Strength Testing Flashcards
(12 cards)
1
Q
Isometric Muscle Contraction
A
- Muscle contracts but does not change length
- Force = Energy expenditure
2
Q
Concentric Muscle Contraction
A
- Muscle shortens during contraction
- Bicep curl
- Force > Energy Expediture
3
Q
Eccentric Muscle Contraction
A
- Muscle lengthens during contraction
- Relaxation
- Force < Energy Expenditure
4
Q
Concentric and Eccentric Contraction
A
Opposing muscle groups do opposite things
5
Q
The amount of force generated during muscular contraction is dependent on:
A
- Types of motor units recruited
- Number of motor units recruited
- Initial muscle length
- The nature of motor units’ stimulation
6
Q
More force production
A
Use type II fibers
7
Q
At rest
A
Use type I fibers
8
Q
Purpose of Strength Testing
A
- Isolate the muscle group to determine strength/weakness
- Assess changes in strength after training
- Assess mobility and muscle strength
- Measure force production
9
Q
Greater ability to produce force
A
Greater function of the muscle
10
Q
What you’re looking for
A
- Consistent results
- There should not be more than 10% variation in force between sets
- Plateau of maximal contraction for each set
11
Q
Why rest 90 seconds between each set?
A
ATP replenishment via PCR (phosphocreatine)
12
Q
What angle are the knees held at
A
60 degrees
