Seconds Pro Interval Timer App for Triathletes and Runners

Whether its swim, bike or run, training comes down to doing intervals, a lot of intervals. Below is a typical bike trainer assignment from my coach, Jamie Church. “After a nice and relaxed warm up of at least 10 minutes, do 4 x 2:00 Zone 5/Hard intervals with a full 2:00 easy recovery b/w intervals. …

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