Most Popular in:
New in Physiology (page 63 of 73)
The changing of the season brings cooler weather, shorter days and more people heading to health clubs for a healthy dose of indoor exercise. While experts agree that exercise is one of the most beneficial activities a person can do to improve one’s overall health, dermatologists want gym-goers to be aware of the hidden dangers of exercise–bothersome skin conditions that can be painful and inhibit further physical activity if left untreated.
In recognition of National Healthy Skin Month, dermatologist Brian B. Adams, MD, MPH, FAAD, associate professor of dermatology at the University of Cincinnati and director of dermatology at the Veterans Administration Medical Center, both in Cincinnati, Ohio, spoke at the American Academy of Dermatology’s (Academy) SKIN Academy on the most common skin conditions to which people who engage in regular indoor exercise are susceptible and how to treat them.
“Despite its positive effect on a person’s physical and psychological health, regular exercise does not necessarily improve our skin health and may in fact lead to a rash of skin conditions that require treatment,” said Adams. “While exercising indoors eliminates the threat of skin cancer and sun damage, it is important for people who frequent health clubs to be aware of the risks to their skin as well.”
Blisters form when friction between an area of the body and athletic equipment causes a splitting of the top layer of skin, allowing fluid build-up. Runners and those who routinely lift weights often develop blisters. Adams suggests that the key to preventing blisters is to reduce friction by creating more distance from the equipment to the skin.
“Wearing moisture-wicking socks, applying a thin layer of petroleum jelly between the sock and the shoe, and using gloves to lift weights can help prevent blisters from forming,” said Adams. “Also, there is no better dressing for blisters than your own skin, so you should not peel off the top layer of a blister. If it comes off, keep the blister covered with petroleum jelly and a bandage.”
While blisters normally do not become infected, Adams cautioned that redness appearing on the skin in the vicinity of the blister could indicate an infection and should be treated by a dermatologist.
Unfortunately, health clubs are breeding grounds for all kinds of fungus–from swimming pool floors and diving boards to showers and locker rooms. The most common contagious fungal infection that exercise enthusiasts are prone to developing is tinea pedis, or athlete’s foot. This fungus grows best in dark, moist and warm environments, making sweaty feet tucked inside running shoes perfect targets.
Perhaps the most bothersome symptom of athlete’s foot is the itching and burning sensation people feel on their feet. In some individuals, the skin between the toes peels, cracks and scales, while others may experience redness, scaling or dryness on the soles and along the sides of the feet. Some people who develop athlete’s foot also may be at risk for toenail fungus, which can be difficult to treat without dermatologic care.
“The best defense against athlete’s foot is to never go barefoot in a health club,” advised Adams. “Wear shoes, socks, sandals or aquatic shoes at all times.”
Adams added that most cases of athlete’s foot respond well to over-the-counter medications, but persistent or recurring infections will require prescription-strength medications from a dermatologist.
Regular exercisers also may be susceptible to acne mechanica, a form of acne that can occur under athletic equipment or tight-fitting clothing. Acne mechanica typically develops in warm, moist environments–especially areas prone to friction. Wearing tight-fitting exercise shorts made of non-breathable fabrics can even cause an acne flare-up on the buttocks.
“Changing your workout attire by eliminating tight-fighting clothing and adding more breathable, moisture-wicking fabrics can help prevent acne mechanica,” said Adams. “If these preventive measures are not working, your dermatologist can prescribe prescription medications that are effective in treating this type of acne.”
Originally termed for outdoor athletes, turf burns (or road rash) are nasty abrasions that can occur on an area of the body–usually the arms or legs–if athletic padding is not used. Most cases of indoor turf burns are caused by sliding on the basketball court or from constant contact with exercise mats or carpet.
“For the quickest healing and to avoid scarring, turf burns need to be cleaned and covered with petroleum jelly and a bandage,” said Adams. “If there are any signs of an infection or it doesn’t seem to be healing properly, see your dermatologist.”
Indoor Tanning: Take a Pass
Unfortunately, not everything in a health club is “healthy.” Perhaps the biggest health threat is indoor tanning devices, which are still offered at some health clubs across the country despite their link to skin cancer. Ultraviolet light, whether from natural sunlight or artificial light sources, increases a person’s risk of developing skin cancer.
