Fortiori Design LLC
Registered: 1355349061 Posts: 1,530
Congratulation to Dominique, one of the many quite but incredible out of the BOX thinking coaches. Dominique is one of the extraordinary brains in Swimming and in the medical field. challenging her own ideas and thinking outside the BOX.
We are privileged have met Dominique in one of our MOXY seminar in Boulder and her open mind and her incredible ability to combine and adjust physiological critical questions with practical application has created a new Commonwealth record for Canada in swimming. Some readers may recall her worlds first assessment with NIRS in the water despite some resistance she has to overcome in her own sport against traditional ideas and brains. Dominique great work and it was fun to see how you intergate3d physiological information into a sport overloaded with traditional ideas of training . A sport, where numbers of reps and distance is the traditional guide of intensity rather than individual information of the athletes ability to delivery an utilize energy. Here a very small insight view in a s super intelligent training concepts. Here some comments as an insight view into a genius coaching brain. " From xy’s graph, I can tell that even the rest is shorter during the first set (12x50 pull on 1'30), her SmO2 is coming up fairly at the same level. What is interesting is even she is wearing paddle (during the second set), her SmO2 doesn't go lower. We like to use those device to be able to build some power by developing some strength (force). Either she didn't work hard on it or for her, it doesn't work the way we thought . During the last set, she had to swim fast. Her time were good even she was not kicking much. ...." We can tell by the lower SmO2 values that she did work harder then during the first set but not that much because there is not much difference between having a pull (between your thighs) and Here a graphic view of one of the individual workouts and the thoughts on what is going on. And here a very close look on what in this particular case the limitation was or is and where the focus had to be made. You see what creates a potential limitation an this here is in the last set. The race she won was coming " from behind" , which was the comment of the Pro's on the TV. Reality was, that she was the only one which maintained the speed. The same was true in the gold medal by the men's 400 m , where the only swimmer maintaining the pace was the winner. The Problem is, that in the graph above the critical information would be if tHb would plateau and SmO2 still would drop : Why ?? On the other side in a sport like ice hockey you would like to see tHb plateau during a shift and not what we see here. : Why ? Here a closer look at a NHL player with the needed load to create the tHb respond for one shift. And here just for fun for critical brains a great feedback from Dominique from a work out where the athlete had to change intensity and you can see how the coaches idea shows up as a perfect feedback from the athletes muscle information Question where and what shows the change in i8ntensity and what has changed. ?
Development Team Member
Registered: 1440858706 Posts: 369
Thanks for the interesting data on this case study.
I recall in one of the other case studies discussing venous occlusions in cycling. It was discussed there that venous occlusion trends in cycling would normally not show up as a drop in tHb on rest as it would in say a venous occlusion in an exercise with much higher force (e.g. weight lifting say). In other words, a venous occlusion trend in cycling might actually simply show up as a very small drop, flat or even slow increase in tHb at the end of the load. Now, i don't know anything about swimming physiology but i would have imagined that the compression of muscles in swimming would be even lighter than in cycling and so even less likely to see a venous occlusion trend this pronounced Any comments on what muscle was being measured here and why it shows up so obviously in swimming but not cycling?
Development Team Member
Registered: 1380484167 Posts: 1,501
In swimming we look often on lattisimus dorsi or pectoral muscles in upper body and on hip quadriceps rectus femoris and or hamstrings in legs.
Now, i don't know anything about swimming physiology but i would have imagined that the compression of muscles in swimming would be even lighter than in cycling and so even less likely to see a venous occlusion trend this pronounced I was actually hoping some of the cycling community would jump in here on this interesting topic. So for MOXY owner here a very simple case study you can do.. You can do all on dry land but if you have problems to believe the information you can do on in the water. Fix a MOXY on the rectus femoris of your leg. Now sit on a bike and you can push in different angles like 12.00 clock and than every perhaps 30 degrees as hard on the pedals as you can do. Use your break so we have an isometric action. If you have a SEMG add this to the feedback. Now do a 1 leg squatting after this. Now do a back or front crawl motion with the legs as hard as you can.You can either sit on the ground or on the back and work to failure. Than look the SmO2 reactions in all three cases and make your conclusions. Now here an old comparison of rectus femoris activity of 2 world class MTB athletes. The dates are from a Portamon study and you can actually figure out the RPM they where pushing it that stage with same wattage for both. Despite the fact , that they where in that years very close in races they have completely different limiters. One of them surprised us most . it is the actual reaction on blood flow or how they bike. The graph shows you tHb reaction of both. We than analyzed it closer with HHb and O2Hb reaction and there was the difference. One has a situation where, when tHb goes sup it is due to a decompression reaction of the RF and when it goes s down it is due to a compression of the muscle on the blood vessels. The other athlete had a situation where, when tHb increased he actually created a venous occlusion and when tHb dropped it was an occlusion outflow. Optically it looks the same . So as we have limited information looking at SmO2 alone so do we have limited information looking tHb alone.