Why do men need strength training?
Better strength training performances can
be the product of a number of factors. This product is primarily
the outcome of efficient technique, the progression of speed
and the maturing competitive attitude on a sound basis of
general endurance, all round strength and general mobility.
The development of all round strength is best achieved via
circuit training and then progressing this through strength
training. Weight training is the most widely used and popular
method of increasing strength.
How do we get stronger?
A muscle will only strengthen when forced
to operate beyond its customary intensity (overload). Overload
can be progressed by increasing the :
- resistance e.g. adding 10kg to the barbell
- number of repetitions with a particular weight
- number of sets of the exercise
Muscle Fibre Hypertrophy
Resistance training will increase the muscle
size (hypertrophy). Muscle growth depends on the muscle
fibre type activated and the pattern of recruitment. Muscle
growth is due to one or more of the following adaptions:
- Increased contractile proteins (actin & myosin)
- Increased number of and size of myofibrils per muscle
fibre
- Increased amounts of connective, tendinous & ligamentous
tissues
- Increased enzymes and stored nutrients
Which weight training exercises?
The exercise must be specific to the type
of strength required, and is therefore related to the particular
demands of the event (specificity). The coach should have
knowledge of the predominant types of muscular activity
associated with the particular event, the movement pattern
involved and the type of strength required. Exercises should
be identified that will produce the desired development.
Although specificity is important, it is necessary in every
schedule to include exercises of a general nature.
Olympic Lifts
The Olympic Lifts are recommend exercises
for inclusion in power and speed training programs. The
objective of these exercises is to develop the large muscles
of the body in an explosive action which requires the use
of many joints and muscle groups in a coordinated movement.
The Olympic Lifts comprise of the Clean & Jerk and the
Snatch. The Power Snatch and Power Clean are auxiliary
lifts that aid in the training of the Clean & Jerk and
the Snatch.
How Much Weight to Use?
The amount of weight to be used should be
based on a percentage of the maximum amount of weight that
can be lifted one time, generally referred to as one repetition
maximum (1RM). The maximum number of repetitions performed
before fatigue prohibits the completion of an additional
repetition is a function of the weight used, referred to
as repetition maximum (RM), and reflects the intensity of
the exercise. A weight load that produces fatigue on the
third repetition is termed a three repetition maximum (3RM)
and corresponds to approximately 95% of the weight that
could be lifted for 1RM.
For maximum results athletes should train
according to their genetic predisposition. An athlete with
a greater proportion of slow twitch muscles would adapt
better to an endurance training and a muscular endurance
program using more repetitions of a lighter weight. An athlete
with a greater proportion of fast twitch muscles would benefit
from sprint training and a muscular strength program using
fewer repetitions of a heavier weight.
Load - Repetition Relationship
The strength training zone requires you to
use loads in the range of 60% to 100% of 1RM. The relationship
of percentage loads to number of repetitions (rounded up)
to failure are as follows:
- 60% - 17 reps
- 65% - 14 reps
- 70% - 12 reps
- 75% - 10 reps
- 80% - 8 reps
- 85% - 6 reps
- 90% - 5 reps
- 95% - 3 reps
- 100% - 1 rep
How Many Reps?
The number of repetitions performed to fatigue
is an important consideration in designing a strength training
program. The greatest strength gains appear to result from
working with 4-6RM. Increasing this to 12-20RM favours the
increase in muscle endurance and mass.
One set of 4-6RM performed 3 days a week is
a typical strength training program. The optimal number
of sets of an exercise to develop muscle strength remains
controversial. In a number of studies comparing multiple
set programs to produce greater strength gains than a single
set, the majority of studies indicate that there is not
a significant difference.
Handling heavy weights in the pursuit of strength
will require a recovery of 3-5 minutes between sets, but
only minimum recovery should be taken if strength endurance
is the aim. The majority of athletic events are fast and
dynamic, and therefore this quality must be reflected in
the athlete's strength work.
Muscular strength is primarily developed when
8RM or less is used in a set. How much load you use depends
upon what it is you wish to develop:
- 1RM to 3RM - neuromuscular strength
- 4RM to 6RM - maximum strength by stimulating muscle
hypertrophy
- 6RM to 12RM - muscle size (hypertrophy) with moderate
gains in strength (Fleck & Kraemer, 1996)
- 12RM to 20RM - muscle size and endurance
Rest between sets
The aim of the recovery period between sets
is to replenish the stores of ATP and Creatine Phosphate
(CP) in the muscles. An inadequate recovery means more reliance
on the Lactic Acid (LA) energy pathway in the next set.
Several factors influence the recovery period, including:
- Type of strength you are developing
- The load used in the exercise
- Number of muscle groups used in the exercise
- Your condition
- Your weight
A recovery of three to five minutes or longer
will allow almost the complete restoration of ATP/CP.
Rest between sessions
The energy source being used during the training
session is probably the most important factor to consider.
During the maximum strength phase, when you are primarily
using the ATP/CP energy pathway, daily training is possible
because ATP/CP restoration is completed within 24 hours.
If you are training for muscular endurance (muscle definition)
then you require a 48 hour recovery as this is how long
it takes to fully restore your glycogen stores (Piehl, 1974;
Fox et al, 1989).
As a 'rule of thumb' 48 hours should elapse
between sessions. If training strenuously, any athlete will
find it extremely difficult to maintain the same level of
lifting at each session, and the total poundage lifted in
each session would be better to be varied (e.g. a high,
low and medium volume session) each week.
Equipment Type?
There are variable resistance machines and
free weights. Variable resistance machines are effective
tools for building strength and muscle tone and are designed
to work the target muscle in isolation, without the assistance
of the surrounding muscles. Free weights (barbells, dumbbells
and machines that provide the same equal resistance to a
muscle) allow you not only to target a particular muscle
group but to engage other muscles that assist in the work.
Once they are conditioned, these assisting muscles help
you to increase the weight you use in training the target
muscles in order to stimulate the most growth in muscle
fibres. The assisting muscles help stabilize the body, support
limbs and maintain posture during a lift. Lifting free weights
improves your coordination by improving the neuromuscular
pathways that connect your muscles to the central nervous
system.
Weight Training Types
Simple Sets e.g. 3 x 8 with 70% - meaning
three sets of eight repetitions with a weight of 70% of
maximum for one repetition. This is the system that all
novice lifters should work on, because the high number of
repetitions enables the lifter to learn correct technique,
and thereby reduce the risk of injury.
Pyramid System Here the load is increased
and the repetitions are reduced (e.g. 100kg x 10, 120kg
x 5, 130kg x 4, 140kg x 3, 150kg x 2, 160kg x 1). Pyramid
lifting is only for experienced lifters who have an established
good technique.
Super Setting This consists of performing
two or three exercises continuously, without rest in between
sets, until all exercises have been performed. The normal
'between sets' rest is taken before the next circuit of
exercises is commenced.
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