What the Levels and Zones
Mean...
This is where things get a little confusing! Mainly due to
the fact that heart zones became mainstream before power levels.
That aside, we all feel we need a reference point; and that's
what these descriptors bring, reference points for us all.
Heart Zones
Developed by Peter Keen, when working with Chris Boardman,
at British Cycling in around 1997. Heart Zones start at number "zero" because in recovery mode,
you're not training.
Initially there were four levels, that
subsequently expanded to six. As the training effect
doesn't begin until you are above 60% of your heart rate
capacity, zero seemed to be a good place to start; so the first
"training zone" was allocated number "one".
If you don't know your resting, and
maximum heart rate, you don't
have accurate heart rate zones. If you don't know them
don't guess, and don't even think of using the 220 minus your
age. I'm 52 and my max heart rate is 234 bpm.
Theoretically I should be 168, I can get that pumping my
tyres up.
Power Levels
Developed by Dr Andrew Coggan and Hunter Allen, had to
start somewhere and "zero" wasn't it. If the bike's moving
it's being "powered", therefore it's only reasonable that this
level of effort is given a "one".
The power levels below are taken from each
individual rider's
Functional
Threshold Power (FTP) reference point. If you
don't know your FTP you don't have accurate power
levels to work from. Again, it ain't worth guessing, if
you spent a couple of grand on a power meter, take a test and
get an accurate answer.
To prevent confusion, these de facto power
descriptions are taken from Coggan and Allen's Training Peaks
(WKO+ software) references.
Williams' Whinges
For those without a power meter or heart monitor (you're in good
company Eddy Merckx and Bernard Hinault never used them either)
we need something to "describe" how the sessions we undertake
should feel.
They range from "easy" to "extremely hard" and
are nothing more than a collection of phrases to put a sensation
to the level of suffering you should be enduring when
undertaking your training sessions.
Although some people believe the
Blitzer's
to be seriously under-cast in their "comfortably hard" category.
These are just for your perusal, nothing
more...

Active Recovery doesn't
have to be on the bike
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Power Zone 1 ~ Active
Recovery ~ Easy ~
HR Zone 0 |
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Power @ <55% FTP ~ HR <60% max
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"Easy spinning" or "light pedal pressure", i.e., very low level
exercise, too low in and of itself to induce significant
physiological adaptations.
Minimal sensation of leg effort/fatigue. Requires no
concentration to maintain pace, and continuous conversation
possible. Typically used for active recovery after strenuous
training days (or races), between interval efforts, or for
socializing.
Short recovery rides.
Characterised by a low heart rate, low perception of effort,
resting blood lactate levels. Daily activity at moderate
intensity corresponds to the general physical activity during
daily tasks.
For beginners and
sedentary individuals daily activities improve readiness for the
fitness-related exercise. For experienced exercisers this
type of activity, or an hour on the beach with the dog, can be
used for recovery purposes. Recovery of the mind as well
as the body; heaven...
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GP Morbihaniase ~
Final climb warm up
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Power Zone 2 ~ Endurance ~
Comfortable ~ HR Zone 1 |
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Power @ 56% - 75% FTP ~
HR 61% - 65% max |
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"All day" pace, or classic long slow distance (LSD) training.
Sensation of leg effort/fatigue generally low, but may rise
periodically to higher levels (e.g., when climbing).
Concentration generally required to maintain effort only at
highest end of range and/or during longer training sessions.
Breathing is more regular than at level 1, but continuous
conversation still possible.
Frequent (daily) training sessions of moderate duration (e.g., 2
h) at level 2 possible (provided dietary carbohydrate intake is
adequate), but complete recovery from very long workouts may
take more than 24 hours.
Basic endurance
training improves general training ability by strengthening
heart as well as other cardio respiratory functions.
Development of
economy and efficiency with very high volume, low stress work.
Very long sessions improve the combustion and storage of fats.
This type of exercise is suitable for the beginners especially
for weight management purposes. For more experienced
exercisers it is a good alternative training method. This area
of training is used to increase endurance as you are
predominantly burning fat as a fuel.
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Dianne, hardly comfortable ~ Pierre Chany
Sportive
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Power Zone 3
~ Tempo ~ Hardly Comfortable ~ HR Zone 2 |
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Power @ 76% - 90% FTP ~
HR 66% - 75% max |
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Typical intensity of fartlek workout, 'spirited' group ride, or
briskly moving pace line. More frequent and greater
sensation of leg effort and fatigue than at level 2.
Requires concentration to maintain alone, especially at upper
end of range, to prevent effort from falling back to level 2.
Breathing deeper and more rhythmic than level 2, such that any
conversation must be somewhat halting, but not as difficult as
at level 4.
Recovery from level 3 training sessions more difficult than
after level 2 workouts, but consecutive days of level 3 training
still possible if duration is not excessive and dietary
carbohydrate intake is adequate.
