What I loved about this study is that it showed diaphragm activity was highly variable. The diaphragm and breathing are starting to get attention once again in terms of limiting performance after going through a phase where it didn't really matter.
Essentially the fiber type can be “trained” based on its use.
-Increase skeletal mass in older adults by decreasing IL-6.
I think the take away from the above studies is to think of altitude as a stressor, just like any other workout or new training stimulus. I'd venture to guess that why a large majority of people who go to altitude and don't see positive adaptations, is because they "overtrained" at altitude because they didn't realize it was an additional stressor.
Training effect of altitude on breathing:
Protein is becoming a bigger deal, even for endurance athletes. And it not only matters that you take it in, but also when and how much.
-De Paoli- Inexperienced barefoot more economical barefoot than when shod.
-Zero drop shoes change foot angle at touch down so its closer to barefoot (Bohne)
More interesting stuff on shoes and the barefoot trend. What I like about the VFF and RE study is that they at least gave them an adaptation period instead of doing the stupid RE in shoes then right after in VFFs.
Additionally, the zero drop shoe study shows what we've all been saying for a while. Heel height plays a specific role in the angle of the foot at landing.
"Does Gait Retraining To Decrease Vertical Loads Reduce Bony Loads In Runners?" Biomechanics and Fatigue: -Fuhr et al- found that "
Biomechanics and Fatigue:
-Fuhr et al- found that "These results indicate that changes in mechanics occur throughout the simulated 10 km run and these changes are magnified as runner’s fatigue. Mechanical changes such as these may be compensatory in nature. Increased elbow flexion may have assisted propulsion by increasing the amount of lift acting on the body and ultimately increasing the individual’s total flight time. This, combined with increased knee flexion, seem to be key coping strategies to maintain pace with fatigue induced step frequency decreases.
contractions of damaged muscle.
Eccentric muscle damage changes EMG activity.
This study was interesting because it found an increase in core endurance, yet a decrease in economy...which is what all the core fanatics say is supposed to be improved. This doesn't mean that core is bad, it just makes you ask the question of why economy was decreased...or it tells you the measurement of RE is kind of crap...
In this study they looked at training in Brussels versus the country side. Very interesting that training in city manipulates systemic inflammation.
This is not relevant at all to me...but it still is really interesting....yaaaa I dunno..
An increase in blood flow and volume might help explain why eccentric work seems to work so well.
How cool is this? Fit people can suppress that urge to eat much better than non fit.
VO2 over 800m race:
I love this study because it supports something I happened upon way back in HS, doing pool plyos. Yes, you lose some of the stretch reflex and increase Ground contact time when you do it, but doing pool plyos and more importantly pool power work is a GREAT tool for distance runners who generally suck at it and are prone to injuries from that kind of stuff. I love explosive pool work in particular, but this study shows that it at least works.
I LOVE this study. Why? Because it shows the individual immune system response to exercise. This has profound impact on recovery for athletes and is just another example of why individualization matters. I'll have a blog on this soon.
This was a cool little study that showed that when people were assigned an intensity that had higher negative affect and when they had a self chosen intensity for exercise they felt more positive affect. What this means, is don't be anal about assigning exact paces for everything. Save that for when you need it.