This article isn't about running per se, but it mentions running several
times, and includes some thought-provoking, IMHO, ideas about
alternatives to improving conditioning.
A few quotes from the article:
1. "Back in the 1980s, Soviet scientists and coaches, Prof. Yuri
Verkhoshansky among them, pioneered "anti-glycolytic training" for
various endurance events. Where the prevailing approach of dealing with
the "burn" of accumulating lactic acid was-and still is-exposing the
athlete to ever more intense acid baths, the Soviets had a radical
thought: what if we arrange the training in such a manner that the
muscles do not produce and accumulate so much acid?"
2. "Although some recent studies claim to know the answers, the exact
cellular mechanisms that turn on mitochondrial growth are not yet known.
But Selouyanov figured out the stimuli responsible for turning these
mechanisms on. He learned that it is the total time a muscle fiber
spends in mild fatigue and acidity that presses the button.
"Runners are familiar with this effect when their slower fibers grow
some more mitochondria from training just below the anaerobic threshold.
The AnT refers to the exercise intensity when lactic acid accumulation
suddenly starts speeding up. Training right below this threshold
produces the desired condition of mild local fatigue/acidity."
3. "Decades ago, the Soviets recognized that predominantly glycolytic
training is most stressful to the endocrine system and thus can easily
lead to overtraining."
The full piece is here:
http://www.strongfirst.com/simple-sinister-progression-tactic/ - note
that it's not a scientific article per se, just a blog explaining some
of the science 'under the hood' of a popular training program
It's about a training program called Kettlebell: Simple & Sinister that
uses only two lifts, the swing and the getup, and that can be
incorporated "on the back burner" into other training programs once a
certain level of proficiency of skill in these two lifts is achieved.
Enjoy.
-S-