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Black Diamond Anodized QuickSilver 2 Carabiner
Gloriously strong and suited to any use, the legendary Anodized Quicksilver2 proudly displays its divots from being tested to 12 kN. Every Black Diamond carabiner is pull-tested to half its rated strength before it leaves the manufacturing floor. Considered a classic in terms of function and design elegance, the Quicksilver has now added value to the formula. This closed-back carabiner has a streamlined body and an angled nose for easy clipping, and a wide rope-bearing surface that allows rope to travel smoothly through the biners. A high strength rating and relatively low weight top it off, making the Quicksilver2 irresistible to the value-conscious climber. -Vendor
$5.90 
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Training Tips
Heart monitors are useful for knowing when you are in the right zone for your training efforts. If you understand what your maximum heart rate is, you can set up your monitor to beep at you when you exceed the high or low range of your heart rate for the type of workout you are doing.
Cross training gives your body a chance to recover while still exercising. If yesterday has a hard run day up and down hills, then today's bicycle ride gives your aching knees a well deserved break.
Anaeroic threshold is when lactic acid starts to build up in your body as your muscles are not getting the oxygen they require. This threshold is typically expressed as a percentage of your VO2 max - the amount of oxygen per kilogram of weight that a person can use in converting fuel to energy. Elite athletes threshold might be as high as 90% of VO2 max.
Efficient running position allows you to run farther and faster. Keep the heel raise to a minimum, relax your upper body and hands, keep your upper body poised and quiet.
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