Keeping count of repetitions in any sporting endeavor is surprisingly challenging, be it push-ups, wind sprints, or golf shots. Trying to keep count with water between your ears leaves many swimmers pruning in the wet stuff longer than necessary. The brand new Pool-Mate watch is the first automatic lap counter, promising to help the swimming world count to ten.

Thanks to technology, your heart rate, sweat rate, calories burned, stride length, and whether you're wearing boxers or briefs can all be calculated in real time, wirelessly transmitted to a laptop, and posted to Twitter before you return home from your weekend jog. Engineers in Germany are hoping to add blood lactate levels to the abundance of fitness data using a miniature ear clip containing an electrochemical sensor.

Running shoes for real runners are regularly categorized into two types: stability shoes, for those who over-pronate, and cushioning shoes, for those who don't. Nike's LunarGlide+, available July 1 for $100, claims a novel mid-sole architecture described as "Dynamic Support," which eliminates the need to choose between the two types. But more impressive than that assertion is the simplicity of the design by which Nike hopes to revolutionize the industry.

How much is 0.17 cubic inches worth to you? If your name is Carl Long, the answer is: much more than $200,000. That’s the monetary fine (the largest in NASCAR history) that Long received last week for running with an engine that was 358.17 cubic inches in volume, just 0.17 inches above the NASCAR limit. For Long, who was in 63rd place before the suspension, the fine is just the beginning.

How fast does Michael Phelps’ heart beat under water? In the past, Phelps would have had to check by stopping mid-stroke and checking a small screen on his wristwatch. But with the launch of the AquaPulse from Finis, Phelps can receive real-time audible heart rate updates, without coming up for air.

An investigative report, dramatically titled “Danger in the Air,” by the ESPN news program E:60 suggests that exhaust from ice resurfacing machines is putting skaters around the country at serious risk. The report faults improper ventilation or unmaintained resurfacing machines, which often run on propane or natural gas, for the hazards to skaters.

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There’s an old fashioned brawl brewing in the sports drink industry. The undisputed champion, Gatorade, has filed a lawsuit accusing its perennial challenger, Powerade, of “knowingly misleading consumers and deceptively overstating the product benefits of its sports drink Powerade ION4.” The lawsuit is in response to a rash of bold Powerade ads which claim ION4 is an “upgrade” from Gatorade because the Powerade drink contains four electrolytic ingredients, whereas Gatorade contains only two, thus making Powerade a more “complete” drink.