In September 2007, President Bush signed the Tanning Accountability and Notification Act (TAN Act) into law, which calls for the U.S. Food and Drug Administration to determine if the current language and positioning of warning labels on indoor tanning devices is adequate to effectively warn consumers of the known dangers of indoor tanning–including the risk of skin cancer.
“As dermatologists, we see the serious health consequences skin cancer poses for patients every day,” said Adams. “There is absolutely nothing healthy about indoor tanning that should allow it to be offered to health club patrons, who are in some cases being misled to think that this form of UV-exposure is safe and that a tan is somehow healthy. Hopefully this new law will force health clubs to re-examine their choice about offering a disservice like indoor tanning to their patrons.”
In addition, Adams offered these sun-safety tips for outdoor fitness buffs:
* If possible, seek shade between 10 a.m. and 4 p.m. when UV rays are the strongest.
* Runners and those engaging in other outdoor sports should wear broad-spectrum sunscreen with an SPF of 15 or higher and reapply frequently when sweating. Stash sunscreen in your pockets as a reminder to reapply and wear dark-colored clothing which has built-in SPF, if possible. Hats should always be worn, and men should never run with their shirts off.
* Skiers should be aware that snow is 80% reflective, even in shaded areas, and skiers are more likely to burn at higher altitudes.
* “Being aware of the skin problems that can arise from indoor or outdoor exercise is a crucial first step in keeping your skin healthy and getting the most out of your workouts,” said Adams. “If you have a concern about your skin, whether or not it’s related to exercise, it’s important to see a dermatologist for diagnosis and treatment.”
Researchers now believe they have found a key mechanism that drives rosacea.
Experts now believe that a lifetime of overeating sugar can make skin dull and wrinkled.
A team at Procter & Gamble Beauty sequenced the genome of Malassezia globosa, a fungus that grows on the skin of between 50-90% of the population.
Scientists have discovered that an extract of broccoli sprouts protects the skin against the sun's harmful ultraviolet rays.
The Fitzpatrick Skin Type Classification system was developed in 1975 by Harvard Medical School dermatologist Thomas Fitzpatrick, MD, PhD.
In particular, women experience acne at higher rates than their male counterparts across all age groups 20 years and older.
An experimental drug called STA-4783 may prove an effective new treatment for skin cancer, according to research presented Wednesday at a meeting of the European Cancer Organization in Barcelona, Spain.
The drug causes tumor cells to self-destruct by overloading them with oxygen. A study of 81 patients with advanced melanoma skin cancer found that the 28 who received the standard chemotherapy drug paclitaxel went an average of 1.8 months before their cancer worsened. The 53 patients who received paclitaxel plus STA-4783 went an average of 3.7 months before their cancer worsened, the Associated Press reported.
The study also found that patients who received the combination therapy survived an average of one year after diagnosis, compared with an average of 7.8 months for those who received only paclitaxel. The study was paid for by Synta Pharmaceuticals Corp. of Lexington, Mass., which developed STA-4783.
The new drug, which has no effect on normal cells, may also prove effective against other cancers, the AP reported.
HealthDay News, September 26, 2007
By Steve Herman
Beyond the well-known ravagers of youthful-looking skin, sugar and the chemical reactions that produce sugar in our cells conspire against eternal youth.
Female smokers may be much more likely to develop non-inflammatory acne (NIA) than women who don't smoke, says an Italian study in the British Journal of Dermatology.
Researchers looked at more than 1,000 women and found that 40 percent of those who smoked had NIA, compared with 10 percent of nonsmokers. Blocked pores, large white heads and small cysts are characteristic of NIA, BBC News reported.
The team at the San Gallicano Dermatological Institute in Rome said they conducted the study in women because the condition seems to be more prevalent in women than in men. Compared to nonsmokers, smokers in the study had half the levels of skin secretions of vitamin E and had other skin-related variations. The study also found that smokers who had acne in their teens were four times more likely to suffer NIA than nonsmokers who experienced teen acne.
The findings add to previous research that links smoking with acne, Colin Holden, president of the British Association of Dermatologists, told BBC News.
HealthDay News, September 18, 2007