Applications Of Strength & Conditioning Flashcards
What can you do with musculoskeletal models?
Visualise complex movement patterns
Estimate forces that are difficult to measure
Perform ‘what if’ studies
Identify cause-effect relationships
Define muscle strength
Maximal amount of force that can be generated by a specific muscle or muscle group in specific conditions
4 reasons for measuring strength
- Predict performance
- Implement a training program
- Assessment of rehabilitation
- Identify muscle imbalance
What are the 3 types of muscle actions?
- Isometric (static)
- Concentric (shortening)
- Eccentric (lengthening)
Power equation
Power = force x velocity P = w x t W = f*d P = f*d/t P = f* v
When does peak power occur?
1/3 of max - isometric force and an intermediate velocity of contraction
Why is usain bolt the fastest man in the world?
Exception muscle strength
Technique characteristics
Physique that leads to physiological and mechanical advantages
What is isokinetic dynamometry?
Very useful for measurement of sport-specific strength because of the ability to measure the strength-muscle length-velocity relationship
What 8 factors affect strength?
- Training status/ size of muscle fibers
- Type of muscle action
- Velocity
- Joint angle (muscle length)
- Fiber type
- Number and types of activated motor units
- Activation frequency
- Fatigue
Females ACL injury risk
6-8 higher injury rate Land with knees less flexed Poor hamstrings/ quadriceps balance Hamstrings protection of ACL reduced Hamstring co-activation deficit Slow activation of hamstrings
ACL injury risk (landing/pivoting with knee extended)
Patellar tendon shear load higher
Hamstring co-activation less effective in protecting ACL
6 mobility problems in older people
Falls Balance Accidents OA and chronic conditions Osteoporosis/ fractures Ergonomic problems
