2..2 - Preparation and training methods 2 Flashcards
What are the 4 AFFECTING FACTORS of strength ?
- cross-section area
- fibre type
- gender
- age
How does the CROSS-SECTION AREA affect strength ?
- greater the cross sectional area of muscle, greater the strength
- max of 16-30N per cm of kmuscle cross section
How does FIBRE TYPE affect strength ?
- greater % FG and FOG = greater strength over short period of time
- fast twitch fibres -> contract w higher force -> greater force of contraction
How does GENDER affect strength ?
- males have more strength than females
- males high muscle mass and cross-sectional area due to more testosterone
How does AGE affect strength ?
peak strength:
- females = 16-25
- males = 18-30
-age-related decline due to decrease in efficiency of neuromuscular system elastciity, testostrone & reduction in muscle mass
Name the 4 methods of evaluating strength
-maximum strength -> one RM test
-maximum strength -> grip strength dynamometer
-strength endurance -> abdominal curl test
-explosive strength -> vertical jump test
What is the ONE REP MAX TEST ?
MAXIMUM STRENGTH
- specific piece of gym equipment
- increase weight until one rep can be completed
- full recovery between reps
What are the 3 STRENGTHS of the one rep max test
- direct measurement
- easy procedure
- most muscle groups can be tested
What are the 3 WEAKNESSES of the one rep max test ?
- trail and error = fatigue
- difficult to isolate individual muscles
- potential for injury
What is the GRIP STRENGTH DYNAMOMETER ?
MAXIMUM STRENGTH
- hold the dynamometer with a straight arm above head
- arm brought down as grip is squeezed
What are the 3 STRENGTHS of the grip strength dynamometer ?
- simple objective measure
- cheap
- highly reliable
What are the 2 WEAKNESSES of the grip strength dynamometer ?
- only measures forearm
- not sport-specific
What is the UK ABDOMINAL CURL TEST ?
STRENGTH ENDURANCE
- progressive intensity to exhaustion
- timed to an auto-cue
- stage and sit-up # given
What are the 4 STRENGTH of the UK abdominal curl test ?
- good for large groups
- simple and cheap
- isolates abs
- valid and reliable
What are the 4 WEAKNESSES of the Uk abdominal test ?
- good technique needed
- strain on lower spine
- limited to subject motivation
- not sport-specific