To chisel your abs and strengthen your core, add some dumbbells to your core workout. Adding some weight forces the fibers in ab muscles to activate more fully, making each rep more effective. This ...

Incorporating SIT sessions into your fitness routine can help boost your cardiovascular health and athletic ability. Emilija Manevska via Getty Images If you’ve dabbled in fitness in recent years, you ...

To build strong abs, try a double to single leg v-sit, says celebrity personal trainer Nadya Fairweather (u-shape.co.uk). Starting on your back, lift your head and feet off the ground about an inch.

As HIIT's popularity soars, sprint interval training, or SIT, is doing its best to catch up. Can shorter, harder, faster deliver better results? As the popularity of HIIT continues to soar, sprint ...

For those who live to sweat — but maybe want a chance to fully catch their breath — SIT is the new HIIT. HIIT, or high-intensity interval training, includes bursts (typically 30 seconds to a few ...

Fitness experts are now advising against doing too many sit-ups for risk of back injury. According to the Wall Street Journal, Stuart McGill, a professor of spine biomechanics at the University of ...