Відео

Hey Graham. You only live once!

@@podiumphysio657 very true. But my life expectancy could reduce drastically, if I brought another bike home. 😆

@@grahambowes756 Hmmm. Maybe just buy the bike and keep riding it - dont go home!

Hi there. This video is showing benign fasciculations after exercise and is not a medical problem, just a sign of muscle fatigue after exertion. It goes away by itself within a few hours.

Hi Danie. I dont have any personal experience with Oval chainrings. I understand that they are supposed to improve the lever arm for when the crank is in the peak power position. However if you have looked at some of my previous videos you will know that I am a big advocate of shorter cranks so that argument doesnt really gel with me. They are obviously still a niche product and some people will try them and stick with them but I suspect in a few years we will look back on them as a fad. If you have knee problems, or are trying to optimise for certain muscle groups I am sure there are different/ better ways to achieve that.

Makes sense. Get the most out of your body in a short period of time at the end of an effort

Do you alter your saddle position between rides?

@podiumphysio657 Yes, lower to spin but higher to push big gears at lower cadences. Also during a ride I toggle riding positions between rear, mid, and the nose of the saddle. Nose of the saddle is better angle for climbing, mid saddle for sprinting, rear saddle for cruising.

@@mmurmurjohnson2368 Sounds like you would benefit from one of Mohoric's dropper posts!

Thanks for your feedback Greg. Keep on riding!

Thanks for your feedback Greg. As I said, the research tends to look at immediate, same day changes in efficiency when cyclists are told to pedal in a certain way. And none of it helps. I have not seen any research yet which looks at changes after months or years of pedalling technique coaching. It would be a difficult research study to achieve, and I suspect would have few volunteers. If cyclists dont improve in the short term, why would they invest months doing that same pedalling action??

I have several calf videos in my shorts playlist already

Thanks for your thoughtful reply Michael. I suspect there may be some gains to be made from deliberate long term pedal action "enhancement", but it will be difficult to work out in advance what the best options for each rider is, as everyone is different. Research is unlikely to come up with the answers for us as it would be a very difficult long term study to conduct.

I think you are right. And will help the bike industry profits also!

In general moving the cleat to the most rearward position on the shoe is helpful if: - your ankle range of motion is excessive - you have Achilles Tendon problems - you have other bike fit difficulties In other words it is a good position for many people. Some people feel that their ability to achieve maximum sprint acceleration is reduced so they will tend to keep their cleat position more forward on the shoe

The ankle does move a little bit to push the toes down, but it is important for this to be "just the right" amount.

Thanks Daniel. It is really nice to get supportive comments like yours. Each video requires many hours of work but I enjoy the creative process and hopefully the information is useful!

I havent tried it myself. From a physiological standpoint it is a point in the pedal stroke where the glutes cant contribute much, so overall power production would be less here, however at higher cadence and lower torque it could be good use of the 3 Vastii muscles at the knee essentially performing a kicking action??

@@podiumphysio657 I don’t tend to focus much on pedaling technique because dropping to the drops seems to activate the leg muscles better. I guess it's similar to how loading the muscles works in deadlifting. More aero and power in one move.

@@myNamezMe Yes that will likely facilitate glutes more. I wish it was that simple for me but unfortunately with some pretty advanced osteoarthritis in my hips, getting down to the drops is no longer an option!

My pleasure!

The research seems to support that in the short term, attempts to change technique/ cadence or whatever else is futile as it degrades performance. It is less clear how much it would be possible to improve pedalling over months and years with drills and different coaching methods. This would be a much more challenging trial to run with so many variables to control.

@@podiumphysio657 Its logical, short term it should be worse, ur muscles grown in a way to suppurt ur technic, in long terms, ur muscles can develop to provide platform to a new technic, possible reaching higher cielling.

@@ThomasHubik I agree with you. It would be very interesting to try to construct a research project to study this.

Running a saddle too high typically causes pain behind the knee/hamstring area as compared to the knee, which occurs when the saddle is too low. I had the same issues with saddle sores as you when I was too high due to rocking, which caused irritation where my right leg meets my butt. I'm 5' 3" and just went from 170mm cranks to 165mm on my size 50 frame Domane. Riding with them today for the first time.

A lower saddle will definitely provide more stability, however it can cause problems with knee overload and start to impinge the hip at the top of the stroke. Some people can manage with it because everyone is different. If you are getting saddle discomfort at higher positions then I would say dont worry about going higher because it doesnt seem to suit you.

@@jeffreysaffir1375 I am 6'4" and have been riding with 160mm cranks since the start of the year. Best bike fit change I have ever made (Note though that this video shows my older "indoor bike" which is still on 175 cranks)

@@podiumphysio657 I posted this on the Trek Domane Lounge on FB: On a previous thread I discussed going from 170mm to 165mm cranks. Even though I had to get the power meter too (SRAM Rival) I decided to go ahead with the change especially given the fact I am 5' 3" and felt there was only an up side in my situation. I ordered them Monday and had them installed yesterday as well as having another fit to make sure things were in line with where they should be. Just got back from my first ride with them. A huge success! This season I was in the mid 16's on most rides with an occasional low to mid 17 mixed in. I hit a PR today with an average speed of 18.8 mph on a 55 mile ride with 2500 feet of climbing. Pretty excited with the ride. I definately noticed things during the ride that I liked. First of all, I was able to keep pace with the other riders better on long gradual climbs spinning faster, which allowed me to switch into a harder gear more efficiently. I was also able to close any seperation much faster this way. Normally I am towards the back in this situation on group rides but today I kept pace better. Climbing was easier as I didn't feel like I had to "get over the top" of my pedal stroke in comparison to previous rides. Even though I didn't have knee pain with the 170's it was more comfortable on my knees during. Felt things more in the quads which I prefer. I learned I would rather spin up a bit to propel myself forward instead of powering up with my legs. Cardio over muscle fatigue. I did have to make minor adjustments at the beginning of the ride based on the fit but once I did everything felt great. Because we raised the seat without raising the bars I can also flatten my back and get more aero in both the drops and the hoods. Very glad I experimented with shorter cranks. I will be putting my 170mm crank set up for sale after the results I had today. For me it was a win.

