Author: blogger
Is your car driving your pain? An osteopaths opinion
Whether driving a car, a bus, or a lorry or even as a passenger – you could be suffering driving related back pain.
In all these cases, osteopathy can help to reduce pain and your osteopath in Manchester can offer advice on back pain management, including simple exercises to prevent problems in the future.
Keep moving is advised by osteopaths –
Its not just the driver who can stiffen up in a car. Passengers are often seated for long periods of time in a fixed position.
Movement is the key for car, driver and passenger.
As a passenger, try to alter your position from time to time and sit with your knees bent and thighs level and comfortable. Avoid sitting with your legs crossed; move them regularly.
For driver and passengers, stop regularly, ideally once an hour, especially when feeling tired.
Get out of your vehicle and walk around it several times.
Stretch like a cat, gently moving your arms around, bringing your knees up to your hips, and stretching your whole body.
Osteopaths ask any back pain sufferer to consider the following
Choose a car, with an adjustable lumbar support (and use it). Alternatively, keep a small cushion in the car to support your lower back.
Choose a car with a higher kerb height to make getting in and out less stressful on the spine.
Depressing the clutch increases the pressure on your back so choose an automatic to avoid this.
Power steering also significantly reduces the load on the spine.
Driving can give you
Neck Pain
Headaches
Eyestrain
Shoulder Pain
Wrist Pain
Elbow Pain
Back Pain
Bottom Ache
Hip Pain
Knee Pain
Foot and Ankle Pain
Is the car the right fit for you?
Sometimes, the design of the car itself can lead to back problems. If you have to drive particularly long distances, check out the cabin and layout of the controls with the tests set out below, and a comfortable motorway cruiser is gentler on your back
If the car can pass these four simple tests then there is a good chance that it is suitable for the particular driver. By using these tests a prospective buyer can make an informed choice of car and hopefully avoid drivers back pain.
Try the following tests that our Manchester Osteopaths often mention
1. The Praying Test The driver places both hands together, pointing forwards. If the steering wheel is not offset then the driver should be pointing straight at the centre of the wheel. The danger of having an offset wheel is that most drivers tend to rotate the middle of the spine to compensate for its position, producing long term back strain.
2. The Fist Test With the seat in the normal driving position make a fist with the left hand keeping the thumb to the side of the index finger. It should be possible to insert the fist on the crown of the head. If it is only just possible to insert the flat of the hand between the roof and the head then there is insufficient headroom. The danger of having too little headroom is that the driver may compensate for the lack of height by slouching in the seat which puts a strain on the spine and thighs.
3. The Look Down Test With both hands placed evenly on the steering wheel look down at the legs. It should be possible to see equal amounts of both legs between the arms. Frequently the left leg will be visible but the right leg will be obscured by the right arm which may indicate that the shoulder girdle is rotated to the left in relation to the pelvis.
4. The Right Leg Test This test should be performed after you have stopped having driven the car for a short while.
Once again, look down and examine the position of the right leg. Is it elevated above the level of the left or has it fallen out towards the edge of the seat? Is the right foot roughly in line with the thigh as it should be, or has it had to come across towards the centre of the car?
5. The Kerb Height Test Swing the right leg out of the car as though getting out, and place the right foot on the ground. Try and ensure the lower leg (shin and calf) is in a vertical position.
Now look at the surface of the right thigh. It should be sloping down towards the knee. If it is sloping upwards (i.e. if the knee is higher than the hip) you will have difficulty when exiting this vehicle.
If the car can pass these 5 simple tests there is a good chance that it is suitable for that particular driver. By utilising the tests, a prospective purchaser should be able to produce a short list of suitable vehicles, from which they can then make a choice.
When driving
Car seats can be adjusted to suit your posture but make sure that you always:
1. Keep your seat reasonably upright, leaning backwards only at a slight angle.
2. Keep the headrest adjusted so that the centre of the headrest is level with your eyes. Dont set the headrest too low as this can allow more serious injury in an accident.
3. When getting in, sit first then swing your legs into the car. When you get out, move the seat back before swinging your legs out.
4. Do you ride the clutch, resting your foot in the air? No wonder your ankles or calf muscles hurt.
5. To relax, raise your shoulders to your ears breathing in, and then lower them as you breathe out. You may want to do this at every red traffic light, or major junction.
