By Dr. Stacey
Cycle Safely!
With June being Bike Safety Month, I thought I would offer a few tips on how to prevent some of the most common cycling injuries…
Start with Good Cycling Posture
Good cycling posture is very different from good posture while sitting or standing. A posture that is comfortable for sitting still will not necessarily be comfortable while actually riding a bicycle. Correct cycling posture must facilitate the pedaling action, and also must enable the rider to cope with the jolts that result from road irregularities.
Many inexperienced cyclists adopt a posture that allows their upper bodies to be supported entirely by their skeleton. This has the advantage that it requires no muscular effort, but can lead to discomfort or injury when road shocks are transmitted through the rigid bones. This discomfort may affect the back, hands, wrists, shoulders or neck.
Posture faults are primarily found in three places:
The back should be arched, like a bridge, not drooping forward between the hips and the shoulders. If the back is properly arched, spinous processes (SP’s) – the bumps you feel down your back – will cause it to flex slightly in the direction of a bit more arch; this is harmless. If you ride swaybacked, the SP’s will cause the back to bow even farther in the forward direction, which can lead to severe lumbar pain, or even serious injury.
Some back-pain sufferers modify their bicycles with extra-high handlebars so that they can sit bolt upright, with their spines straight. This is actually counterproductive in most cases, because a straight spine has no way to “give” when the bike hits rough road. Road irregularities will jam the vertebrae together, often aggravating existing back problems. The bolt-upright posture is comfortable if you’re sitting stationary on the bike, but is not suitable for riding much faster than a brisk walk. Riders who require such a position should use some form of suspension, a sprung saddle at the very least.
The elbows should be slightly bent, not straight and locked. This allows the arm muscles to act as shock absorbers.
The shoulders should be pushed forward so that the muscles in the front of the chest help carry the weight of the upper body. Many cyclists make the error of letting their upper spine dangle forward, held up by the collarbones. Rolling the shoulders forward counteracts the bending of the arms, resulting in the same general angle of the upper body as a relaxed, bone-supported posture provides, but with the resiliency of muscles providing shock absorption.
If you’ve been letting your bones do all the work, you’ll find that the muscle-supported posture is tiring at first. The harder you pedal, the more of your upper-body weight will be supported by the reaction forces to the pedaling. If you’re not used to riding this way, you’ll find that you can only sustain the muscle-supported posture for a few miles. When you tire, you’ll revert to a bone-supported posture, and problems will ensue. The answer to this is to start with rather short distances and only gradually work up to longer ones. It is true that anybody in normal health can ride a bicycle for 10 miles, but someone who is not accustomed to riding with good posture will find such a ride uncomfortable. It is better to start out with 2- or 3-mile rides and gradually increase the distance. Your ability to adopt a good posture on a given bicycle will depend on correct fitting/adjustment of the bicycle.
Occasionally, neck trouble is due to poor adjustment of a helmet, specifically, a helmet which is too far forward on the head. If the helmet is too low in front, the rider is forced to tilt the head upward to keep the helmet from blocking the view forward (poorly fitting eyeglasses that slip down your nose will also cause this problem). Sharp backward bends in the neck can cause severe problems, so make sure that your helmet is properly fitted for your riding style. Riders with a more aggressive riding position need to wear their helmets farther back than those who sit more upright.
Some Common Cycling Injuries
Wrist pain is often caused by poor upper body posture. It can also be caused by having the saddle angle too low in front: This tends to make you slide forward as you ride, and you wind up using your hands to push yourself back into position.
If the skin of your hands gets sore, cycling gloves can help a great deal. If you ride bare handed, sweat may make your hands slippery, and this can lead you to grip the bars too tightly.
Numbness of the fingers is a potentially dangerous symptom, often related to carpal tunnel syndrome. Like your bottom, the heel of your hand has two bumps, with a sort of valley between. There are important nerves that run through this valley, and it is important to avoid excessive pressure here.One common cause of excess pressure on this “valley” is riding on the top corners of drop bars in such a way that the bar presses here. If you use thick foam handlebar grips, and/or gloves with too much foam/gel padding, the “bumps” that are best able to carry weight will press through the foam, but the foam in the middle will press back at the valley. Thus, as with saddles, too much foam/gel can worsen the problem it was intended to correct!
Numbness of the hands can also be related to poor wrist positioning. Generally, the wrist should be held so that the hand is pretty much in line with the forearm. If your hand is bent upward from the forearm, the nerves can get pinched, causing numbness.
Cyclists who do longer rides in hot weather are at risk for painful chafing on the inner thighs. This is usually the result of an inappropriate saddle. A saddle that is too wide will chafe, and saddles with excessive foam/gel are also likely to cause this sort of problem. The best saddles for preventing chafing are traditional leather saddles. Wearing proper cycling shorts will help, but beware shorts with excessive padding, which can make it worse. Many cyclists find relief by generous application of cornstarch before longer rides.
Cycling, done properly, is much less stressful to the knees than many other aerobic activities, since there’s no impact involved. Nevertheless, knee injuries do occur, usually as a result of poor technique or position. A principal cause of knee problems is over-stress as the result of using too high a gear.
Another common cause of knee problems is incorrect saddle adjustment, particularly if the saddle is too low.
Some knee problems result from incorrect placement of shoe cleats. Everybody has a natural angle that each of their feet prefers to be at; when you walk or ride with plain pedals, your foot assumes this angle, and everything is fine. If you use cleated shoes and matching pedals, it is important that the cleat is adjusted so as to permit your foot to be at its natural angle. If your cleats are misadjusted, the resulting twist on your lower leg will affect the alignment of the knee joint, and cause serious problems. This is less of an issue if you ride pedals with “float” (limited rotational freedom) in the cleat attachment. Most of the newer clipless pedals offer at least some float.
Also, the longer your cranks are, the farther your knees will have to flex on each stroke. Different riders will have different amounts of flexibility in this regard, but riding with longer cranks than you are used to may definitely cause knee problems.
If you have pain in the Achilles tendons, it usually indicates a problem in pedaling technique. Achilles tendon problems often result from “ankling” (having your cleats set too far forward or otherwise pedaling with the toes) during the pedal stroke. This is occasionally related to having the saddle set too high, forcing the cyclist to point the toes excessively to reach the bottom of the pedal swing.
Ankle pain while cycling may also result from being flat-footed, in which case orthotic shoe inserts are a good remedy. Another possible cause of ankle pain is a bent pedal or crank, causing the foot to wobble back and forth as the pedals turn.
Foot discomfort is often the result of inappropriate footwear, specifically shoes with soft soles that concentrate the pedal pressure on isolated parts of the foot. It can also be related to riding in a gear that’s too high, which results in more pressure of the foot against the pedal.
Some cyclists are hypersensitive to having their feet overheat while riding. An excellent solution to this is to wear cycling sandals. Cycling sandals are a fairly new development, and most people’s initial reaction to them is “what a goofy idea.” In practice, however, they are very comfortable in warm weather. For longer rides with sandals, you should wear socks to protect against chafing.
Chiropractic Care Can Help…
If you follow these simple tips, you can enjoy safe, pain-free cycling. If you do experience pain and stress, Doctors of Chiropractic are trained and licensed to diagnose and treat problems of the spine and nervous system.
For more tips and/or information on preventing and treating cycling injuries, contact Dr. Stacey Rosenberg at Gibsons Chiropractic (604) 886-7080 or your local family chiropractor.