L3, Data Processing

Question 1

Objectives:
- To become familiar with basic extraction (reduction) techniques
- To build computing (Excel) skills
- To preview OpenSim
- To prepare for Lab 1

Answer 1

Take home messages:
- Data sets in biomechanics are large and must be reduced for analysis
- Data reduction comes down to the analyst and their research question

Question 2

What are 4 key phases of walking/gait?

Answer 2

1. Ground strike
2. Toe-off
3. Stance
4. Swing

Question 3

What are 5 biomechanical values that can be extracted for further analysis?

Answer 3

1. Peaks (max or min)
2. Value at an event (e.g., knee flexion at mid-stance)
3. Peak or average in a phase (e.g., average dorsiflexion velocity during late-stance)
4. Range of motion
5. Linear displacement