn with boots.
Protective Clothing
Even in warm water, some form of protective clothing is required. There are four main types:-
• A skin suit is a thin layer that just protects the body from abrasion, either from the equipment worn or from brushing against rocks, corals etc. A skin suit is only worn in the warmest water.
• A wet suit provides some thermal protection as well as protecting against abrasion. Wet suits are available with long or short arms and legs and in a range of thicknesses. Made of neoprene, a wet suit allows water to flush through it, holding a thin layer next to the skin, which the body warms, providing some defence against slightly cooler water temperatures.
• A semi-dry suit is rather like a wet suit but has seals around the neck, wrists and ankles. Water ingresses into the suit and is then trapped there to be warmed by the body. A semi dry suit offers greater thermal protection than a wet suit.
• A dry suit is used for cold water diving and allows no water to ingress at all. A dry suit has built in boots and seals around the wrists and neck; inside the suit the body stays dry. Additional thermal protection is worn underneath a dry suit, in the form of warm under layers. Dry suits are made either from neoprene or a trilaminate membrane; neoprene suits tend to be slightly warmer than membrane, although membrane suits allow greater freedom of movement. When diving in cold water, neoprene hoods and gloves are usually also worn for warmth. Special training is required before diving in a dry suit.
Buoyancy Compensation Device
There are several types of buoyancy compensation device (BCD), variously known as BCDs, BCs (buoyancy compensators), stab (stabilizer) jackets and wings. All work in the same way. The BCD is worn like a jacket and consists of internal air bladders, a hose for adding or extracting air from the bladders, a loop system for holding an air cylinder and usually some pockets and D-rings for holding other pieces of equipment. The air that is added to or taken out of the internal bladders controls buoyancy underwater and the rate of descent and ascent to and from the surface.
Weights
A human being is naturally buoyant, and even when carrying a heavy dive cylinder will not automatically sink under the water. To counteract this natural buoyancy, therefore, divers wear lead weights, either on a belt, in a harness or in the pockets of their BCD. Whilst underwater a small amount of air is added to the BCD to keep the diver off the bottom, or at the depth they have chosen, and whilst on the surface the BCD is filled with air to counteract the negative effect of the weights.
Cylinders
Contrary to popular belief, diving cylinders to do NOT contain oxygen, they contain air. The air is compressed and held in the cylinder under pressure (measured in either pounds per square inch (psi) or bar) by a valve on the top. Cylinders are usually made of steel or aluminium and come in a range of sizes, measured in cubic feet or litres. The advantage of a larger cylinder is that it contains more air, and therefore the diver can stay underwater longer; the disadvantage is the heavier weight. All diving cylinders must be periodically inspected and tested by independently accredited testing facilities to ensure they are safe.
Regulators
Regulators, often referred to simply as “regs”, are more properly called “a set of regulators”, since there are several component parts. The air in the cylinder is held at very high pressure, which a human being cannot breathe, so the “first stage”, which includes a clamp that attaches to the cylinder, reduces the pressure of the air to around 140psi/10 bar above ambient pressure (ambient pressure increases with depth). Attached to the first stage are a series of high pressure hoses. In a typical set up for a novice diver, one of the hoses will be the “feed” for the BCD, one will accommodate the mouthpiece (or “demand valve”), one an alternative air source (also known as an “octopus”) and one a contents gauge.
• The Demand Valve (DV) delivers breathable air to the diver via a mouthpiece. The DV reduces the air pressure further to match the ambient pressure. The diver breaths in and out through the DV, the exhaled air being expelled through an exhaust on the DV, producing the characteristic bubbles associated with breathing underwater.
• The octopus is a second DV to be used by a diving buddy in the case of emergency. It is usually bright yellow in colour for easy identification underwater.
• The contents gauge shows the diver how much air is left in the cylinder and is usually a round dial with a needle to point to the appropriate level. Sometimes content gauges can be combined with other instruments in a console, which might include a depth gauge and/or a compass.
Computer
Nearly all modern divers use a computer. The computer is worn on the wrist like an oversized watch and has many functions. The computer will tell the diver his depth, how long he has been diving and how long he can remain underwater without the need for decompression stops on ascent. It also measures the rate of ascent back to the surface (it is very important to control this as ascending too quickly can cause decompression sickness, also known as “the bends”). The computer has other functions such as calculating decompression stops and some can also be used for accelerated decompression using a mixture of breathing gases, but these are advanced techniques and therefore need not concern the beginner.
IMPORTANT NOTE
It is IMPERRATIVE that anyone considering scuba diving undertakes proper training with a recognised training body. None of the equipment mentioned in this article should be used without instruction. With proper training, scuba diving is a fun, exciting, pleasurable hobby; without, it can be very dangerous indeed.
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