I'm A Radiator...So Are You

It was warm and sunny, last Sunday morning, as we began our eight-mile jaunt.  By the time Charley, Teri, Suzanne and I reached our bottle stash at two miles I knew the middle four miles were going to be, er, interesting.  As we approached the turn-around point, Teri mentioned something about the heat and asked where the (moving) “air” was.  Fortunately we realized the reason for the “warmer” conditions had to do with the fact we were walking with a breeze to our back.  Immediately we began to feel, perhaps not more comfortable, but at least a little less-overheated.

We’re not running at a fast pace this time of the year, so I have more time (and oxygen going to my brain) to think about things, especially when people pass by on their run/walk/bike.

‘Why is it,’ I asked to no one in particular, ‘I see a whole lot of cyclists training for an upcoming triathlon with empty bottle cages on their bikes; why there are no water bottles in those cages?’

Perhaps they are a special breed of triathlete; they are part camel and don’t need water.

Perhaps they have never had a flat tire or a mechanical situation they could not fix on their own, so they didn’t have to wait for bike support, or worse, have to walk their bike for a long distance.

Or, perhaps it’s simple ignorance.

I’m a radiator.  And if you’re human so are you.  And when that cooling system fails, we can, too.  A 160-pound person participating in a high-intensity sport can have their ability to perform (power) limited by almost 50 percent by a four-pound decrease in body weight.  That same 160-pound athlete, if they’re participating in an endurance event, can see a 5-percent decrease in running efficiency with the same amount of fluid loss.  Take another pound or two of body weight away and that drop in running efficiency goes up to 30 percent, depending on the event distance; the longer the distance means a greater decrease in efficiency

And that same 160-pounder, should they lose 8 or 9 pounds of fluid, can find their normal endurance to do a low-intensity activity, such as walking or easy cycling, cut in half.

I can speak from hard experience that hydration, especially in the summer, is important.  A near-fainting episode during an aerobics class two decades ago proved to me just how a “small” fluid loss can lead to a big problem.  I never thought until that time about how much I did sweat during workouts.  But I’m reminded every time I spin, run on a treadmill, or hit the cardio machine at my gym.  That puddle was originally inside of me, part of my blood which was sent to the capillaries near my skin. 

Unlike our automobiles we don’t have a sealed cooling system.  Our sweat glands, nostrils, mouth and (to a degree) our genitourinary system leak like the proverbial colander.  Sweating decreases blood volume, which means our blood cells have less fluid through which to travel and becomes more thick.  And even if we’re not noticeably sweating on colder days we still lose fluid by exhaling water vapor.

So we need to put fluid back in to replace what is lost. 

I recently mentioned that exercise activity (workouts) of lower intensity, or less than an hour in duration, can be served by plain (cool) water as tolerated during the activity.  Don’t forget about post-workout replenishment by the 150 percent of body weight change (loss) during the exercise period guide.  Don’t feel like taking it all in immediately?  No problem.  Just make certain to drink over the next few hours as tolerated. 

Workouts which go beyond 60 minutes need not only rehydration, but replacement of carbohydrates, protein and electrolytes which are being used.  Every person is an experiment of one; every person has a favorite sports beverage for their long workout.  My recommendation is to find the beverage which best suits your palate, your gut, and your wallet, in that order; the best sports drink in the world for you is the one which ends up in your gut and not in your sports bottle.  The beverage manufacturers know this, also; one particular sports drink, until about two decades ago, tasted more (to this writer’s palate) like powdered drink mixed with seawater.  At that point they developed several different flavor combinations (including iced tea, which I loved) and adjusted the level of salts and sugars in the formula.  (Add a marketing campaign with a dominant basketball player, and the rest, as you say…)

While you might not necessarily think you need to rehydrate on the run it’s always better – as people like to say – to have it and not need it, rather than need it and not have it.  Be prepared.

