dumbbell curl

How Do Partial Preacher Curls Affect Your Muscle Growth?

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Arnold Biceps Preacher Curl

Key Points: A group of 24 untrained young adults trained partial preacher curls twice a week for five weeks. One group only trained at long muscle lengths (0°–50° flexion) and the other only trained at short muscle lengths (80°–130°). After five weeks, the group training at long muscle lengths had made greater gains in both … Read more

Do Lat Pulldowns and Rows Work Your Biceps?

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Lat pulldown for biceps

Key Points: Lat pulldowns have been shown to work (and grow) the biceps muscle just as good as barbell curls. At least in untrained subjects. Adding barbell curls to a program of lat pulldowns doesn’t lead to further muscle growth in the biceps. Once again, in untrained subjects. Rows only work your biceps half (50%) … Read more