6. Avoid reaching behind to get bags from the rear seat. Dont be lazy. Get out and open the door.
7. Be careful when loading and unloading. Lift correctly.
8. Avoid lifting unnecessary weights. Get help to change a tyre.
9. Sit with arms gently bent at the elbow to the wheel and dont lean forward out of the seat.
10. Wear a seat belt and make sure it is properly adjusted. Make sure children also have appropriate seat belts and cushions.
Remember
Prevention is better than cure.
Sit properly, drive relaxed.
Osteopaths can advise on posture.
Osteopaths treat neck and back pain and a great many other things as well.
If you are unlucky enough to be involved in a road accident osteopathy can help relieve the pain of injury, especially whiplash-type injuries.
Osteopaths are often asked by solicitors to write medico-legal reports on accident
victims, to help them claim compensation.
Car valeting means, mainly, the job of cleaning and polishing both the inside and the outside of cars. Private car owners as well as garages and car rental companies are the most common clients of car valets.
While the chief business is cleaning, a car valet is required to have great marketing skills too. A car valet should talk about the details with a customer, and offer his recommendations, before he begins work. He should examine the car thoroughly after finishing.
A car valet needs to look at the windscreen, the bodywork and the paintwork, and the wheels and tyres. Small parts such as mud flaps might need to be changed. Inside, the engine as well as the windows and the upholstery require cleaning.
If you want to join car valeting, you can be self-employed or work with a company. It’s possible to work part-time as well as full-time. To be a mobile car valet you will need to possess your own car and driving license along with the required equipment to carry.
You need to learn how to use your tools well. You need to know something about the different kinds of paint used on cars. How to cleanse a car and with which cleaning product depends on this. Several chemicals used in the cleaning compounds are poisonous. So be attentive of safety issues and use protective gear when necessary.
It takes around three hours to spruce up a car. The work is fatiguing. Your strength level should be high and you should be available to work outdoors in the heat or rain. Good focus and attention to detail are important. You shouldn’t miss the smallest speck of mud or the littlest scratch. So is communication skill. You need to work out what your client’s requirements are and provide him all the advice you can.
It is not essential for you to have a formal certificate in order to get a job as a car valet. However, if you think you could do with some training, then you could sign up for an apprentice course. Such courses are available at different levels. Much the best training, though, can be got from watching and learning from proficient car valets at work.
How much money you earn will depend on many factors. Salaries fluctuate country-wise. The demand for car valeting in your business area, how many hours you put in, whether you are self-employed or work for a company, and last but not least your experience- all these are key factors. But wherever and however you are positioned, don’t join the profession if cars do not charm you.
Speakers Overview:
The car speakers you use will have the absolute say in how your system will sound. There are many different types of speakers available. A single speaker can be used to reproduce the full range of sounds but it is not ideal. If the speaker is too great it will have problems reproducing high frequencies which require rapid movement of the speaker. If it is too diminutive it will have problems reproducing low frequencies which require large amounts of air to be moved. Because a single speaker cannot reproduce all sounds accurately multiple speakers are used each of which imitates sound in the frequency range it was designed for. A speaker called a tweeter reproduces high frequencies generally above 2 kHz.
Tweeters are small and lightweight so they can respond fast. Very little power is required for powering tweeters because they are very efficient. Woofers are the exact opposite because they usually require considerable amounts of power to really move air. Woofers are meant to produce sound at frequencies below 250 Hz and often just below 100 Hz (in the case of subwoofers). Because a woofer must move considerable amounts of air they are usually large with typical sizes of 10″, 12″, 15″ and even 18″! On the other hand tweeters are usually very small ranging in size from 1/2″ to 2″ in size. Typically, tweeters larger than 1″ in size cannot respond fast enough to sound good and are too directional. In between are midrange speakers which handle the frequencies between the woofers and tweeters. Further separation can be done but is usually unrequired and just complicates the crossover which must separate the full audio signal into multiple parts for each speaker.