@@podiumphysio657 I only lowered the saddle 1-2 mm but it is enough to make a positive difference.

Yeah there are some weird statements in these comments. An alternate universe

Doh, answering my own question - it appears my understanding was back to front! I thought I had Tennis Elbow but it's Golfers Elbow. Will the flexbar still be a good treatment?

@@OliverDungey Hey Oliver, so first things first. Tennis elbow is the layman's term for lateral epicondalgia which refers to the bump on the outside of the elbow. Golfers elbow refers to medial epicondalgia which refers to the bump on the inside of the elbow. I think those terms are universally accepted. The difference in treating golfers elbow is that the focus needs to be on wrist flexion and forearm pronation. So instead of twisting the flex bar back towards you, if your palm is facing down you try to twist the flexbar away from you. And instead of bending it into an arch with the palms starting in a palms down position, you bend it into a "smile" starting with the hands in a palm up position. Hope this helps

@@podiumphysio657 That is great, thanks for the tips. Just trying that movement out in the air I can feel how tight my forearm muscles are

@@OliverDungey Some gentle stretches might help as well, but we need to be careful performing stretches with tendinopathy issues as they can retard blood flow and slow down tendon healing

Which country are watching from? I just checked on our Australian replay and didnt hear them mention that. Kudos to him though if that is the truth. Seems like quite a massive improvement in the kilo WR!

Grinners are winners

Interesting thought. I dont know a lot about Oval Chainrings but I can see the potential there

@@podiumphysio657 could be fun to see you do some testing on Ovals, but i am sure u need to put them on your long cranks, otherwise the lever becomes to short, i have tried 167 and went back up to 172 cranks with my Ovals, it felt better

Go for it!

Glad to hear it worked well for you. Awesome!

Hi John. I've never received a SuperThanks before. I'm extremely grateful for the gesture. Very much appreciated and glad you enjoyed the video!!!

Insightful

Ahead of his time

Nice. Good luck at Amy's Grand Fondo!

That is true.

Yeah we are a simple minded lot!

deep

Hi There. I'm not able to provide specific advice over the internet, but what I can say is that 170mm cranks seems to be quite long for a 52 cm bike frame. I think going down to 165 would be a good start, and going even shorter to 160 might be even more beneficial. I went from 175 to 160 as a leap of faith and was very happy with the results.

Thanks Benson. I really appreciate your feedback!

Hi Andrew. I would not be too concerned in this case as both knees move relatively vertically. It would be more of a concern if there was greater asymmetry or both knees went a long way out. The solution depends on the individual and will be a combination of a bike fit and an exercise program

However your trunk will be inclined further downward, reducing body frontal area, which would more than compensate for the slight increase in bike showing beneath you

@@WesMcCray-zd5vs quite a common problem

I believe Jim Martin used this study in his presentation: pubmed.ncbi.nlm.nih.gov/12183473/ And another quoted on the same topic is cdnsciencepub.com/doi/abs/10.1139/h97-027#.XnkXtZNKiqA

@@adalbertthomalla4887 bike industry keeping costs down by reducing options

@@petsquirrelable insightful

Hey there. You can view the transcript of all youtube videos via the button at the bottom of the description panel

Ok. So if you are making a statement, it is incorrect. If you are asking a question, yes I did change the crank length in my power meter settings. There are many reasons to have shorter cranks - I definitely agree with that statement.

Cool. Which team has signed you up?

@@podiumphysio657 McDonald's

Hi Mark. If you watch the whole video you will see that it does work, very well, for me. I'm also 6 foot 4 and am now using 160mm cranks.

@@podiumphysio657 Back when I was just cutting my teeth in cycling, I read everything I could find about positioning, equipment and techniques. When studying cycling physiology, every body measurement has to be considered if you really want to be scientific about it and even then, it can only be recommendations. For pedaling...crank arm length, seat height, setback, Q-factor, etc. people would have their femur length measured relative to their tibia length and ratios were derived taking into consideration your foot length and where you should have your foot positioned over the pedal as well as hip flexibility and how pointed you have your toe when pedaling for example. The measurement taking and analysis was endless. Each adjustment is not only dependent on the body measurements, but the adjustments are dependent on the other adjustments. There is so much variation from body to body, it is really impossible to have methodology that is universally applicable. Like you've said, it has to work for you.

Is that a statement or a question?

@@podiumphysio657 175/160 = 1.094 (9.4% difference) 1204w/1092w = 1.11 (11% difference) 1092 x 1.11 = 1212w ( 0.7% different to 1204w and statistically insignificant)

Well there may be a short term supply issue if people start taking notice but the supply chain will sort itself out eventually

I would suspect that a few high profile athletes were touting longer cranks as the reason behind their strong performances, and in the absence of scientific scrutiny the trend became folklore.

Assuming your power meter is calibrated to the correct crank length is should be accurate

@@podiumphysio657 Thanks!