Showing posts with label effects. Show all posts
Showing posts with label effects. Show all posts

Wednesday, January 7, 2009

Massaging Muscles Facilitates Recovery After Exercise

Researchers testing the long-held theory that therapeutic massage can speed recovery after a sports injury have found early scientific evidence of the healing effects of massage.

The scientists have determined that immediate cyclic compression of muscles after intense exercise reduced swelling and muscle damage in a study using animals.

Though they say it’s too soon to apply the results directly to humans in a clinical environment, the researchers consider the findings a strong start toward scientific confirmation of massage’s benefits to athletes after intense eccentric exercise, when muscles contract and lengthen at the same time.

“There is potential that this continuing research will have huge clinical implications,” said Thomas Best, a professor of family medicine at Ohio State University and senior author of the study. “If we can define the mechanism for recovery, the translation of these findings to the clinic will dictate how much massage is needed, for how long, and when it should be performed after exercise.”

Anecdotal evidence suggests massage offers many health benefits, but actual testing of its effects at the cellular level is more difficult than one might think. In this study with rabbits, the researchers used one mechanical device to mimic movements associated with a specific kind of exercise, and a second device to follow the exercise with a simulated consistent massaging motion on the affected muscles. They compared these animals to other animals that performed the exercise movements but did not receive simulated massage. All animals were sedated during the experiments.

“We tried to mimic Swedish massage because anecdotally, it’s the most popular technique used by athletes,” said Best, who is also co-medical director of the OSU Sports Medicine Center and a team physician for the Department of Athletics. “A review of the research in this area shows that despite the existing anecdotal evidence – we know athletes use massage all the time – researchers don’t know the mechanism of how massage improves recovery after exercise and injury.”

Swedish massage combines long strokes, kneading and friction techniques on muscles and various movements of joints, according to the American Massage Therapy Association.

After the experimental exercise and massage were performed in the study, the researchers compared the muscle tissues of all of the animals, finding that the muscles in animals receiving simulated massage had improved function, less swelling and fewer signs of inflammation than did muscles in the animals that received no massage treatment after exercise.

The research is published in a recent issue of the journal Medicine & Science in Sports & Exercise.

The research focused on eccentric exercise, which creates a motion similar to the way in which quadriceps in human thighs are exercised during a downhill run. In the study, the scientists focused on the tibialis anterior muscle, located on the front of the shin in humans. The simulated exercise involved continuous flexing and pointing of the toes to exert the muscle during seven sets of 10 cycles, with two minutes of rest between each set.

“It’s hard to describe exactly how the exercise intensity would be matched in a human, but this was considered a significant amount of exercise that would likely cause muscle soreness and possible damage,” Best said.

Immediately following the exercise, the affected muscle was subjected to 30 minutes of simulated massage, called compressive loading. The researchers used mathematical equations to determine the appropriate amount of force to apply to the animal muscle, which was intended to match the force Swedish massage typically places on a patient’s spine. The device used to simulate the stroking motion for the research was designed by Yi Zhao, assistant professor of biomedical engineering at Ohio State and a co-author of the study.

“We know biological tissues are sensitive to the magnitude of frequency, duration and load, so we controlled the force, frequency and time spent on massage,” Best said.

The exercise-massage cycle was repeated for four days, after which the animals’ muscle strength and tissue were examined.

The massaged muscles recovered an estimated 60 percent of the strength after the four-day trial, compared to restoration of about 14 percent of strength in muscles that were exercised and then rested.

Similarly, the massaged muscles had fewer damaged muscle fibers and virtually no sign of white blood cells, the presence of which would indicate that the body was working to repair muscle damage, when compared with the rested muscles. The massaged muscles weighed about 8 percent less than the rested muscles, suggesting that the massage helped prevent swelling, Best said.

“One fundamental question is how much of a role does inflammation play in repair to a muscle? Are we preventing inflammation and therefore improving recovery? We haven’t proven that yet,” Best said.

