Dave Noisy wrote:I dunno - where does the power from a sprint come from? It's certainly not depending on my aerobic engine.
There are lots of ways your sprint time could improve without an increase in muscle mass. If the only way to improve your sprint time was to gain more muscle we'd have 230lb sprinters by now.
POWER = STRENGTH x SPEED
There are two main ways to get stronger: gain more muscle and thus have more muscle fibres at your disposal (although more muscle doesn't necessarily equate to more strength - you still need the neurological adaptation to be able to use that muscle effectively), or become more efficient at activating more muscle fibres. You can also become more efficient at utilising the muscle you already have in a faster manner, hence why 100/200/400m runners do the Olympic lifts.
Have your sprinting mechanics not improved? How have your split times changed? Are you just hitting a higher top speed, or are you able to maintain a similar top speed over a greater period of time? Has nothing else changed in your training? There are all these, plus other variables, yet you seem to think it's all because you've gained muscle, a claim which you have admitted elsewhere you can't actually substantiate.
If i were lifting, i'd be doing PB's regularly. Would that really be occurring if i were deficient in protein?
Pure speculation based on extrapolating performance in one sport onto performance in another totally unrelated sport. This would not happen: max effort lifts are far too taxing on the CNS to keep doing week after week. How did Lance Armstrong do as a marathon runner again? Oh yeah, he was pretty average and said it was way harder than the TDF.