And lastly, there are the isolation movements which are used to stimulate specific muscle areas. (fitnessandpower.com)
At baseline, no group differences were observed in the percentages of type I and type II muscle fibers and / or the percentage of muscle area occupied by types I and II fibers. (academic.oup.com)
The back is a big and complex muscle area and focusing on just a few good exercises won't give you sustainable progress in the long term. (fitnessandpower.com)