ya 60, 120s....work good....sprint for 60 seconds or from like 1 telephone pole to another then jog slowly like 9min pace....for 120 seconds or 2 telephone poles....
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"....and when you men get home and face an anti-war protester, look him in the eyes and shake his hand. Then, wink at his girlfriend, because she knows she's dating a pussy."
-General Franks
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