By Dr. Lonnie Lowery
Okay, we're rested and recovered.
On to the nitty gritty. Can we, as mere humans, achieve any level
of reptilian brutality?
The answer is obviously yes.
The Yeti did it and so can you - if
you're willing to eschew overall fitness for a brutal, singular
goal. In a twisted sense, I still respect this, even if I don't
openly recommend it. Fortunately, rather than waiting thousands
of years, individual humans can acquire a degree of specialization
within a matter of weeks. They're not genetic mutations, but rather
physical adaptations.
In fact,
I think one of the reasons humans have survived to dominate the
planet - aside from intelligence - is our amazing adaptability.
By asking one's body to perform specific tasks, the structures and
metabolic pathways actually change to meet the need. So, Mr. Alien
observer, starting with a ho-hum middle-of-the road template isn't
so bad on a planet with radically varying environments.
Anaerobically, development of strength
and speed come from, well, using one's strength and speed. High
intensity interval training (I enjoy outdoor morning sprints to
break up treadmill monotony) is one way to "become the crocodile".
So are Tae Kwon Do techniques when done explosively and regularly.
You'll change biomechanically, biochemically
and you'll eventually change on a tissue/ structural level. Visually
compare Ben Johnson to an elite marathoner; obvious differences
clearly reveal who can destroy whom. It may take several weeks or
even months but anything worthwhile takes time and effort.
We have to use prudence, however.
We're just humans after all and our bodies - although malleable
- can be fragile. Even for the croc, vicious aggressive explosive
movement takes its toll - both acutely and chronically.
Getting hyper-intense
calls for equal amounts of recovery, no matter the species.(2, 10,
11) Otherwise, however brief it may be, ongoing intensity
can induce "sympathetic type overtraining" in people.(6)
For physique/ performance athletes, I'd suggest limiting sprints
and bike sprints to no more than three times weekly.
For ectomorphs (thin angular guys),
only twice. Of course, this is different from that prescribed for
sprint athletes, whose programs get elegantly complex to maximize
a single adaptation (moving from point A to point B in as little
time as possible). Physique aesthetics are non-issues for them.
One way to assess power training (in
its true sense) is to estimate your anaerobic threshold. By the
time blood lactate is screaming, you've basically rifled through
your creatine phosphate/ ATP system, and are approaching more of
a "middle duration" type of metabolic scenario.
Glycolysis is supplying about 80-90
percent of ATP after about 90 seconds, or 16 reps in some research
(yes, sooner than formerly thought).(20) Measurement methods include
onset of blood lactic acid (OBLA), assessed by finger prick test;
and perhaps even respiratory threshold (although it has central
nervous system drivers, too).
Admittedly, the portable lactate analyzer
has been questioned (17) but is affordable. The respiratory threshold,
on the other hand, is simply the point at which breathing rate and
depth increase dramatically when ramping up from jog to sprint.
Training very near this threshold pushes us to become better at
intense activity.
Of course,
we're also after strength. Upper body strength is not
only critical to the explosive early seconds in a 100-meter dash,
but has obvious other benefits in life. Self defense, daily activities,
social dominance, etc. And I'm not just talking creatures of the
savannah here. What's that famous quote? "First be a good animal."
So how does one get it? Heavy lifting
and "speed work", primarily with free weights.
Accessory movements too. It's no news
that weight lifters exhibit a definite enlargement of muscle mass,
particularly of fast twitch (Type II) fibers.(21, 22) We won't quibble
over Type IIa vs IIb right now. As Rob "Fortress" Fortney
wrote in Accidental Muscle on T-mag a while ago, a power training
lifestyle leads to a thick physique, even if said physique is not
your goal. Form follows function.
Toward this end, I have long been
a fan of multiple sets of 3 rep-maximums; when my joints are agreeable,
I tend to focus on these exclusively during specific days of the
training cycle - or at least do some 85-90% triples. For efficiency,
I try to get in some speed work during the lighter warm-up sets.
A separate day devoted solely to muscular power (force/time) may
be better, but I'm about bodybuilding, after all, and thus draw
the line somewhere.
Listen, there is a ton of information
here and on like-minded sites regarding programs to develop speed
and power. (Regarding underlying mechanisms, I also recommend the
text by Komi for hardcore muscle geeks, see references below.)
Plyometrics, traditional powerlifting
speed work, escalating density training, accessory movements, you
name it. Go dig around, taking in everything with a grain of salt,
or talk to Charles Staley directly. The
important thing is to learn with a somewhat skeptical mind.
