Effect of age on conduction velocity
We will now test how age affects nerve conduction velocity.
Please note that while this experiment records conduction velocity from the elbow, the distance is smaller for newborns, 3-year-olds, and 5-year-olds since they have shorter arms.
Select the desired age then press Stimulate to record a CMAP response.
Stimulus strength: 12 mA
Perform three trials for each age and record your measurements in the table below.
| Age | Trial no. | Measured latency (ms) | Distance (mm) | Conduction velocity (m/s) |
|---|---|---|---|---|
| Newborn (6 months old) | ||||
| Newborn | 1 | 100 | ||
| Newborn | 2 | 100 | ||
| Newborn | 3 | 100 | ||
| 3 years old | ||||
| 3 years | 1 | 150 | ||
| 3 years | 2 | 150 | ||
| 3 years | 3 | 150 | ||
| 5 years old | ||||
| 5 years | 1 | 200 | ||
| 5 years | 2 | 200 | ||
| 5 years | 3 | 200 | ||
| 18 years old | ||||
| 18 years | 1 | 300 | ||
| 18 years | 2 | 300 | ||
| 18 years | 3 | 300 | ||
| 38 years old | ||||
| 38 years | 1 | 300 | ||
| 38 years | 2 | 300 | ||
| 38 years | 3 | 300 | ||
| 58 years old | ||||
| 58 years | 1 | 300 | ||
| 58 years | 2 | 300 | ||
| 58 years | 3 | 300 | ||
Results analysis
Your results will automatically populate the table below. Using these values, calculate the mean and standard deviation for each age group.
| Age | Conduction velocity (m/s) | Mean | Standard deviation |
||
|---|---|---|---|---|---|
| Trial 1 | Trial 2 | Trial 3 | |||
| Newborn | |||||
| 3 years | |||||
| 5 years | |||||
| 18 years | |||||
| 38 years | |||||
| 58 years | |||||
Mean results graph