long, slow training = pointless and harmful

Jack Blatherwick, the conditioning coach for the Washington Capitols and conditioning coach for six American Olympic Ice Hockey teams including the 1980 “Miracle Team” talks about the ineffectualness of base training with long, slow distances.

This question comes up often: is it appropriate for young sprinters and athletes in sprint-interval team sports to establish an aerobic base with long, slow distances?

With few exceptions -- perhaps professional athletes recovering from an intense season -- the answer is "NO," for the following reasons:

Read the rest on Functional Path Training

I really liked the following bits:

If marathoners do too much long distance training, they establish a comfort zone, running below their anaerobic threshold. To improve times, they must run faster, of course, above their threshold -- and there are quite severe respiratory and cardiovascular consequences. This is a physiological habit, not a psychological one, and "speed" work must incorporate intervals to elevate the comfort zone.

Patterns of slow strides are imprinted just as "permanently" into our neuromuscular memory as the quick strides that a sprinter would like to record. Just as a golfer would not intend to include repetition after repetition of "bad" swings when he practices, neither would a sprinter.

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the mistake made by many fitness coaches is to "compartmentalize" the training into separate workouts -- aerobic endurance, anaerobic power, anaerobic endurance, skill, agility, strength, etc. etc. etc. Of course in a game, all of these attributes are required at the same time, so we should be looking for more ways to incorporate the various elements into "integrated workouts."

Compartmentalizing the metabolic training is analogous to isolating each muscle separately in our strength workouts, and it is just as non-productive.

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Furthermore, anaerobic interval training is highly aerobic, and can be a more intense cardiovascular workout than what fitness gurus would call a "cardio" workout. College hockey players doing six weeks of dryland training composed of "anaerobic intervals" for quickness and power made greater gains in aerobic and cardiovascular measures than if they had trained with aerobic distances for the same period

CrossFit for the win!! Don't abuse your body with LSD training. Go hard!