To add or subtract weight, you simply put the dumbbells in the included tray, turn the dial to your preferred pounds, and slide the weight plates on or off. The weights left on the bar lock into place ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Seth Berkman Seth Berkman is a fitness writer. He incorporates testing into ...

Gone are the days when aspiring athletes had to choose whether they wanted to pound the pavements or lift weights in the gym. Studies have repeatedly shown the two can work symbiotically to form a ...

Meredith Dietz is Lifehacker’s Senior Staff Writer. She earned her bachelor’s degree in English and Communications from Northeastern University, where she graduated as valedictorian of her college.