Thus the physician becomes involved in ever increasing tensions between what he can achieve biologically and what he must achieve through man - made civilization and its results. (religion-online.org)
As resistance bands stretch, they create increased tension in your muscles and cause them to contract. (8fit.com)
As you come to the top, as I mentioned above, you're actually pulling the cable directly towards your face, dramatically increasing the tension on the biceps at the top. (hardgainermusclebuilding.com)