Like i said previously, i've only (thus far) read the abstract. But the authors conclusion in the abstract of the actual paper doesn't lead one to conclude that it affects endurance performance, i.e., they stated it prevented a decrease in 30-sec effort. The overwhelming evidence in peer reviewed scientific journals, does not support the idea that cross training has a performance benefit.<br /><br />Trying to convince me that weight training has an effect on endurance performance, with a paper that has no statistically significant evidence isn't overly convincing to me.<br /><br />There is no good evidence that I'm aware of, that shows that weight training has a significant effect on endurance performance. In fact, the evidence suggests that it may be detrimental to aerobic performance, as increased hypertrophy through weight training, would lead to a decrease in mitochondrial density.<br /><br />Strength is not a limiting factor in endurance cycling, and (endurance) cyclists are (typically) no stronger than age and sex matched, healthy individuals.<br /><br />I don't know, what specific information you have, but if you do a search in the primary scientific literature, such as on Pub-Med, you'll see that the overwhelming majority of research shows no benefit to endurance with weight training, in trained individuals.<br /><br />I don't disagree that going to the gym will make you stronger (if by going to the gym - you mean that the athlete does some sort of weight training -- i have no argument with this). However, as i've previously mentioned cycling isn't strength limited, the very low to moderate power outputs required to be successful, even at the very highest levels (i.e., TdeF) require very little force. Most (all healthy people??) matched individuals can likely ride at the power required to win e.g., the TdeF. However, the ability to keep riding at that power is what is lacking, and weight training won't affect that.<br /><br />Weight training doesn't increase aerobic ability (e.g., TTpace, LT, VO2max, etc.) as it doesn't provide the stimulus needed to cause adaptations that are central to aerobic performance (e.g., increased capillary density, increase in type i fibres, increased mitochondrial density, increases in aerobic enzymes, etc.).<br /><br />Ric