Exercsie
and Physiology Information
Athletic
Conditioning
Justin Opal
Coaches used to focus strictly on
the fundamental components of fitness including muscular endurance,
muscular strength, cardiovascular endurance, flexibility and body
composition. Today more and more fitness professionals are applying
functional training methods to enhance their sport conditioning
programs. Shifting the emphasis from training muscles in isolation
to muscles in movement patterns and taking into consideration
energy systems stressed and the psychological aspects of athletics.
As I like to say everything helps everything, but the closer the
training program is to the demands of an athletes sport the great
their improvements in fitness will translate to that athlete’s
performance in their sport. This is the essence of sport specific
training. When it comes to athletic conditioning three aspects
of training that should be emphasized above general health and
fitness programs are: Bioenergetics of Athletics, Psychology of
Athletic Performance, and Appropriate Testing.
Bioenergetics of Athletics
-Bioenergetics is the flow of energy in a biological system
i.e.: macronutrients to biologically useable forms of energy
-Energy stored in the chemical bonds
of adenosine triphosphate (ATP) is used to power human movement.
The replenishment of ATP in human skeletal muscle is accomplished
by three basic energy systems.
1. Phosphagen
2. Glycolysis (fast and slow)
3. Oxidative
-All
three energy systems are active at any given time. The extent
to which each contributes to supply energy depends on intensity
and duration.
| Duration |
Intensity |
Primary
Energy System |
Example
Exercise |
| 0-6 sec |
Very Intense |
Phosphagen |
Shot Put |
| 6-30 sec |
Intense |
Phosphagen / Fast Glycolysis |
Repeated Power Lift |
| 30 sec - 2 min |
Heavy |
Fasr Glycolysis |
Mogul Run |
| 2 - 3 |
|
|
|
| |
|
|
|
0-6sec
Very intense Phosphagen Shot Put
6-30sec Intense Phosphagen/Fast Glycolysis Repeated power lift
30-2min Heavy Fast Glycolysis Mogul Run
2-3min Moderate F+S Glycolysis/Oxidative Downhill Mountain Biking
>3min Low Oxidative 10km Run to Iron Man
Energy System Training Using Intervals
Using intervals as a training method allows appropriate metabolic
systems to be stressed. This method is based on the concept that
more work can be done at higher exercise intensities with the
same or less fatigue than continuous training. One effective way
to train aerobic fitness is at high intensities to elevate Lactate
Threshold (LT) and the Onset of Blood Lactate Accumulation (OBLA).
LT is the intensity at which blood lactate begins an abrupt increase
above the baseline concentration.
- LT for untrained people = 50 to 60% of max O2
- LT for trained people = 70 to 80% of max O2
OBLA is the second increase in the rate of lactate accumulation
at higher intensities than LT.
% of Max Power Primary Energy System
Exercise Time Exercise:Rest Ratio
90-100 Phosphagen 5-10sec 1:12 to 1:20
75-90 Fast Glycolysis 15-30sec 1:3 to 1:5
30-75 F/S Glycolysis/Oxidative1-3min 1:3 to 1:4
20-35 Oxidative >3min 1:1 to 1:3
Psychology
of Athletic Performance
For any athlete to excel many factors have to be in place such
as: technical skills, physical fitness, appropriate rest and recovery,
and optimal nutrition. With all of these factors as constants
an athlete’s performance can still vary from competition
to competition. This is where sport psychology comes into play
to help athletes attain more consistent results near their peak
performance by managing both their physical and psychological
resources to achieve the ideal performance state.
The Ideal Performance State
- absence of fear
- no thinking or analyzing performance
- narrow focus of attention concentrated on the activity itself
- sense of effortlessness or involuntary experience
- sense of personal control
- distortion of time and space, where time seems to slow down
Influence of Arousal on Performance
The inverted U-Theory states that arousal (the intensity of behavior
and physiology) improves performance up to an optimal level, above
which further increases in arousal are associated with a reduced
performance. Some of the factors that influence the optimal level
of arousal include:
Skill Level – the more skill an athlete has developed the
better he/she can perform during states of less or greater than
optimal arousal
Task Complexity – simple skills
can tolerate a higher degree of arousal and attention narrowing
because they have fewer task-relevant cues to monitor. The more
complex the skill is the lower the level of arousal is required
to attain the optimal level of performance.
Personality
– extroverts are sensory reducers so they need more arousal;
introverts are sensory augmenters so they need less arousal.Trait
Anxiety – is a personality characteristic, which represents
a latent disposition to perceive situations as threatening. The
athlete with low trait anxiety can handle higher levels of pressure
because of the decreased probability of engaging in task-irrelevant
thoughts.
Athletes should use arousal reduction
techniques when performing a new skill or one that is complex
in nature, and use arousal enhancement techniques when executing
simple skills or ones that are well learned. The purpose of using
such techniques is to allow the athlete to perform with an unburdened
mind while matching his/her mental and physical intensities to
the demands of the task.
Appropriate
Testing
Testing can help fitness professionals make important decisions
when it comes to an athletes program to help them progress at
optimal levels. These decisions go hand in hand with the concept
of a chain being as strong as its weakest link. Appropriate testing
should high light areas that an athlete needs to spend extra attention
developing. Testing is also useful in goal setting and tracking
progress. When selecting appropriate tests many factors must be
considered, such as:
Energy Systems – a valid test
must emulate the energy requirements of the sport for which ability
is being assessed.
Sport Specific – the more similar
the test is to an important movement in the sport the better.
Experience and Training Status –
for a well trained, experienced athlete a technique intensive
test may be appropriate, but poor technique will impair a less
trained athlete’s performance of that test.
Age and Sex – tests must be comparable to an athlete’s
physical and mental maturity and abilities.
Environmental Factors – environment
must be considered when selecting and administering tests. Aerobic
endurance test scores will be lower in a hot, humid climate compared
to the same test at a comfortable temp.
Sequence of Tests
Knowledge of exercise science can help determine the proper order
of tests and the duration of rest periods between tests to ensure
reliability. Here’s an example of an appropriate test battery:
- non-fatiguing tests (stretch, skin fold)
- agility tests (T-test)
- max power and strength tests (1RM)
- sprint tests (50m)
- local endurance tests (1min push up)
- fatiguing anaerobic capacity tests (400m)
- aerobic capacity tests (12min run)
Reference: Essentials of Strength
Training and Conditioning, 2d ed., by National Strength and Conditioning
Association, T.R. Baechle and R.W. Earle (eds.), 2000, Champaign,
IL: Human Kinetics.
Applied Knowledge
Put together a test battery for a sport of your interest; include
the rest periods between each test: