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Natural Pine Bark Extract Relieves Muscle Cramp And Pain In Athletes And Diabetics
18 Jun 2006
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A study published in this month's issue of Angiology shows that supplementation with the pine bark extract Pycnogenol® (pic-noj-en-all) improves blood flow to the muscles which speeds recovery after physical exercise. The study of 113 participants demonstrated that Pycnogenol significantly reduces muscular pain and cramps in athletes and healthy, normal individuals.
"With the millions of athletes worldwide, this truly is a profound breakthrough and extremely significant for all individuals interested in muscle cramp and pain relief with a natural approach. These findings indicate that Pycnogenol can play an important role in sports by improving blood flow to the muscles and hastening post-exercise recovery," said Dr. Peter Rohdewald, a lead researcher of the study.
Researchers at L'Aquila University in Italy and at the University of Würzburg in Germany studied the effects of Pycnogenol on venous disorders and cramping in two separate studies.
The first study consisted of 66 participants who had experienced normal cramping at some point, had venous insufficiency, or were athletes who suffer from exercise-induced cramping. The first two weeks of the study was an observation period and participants did not supplement with Pycnogenol. Symptoms related to venous disorders, and the number of cramping episodes each participant experienced over the two observation weeks was recorded.
Next, all the participants were given 200 mg of Pycnogenol once a day for four weeks. After the treatment phase, participants' symptoms and cramping episodes were recorded for one week without any Pycnogenol supplementation.
The researchers found a significant decrease in the number of cramps the participants experienced while supplementing with Pycnogenol. Participants who had experienced normal cramping had a 25 percent reduction in the number of cramps experienced while taking Pycnogenol.
Participants with venous insufficiency experienced a 40 percent reduction in the number of cramps, and athletes with frequent cramping experienced a 13 percent reduction in the number of cramps while on Pycnogenol.
The second study involved 47 participants with diabetic microangiopathy (a disorder of the smallest veins commonly associated with diabetes), or intermittent claudication (a blood vessel disease that causes the legs to easily cramp).This study also used a two-week pre-trial observation period followed by a week of supplementing with Pycnogenol (200 mg per day for one week), followed by a week of observation without Pycnogenol supplementation.
Patients with diabetic microangiopathy had a 20.8 percent reduction in pain, while participants with claudication experienced a 21 percent decrease in the amount of pain experienced while supplementing with Pycnogenol. Results indicated participants who took placebo experienced no decrease in pain.
Cramps are a common problem for people of all ages, ranging to the extreme fit and healthy to people who suffer from health problems. Previously, magnesium was hailed as the natural approach for relieving muscle cramps, however studies continue to show magnesium to be inefficient for reducing muscle cramps.
"Pycnogenol improves the blood supply to muscle tissue creating a relief effect on muscle cramping and pain. Poor circulation in the muscle is known to cause cramps and Pycnogenol improved the cramping in patients due to a stimulation of blood flow to their muscle tissue. Nitric oxide (NO) a blood gas, is well known to enhance blood flow and Pycnogenol may be influencing the activity of NO," said Rohdewald. "The insufficient production of NO is the common denominator responsible for impaired blood flow in vascular disease."
Strenuous exercise is known to involve muscle damage which may be followed by symptoms of inflammation. In separate studies published this year and in 2004 and 2005, Pycnogenol demonstrated its anti-inflammatory effects in clinical trials for asthma, dysmenorrhea and osteoarthritis.
Cramps and muscular pain: prevention with pycnogenol in normal subjects, venous patients, athletes, claudicants and in diabetic microangiopathy. Angiology. 2006 May-Jun;57(3):331-9.
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The aim of this study was to assess the preventive action of Pycnogenol (Horphag Research Ltd, UK) on cramps and muscular pain in different groups of subjects and patients. The study included a 5-week observation period (4 weeks treatment and one follow-up week after the suspension of treatment) to evaluate the efficacy of Pycnogenol after its withdrawal. Four 50 mg capsules (total dose 200 mg/day) were prescribed with suggestion to drink at least 1.5 liters of water every day. In the first part of the study 66 healthy subjects completed a 5-week follow-up period. The difference between number of cramps attacks recorded within the 2 weeks before inclusion and the number of episodes during the fourth (p <0.05) and fifth (p <0.05) week were statistically significant. In normal subjects the average number of episodes was reduced from 4.8 (1.2) events per week to 1.3 (1.1) at 4 weeks (p <0.05). In venous patients the decrease in events was from 6.3 (1.1) to 2.6 (0.4) per week (p <0.05). In athletes the number of episodes decreased from 8.6 (2) to 2.4 (0.5) (p <0.05). The decrease was still present at 5 weeks in the 3 groups, to levels significantly lower than inclusion values (p <0.05). In the second part of the study, patients with intermittent claudication and diabetic microangiopathy were evaluated and treated (4 weeks). The groups treated with Pycnogenol and the control, placebo groups were comparable. There was a significant decrease in the number of cramps episodes (p <0.05) and in the score concerning muscular pain (p <0.05) in claudicants and diabetics. No significant effects were observed in the placebo groups. In conclusion, cramps and muscular pain, common in these 2 types of patients, were decreased by the use of Pycnogenol. Globally, these results suggest that the use of Pycnogenol prevents cramps, muscular pain at rest, and pain after/during exercise in normals, in athletes prone to cramps, in patients with venous disease, in claudicants, and in diabetics with microangiopathy. The difference is statistically significant considering objective observations (cramps episodes) and evaluating more subjective aspects (score). This indicates that Pycnogenol is effective in reducing pain and cramps during retraining and rehabilitation increasing its efficiency. In starting any physical rehabilitation program, particularly in vascular subjects, the limitation in mobility associated with muscular pain and with cramps tends to be relevant, and controlling these symptoms is useful to speed up the retraining process.
Pine Bark Extract for Muscle Cramp In Athletes And Diabetics
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