Cautiously used, the web is a real resource. Authors like me don't
want to feel stupid for writing articles that get lost or overlooked
in cyberspace after a bloody week or two!
So
we've got sprints to develop
speed, heavy weights to build muscles and speed work/ plyometrics
to improve the neurological wiring that innervates those larger
muscles. Now what about other lifestyle factors?
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In many ways it would be invalid
(and pretty nasty) to imitate the environmental conditions
in which a croc lives.
I mean, do you want to a lifestyle
in which you wallow in swamps all day among hoards of flies
and mosquitoes? Still, we might take some cues from these
beasts of power.
For example, what is it
that these aggressive anaerobic machines eat? Suffice
it to say that it is not celery. A gross review of nature
suggests that grazing placidly on plants is usually the realm
of the meek herbivore. And to contradict a popular movie:
"herbivores are food, not friends".
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Meat provides not only quality protein,
as most of us realize, but also is a very rich source of other nutrients.
Let's forget about man-made (or woman-made) concepts such as "nutrient
density", whereby a food's value is determined by dividing
its micronutrient content (vitamins, minerals, phyto- or zoo-chemicals)
by its total calories.
That may be valuable to dieters or
those trying to limit caloric intake but it also favors near zero-cal
foods like broccoli. Dividing its calcium content, for example,
by its near-zero kcal content makes that broccoli look pretty good.
But fancy
ratios aside, it doesn't hold a candle to the gross amount in good
old animal-source (but calorie-containing) milk. This
is to say nothing of bioavailability. Similar things can be said
of most vitamins and minerals (too lengthy to list and discuss here)
when we examine meats vs. plants.
Think about it: why graze all day
when as a carnivore you can let the lower critters on the food chain
do the work? They concentrate the environmentally-dilute nutrients
in their tissues and you eat that store house of nutrition.
What does this have to do with
humans?
On a gross level, not just survival
but development of animalistic size and power depends upon nutrient
and even kcal load. Again, a quick review of most vitamins and minerals
reveals that they are in great abundance in animal flesh. Sure there
are exceptions. Of course meats can't be solely consumed by a human;
that's folly - for environmental and nutritional/ biological reasons.
But like a croc who depends upon brief bursts speed and power, a
human adapting in that direction needs large gross amounts of nutrients
too. Those nutrients are plentiful in the meat of other creatures.
But let's
be fair. We cannot forget to put back all the muscle carbohydrate
(glycogen) that we hammered-through during aggressive anaerobic
endeavors.
Typical bodybuilding exercise can
wipe out a third of our stores.(5) Moreover, intense interval exercise
may be even more demanding/ depleting than the continuous type.(18)
Carbs are simply what we humans use during explosive anaerobic metabolism.
Meat doesn't really provide any. This is where potatoes, fruits,
some veggies, beans and grains come in to play. And for post-workout
periods, a 4:1 ratio of carbs-to-protein is important to recovery
(23), although those of us who are "dieting" may wish
to curb this back to 2:1 or even 1:1.
At this "peri-exercise"
time, liquid-source, high-glycemic carbs and whey protein may get
to needy muscles even faster than solid food (like meat).
But let's not over-emphasize. Whether
solid or liquid intake, glycogen resynthesis doesn't necessarily
differ over the post-exercise period.(9) And mammals can actually
adapt rapidly to repeated bouts of intense exercise, "learning"
to fully restore glycogen from endogenous (non-dietary) sources.(16)
That's right; talk about "becoming an anaerobic machine"!
Thus, for the intense "croc-minded" among us, carbohydrates
- although important - don't supercede the benefits and nutrient
richness of meats during most of the day.
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Regarding supplements other
than (carb-plus-protein) recovery drinks, creatine monohydrate,
bicarbonate and potentially even carnosine (or more likely
beta alanine) also support anaerobic speed and power. These
serve as circulatory and/ or myocytic (muscle cell) acidity
buffers (15) and let's not forget that acidity build-up
is a primary culprit in shutting down intense bursts of
activity.
Of course, creatine also
pulls double duty, re-supplying that essential ATP pool.
And interestingly, meat supplies all of these buffers -
just not in supplemental quantities.
And so we have toured the
reaches of comparative muscle biology (in our own twisted
way) and how we endeavor to be more croc-like, realize it
or not. We may as well "get brutal and get into it"
as a famous Austrian once suggested. Thanks for indulging
my inner geek by coming along.
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About The Author
| Dr. Lonnie Lowery
is an exercise physiologist, nutrition professor and former
competitive bodybuilder living in the Midwest. Although there
is a waiting period, Dr. Lowery does accept a minimal number
of phone consultations set up through Staley Training. He can
be reached at lonnie@staleytraining.com. |
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References / Further Reading:
| 1. |
Bell, R., et al.
Muscle fiber types and morphometric analysis of skeletal muscle
in six-year-old children. Med Sci Sports 1980; 12:28. |
| 2. |
Bennett, A. Exercise
performance of reptiles. Adv Vet Sci Comp Med. 1994;38B:113-38. |
| 3. |
Dudley, G., et
al. Muscle fiber composition and blood ammonia levels after
intense exercise in humans. J Appl Physiol 1983; 54: 582. |
| 4. |
Dudley, R. Limits
to human locomotor performance: phylogenetic origins and comparative
perspectives. J Exp Biol. 2001; 204(Pt 18):3235-40. |
| 5. |
Essen-Gustavsson
B, and Tesch, PA. Glycogen and triglyceride utilization in
relation to muscle metabolic characteristics in men performing
heavy-resistance exercise. Eur J Appl Physiol Occup Physiol.
1990;61(1-2):5-10. |
| 6. |
Fry, A., et al.
Catecholamine responses to short-term high-intensity resistance
exercise overtraining. J Appl Physiol. 1994; 77(2): 941-6. |
| 7. |
Harrison J. and
Roberts, S. Flight respiration and energetics. Annu Rev Physiol.
2000; 62:179-205. |
| 8. |
Hultman, E. and
Spriet, L. Skeletal muscle metabolism, contraction force and
glycogen utilization during prolonged electrical stimulation
in humans. J Physiol. 1986 May;374:493-501. |
| 9. |
Keizer, H., et
al. Influence of liquid and solid meals on muscle glycogen
resynthesis, plasma fuel hormone response, and maximal physical
working capacity. Int J Sports Med. 1987 Apr;8(2):99-104. |
| 10. |
Kellmann, M. (Ed.).
Enhancing recovery. Human Kinetics: Champaign, IL; 2002. |
| 11. |
Kentta, G., and
Hansen, P., Overtraining and recovery. A conceptual model.
Sports Med. 1998; 26(1):1-16. |
| 12. |
Komi, P. (Ed.).
Strength and power in sport. Blackwell Science: Oxford; 1992. |
| 13. |
Lehninger, A.,
et al. Principles of Biochemistry. Irving Place, New York:
Worth Publishers 1993; 417. |
| 14. |
Mathieu-Costello,
O., et al. Structural basis for oxygen delivery: muscle capillaries
and manifolds in tuna red muscle. Comp Biochem Physiol A Physiol.
1996;113(1):25-31. |
| 15. |
Parkhouse W. and
McKenzie, D. Possible contribution of skeletal muscle buffers
to enhanced anaerobic performance: a brief review. Med Sci
Sports Exerc. 1984 Aug;16(4):328-38. |
| 16. |
Raja, G. Repeated
bouts of high-intensity exercise and muscle glycogen sparing
in the rat. J Exp Biol. 2003; 206(Pt 13):2159-66. |
| 17. |
Robergs, R. ASEP
National Mtg., 2002. |
| 18. |
Shi X. and Gisolfi,
C. Fluid and carbohydrate replacement during intermittent
exercise. Sports Med. 1998 Mar;25(3):157-72. |
| 19. |
Spriet, L. Anaerobic
metabolism in human skeletal muscle during short-term, intense
activity. Can J Physiol Pharmacol. 1992 Jan;70(1):157-65. |
| 20. |
Spriet, L., et
al. Anaerobic energy release in skeletal muscle during electrical
stimulation in men. J Appl Physiol. 1987 Feb;62(2):611-5. |
| 21. |
Tesch, P.A. and
Larsson, L. Muscle hypertrophy in bodybuilders. Eur J Appl
Physiol 1982; 49: 301. |
| 22. |
Thorstensson, A.
Muscle strength, fiber types and enzyme activities in man.
Acta Physiol Scan 1976; (Suppl): 443. |
| 23. |
Williams, M., et
al. Effects of recovery beverages on glycogen restoration
and endurance exercise performance. J Strength Cond Res. 2003
Feb;17(1):12-9. |
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