What do you think? http://www.dailymail.co.uk/health/article-4681956/Strength-comes-nerves-muscles.html
There is truth in the findings, but perhaps they are not as dramatic as the article headline suggests. The issue had already been addressed in an earlier study. Here is a piece discussing that 2012 study: http://www.cbass.com/LightWeights2.htm I think the main and practical takeaway is that both heavier and lighter weights "work" in increasing strength and hypertrophy provided that the intensity of effort is high, but that the specificity principle prevails regarding poundages. The article you posted does point that out, but I don't think it focuses on the true value of the study: you don't have to lift heavy weights to substantially enjoy the benefits of weight training.
I think this is an excellent article. Points out that heavier weights and less reps can provide more and better results irregardless of all that intensity bullshit highlighted in other articles.
I remember under estimating the system effect of heavy tripples in deadlifts for example. I would have liked to do that once a week but could not muster what it took for 3 to 4 weeks to do that again. Admitedly, age was a factor. I look at it as two ends of a spectrum, both are excellent. Behave and look like an Olypic lifter/power lifter or behave and look like a bodybuilder. Lots of commonality, brothers at heart but argue like family because goddamit my way is the right way.
The article was not distinguishing between an Olympic lifter and a bodybuilder. The study was conducted entirely within the context of bodybuilding.