He is collaborating with a variety of experts across the university to continue this line of research, and hopes to cooperate with Ohio State’s Center for Integrative Medicine on future clinic-based work.

“Our goal is to use this model to understand the biological mechanisms of massage as a guide to preclinical trials to test the effects of massage on muscle recovery after exercise,” he said. “A trial in humans could look at optimal indications for massage.

"Ultimately, we could also find out how massage helps not just exercise-induced muscle injury, but swelling and pain associated with other medical conditions, as well.”

Additional co-authors on the study were Timothy Butterfield, a former postdoctoral researcher at Ohio State now with the University of Kentucky Department of Rehabilitation Sciences; Sudha Agarwal of the Ohio State College of Dentistry’s Section of Oral Biology; and Furqan Haq of Ohio State’s Division of Sports Medicine in the Department of Family Medicine.

The research was funded by the National Institutes of Health and the Ohio State University Pomerene Chair in Family Medicine, held by Best.

http://www.sciencedaily.com/





Monday, September 8, 2008

Aromatherapy for relaxation

Make a little space in your day to relax with soothing essential oils away from the stresses and strains of your hectic schedule.

Aromatherapy essential oils have powerful effects on your moods, as the part of the brain that detects smell messages from the nose (olfactory bulbs) is closely linked with your emotional centre in a part of the brain called the limbic system. Oils are also absorbed from the skin into the circulation and can have powerful effects on the body. Even Hippocrates, the Greek father of medicine, recommended the use of aromatic essential oils for their relaxing properties.

Some essential oils are so relaxing that they help to promote sleep, especially geranium, juniper, lavender, neroli, lemongrass, sandalwood and ylang ylang. Try sprinkling a few drops of your chosen oil(s) on a cotton-wool pad or hanky and tucking it under your pillow. Alternatively, scent your bedroom with an oil using a burner. However, the oils need to be varied every four or five days to maintain their beneficial effect, as your body and brain start to adapt to them.

Ways to use them effectively
Aromatherapy essential oils may be inhaled, massaged into the skin, added to bath water, or heated in a variety of ways to perfume the atmosphere. Oils that come into contact with skin should always be diluted with a carrier oil (eg, almond, avocado, jojoba, sunflower, wheatgerm oils). Dilution is important, as oils that are too concentrated may have an adverse effect or cause skin irritation.
Where possible, use natural rather than synthetic essential oils, as these have a greater therapeutic benefit. Similarly, 100% pure essential oils are preferable, as they are not mixed with alcohol or other additives.

Essential oils that help to relax the body and mind to relieve stress include:
Cedarwood
Chamomile roman
Clary sage
Geranium
Grapefruit
Jasmine
Lavender
Lemongrass
Neroli
Orange
Rose
Rosewood
Sandalwood
Vanilla
Vetiver
Ylang ylang

When making up a blend, choose oils whose aromas you like and experiment with different quantities of each. If a blend isn't quite to your liking, add more drops of one or more of the oils – or introduce another that you feel is missing. Keep a note of the total number of drops used so that you can ensure it is correctly diluted by adding extra carrier oil. Altogether, every five drops of essential oil should be balanced with 10ml of carrier oil.

Enjoy an aromatic bath
Aromatherapy is wonderfully relaxing when used in the bath. Choose a single favourite sensual oil, or a blend of up to three. Add five drops of essential oil to a tablespoon (30ml) carrier oil (eg almond, avocado) and mix. Draw your bath so that it is comfortably hot, but don't add the aromatic oil mix until the taps are turned off. Close the bathroom door to keep in the vapours and soak for 15–20 minutes, preferably in candlelight.

After cleansing your body, you can also dip a wet sponge in the oil mix and use it to gently massage your whole body before rinsing. Lie back comfortably, and close your eyes. Allow the scent to fill your entire body and imagine it coursing through your veins, bringing relaxation and a renewed sense of energy.

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