This study contradicts other studies that have proved the opposite. I have a belief that whatever works for you, works for me. There are many benefits to single set workouts, such as variety and quicker routines. I will typically start new clients out on single set routines. We still have to realize that every one is diffrent in terms of routine psychology.
People have different feelings when trying out new workouts.
Some are opptimistic and others are pessimistic. When physiologist conduct studies, some try to curve the results to benefit their hypothesis. In terms of testing they might put a specific emphasis on the result they want. In terms of credibility we are all accedited human beings. We can test for ourselves what works and what doesn't.