The Bowflex SelectTech 552 Adjustable Dumbbells ... Now, pick up a pair while you can still get them on sale, and get ready to bicep curl your way into the new year. If you enjoyed this story ...
“Secondly, the trick to grow any muscle is to hit it from all angles. That’s why people who only perform biceps curls struggle to pack on mass. Then, thirdly, applying the principles of ...