I have an old set of (silver) Oakley Pro M-frame’s knocking about (with VR28 and clear lenses, I think) that you could have for £30 posted?

email in profile if interested

Hi Matt ;-)

I work as a ‘sports scientist’ with one of the riders on your list and I know that ‘we’ measure VO2 and the like in the laboratory, and ‘they’ train with a power meter on their road bike.

I think they are PANTS… bought some posh Magura Marta Magnesium brakes from them… came with the wrong ‘bits and bobs kit’ in one of the boxes and one lever was missing the reach adjustment bolt… maybe they were using stock for spares and not replacing the parts before sale? When I complained it took them over TWO MONTHS for them to sort the problem out… I won’t ever be shopping there again.

I am writing up whilst working full time – it works out quite nicely as I have a tidy salary and my employers see the benefit in supporting my PhD completion, which means that most of the time I get left alone to write up – splendid! I have 61 days left… woooo!

YGM. Dibs please.

If you have one spare that would be jolly nice… email already sent btw.

You have the ‘old one’. Real world difference, probably minimal.

31

Scratch – no worries, anytime.

Scratch – YGM

Mac user here Best windows package is Parallel’s
Also go on Apples App store and buy Pages Keynote Numbers as much cheaper than in store.

Good advice – cheers

Did you get the One 2 One at time of purchase which helps But there are online tutorials which show there software.

I haven’t bought it yet, but will do so in a few days.

Dont think you need Anti virus mind unless linking with PC machines.

Does this apply with USB sticks as I will use these with both PC and Mac.

Ben sales – thanks for you post!

Avoid Wine. It’s a complete pain in the arse.

As someone else has said, could you please elaborate on this point?

Avoid NeoOffice or Open Office if you ever want to confidently share documents with Microsoft Office users. They’re not bad bits of software but they don’t get the rendering of Office documents 100% perfect. Mac Office 2011 is excellent and you don’t have to worry.

I think I will be trying Mac Office 2011

Speaking from being a long-time Mac user, and using a Mac professionally in a predominantly Windows 7 environment I’d second the recommendations to stick as much memory in as you can and run Windows in a VM. Parallels or VMWare Fusion, it makes little odds. I prefer VMWare myself, but mostly because my work is a VMWare partner.

I will be upgrading to 8GB (but not bought from apple).

Bootcamp is a good way of running Windows, but no good if you want to quickly be switching between Mac and Windows apps, which is sounds like you do. I tend to have a VM on the go permanently with my development environment in, and run everything else natively on the Mac.

This sounds right for my needs.

The only thing that’s stuck out to me in your spec is the size of the SSD. VMs can swallow space pretty quick. I’ve got a 2010 Macbook Air with the 256Gb SSD. Once you give up the 50Gb Aperture library, the 40Gb iTunes one, the 100Gb of Vms, there ain’t a whole heap left. SSDs do make VMs whizz along though. The biggest bottleneck for them, after memory, is disc access speed.

I am a bit ‘slow’ on some of this terminology? What’s the ‘aperature library’?

I won’t have itunes on the laptop – I streem via wifi and Spotify

I intend to just run the graph and stats package on the VM, I assume that this will use only a little of the SSD capacity? Or am I missing something here?

Thanks again, Jon

Try Macrumors and join and ask there forums on every thing Apple based I find this very useful.

Grantway – thanks, I will!

Conqueror – thanks for your input

I’ve submitted documents [assignments] using Open Office, saving in word 97 format (as that is what they requested) with 0 problems. Unless you are in the work place and being told what to use, I don’t see any reason not to use it now.

I work as a research scientist and unfortunatly I really need to keep my documents to a standard format – most journals want .pdf files for submission, but collecgues seem to insist on Word documents.

OP, out of interest what are these windows programs that you are needing to run?

The main one is Sigmaplot (a graphing package), and also SPSS (a stats package). The former I believe (from their website) is not available for Mac, and the latter I have/can get (updated to the latest version) for PC only via the University for a couple of quid.

Three fish – would you believe it… I didn’t think of looking at a Mac specific forum!

+1 for Open Office on Mac OS X

Looks like I need to consider this software… just… can’t… quite… let go of microsoft office!

Stevious – thanks, some poitns to ponder there!

– Bootcamp doesn’t support Windows XP any more on the newer Macs (certainly not on my 2011 MBP).

I did’nt know that!

– I use Office 2011 on my Mac and once you’ve found your way round it’s just as good or better than the windows version. I certainly wouldn’t bother installing it on your windows partition/virtual machine unless you already have the license. Only thing to be careful of is to ensure to save things in the right format if you want to port them over to an old version of windows.

I like this idea.

– If you’re only using windows stuff occasionally, you can run quite a lot of software using some WINE software. This is open source stuff designed to let windows stuff run on Linux/unix without needing a windows installation at all. I use it to run Memory Map on my mac, and it’s far better (for me) than using any of the virtual machine stuff.