Things to look for:
Power Handling: Just as with amplifiers, RMS or continuous power is pivotal here. Some manufacturers will assert very high power handling figures but they are usually for very short peaks only. Granted music is not continuous but the continuous power handling gives you a much better impression of how much power a speaker can really handle. For tweeters and midranges, power handling is not as critical since it does not take much power for them to play loudly. For woofers though a rough match should be made between the woofer and the amp driving it.
Sensitivity: This is a very important specification for a speaker. It gives you an idea of how loud a speaker will play given a certain input power. If a speaker is insensitive then it will require greater power to play at the same volume level than a speaker that is more sensitive. Figures between 85 dB and 95 dB at 1 watt RMS at 1 meter are regular. If you use anything outside of this range you may have trouble matching the output levels of the speakers relative to each other. .
Physical Size: You must pay attention to the size of the speakers you choose. Tweeters are very small but need to mounted where they fire nearly directly at you or they may not be heard correctly. Some tweeters have better off axis response than others. If you will not be on axis with the tweeter when you audition tweeters in a store listen to how their sound variates as you move around them to see if they will work in your car. Midranges should fit in the door or dash spaces provided or you will have to do some cutting or fabrication. In general the greater the woofer the larger the enclosure required to hold it. Some woofers are better optimized for modest enclosures than others (Kicker Solobaric, JL Audio W6 for example). Make sure you have enough room in your trunk or hatchback for the woofer. Kickpanels for midranges and tweeters or coaxials typically offer better imaging than locations in the door however the soundstage is sometimes lower than when you have the tweeters mounted high in the doors or on the A pillars.
How Do Speakers Work?
Moving Speaker Speakers are air pistons that move back (on the negative cycle of the signal) and forth (on the positive cycle), creating varied degrees of air pressure at different frequencies. The amplifier (either separate or built-in your radio), produces electrical impulses that change from positive and negative voltages (AC). This current reaches the voice coil inside the speaker, forming an electro-magnet that will either be repelled, or attracted by the fixed magnet at the bottom of the speaker. The voice coil is attached to the cone, moving it back and forth, creating sound. The surround (rubbery circle that joins top of the cone and metal basket) and the spider (usually yellow corrugated circle joining bottom of cone to magnet) make the cone return to its original position.
Speaker Sensitivity, measured in dB, is how loud a speaker plays (usually 1 Watt, 1 meter). A higher Sensitivity rating means that the speaker will play louder using the same power as a speaker with a lower rating.
The back and front parts of the speaker should be separated from each other. When the front of the cone is pushing air, the bottom is pulling air, creating a cancelling effect. Ideally each speaker should be in an enclosure. If you are mounting a speaker in a big hole, make certain you build a panel to isolate the front and back of the speaker (baffle).
Imaging, Staging and Directivity
Imaging – is being able to pick certain sounds from different places. The singer would usually be located towards the middle of the car, guitars, trumpets, and other instruments towards the sides of the car. If you scatter speakers all around the car your imaging would be very bad, since you would be producing the same sound at different places. If you have a system with flawless imaging, the sound should seem to come from different instruments and voices, not speakers.
Staging – is the ability of a system to “fool you” into feeling that everything (including bass) is in front of you. The sound should be identical to a stage in a concert, where the singer would be in the front center, and the rest of the instruments and background vocalists would be located to the left and right (but always on the front).
Good staging and imaging are not so easy to implement. It takes a lot experimenting with speaker location and direction.
Directivity – of sound is related to frequency. At higher frequencies it is simpler to pinpoint where the sound is coming from than lower frequencies. This can be used to our advantage in car stereo. Tweeters are the most important part of getting good staging. They should be aimed towards the middle of the car. A way to “bring” the bass to the front of the car is to fool our ears by overlapping frequencies played by midbases and subs, so that your midbases actually “pull” the bass to the front, since lower bass in not too directional. You should crossover your midbases as low as you can (without getting distortion). Then cut your subs at a bit higher frequency (preferably 60 HZ or less). This will mix the bass coming from the front and rear, making the bass seem to come from the front. Adding a center channel also improves staging, if it is set up correctly.
