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Written by SuperHuman
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Monday, 31 March 2008 |
Scientists often present the latest scientific information at professional meetings, well before they’re published in medical journals. Here are a few pearls from the International Society of Sports Nutrition Meeting held in Las Vegas.
• A substance isolated from whey protein promoted recovery after intense eccentric (negatives) exercise and prevented muscle damage during intense endurance training.
• Long-distance runners given L-carnitine supplements increased blood hemoglobin and maximal oxygen consumption— the best measure of cardiovascular fitness.
• Creatine monohydrate by itself was just as effective as various creatine compounds for building strength and power. Moral of the story: stick with the basics.
• Supplementing the diet with beta-alanine and histidine for one month increased isometric endurance capacity of the thigh muscles. Training enhanced the effectiveness of the supplement. The supplement appears to work by increasing carnosine levels, which is an important acid buffer.
• Consuming more than 1.5 grams of protein per kilogram bodyweight depressed blood osteocalcin, which is important for bone health.
• Arachidonic acid supplements plus weight training promoted strength and power.
• Melatonin supplements increased blood growth hormone levels, particularly when combined with weight training.
• Yohimbine supplements contributed to weight loss in elite soccer players.
• Branched-chain amino acid supplements reduced cortisol levels during intense endurance exercise. Cortisol is a catabolic hormone that prevents muscle growth.
• Caloric restriction had minimal effects on thyroid hormones.
• A weight-loss product called Energize increased metabolic rate above normal resting levels for at least two hours.
(Journal International Society Sports Nutrition, 3: 1-29, 2006)
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