This sounds good – but I don’t 100% understand how it works? Could you please elaborate a little?

I would like to run ‘training peaks WKO+’ software on the Mac (I am a cycle coach in my spare time) and so if this WINE software could do that I would be very happy!

Thanks again

Three fish – thanks for your input.

Why not just use Bootcamp? I have XP running on Bootcamp and it runs very, very quickly.

That sounds good – but I tend to spend a lot of time transfering ‘stuff’ from ‘windows only applications’ into word (I like the idea of running the latter on OSX), so I am not sure if boot camp is the right option?

Thanks again nick

If I used it a lot I could probably improve it’s performance by allocating more memory and disc space, but as it’s occasional use i haven’t bothered.

Is this a relatively easy process to complete?

As I can run OSX most (75%) of the time, I still need to run windows specific applications at a decent rate.

Thanks to everyone who has posted so far – your comments have been really useful.

I use Virtualbox for running Windows on my macbook pro – works fine, although it’s pretty slow (i5 macbook pro with 4GB RAM). I only use it very rarely for specific software that I can’t get on a Mac, so it doesn’t bother me too much. Also, VirtualBox (developed by Sun, now owned by Oracle) is free, which helps.

I have heard of virtual box – I will look into that software – especially as it is free.

Can I ask, in what kind of situation do you notice a slowing down of your machine?

Regarding Office, I wouldn’t bother running Office on Windows. The recent Mac version (2011) is great, and a vast improvement from the previous Mac version (2008 I think). I’d aim to use as much as you can on the OSX and only use Windows when necessary!

Sounds good to me.

nickb – thanks for your input.

If you’re doing any virtualisation (VMWare/Parallels), the more memory the better! I’d recommend going to crucial.com/uk and bumping the memory to 8GB. It’ll only cost about £70 and the VM will be a lot faster and affect the operation of OSX far less.

No wonder my old 512mb laptop feels slow!

Edit – don’t get additional memory from Apple – it’ll cost you >2x crucial prices.

Good prices… far better than from Apple direct.

Euain – thanks for your comments!

unsponsored/.duncan – thanks for your comments

Phiiiil – thanks for your reply!

Running windows on a mac is actually way better than running windows on its own

That is exactly what I was hoping for!

So you think that VMware is better than Parallels? Are you still able to switch (copy and paste – e.g. graphs, stats outputs etc to word) between OSX and Windows?

Which ‘side’ would you put Office 2007/11?

Thanks again, Jon

Stevie P – thanks for your reply.

Yep, I have office 2007 at the moment and would be looking to try office 2011. Do you know of much difference between the Mac and the PC version as I could run either with Parallels… is there a ‘best’ option… I mean between running it on the OSX, or via parellels on Windows 7?

Cheers, Jon

bump for the late night crew

Iain – thanks for your post… I have seen similar reviews, but am still interested.

Swiss stop ‘yellow flash’ are for carbon rims.

Assuming negligable resistnce from anything else (not a bad assumption on a steep-ish hill).

Then for a given hill,

E=mgh
P=E/t

P=mgh/t

P = power output as usefull energy (moving you up the hill)
m = your bodymass in kg
g = 9.81
h = vertical height gained
t = time taken

As long as the hill is steep enough to keep you slow enough to ignore wind resistance, on a day with no wind it’ll be fine.

And anyway, its just a number you can use to compare against yourself, who cares if its not accurate to more than +/-20W.

THIS!

Watt is a unit of power, i.e. energy over time

True

but power is directly proportional to speed.

Not really – coasting downhill gives you speed for no effort.

The physics of cycling is complicated:

PTOT = (PAT + PKE + PRR + PWB + PPE)/Ec
PTOT = (0.5?Va2Vg(CdA + Fw) + 0.5(mt + I/r2)(Vgf2 – Vgi2)/(tf – ti) +
VgCrrmtgCOS(TAN-1(Gr)) + Vg(0.091+0.0087Vg) + VgmtgSIN(TAN-1(Gr)))/Ec

Where:

PTOT = total power required (W) mt= total mass of bike+rider system (kg)
PAT = power required to overcome total aerodynamic drag (W) I = moment of inertia of wheels (kgm2)
PKE = power required to change kinetic energy (W) r = outside radius of tire (m)
PRR = power required to overcome rolling resistance (W) Vgf = final ground velocity (m/s)
PWB = power required to overcome drag of wheel bearings (W) Vgi = initial ground velocity (m/s)
PPE = power required to change potential energy (W) tf = final time (s)
? = air density (kg/m3) ti = initial (s)
Va = air velocity (relative to direction of travel) (m/s) Crr = coefficient of rolling resistance (unitless)
Vg = ground velocity (m/s) g = acceleration due to gravity (9.81 m/s2)
Cd = coefficient of drag (dependent on wind direction) (unitless) Gr = road gradient (unitless)
A = frontal area of bike+rider system (m2) Ec = efficiency of chain drive system (unitless)
FW = wheel rotation factor (expressed as incremental frontal area) (m2)
Mt = total mass of the bike and rider system (kg)
I = moment of inertia of the wheels (kgm2)
r = outside radius of the tyre (m)
Vgf = final ground velocity (m/s)
Vgi – initial ground velocity (m/s)
tf = final time (s)
ti = initial (s)
Crr = coefficient of rolling resistence (unitless)
g = acceleration due to gravity (9.81 m/s)
Gr = road gradient (unitless)
Ec = drivetrain efficiency (unitless)

I want some… can’t afford them though.