Types of Speakers
Coaxials – Coaxial speakers (or three-ways) are two (or more) speakers built-in the same frame. They are cheaper than separate woofer and tweeters and also easier to install. There is no need to worry about crossovers, since they are already built-in (you might still need to add a crossover to block bass if you are using high-power amplifiers). A disadvantage of coaxials is the lack of flexibility. For example, if the coaxial is all the way in the kick panel, or door panel aiming at your feet, you will not have good staging or imaging. You should usually consider coaxial speakers for the back and the front of the car, unless you only have one speaker hole and don’t plan to cut any more holes in the car.
Separates – Separates consist of a tweeter and woofer, and [most of the time] come with an external crossover. The woofer is usually mounted in the factory hole in the door or kick panel. The tweeters can be mounted in different places. Typically they are installed towards the top front corner of the door panel, in the dash or the in the blank plastic piece on the top front side of the doors (where the mirror is on the outside). You would have to experiment with angle and location to achieve the best possible imaging and staging.
Horns – Horns are very good at directing sound and have high efficiencies. Horns are typically mounted under the dash. By doing this, difference in distance from left and right speakers are greatly reduced over conventional mounting locations. Since horns play mids and highs, tweeters are not needed. Horns cost more than conventional speakers and require customization. Horns are not for everyone though. It is not easy to properly setup a set of horns.
Midbases – Midbases are usually 5, 6 or 8 inch speakers that are designed to go lower in frequency and are part of a three way system with a mid and tweeter. Midbases are usually mounted in the doors.
Subwoofers – Subwoofers add lower frequencies to the system. They have to be enclosed in a box, with the exception of free air subwoofers, which use the trunk as an enclosure. There are many different types of boxes and implementations discussed in the “subwoofers” section.
Car Speaker Mounting Locations
Front Speakers – The best place to mount speakers in the front, in custom kick panels. If this is impossible, try to point the speakers towards the center of the car, and try to minimize the distance between the right and left speakers to your ears. Custom kick panels are usually built from fiberglass or molded plastic, and are available from some manufacturers .
Rear Speakers – Rear speakers should give a sense of space to the music, but not overpower the front speakers. You should be able to barely hear the rear speakers. Most high end systems don’t have rear speakers. Tweeters are not essential for the rear, a set of coaxials will work well for rear fill.
Center Channels – Center channels consist of a midrange speaker (3 or 4 inch) mounted in the middle of the dash (usually) on the top. Center channels play a mono (Left + Right) signal between 350 – 500 and 3500 Hertz (voice range). The need of the center channel is to raise the sound stage, by causing the sensation of the singers “being” in the front of the car, and not in the door panels. Center channels are hard to implement.
Sizes and Shapes
There are many speaker sizes ranging from 1-inch tweeters to 18-inch (or bigger) subwoofers. A smaller speaker will reproduce higher frequencies better than a bigger one.
Do round speakers sound superior than oval-shaped speakers (i.e. 6×9’s)? The answer is yes for most practical purposes. A round cone is more rigid than an oval-shaped one, so at higher levels, an oval-shaped speaker will distort more. The reason why there are oval-shaped speakers is because of rear deck space considerations by manufacturers. An advantage of a 6×9 speaker over a 6-inch speaker is that it has a bigger area, so it will move higher air volume, producing more bass.
Power Considerations
Most people think that if they use a 50 watt per channel amplifier on their factory speakers, the speakers will be damaged. This may be true if the speakers do not have crossovers blocking off frequencies speakers were not designed to play. What destroys speakers is distortion. A high power amplifier allows the volume in the system to be higher, while the volume control on the radio is down in the range where no distortion is present. It is better to have more power than what you need to get cleaner sound.
Small, efficient, smart and bright colored cars are the trend for 2010 in the automotive market. Automakers are focusing on small cars and as new models surge into the market, bright colors will blossom. Since car manufacturers are focusing on the small car line up, therefore to given them a jazzy and fiery appeal, bright colors are the order of the day. The experts also feel that if bright colors are put in large cars, it will be a little too much for the consumers; hence these colors are best suited for the small cars. When it comes to cars, colors matter a lot because it represents the personality of the person driving that car.
