Lecture 14: The force velocity curve and velocity based training Flashcards
Equation for force
Mass x acceleration
Velocity
Change in displacement/change in time
Original force-velocity curve
Inverse relationship
As force output increases, velocity will decrease and vice versa
What proved that the force-velocity curve isnt always true?
When velocity is not matched, more mass does not always mean more force
ex. At given load, force experienced w jump squat was higher than back squat
Load-velocity curve
Replaces force-velocity curve
The greater the load of a movement, the less velocity that movement will have
Example of high load in sport
Rugby scrum
Example of high velocity in sport
Rugby line break
What must training with the load-velocity curve focus on?
Improving all aspects of curve
What will training with the load-velocity curve lead to?
A more efficient and athletic individual
What needs to be established before training with the load-velocity curve?
Technique, prerequisite basic skills
Aspects of load-velocity curve
- Max strength
- Accelerative strength
- Strength-speed
- Speed-strength
- Speed
Load-velocity curve when training only focuses on heavy resistance training
Shifts curve to right
Can move given load at high velocity and can achieve a given velocity with a heavier load
Load-velocity curve when training only focuses on higher speed training
Shifts curve up
Move a given lighter load at higher velocity and achieve a moderate external resistance at a higher velocity
Goal of training w regards to load-velocity curve
Shift entire curve upwards AND to the right
Considerations when training athletes along all aspects of curve
- Training age
- The sport
- The position
- Phase of competitive cycle
Training age effect on load-velocity curve training
How long have they been training
What is training priority
How does training age affect exercise selection
Examples of how position affects training
Wide receiver vs offensive lineman= strength vs speed focus
What type of training should be done in off-season?
Generalized training
Focus on hypertrophy and strength
What type of training should be done in pre-season?
Specific ie. exercises with similar movement patterns to sport
Focus on power
What type of training should be done in in-season?
Maintain and build where possible
Decreased volume, intensity can stay high
Devices for velocity based training
- Linear position transducer (GymAware)
- Lasers (Flex)
- Inertial measurement units (Push band)
- Camera systems (EliteForm)
Why is velocity based training useful?
Immediate feedback (objective)
Encourages competitiveness
Dictator of load
SAID principle
Form of autoregulation
Autoregulation
Adjust load based on a given velocity
Aspects of curve - max strength
Training focus: Powerlifting
Mean velocity= <0.45m/s