(Almost) Dr LabMonkey – exercise physiology

Cable ties

Milkman

Thank you…

I’ll really need to find an academic collaborator interested in performance under heat stress in you want measures of this

and

For my part, my focus is on the health of athletes

With these two statements we have a truce.

All the best with your research in the future.

Jon

p.s. A small piece of advice, give up on the youtube clips and personal recommendations. Only argue your point with solid scientific evidence in support.

Milkman

I see you have forgotten/ignored my question

What ‘conditions’ (i.e. temperature and humidity) and type of exercise (i.e. duration and intensity) are you suggesting that colostrum will elicit an improvement in exercise performance?

Or maybe you could postulate under what conditions this may be applicable…

This may have value in enhancing athletic performance

The latter was taken from your very own proceedings, which you didn’t even know had been printed/presented… that must be embarrassing.

Anyway, hometime for me. Have a great weekend all.

Milkman

What ‘conditions’ (i.e. temperature and humidity) and type of exercise (i.e. duration and intensity) are you suggesting that colostrum will elicit an improvement in exercise performance?

Perhaps you can report it here in a manner that will not compromise publication

I am not privy to this work, and so I am in no position to comment on unpublished reserach.

Apologies LabMonkey, labrat an unintended error, no slight intended.

No offence taken.

One question for you…

Q: What is the principal mechanism that regulates time to exhaustion, or more importantly… performance in the heat in humans?

Clue: It’s not the Gut

Big Clue: Is it the brain, and central fatigue?

The brain will stop a human exercising long before the gut becomes damaged.

The end, thank you and goodnight.

Scaredypants:

OK, one more… Day and collegues can explain this one!

VO2max is sort of incontrovertible, I thought (where the line forms a plateau). I thought VO2peak was the point at which subjects (most of us) don’t reach plateau but it hurts too much to go on, hence more susceptible to psychology ?

J Appl Physiol. 2003 Nov;95(5):1901-7. Epub 2003 Jul 11.

The maximally attainable VO2 during exercise in humans: the peak vs. maximum issue.

Day JR, Rossiter HB, Coats EM, Skasick A, Whipp BJ.

Abstract

The quantification of maximum oxygen uptake (V(O2 max)), a parameter characterizing the effective integration of the neural, cardiopulmonary, and metabolic systems, requires oxygen uptake (VO2) to attain a plateau. We were interested in whether a VO2 plateau was consistently manifest during maximal incremental ramp cycle ergometry and also in ascertaining the relationship between this peak VO2 (V(O2 peak)) and that determined from one, or several, maximal constant-load tests. Ventilatory and pulmonary gas-exchange variables were measured breath by breath with a turbine and mass spectrometer. On average, V(O2 peak) [3.51 +/- 0.8 (SD) l/min] for the ramp test did not differ from that extrapolated from the linear phase of the response in 71 subjects. In 12 of these subjects, the V(O2 peak) was less than the extrapolated value by 0.1-0.4 l/min (i.e., a “plateau”), and in 19 subjects, V(O2 peak) was higher by 0.05-0.4 l/min. In the remaining 40 subjects, we could not discriminate a difference. The V(O2 peak) from the incremental test also did not differ from that of a single maximum constant-load test in 38 subjects or from the V(O2 max) in 6 subjects who undertook a range of progressively greater discontinuous constant-load tests. A plateau in the actual VO2 response is therefore not an obligatory consequence of incremental exercise. Because the peak value attained was not different from the plateau in the plot of VO2 vs. work rate (for the constant-load tests), the V(O2 peak) attained on a maximum-effort incremental test is likely to be a valid index of V(O2 max), despite no evidence of a plateau in the data themselves. However, without additional tests, one cannot be certain.

Scaredypants:

my point is, what’s your take on the claims that THG, testosterone etc help with intensive training?

This is my last post (hopefully) before I vanish (not literally) for the day…

For ‘endurance exercise’ i.e. that lasting more than about 2 mins, the most effective ergogenic aids/drugs are the ones that enhance either O2 delivery to the muscle or those that facilitate O2 utilization within the muscle – as oxygen and carbohydrate (and fats) are the principle providers of energy to the muscle to support exercise.

Jon