In a recent article Paul Hobrough gave
an interesting definition for fitness that applies most definitely to
ultra-marathon and endurance runners. He stated that “your fitness is measured
by the speed at which that muscle fiber can recover before it is needed again”
(Coyle 2012:67).
This differs to a great extent from
the standard definition of fitness published by the U.S. Department
of Health and Human Services (USDHHS), and which has become the benchmark for
fitness. According to the USDHHS, fitness is “a set of attributes that people have
or achieve that relates to the ability to perform physical activity” (USDHHS 1996). This
definition defines fitness within five core components:
1. Cardiorespiratory endurance, which is
in essence the ability of the heart and lungs to supply oxygen rich blood to
the muscles to sustain activity (USDHHS, 1996 as adapted from Corbin &
Lindsey, 1994). It is my opinion that most, if not all, ultra-marathon athletes
have this element well under control. Months, if not years, of aerobic training
has developed lung capacity which enables an individual to inhale a larger
volume of oxygen, and heart development means that oxygen rich blood gets to
the muscles when it is needed. For most runners this is the foundation upon
which they build their training.
2. Muscular strength is the
second element and is defined as the “ability of the muscle to exert force
during an activity” (USDHHS, 1996 as adapted from Wilmore & Costill, 1994).
Resistance training is the primary source of muscle strength development. This
comprises weight training targeted at specific muscle groups.
3. Muscular endurance is the
third element and is the “ability of the muscle to continue to perform without
fatigue” (USDHHS, 1996 as adapted from Wilmore & Costill, 1994). Muscle
endurance is improved through sustained cardiorespiratory activities such as
walking, jogging or cycling. The long-runs, in time or distance, which forms
part of most training programs as well as hill training sessions, all work
together to improve muscle endurance. As ultra-marathon or endurance runners we
are used to training in this ‘zone’. We log many hours each week and continue
to increase our distances to ensure that we develop and remain in a relatively
peak condition.
4. Body composition is the
next element and focuses on “the relative amount of muscle, fat, bone and other
vital parts of the body” (USDHHS, 1996 as adapted from Corbin and Lindsey,
1994). This is, therefore, related to the ever changing BMI number in which
body height, gender, weight and age all play a role in defining the illusive
‘normal’. It goes without saying that an athlete focusing on the preceding three
elements will, over time, reach the most balanced state where the body comprises
of lean muscle, with little fat.
5. Flexibility is the last element in the USDHHS
definition. It concerns “the range of motion around a joint” (USDHHS, 1996 as
adapted from Wilmore & Costill, 1994). Flexibility is improved by
lengthening the muscles and is improved through swimming and stretching.
Given the fact that most
ultra-distance runners that I know meet all five of the elements above, which
provides them with a set of attributes that enables them to perform the physical
activity of running, it is difficult to understand why their performance changes
from time to time. The answer, I think, is found in Hobrough addition which
relates fitness to muscle recovery.
Muscle recovery comes into play at two
stages in an ultra-distance athlete’s life, the first is during training and
the second is during multi-stage runs. The importance of allowing muscles to
recover during training ensures higher intensity work-outs and allows a runner
to remain injury free. Over the long-term this has obvious benefits such as
training stability, consistency and general improvement. During runs the
ability of the muscles to recover is vital to sustain a consistent performance.
The question is, therefore, how do we
add this sixth element to our training programs, and what are the
sub-components that forms part of it? Prevailing wisdom seems to define
recovery in-terms of rest, nutrition and rubbing or massaging tired and
overworked muscles.
1. Rest, forms the foundation upon which we
build our training. Learning how to read our bodies and how to allow our bodies
to recover is essential in remaining injury free. It allows for improved time
and distance, keeps training constant, and the mind focused.
TriathleteSA
magazine published an interesting article on understanding fatigue (Van Heerden
2012:70). In the article they published a recovery rest table which relates
training effect (effort) level to effective recovery time. It comes down to
rating your training effort on a scale from 1.0 to 5.0 where 1.0 being at rest
and 5.0 representing over reaching. The table below is very crude and in need
of refinement, but the idea is sound.
Training Effect Level
|
Effective Recovery Time
|
2.0 –
2.2
|
10-12
hours
|
3.2 –
3.4
|
20-24
hours
|
4.4 –
4.6
|
44-48
hours
|
If
consecutive day training is scheduled, training intensity should, according to
the table, not exceed an effect level or 3.2 -3.4 which seems to indicate a
real effort of around 64 to 68% of maximum exertion level.
The main
idea, however, is to ensure that you provide your body with sufficient rest
cycles. From a multi-day endurance race view-point the same would apply.
2. Massage is the second element through which
to ensure a speedy recovery. I will deal with sports massage in more detail at
a later stage on this blog. The important thing to realize is that training
results in muscles that do need a competent and qualified person to assist in
their repair through the use of sport massage.
How much
massaging, is dependent upon the number of workouts you do weekly. The proposed
rule is to take the number of workouts and divide it by two, round
off-downwards. The number you are left with is the amount of massage sessions
required per month. Example: 5 training sessions plus 1 race session per week
equals 6 activity sessions, divide this by 2, leaves you with 3 massage
sessions per month.
3. Diet is the final element. I have dealt
with diet elsewhere on this blog. My own nutritional experimentation will be
updated shortly.
In closing, fitness is as much about
muscle recovery as it is about the muscles ability to function during exertion.
It is, therefore, as important to focus on recovery strategies as it is on
training strategies.
I will expand on individual elements in
the coming weeks so do return to get an updated view.
Thanks for visiting my blog.
Genis
________________________
Sources
Van Heerden, Z. 2012. Understanding
Fatigue. TriathleteSA. March 2012. Page 70-71.
Coyle, D. 2012. Here’s the Rub. Men’s
Running Magazine. March 2012. Page 66-67.
USDHHS 1996. U.S. Department of Health and
Human Services. Physical activity and health: a report of the Surgeon General.
Atlanta: U.S. Department of Health and Human Services, Centres for Disease
Control and Prevention, National Centre for Chronic Disease Prevention and
Health Promotion; 1996.
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