All Stressed Up And Nowhere To Go

Ever have one of those mornings when you didn't feel like getting out of bed for the morning run? You talk yourself out of bed and into the morning pre-run ritual. You might even muffle the little voice in your head long enough to step out the door. Maybe you get a mile up the road before SOMETHING finally clicks in your head and you receive the urgent message. You know the one:

What. Are. You. Thinking?

There are mornings, sometimes days, when our body tries to inform us it hasn't completely recovered from the stress of days past, which may or may not include our training. A heart rate monitor is an inexpensive tool to determine or predict whether we've endured a little too much stress.

I've used a heart rate monitor as part of my training for the past six or seven years. It's a simple tool to figure out your resting heart rate first thing in the morning. Some folks like to use the monitor to maintain their run pace. The heart rate monitor can also be used to help quantify a workout effort.

An athlete's resting heart rate can show the progression of fitness, as well as the onset of overreaching (not so good) or overtraining (not good at all). Some will place the heart rate strap when they go to bed, then turn on the heart rate receiver for a minute after waking up. Once the athlete learns their average heart rate, those mornings when sudden spikes of five-or-more beats-per-minute are read can tell the athlete about residual stress, or that the body has not completely recovered.

A resting heart rate can also be checked just as easily by placing a finger on the carotid artery and counting the pulses for a minute, but machines are more likely to be honest than human beings about the numbers.

I know folks who like to pace their runs based on a target heart rate zone. I prefer to go by feel than by heart rate for a number of reasons:

First, the heart is a demand pump. The oxygenated blood is sent to the places the body informs the brain it is most needed. That means there's a lag time between an effort is performed by the muscles and when the blood arrives to replenish the muscles...kind of the reverse of the way our automobile's carburetor works.

Second, depending on hydration (or dehydration), weather conditions, fitness, etc., a particular pace effort can vary in heart rate. A six-minute-per-mile pace is not always going to equate to a 145 beat-per-minute rate, just to give an example.

Ever ask someone how difficult a particular workout was? How do they usually describe it?

Dr. Eric Bannister researched training impact, scoring by percentage of maximum heart rate, multiplied by duration. Each ten percent above the fiftieth percentile earns a single point for each minute of effort. So a sixty-minute run at fifty percent of max heart rate would be a training impact score of sixty. That same sixty minutes at sixty percent max heart rate would score 120, a 180 training impact score would be seventy percent max for sixty minutes, and so on. Most good heart rate monitors have a function which informs the user how long their effort was in a particular range, or provides the average heart rate for the workout period.

Bannister and others also researched whether the Borg (perceived effort) scale of one-to-ten could be used to score training stress. They found most experienced athletes scored their perceived effort almost as accurately without a heart rate monitor; an athlete who scored their workout as a six-out-of-ten was found to have had exercised at around sixty percent of maximal heart rate. So you don't necessarily have to use a heart rate monitor, but you can get deeper into the details with one on your wrist/chest.

Once the workout is scored, the question soon follows as to what that score means to the individual.

Hunter Allen, one of the developers of the Training Peaks workout software, in a recent article, correlated training stress scores to levels of stress and need for recovery. He wrote that scores of:

- less than 150 = low stress. Recovery from this effort is generally complete by the following day.

- 150-to-300 = medium stress. Some residual fatigue. Generally complete recovery by the second day after the workout.

- 300-to-450 = high stress. Residual fatigue remains even after two days.

- more than 450 = very high stress. Residual fatigue over the next several days is likely.

While it's important to know how hard we run or work out, it's more important to realize gains in strength, speed, endurance and overall fitness come as we allow our body to properly recover from the effort. Once we completely recover we can go out and repeat the stress again, which makes our body more resistant to that same level of stress.

When The Furnace Is Hot

I haven't always been anti-morning workout. When there hasn't been a rush to get in to work the run has (usually) gone well and I've loved life. I can swim in the morning and be presentable, but I'm not one of those folks who can run from 6am to 7am, hit the shower, jump in the car and be at work by 8am. Not in a state which endears me to my fellow workers.

