Sworkit ~What is Sworkit? Sworkit works on a computer, iPhone or Android and functions kind of like an iPod shuffle for exercise. You choose your workout time (up to one hour) and goal (back, core strength, full body, etc.). Sworkit then generates a series of randomized 30-second routines (none of which require equipment) for you to follow, along with handy pictures of what each task actually looks like. At the end of every 30 seconds, a whistle blows and you’re on to the next exercise.
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MRI scans of the quadriceps of a 40-year-old triathlete, a 74-year-old sedentary man, and a 70-year-old triathlete showing the effects of exercise on muscle and bone tissue. From the study—"This study contradicts the common observation that muscle mass and strength decline as a function of aging alone. Instead, these declines may signal the effect of chronic disuse rather than muscle aging."
Fitness Certification and Education: The American Council on Exercise (ACE), a non-profit organization, promotes active lifestyles by setting certification and education standards for personal trainers and group fitness instructors. ACE protects the consumer from ineffective fitness products, programs and trends through public education.