Many persons struggle to do movements like pull-ups. However in your quest to build a really nice back there are really good alternatives to pull-ups that can produce similar results with the correct form and in the right rep ranges. This week CobraCamp shares a really good back routine for persons who struggle with pull-ups.
很多人做不到引體向上。不過有幾個很不錯的選擇可以用來練出好的背肌。只要姿勢好加上足夠的次數範圍就可以。所以 CobraCamp英文版來分享個背部的課程給做不太到引體向上的人。（英文版有中文字幕）
https://youtu.be/bZpXHPFX93Y
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