Strength
Training Exercises Programme For Women: Strength
training is vital for women, but the programme
depends on their event, not their sex.
by
Raphael Brandon for peak
performance
A
survey of US schoolchildren in 1985 comprising
various motor tests showed that the average
18-year-old girl could perform only one pull-up. It
also showed that the sit-up-in-one-minute score
peaked for girls at 14 years, with abdominal
strength endurance declining from then on. The
standing long jump test also indicated that on
average girls peak at 14 years. In comparison, the
average boy scored significantly higher on the test
and improved until 18 years old.
These statistics merely illustrate what everyone
knows, that women naturally develop less strength
than men. The differences can be explained by the
fact that at puberty boys have increased
testosterone levels which promotes muscle
development and bone growth over the next few years,
whereas girls have increased oestrogen which
promotes quite fast pelvic bone growth and fat
storage around the hips and thighs.
After puberty, boys' relative fat mass decreases
from 16 to 13 per cent, while girls' relative fat
mass increases from 18 to 26 per cent. Indeed,
research has shown that most of the differences in
strength between men and women can be explained in
terms of differences in lean body mass and muscle
and fat distribution. Women have smaller arm girth
and greater arm skinfold thickness than men, similar
leg girth but greater leg skinfold thickness than
men. This different distribution of extra fat and
smaller muscle mass accounts for much of the
disparity in strength between the sexes, women being
about 66-75 per cent as strong in the legs and 50-60
per cent as strong in the arms.
Nevertheless, research has shown that normalising
for lean body mass, which takes out the overall
differences in muscle and fat, muscle pound to
muscle pound women are similar in strength to men.
Can women respond to strength-training?
In the past, it was believed that strength training
was unsuitable for women because they were
'incapable' of improving their strength. But more
recent research has put paid to this theory.
Professor Jack Wilmore from the University of Texas
showed that after a 10-week training programme women
showed a 29 per cent improvement on the bench press
and 30 per cent improvement on the leg press,
compared to a 17 per cent and 26 per cent
improvement from men. However, while the men showed
hypertrophy (enlargement) in the leg and arm
muscles, the women did not. Wilmore hypothesised
that the reason for the increased strength in women
must be due to an increased ability to recruit
muscle fibres and coordinate the movements. Later
research has been equivocal - some has shown that
women can increase muscle mass significantly, some
has not. The tentative conclusion must be that in
general most women find it more difficult to gain
muscle mass.
Recently an official summary of all the research
regarding strength training for women was presented
in the US by the Women's Committee of the National
Strength and Conditioning Association. They reported
that:
1. Women improve fitness, athletic performance and
reduce injuries through strength training, just as
men do
2. Physiological responses of males and females to
the use of weight training and resistance exercise
are similar
3. Women should train for strength using the same
exercises and techniques as men
4. There is no significant difference between the
sexes in the ability to generate force per unit of
cross-sectional muscle. Men display greater absolute
strength than women largely because they have a
greater body size and higher lean-body-mass-to-fat
ratio
5. Women do experience muscle hypertrophy
in response to resistance exercise, but the absolute
degree is smaller than in men.
The conclusion to be drawn is that women are equally
as strength-trainable as men. If female athletes
want to achieve elite performances they must ensure
that comprehensive strength training is fully
covered in their training schedules. Competitions,
unlike laboratory research, do not compensate for
lean body mass. It is the fastest who wins, and
that's the end of it. If you want to be that winner,
you have to optimise your strength. In my opinion,
that is a training priority.
What sort of training?
That being said, the next question is, what is the
best form of strength training for women? The answer
is not a matter of gender but more a matter of the
particular requirements of the athlete's event,
being the same for both men and women. Looked at
from this point of view, any athlete must improve
her (or his) strength if their profile is less than
the strength demands of their event.
To devise the best strength programme based on the
event's requirements, we have to analyse the event
in terms of muscle use, the type of contractions
each muscle uses, the biomechanics of the movement
and whether maximum strength or strength endurance
is the goal. This kind of 'needs analysis' should
govern the design of any strength programme. As an
illustration of such an analysis, let's look at
running the 10K.
In the 10K event, the major leg muscles all work
dynamically, such as the quadriceps, the hamstrings,
gluteus maximus, hip flexors, calf and dorsi
flexors. All these muscles are active at some point
during the gait cycle and so it makes sense to
strengthen them. However, they must all be
strengthened in the right way to maximise 10K
performance and injury prevention.
In 10K running 97 per cent of the energy for muscle
contractions comes from aerobic metabolism. Thus the
predominant muscle-fibre units recruited at 10K pace
will be the aerobic Type 1 and 2a units. The more
anaerobic Type 2a and 2b units may only be recruited
towards the end of the race as the the muscles tire
and glycogen is depleted. (Type 2a fibre units can
utilise both aerobic and anaerobic metabolism.)
For this reason, the 10K strength programme must
have a strength endurance emphasis which targets
mainly the Type 1 and Type 2a fibre units. It has
been shown that strength athletes who perform a few
sets of a few repetitions of very heavy weights, eg,
four sets of five reps, have selective hypertrophy
in the Type 2b fibres, which wouldn't necessarily
benefit the 10k runner, whereas bodybuilders who
perform higher volumes of lighter weights, eg, six
sets of 12 reps, show hypertrophy in the whole range
of muscle fibres.
