Ch 7 Musculoskeletal Assessment Flashcards
Maximal force (1 RM)
Muscular strength
Sustained submaximal force (how long before fatigue)
Muscular endurance
Force per unit of time
Muscular Power
Static Strength assessment
Maximum voluntary contraction (MVC)
Spring loaded dynamometers
-Handgrip
-back and leg
Dynamic strength assessment
Recommendations vs not recommended
Recommended - free weights, constant-resistance machines
Not recommended - variable-resistance machines
Constant-resistance machines
Pros and COns
Pros
-safer than free weights
-less need for spotters
-minimize bad technique
Cons
-limit ROM
-reduce stabilizing musculature contribution
-Do not accommodate all body sizes
Steps for 1-RM testing
Warm up sets
5-10 reps at 40-60% of estimated 15RM
3-5 reps at 60-80% of estimated 1-RM
Attempt 1-RM
2-4 min rest between attempts
Increase weight conservatively
5-10% upper body
10-20% lower body
Attempt until failure
Sources of error for muscular fitness testing
Client, equipment, technician, environment
Estimating 1-RM
inverse linear relationship between %1-RM and number of submaximal reps to failure
Various prediction strategies for estimating 1RM
1-RM prediction formula
2 submaximal sets regression
Estimated from reps of YMCA bench press test
Prediction table
Tendo
linear transducer (force, velocity and power)
Myotest
triaxial accelerometer (force, velocity and power)
testing 1RM upper body and lower body
upper body: bench press
Leg press: lower body
1-RM/body mass
relative strength
Assessing Muscular Power
Vertical jump
-vertec
-switch mat
-accelerometers
Standing Long Jump