My friends and my coaches marvel at my "fairly-efficient cooling system." But until they tried working out in the morning, past supervisors and co-workers failed to understand or appreciate such an "efficiency." They consider a "sweating like a farmhand" appearance in the most extremely air-conditioned office environments a failure in personal hygeine. I looked the same thirty minutes after a run, after a spinning class, and - unfortunately - after a shower.

It wasn't always like this for me. In southern New Mexico humidity is a meteorological aberration. Whatever sweat hits the air is almost immediately evaporated. I didn't know what water vapor was until I went to boot camp in Texas; why was it I couldn't seem to get DRY after taking a shower? But the humidity of the Gulf Coast makes any other environment in which I've run seem rather arid. Miscalculate the amount of time necessary for a complete cool-down and it's likely you'll be in a drippy state in the office, especially if you have a heavy sweat rate.

Rather than deal with the symptoms, let's take a look at what I feel is the cause.

Exercise (Post) Oxygen Consumption, (EPOC) is one of the terms used to describe the number of calories burned in the period following a bout of exercise. The specifics of the duration and amount of calories burned are one matter - a 20-minute run at 80-percent of maximal effort may continue to burn calories for a period lasting from 30 to 105 minutes.

So, that means the furnace is still hot - heat is being moved away from the heart, brain, liver, and other vital organs - during that period of time.

There remains that other matter of "really" cooling off, isn't there?

Most coaches use the term "cool down," when they probably really mean "warm-down." It's much like when we turn off the ignition on our automobiles; the engine ceases running, but the cooling fan continues to operate. That's a period of time we probably wouldn't want to sit on the hood in a pair of running shorts...at least not until the temperature drops a little more.

So today, rather than immediately crawl into the air-conditioned comfort of my home and ditch my soggy togs, I decided to take a 15-minute stroll with my dog, then relax indoors for another 15 minutes before hitting the shower.

Eureka! Relative dryness on the way to work, and while in the office. after taking care of my personal hygeine matters. Time between workout and work can not only make us feel better but look better during the remainder of the day.

So, what tricks or tips would you recommend for the time-pressed runner?

Barry White? We're Talking Barry White!?

While R&B/disco great Barry White has no longer been with us for three years, there's still an opus of work which has not seen the light of day. Well, not any longer. His long-time friend & producer saw fit to release a three-disc collection of alternate tracks, unreleased tunes & (to borrow from Steve Taylor) some stuff which initially didn't make the cut...just in time to celebrate what would have been Barry's 65th birthday.
The interview on NPR's Morning Edition brought out some really neat stuff which could relate to your own training:

1. If you're smart enough - knowing your strengths & limiters - you can take anything & make it your own.

One of White's greatest songs was originally supposed to be a country song, called 'My First, My Last, My In-Between.' Expand what comes between the first & last to everything, hey, Barry, this turkey just might fly! NPR's Steve Inskeep & White's producer then went off the rabbit trail & into the weeds, mentioning the potential of taking a song as simple as Mary Had A Little Lamb & Barry Whiting it. I almost had to pull the car over, I was laughing at the sound in my mind.

The smart athlete considers a training plan more as a road map & less as an itinerary, because we are all an experiment of one.

2. Do One Thing. Do It Well.

When you listen to Barry White's songs, they are all about love between two people. There are no break-up songs, no songs about fighting or the hard parts of a one-to-one emotional relationship. Okay, that's why I could never stand to listen to more than one or two Barry White songs at a sitting. It was kind of like doing lunch at an all-you-can-eat pizza joint; the first plate was fantastic, the second one pretty good...after that it's self-abuse.

Focus on a particular range of distances. Try the others if you like, but keep it in perspective. While you can not suck at most everything, you aren't going to be good at everything...all at one time.

So, here's to you, Barry. We can learn how to be good athletes, and good people, perhaps, by listening to your stuff every so often. Oh, yeah...I never thought I'd hear a better version of Billy Joel's Just The Way You Are, but somehow you did it.