When the buyer visits any showroom, the first thing that attracts him is the color of the car and this is one of the main selling points of the car. The car aficionado feel that colors can bring the customers out of their recession-dull mood, therefore colors carry a lot of weight when it comes to make a purchase decision. People are now tried of black and grey and look for more vibrant colors in small cars like Chevrolet, A-Star, Hyundai i10 and many such names. The automotive color spectrum has been monotonous for many decades with only few colors hitting the car market including black, white and grey. Now even the eyes need a breather and for that vibrancy in looks can play a crucial role.
Jazzy and peppy colors are in these days as small cars represent the same. The new entrant in the small car segment, Maruti Suzuki A- Star is available in vibrant and peppy colors like bright red, paradise blue, sunlight copper, healing green, silky silver, desert brown, azure great, midnight black and arctic white. Why get a grey or white car when you can cruise in sunlight copper or electric blue instead? Dull and monotonous colors will not suit the small and zippy cars which are targeted at the youth. Let black, grey and white enhance the elegance, sophistication and exclusivity of the large or big cars. Small and vibrant is what people look for in todays time because of prices touching sky everywhere.
Reds, lime greens, orange, electric blue are in vogue in small car segment and this has increased the demand of thee cars among the youth. The color one chooses foe his small car is dictated by career choice, personality and popularity. For most of the people, car is more than just a utility item; therefore a lot of stress is there on the colors like yellow, green, red, blue, beige and white.
How old is your car? Some cars are just three years old yet look saggy some are ten but still groovy. Big deal right? It really is. Just when you think of selling it, the buyer gets disinterested because of corrosions, really in dilemma. Here are some tips before getting it listed in a cars classifieds or before having it sold in a car auction.
Cars are like humans. Actually they are extension of the owners themselves. Washing cars regularly, at least once a month brings back the exuding sensual image of the car. Bugs, limestone drippings when not removed might cause damage to the car leaving a permanent stain. Difference exist when washing a car and not. When it’s dirty, the moisture accumulates in dirty areas causing corrosion but when the car is clean, all the moisture dries up quickly.
Using a pressure wash once in a while removes the dirt from the parts that are difficult to reach. Holding out the pressure wash jet closely to the painted surface might peel the loose paint. Places like behind moldings, inside wheel arches, under the bumpers should be washed off. This is where the dirt and salt could be accumulated. The dirt in the wind shield must also be wiped and washed. Dirts accumulated in the windshield gets caught by the windshield wipers blades and scratches the windshield when the wipers are operating.
Drying the car is one of the most important process. The wrong method of drying can cause water spots, streaks and even scratches. This ultimately ruins the car. Although not everyone has this luxury of drying, the best method is to park it in a garage or shade. Most people recommend the use of a 100 percent cotton towels to dry up. Others would recommend chamois. However this may lead breakdown and leave residue on cars. Good thing, science is constantly doing innovation, the use of synthetic chamois is great and useful.
Same with how the car wash was done, using the chamois, start at the top and work way down. The flat surface must be first done before working on the sides and bumpers. Dry up under the door handles and under the side mirrors, these areas tend to hold water that will sneak up on you later. Next, grab a clean towel and open up all the doors and wipe down the door jambs, then do the same on the inside of the trunk and hood.
Just like men, grooming follows bathing. Waxing the car regularly helps. The wax protects the paint minimizing harm from chemicals. It also gives protection from fading out. The plus factor from this that it looks shiny. Waxing takes only about 30 minutes to wax a whole car. For high quality waxes this stays up to three to four months. Superb!
While the outside needs cleaning and so with its interior. The car accumulates dirts, dusts and rocks. The only way to get rid of the junks is to suck it up with a vacuum. With a slim nozzle attachment, this can reach even the smallest bit s between the seats and the hardest part to reach. Better to take out the mats. Shaking them up and vacuuming removes the old dirts sticked on it.
Get the dash and board cleaned up, from the top down to the center console. Wipe down the door sills, the rear deck and the plastic parts between the front and rear seats on four-door cars, after you have cleaned these areas, it’s time to apply some vinyl protectant. This maintains the vinyl by replenishing the oils and provides protection from harmful UV rays when parked outside. Lastly, clean the interior windows.
Once both the inside and out is clean, the result would be a shiny, and lustrous car. There is no reason why one should be shy to list it on car classifieds or car listings. If a buyer sees how good looking the car is, the deal is close. It would be difficult then to determine which is which? Is it under used cars or new cars?