Anatomy And Physiology - Training Flashcards
What is strength?
The ability to apply force.
What is static strength?
The ability to apply force against a resistance without any movement occurring and the muscle length remains the same.,
What is dynamic strength?
The ability to apply force to overcome a resistance where movement occurs and the muscle length changes.
What is strength endurance?
The ability to sustain repeated muscular contractions over a period of time.
What is maximum strength?
The ability to produce a maximum amount of force in a single muscular contraction.
What is explosive strength?
The ability to produce a maximum amount of force in a single muscular contraction.
What are 2 examples of maximum strength?
- scrum in rugby
- clean and jerk
What are 2 examples of strength endurance?
Swimming
Rowing
What are 2 examples of explosive strength?
- jumping for the intercept netball
- long jump
What are the two main factors affecting strength?
- the muscle fibre type being recruited
- the cross sectional area of the muscle
How do muscle fibres affect the strength of muscular contraction?
- fast glycoytic muscle fibres exert greater force with a faster speed of contraction than other fibre types
- motor units consisting of FG fibres are large and have larger motor neurones than SO motor units which send faster impulses. These units have the highest explosive and maximum strength.
How does cross sectional area of muscle effect strength of muscular contraction?
- the larger the cross sectional area of the muscle, the greater the strength or force of contraction
- age gender and training all affect the cross sectional size of the muscle
What is the fitness test for explosive strength?
Vertical jump test: the performer marks their maximal standing reach height with one arm, then performs a standing vertical jump to mark their highest jump reach. The score is the difference between the two marks.
What are the fitness tests for endurance?
Abdominal curl test: perform sit ups in time with a bleed. The test is progressive and the performer continues until failure. The score is based on the cumulative sit ups completed.
Press up test: the performer completes as many press ups as possible hands shoulder width apart, maintains good form. The test score is the total number completed.
What are the fitness test for maximum strength?
1 repetition maximum: the performer selects a piece of gym equipment or free weights exercise to test the strength of a specific muscle group. The score is the highest weight that the performer can lift once.
Grip strength dynamometer: the performer takes 3 turns with each hand and records the best score shown on the dial. It should be dialled back to zero after each attempt.
What are the advantages of strength fitness test?
- equipment is available and affordable
- standardised tables available
- specific muscle groups can be isolated
- clear procedure gives valid and reliable results
What are the disadvantages of strength fitness tests?
- specific groups cannot be isolated
- some aren’t specific
- procedure or technique required may be open to interpretation which gives invalid and unreliable results and also a risk of injury.
What factors can be used to develop strength?
- applying a form of resistance to make muscle groups work harder
- can be provided by equipment such as multi-gym stations free weights, pulleys, resistance bands or using the own performers body weights.
- the number of repetitions and sets so the resistance can be manipulated targeting a specific group of muscles and type of strength.
How do you train strength endurance?
Lower resistance with a greater number of repetitions.
How do you train maximum and explosive strength?
Higher resistance and fewer repetitions.
What is multi-gym?
A piece of equipment with a range of stations and adjustable weight stacks. Movement of the weigh is controlled increasing safety.
What are weights?
Free weight using dumbbells or barbells can be used to work specific muscle groups. Other muscles also work as fixations to stabilise the movement increasing their isometric strength.
What is plyometrics?
Training involving bounding or jumping. This takes advantage of the stretch reflex, a contraction of a muscle in response to it being stretched (protective mechanism).
An eccentric contraction occurs first which causes a more forceful concentric contraction to follow.
What is interval training?
Periods of work on a series of exercise stations followed by a relief interval where muscle groups recover. Can include free weights and targets strength endurance.