Improve your dart throw with the Dartalyzer App in three steps:

Measure and determine required actions

With the Dartaylzer app you can measure the five most important parameters of your darts throw and compare them with standard values. If a value is outside the red line, there is an urgent need for action. The measurement and standard values of the 5D Darts-Screen are taken from the book "Darts-Sport" by Harald Jansenberger.

Daily training

Integrate Dartalyzer into your daily training and optimize the different parameters of your darts throw with the "traffic light training".

Show progress

The Dartalyzer app shows you on which parameters you have made progress.

5D Darts-Screen parameters / number of sensors

With the Dartalyzer App the 5 parameters of the 5D Darts-Screen from the book "Darts-Sport" by Harald Jansenberger can be measured. In addition to the parameters of the 5D Darts-Screen the arm angle and shoulder stability can be measured and trained.
Sensor

Required sensors

One or two sensors are required to measure the parameters. On the wrist either a sensor from MbientLab or an Apple Watch can be worn. To perform the measurements with two sensors, two sensors from MbientLab are required with version 1.0 of the app.
Sensor
Short overview

The parameters of the 5D Darts-Screen

In his book "Darts-Sport" Harald Jansenberger has described five performance-determining parameters, which are decisive for an optimal dart throw.
img
Throw constancy (throw strength)

How strongly are the individual throws executed: It is measured by the forward acceleration of the throwing arm. It is not the effective acceleration in g (1g corresponds to 9.81 m/s2) that is the decisive factor, but the deviation between the various throws. The less the individual throws deviate from each other, the better and more accurate the throw will be.

Ideally, the difference between the strength of the throw and the mean value is less than 0.17g.

img
Lateral acceleration of the throwing movement

The lateral acceleration of the throwing motion is measured in g. The smaller the lateral acceleration, the better. Currently the value is displayed in g. In a future version of the app it is planned to display the value graphically (see picture).

Ideally the lateral acceleration is lower than 2.34g.

img
Stand stability (vertical acceleration)

The stability is measured by measuring how much of the body is moving or accelerating upwards during the throw. The more stable the standing, the lower this value is.

Ideally the vertical acceleration is less than 0.17g.

img
Movement extent

The extent of movement is the difference between the angle of the end and start position. The greater the degree of movement, the better.

Ideally the extent of movement is greater than 109.5°.

img
Upper arm stability

The upper arm stability describes the angle between the upper arm positions in the initial and final position.

Ideally this angle is smaller than 17.5°.

With the "TRAFFIC LIGHT TRAINING"

further parameters can be trained:

img
Forearm angle

The angle of the forearm to an imaginary perpendicular at the elbow at the end of the throwing movement is measured. There is no ideal value for this parameter. The ideal value must be determined individually. The aim is to optimize the movement extent and to keep the forearm angle between the individual throws as equal as possible.

This parameter can be trained with only one sensor on the wrist.

img
Shoulder stability

In the book "Darts-Sport" Harald Jansenberger describes the shoulder stability as a value "in percent of the upper arm length (shoulder joint middle to pivot point elbow joint)". Since this value cannot be determined in the same way with accelerometers, the Dartalyzer App shows the shoulder stability as acceleration value in g. It is assumed that the smaller the acceleration, the better the shoulder stability.

In order to measure this parameter, one sensor must be attached to the wrist and the second sensor on the top of the shoulder (the button points upwards and the USB connection points towards the dartboard).

Currently only the vertical acceleration of the shoulder is measured. In a future version it will also be possible to measure the horizontal acceleration.

Screenshots

img
img
img
img