When you do pullovers with a band, the band keeps adding tension throughout the range while the resistance from gravity diminishes as the lever arm shortens. All told, this causes your muscles to have to work harder for longer. That means more muscle growth.
related posts
21 Days to a Bigger Back
Doing a back workout once a week isn't going to cut it. You need to crush it and crush it hard several times a week.
Tip: The Cure For Stubborn Medial Delts
Can't get your side delts to grow? You may be training them wrong. Here's what to do instead.
Tip: Do Quarter Squats To Boost Athleticism
Sounds like heresy, but a new study backs it up. Check this out.
Tip: Two Rotational Exercises for a Powerful Core
Punch like Tyson. Kick like a mule. Use these two proven moves to crank up your core strength.