Although 10K athletes do not want to start
bdybuilding, it could be argued that for the leg
muscles a strength endurance training programme of
high repetitions and lighter weights would be the
most suitable for a 10K athlete since the Type 1 and
2a fibres will be targeted effectively. To improve
strength endurance, 3-5 sets of 12-20 repetitions
with 45-second rest periods are recommended.
The choice of leg exercises must reflect the
biomechanics involved in the running movement. For
example, since most thigh muscle activity occurs
when one foot is in contact with the ground,
single-legged exercises with the foot in contact
with the ground or equipment will be most relevant.
Single-legged leg press, lunges or one-legged squats
are all exercises of this nature which target the
muscles in the thigh and bum areas. The range of
movement of the joints is also relevant.
For example, as the foot strikes the ground, the
knee joint is slightly bent (about 20o). Then the
knee flexes to absorb the impact (to around 40o) and
then extends again before toe-off. The quadriceps
muscles act to control the shock-absorbing knee
flexion movement. Certain strength exercises should
be chosen to focus on this range of movement, eg,
limited-range leg press, especially to help prevent
the anterior knee pain which women are prone to
because of a greater femur Q angle causing more
inward rotation of the knee.
Don't overlook the trunk and hips
The other major body part that requires strength
training for running is the trunk and hip area. Here
the major muscles involved during running are the
erector spinae (back), abdominals (stomach),
obliques (side) and abductors (top of the bum).
These muscles are not so obviously involved with
running as the leg muscles, yet nonetheless serve a
very important role in pelvis and trunk
stabilisation and posture control. Biomechanical
research has shown that for the legs to work
effectively in propelling the body, the pelvis and
trunk area must be rigid and supported by its
muscles, otherwise the drive from the legs will be
wasted.
These hip and trunk muscles must also be trained for
strength endurance, for similar reasons. However,
since they do not work as dynamically as the leg
muscles, the exercises chosen should reflect their
more static, supporting role. These muscles are best
trained with a combination of isometric or static
exercises and slow, controlled dynamic exercises of
small, specific range.
For example, lying on one's front over the end of a
bench and extending the arms out into a Superman
position and maintaining it is an isometric exercise
for the back muscles. Three sets of 10 x 10 seconds
holding a straight line from the back to the hands
will help maintain an upright posture as the muscles
must hold the back and shoulder girdle in a rigid
extended position.
An example of a slow and controlled exercise which
targets a small range is the reverse curl or reverse
crunch exercise for the stomach. This involves lying
on one's back with legs fully bent. Then, raise the
hips an inch off the floor by pulling with the lower
abdominals and lower again, keeping the legs
completely still. Here the abdominal muscles have to
work continually to raise the pelvis and then lower
it again, even though it is a small range of
movement. This kind of exercise is more relevant to
posture control than the more conventional sit-up.
After all, when we run we keep our upper bodies
still, so being very strong at flexing the trunk
forwards is not necessarily related to efficient
running.
In general, the hip and trunk muscles must be
trained for strength endurance (low resistance/ high
volume) using static exercises and exercises with
specific ranges of movement for posture control. The
choice of exercises must reflect the need to
maintain a rigid back with a level pelvis to be able
to push off with the legs. Balanced strength in this
area also helps prevent lower back and hamstring
injuries. In my opinion, the trunk and hip area is
very important for 10K strength-training programmes;
strong legs will only do so much if the trunk is not
a well-supported, rigid structure. Would a motor
racing team put a Formula1 engine in a car with a
Formula 3 chassis?
Training the upper body
To complete the strength analysis, we must consider
the upper body. This area is less important for 10K
running, but for an all-body, balanced strength
programme some upper-body exercises should be
included. Upper-body strength will also help with
posture and an effective, easy arm action. Once
again, I would recommend a strength endurance
emphasis.
A practical way to train the upper body without
devoting too much time to it would be to cover most
of the major upper body muscles in two or three
exercises - for example, seated row together with
bench press, or pull-ups together with dips, would
target most of the chest, shoulder, upper back and
arm muscles.
To summarise the strength training programme for the
10K, all the major muscles involved in running need
to be trained with a strength-endurance emphasis.
The exercises chosen also need to be biomechanically
relevant in terms of movement, single-legged and
foot-fixed, and any important joint ranges of
movement. This will improve the power and efficiency
of running action and help reduce knee injury risks.
Training the trunk muscles for endurance, using
static and postural specific exercises will increase
efficiency by improving the rigidity and support of
the trunk. It will also help reduce low back and
hamstring injury risks. Exercises covering the
upper-body muscles will complete a balanced strength
programme that is specifically targeted to the
athlete's event.
This kind of analysis can be done for any event or
sport. First, the correct muscles and movements have
to be pinpointed and the role they play in the sport
determined. From this the relevant strength-training
exercise protocols can be designed for the muscles
involved. Women athletes should definitely use this
method as the starting point for their essential
strength training requirements.
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