Re: Brett, I had the same cramping... I noticed that - he is probably too busy trying to find a girlfriend online. I don't think he will have too much success that way (and certainly not with girls who question why any 15 year old teenager might be interested in a boyfriend/girlfriend)
Re: Brett, I had the same cramping... Hahaha.... Come on man.. :> I am checking on this topic everyday. Thank you for giving mi the details. Actually, i am eating bananas since the time, i saw the advice on eating bananas. I am not looking for a gf.
Re: Practical advice Sorry for nit-picking, but: "Very few badminton matches go long enough for a player to need additional salt, so the added salt to such drinks is not particularly necessary." This is not quite true. If you have some sugar (carbohydrates) in your drink (no more than 4%!), a little salt actually DOES help. Not because you need the salt itself, but the salt significantly quickens the uptake of the carbohydrates in your drink. And this is a scientific fact
Re: Practical advice hehehe... we're all silly knit-pickers... I thought me mentioned that somewhere, but thanks for the reminder. I appreciate it.
BAD NEWS FOR KELVIN Kelvin, Whilst I do not contend exogenous steroids alter the hormonal balance of the body, I do contend the point - "produces more adrenaline" (because they don't). And that Potassium ions can neutralise acid. "These are all medical evidence done in case studies." Well this is a good point. So in order to be impartial, I did show my physician colleague your posting and she also thought it was rather strange. "Sport doctors know of these things, as do your regular physicians... do not question me as I could have gone into pre-med, rather opting to finish business instead. If you do not understand how lactic acid works …….." Very good advice. My interpretation is that some of the concepts you have described are not exactly mainstream physiology. As being a practising clinical physician, I had hoped that I had learned something useful having been through five years in Medical school (5 yr course in UK), took one year to get a Bachelor's honours degree (additional to the medical degree), undergone postgraduate studies in physiology and pharmacology, done and presented research at conferences, instructor in Advanced Cardiac Life Support, got specialist medical qualifications, employed as an Attending(Consultant).. So if you insist that I lack understanding to your statements, you are dead right!!! Whilst quite open to suggestions, I will raise queries to statements that are at odds with my knowledge……[Of course you could always claim I know nothing and that my academic achievements were by pure luck(!)] (P.S. I have more on my resume), Now you know why I only have time to play badminton and not pursue other interests. "If you do not understand how lactic acid works with your muscles I suggest you go read up on it." "It's all rather simple, but I suggest in order for you to learn of these things for yourself, to go read, and retain this knowledge." Glycogen is a store of glucose. Glucose is the substrate for energy production. Energy is obtained from glucose by the glycolytic pathway (broken down). This does not require oxygen but the energy yield is low. The product is pyruvate. In the presence of oxygen, the pyruvate is enters the Kreb's cycle where the energy yield is much greater. When oxygen demand exceeds supply, (like hard exercise), i.e. above maximum oxygen delivery, the pyruvate is shunted to another pathway producing lactic acid. This takes place within the muscle cell. Blood lactate levels will then rise. … "One more thing... the chemistry you learned about leading into biochemistry is far more complex." I've studied biochemistry as well. Before that, I was a grade A student in Chemistry throughout high school until entering Medical School. Never has it been said that Potassium/Sodium ions react with acid. I do not contend the practical advice given. It was just the rationale behind the advice made me feel people might unknowingly be misinformed. .. . . "Bananas aren't just good for monkey's you know." Isn’t enlightment wonderful?
Re: BAD NEWS FOR KELVIN I'm ashamed of my physiology studies in PE as I already forgot the things I learned. Thanks a lot for this excellent lesson. If you do not mind I'll have to ask you about the Krebbs cycle. It was something I could never been able to understand during my school days.
Re: Practical advice Doh ! I came into this thread late. Looks like most badminton players have keen interest in biochemisty, including myself. Don't worry cheung, i can't match your credentials I just know enough biochemisty so that my doctor visits are for checkups.
Re: BAD NEWS FOR KELVIN That's ryt, seeing that u have typed everything out already, I won't bother then.
Round up There are too many agrument. But just answer my questions : 1. Should i drink Sport drinks like Sportade or gatorade?? 2. Should i eat banana ?? 3. Should i get Potassium supply?? 4. should i eat Power bar which flavour is the best ??? 5. does drinking coffee affect ur performance??? Thanks.
hehehe... Thanks for your update. Also thanks for the new info!!! Now I've got more knowledge to go on.
Re: Round up 1. Should i drink Sport drinks like Sportade or gatorade?? 2. Should i eat banana ?? 3. Should i get Potassium supply?? 4. should i eat Power bar which flavour is the best ??? 5. does drinking coffee affect ur performance??? Here's your answers: 1) If you are in very hot weather (which will make you sweat more and lose salt from your body) or are doing a rather lengthy session of strenuous exercise, sports drinks are ok during or after exercise, although as mentioned previously, diluted fruit juice is just as effective at replenishing carbos. Also, per Mag's advice, salt can apparently have improve the level of carbohydrate intake. 2+3) Yes, bananas are certainly healthy for you, the same with all fruit, and they contain lots of potassium (I think tomatoes are also a good source of potassium). I found that eating a banana a day, in addition to my regular diet, usually kept me from cramping up, so I didn't usually take any potassium supplement pills. 4) I'm not that confident that Power Bars or competing energy bars will have much of an effect on sports like badminton, as opposed to more endurance oriented sports like marathon running and cycling, except for carbo loading. I can probably count on one hand the number of Power Bars I have consumed in my life. Just for carbo loading, cereal bars, granola bars, etc..., probably do just as good of a job, are much less expensive and usually taste a whole lot better than most energy bars. If you need a quick pick-me-up during a match, you might want to try one of the newer carbo gels, such as Goo, which came out two or three years ago. I have never tried them, but they are supposed to metabolise the carbohydrates faster than more solid foods such as the various bars. 5) Caffeine can have a temporary, energy-boosting effect on sports performance, but I would not bother with it unless you had that date of your dreams, were out until dawn and had a tournament that morning without getting any sleep. Although for decades professional cyclists have been quaffing a shot or two of expresso during a race, I think caffeine can have some more pronounced effects on younger people - see your physician first. I don't know if there are any caffeine limits in badminton, but there are restrictions in tennis-in the fall, a player on the WTA was tossed out of a tournament for having too excessive caffeine levels.
Re: Round up 1) The maximum absorption of fluid from the intestine is 1.2 litres per hr. The maximum loss of fluid via sweat is approx 3 litres. So it would be difficult to fully replace the fluid when in a tropical country and playing without air con. Take a drink before playing was an excellent piece of advice. 4) Agree. Don't eat too much before playing.The insulin response from eating sugar will decrease your sugar levels. Also, once the sugar is in your intestine, it could theorectically make your dehydration worse by drawing water from outside the intestine to inside before it has been absorbed. What flavours are available? 5) Caffeine also make you produce more urine unnecessarily and your dehydration will get worse.
