NSCA CSCS Study Guide
Post 15 of 25
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Post 15 of 25 in the NSCA CSCS Study Guide
- Find the Components and the benefits of warm-ups.
- Make warm-ups that are effective.
- Find factors affecting flexibility.
- Use flexibility exercises taking advantage of proprioceptive neuromuscular facilitation.
- Select and apply appropriate static and dynamic stretching methods.
These positive impacts on performance can happen:
- Quicker muscle contractions and relaxations of agonist and antagonist muscles.
- Improved rate of force development and reaction time.
- Improved strength and power.
- Low muscular viscous resistance.
- Improvements in delivery of oxygen due to the Bohr effect. This is when temperatures facilitate oxygen release from both hemoglobin and myoglobin.
- Increases in blood flow to muscles that are active.
- Enhancements in metabolic reactions.
- Increases in psychological preparedness for performance.
A warm-up structure influences possible improvements, and the warm-up needs to stay specific to the performed activity.
Typically, 5 – 10 minutes of slow activity like jumping or skipping.
Specific warm-up periods have movements like the movements in the athlete’s sport. These should be 10 – 20 minutes. Shorter time frames are more common.
The warm-up should end no more than 15 minutes prior to the subsequent activity.
Targeted and Structured Warm-ups
Raise, Activate and Mobilize, and Potentiate protocol. (RAMP)
The first RAMP phase is raising key physiological parameters and the level of skill of athletes with activities.
This is just like the general warm-up where we aim to elevate body temp, heart rate, respiration, blood flow, and joint fluid viscosity.
Use more sport-specific moves to warm up.
The second phase is for activating and mobilizing.
This is like stretching in a regular warm-up.
There is no link between stretching and the prevention of injuries or muscle soreness.
The use of dynamic stretching and mobilities give key advantages.
The third phase is called potentiation.
This is like the specific warm-up, but it focuses on intensities of activities.
The phase deploys sport-specific activities that progress until athletes perform at the required intensity for the next activity or session.
The more power necessary for sports or activities, the more important this third phase is.
A measure of the range of motion. There are static and dynamic components.
Static flexibility is the possible range of motion around a joint and its surrounding muscles during passive movements.
Dynamic Flexibility is the range of motion available during active movements.
Flexibility and Performance
There are perfect levels of flexibility for every activity.
Injury risk increases outside of this range
Factors Affecting Flexibility
Structure determines the range of motion of a joint.
Age and Sex
Older people are typically less flexible than younger ones, and females are more flexible on average.
Muscle and Connective Tissue
Plasticity and Elasticity of connective tissues affect a range of motion.
People who have a greater range of motion typically show higher levels of stretch tolerance and are thus able to take higher loads.
The athlete’s control of their range of motion is held at the level of the central and peripheral nervous systems and less by the actual structures.
Exercising through full ranges of motion and developing the agonist and antagonist muscles can stop the loss of range of motion.
Bigger muscle may stop the movement of a joint.
Active people are often more flexible than those that are inactive. Activity alone doesn’t improve flexibility.
Frequency, Duration, and Intensity of Stretching
The acute effects that stretching has on a range of motion are transient.
For long-lasting effects, stretching programs are needed.
When should and Athlete Stretch?
Following Practice and Competition
Stretching after practice give improvements to range of motion due to increases in muscle temperature.
Stretching is needed 5 – 10 minutes after practice.
Stretching may decrease muscle soreness.
As a separate session
If someone needs increased flexibility, you may need additional sessions for stretching.
Stretching should be preceded by thorough warm-ups in this case.
This session can be useful for recovery the day after competing.
Proprioceptors and Stretching
This occurs when muscle spindles are activated when doing rapid stretching movements.
This needs to be avoided when stretching.
Autogenic inhibition and reciprocal inhibition
This is accomplished with active contraction prior to passive stretch of the same muscle.
Reciprocal inhibition is accomplished by contracting the muscle that oppose the muscle being stretched passively.
Both reflexes result from the stimulation of Golgi tendon organs that cause relaxation of reflexive muscle.
Types of Stretching
Slow, constant stretch with the final position held for 15 – 30 seconds.
This involves active muscular efforts and the use of bouncing type movements where the end position isn’t held.
This stretch is a type of functionally based exercise stretching that uses generic sport and specific sport movements.
Proprioceptive Neuromuscular Facilitation stretch (PNF)
Passive pre-stretch of ten seconds, hold for six seconds, and a thirty-second passive stretch.
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Passive pre-stretch of ten seconds, concentric action through a full range of motion, and thirty-second passive stretching.
Hold Relax With Agonist Contraction:
In the third phase, the concentric action of agonists is used to increase the force of stretch.
Most effective PNF stretch due to reciprocal and autogenic inhibition.
Common PNF Stretches With a Partner
- Calf and ankle
- Hamstrings and hip flexors
- Quads and hip flexors
Guidelines for Static Stretching
Be in a position good for relaxing.
Move to where you feel discomfort in your range of motion.
Hold the stretch for thirty seconds.
Repeat stretches on both sides.
Precautions for Static Stretching
Lower the intensity of stretch if experiencing pain, radiating symptoms, and losing sensations.
Use caution when stretching a joint that is known to be hypermobile.
Avoid spine related movements.
Stabilizing muscles need to be active to protect the other joints and unneeded movements.
Guidelines for Dynamic Stretching
5 – 10 reps of each move.
Increase range of motion with every rep.
Increase speed of motion when appropriate.
Contract muscles through the range of motion.
Precautions for Dynamic Stretching
Progress through range of motion.
Deliberately move without bouncing.
Use good technique for more range of motion.
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