Aerobic training
improves cardio respiratory functions as well as general aerobic
capacity. This type of exercise is safe and it is also
suitable for beginners.
Again this area of
training is used to increase endurance, in this area of training
you are still burning fat, but not at the same efficiency as
Zone 1.
The bulk of your
early training phases should be taking place in Zones 1 & 2.
Development of economy and efficiency with high volume, moderate
stress work. An important intensity for establishing a firm base
for all riders.
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Making it comfortably hard ~ Ronde sur Sarthe
Sportive
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Power Zone 4 ~ Lactate
Threshold ~ Comfortably Hard ~ HR Zone 3 |
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Power @ 91% - 105% FTP ~
HR 76% - 82% max |
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Just below to just above TT effort, taking into account
duration, current fitness, environmental conditions, etc.
Essentially continuous sensation of moderate or even greater leg
effort/fatigue. Continuous conversation difficult at best, due
to depth/frequency of breathing.
Effort sufficiently high that sustained exercise at this level
is mentally very taxing - therefore typically performed in
training as multiple 'repeats', 'modules', or 'blocks' of 10-30
min duration.
Consecutive days of training at level 4 possible, but such
workouts generally only performed when sufficiently
rested/recovered from prior training so as to be able to
maintain intensity.
Development of
aerobic capacity and endurance with moderate volume work at a
controlled intensity. Possible on a turbo trainer for up to one
hour in bad weather.
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Tranche D'Arenberg
~ Monumental Paris Roubaix
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Power Zone 5 ~ VO2max ~ Hard ~
HR Zone 4
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Power @ 106% - 120% FTP
~ HR 83% - 89% max |
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Typical intensity of
longer (3-8 min) intervals intended to increase VO2max.
Strong to severe
sensations of leg effort/fatigue, such that completion of more
than 30-40 min total training time is difficult at best.
Conversation not possible due to often 'ragged' breathing.
Should generally be attempted only when adequately recovered
from prior training - consecutive days of level 5 work not
necessarily desirable even if possible.
Training at this
intensity improves ability to utilize lactate. This makes
it possible to exercise at high performance level for longer
duration without oxygen debt. Training at this intensity
requires earlier exercise experience.
Training improves
performance capacity needed in competitive situations. Once into
this area it is essential that the body is ready, ie. warmed up
& fit enough. Too much at this level will lead to staleness.
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Last Climb Attack ~
Jean Cyril Robin Sportive
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Power Zone 6 ~ Anaerobic Capacity ~ Very Hard ~ HR Zone 5 |
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Power @ 121% - 150% FTP ~ HR 90% - 94% max
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Short (30 s to 3 min), high intensity intervals designed to
increase anaerobic capacity.
Heart rate generally not useful as guide to intensity due to
non-steady-state nature of effort.
Severe sensation of leg effort/fatigue, and conversation
impossible. Consecutive days of extended power level 6 training
usually not attempted.
Exercise at near
maximal intensities is anaerobic, which means that muscles need
more oxygen than can be transferred. This type of training is
suitable only for the experienced exercisers.
Training improves
maximal performance capacity. It is impossible to hold
this level for any length of time so for long endurance sports
it is not necessary to do great amounts of exercise in this
area. It will result in raising of anaerobic threshold,
improvement of lactate clearance and adaptation to race speed.
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Coeur Bretagne Sprint ~
Stressing the neuromuscular system for real...
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Power Zone 7 ~ Neuromuscular ~
Extremely Hard ~ HR Zone 6 |
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Power @ 151% FTP > Max Peak
Power ~ HR 95% > HRmax |
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Very short, very high intensity efforts (e.g., jumps, standing
starts, short sprints) that generally place greater stress on
musculoskeletal rather than metabolic systems.
Power useful as guide, but only in reference to prior similar
efforts, not as a level to attain. These efforts are 100% of
your output. When the quality of the effort drops, stop doing
them. You risk muscle damage and injury and are not getting a
return on your training investment.
This type of training
is suitable only for experienced exercisers. High
intensity interval training to increase maximum power and
improve lactate production or clearance. Should be done
only when completely recovered from previous work. Intensity
should be such that the effort can just be held to the end of
the interval.
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Nothing like a win to start the season...
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Potential Athlete Training Zones |
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The Proviso...
Please don't think that you're heart rate and power files will
correlate neatly in to the boxes provided. Everything we
do is linear and forms a continuum; you don't go from being one
watt (or heartbeat) under threshold, to one over and move from
one box to another.
229 watts isn't a
fully Tempo session and 230 doesn't magically become a Lactate
Threshold session. It's a very blurred line!
Also, your heart rate
won't exactly follow your power lines on a daily, weekly or
monthly basis; 280 watts might be 175 bpm one day and 170 the
next or even 180. So you could be in different "boxes" for
heart and power depending on your day, fitness, tiredness,
environment etc.
Hopefully I've not
made a confusing situation worse. If I've not explained
myself clearly, or you'd like any clarification, please feel
free to get in touch... |
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