Kelsec TgForce Impact User manual

TgForce Sensor User Guide
TgForce Sensor User Guide
Release 1.4 –July 2015
Copyright 2015 - Kelsec Systems Inc.

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Contents
Product Overview ......................................................................................................................................... 6
Getting Started.............................................................................................................................................. 6
What's included ........................................................................................................................................ 6
Apple iOS Requirements ....................................................................................................................... 6
Downloading the TgForce App.............................................................................................................. 6
Charging and activating the sensor........................................................................................................... 7
Charging ................................................................................................................................................ 7
Activating the sensor ............................................................................................................................ 7
Pairing the TgForce Sensor ....................................................................................................................... 7
Attaching the TgForce Sensor ................................................................................................................... 8
Start Running ............................................................................................................................................ 9
Getting to know the TgForce App............................................................................................................... 10
The main Session view ............................................................................................................................ 10
PPA...................................................................................................................................................... 10
AVG .....................................................................................................................................................10
Cadence............................................................................................................................................... 10
gMax Red threshold line ..................................................................................................................... 10
Start/Stop............................................................................................................................................ 10
The History view ..................................................................................................................................... 11
The Review chart.....................................................................................................................................12
The Settings view .................................................................................................................................... 13
TgForce Sensor.................................................................................................................................... 13
gMax Warning & Adjustment .............................................................................................................13
Audio Feedback................................................................................................................................... 13
Real Time Graphic ............................................................................................................................... 13
Advanced Settings............................................................................................................................... 13
Understanding Peak Positive Acceleration (PPA) Value ............................................................................14
Treadmill & Pavement Running ..................................................................................................................14

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Sensor Calibration....................................................................................................................................... 15
General Information ................................................................................................................................... 16
Battery life, Charging and Power ............................................................................................................ 16
LED Indicator Light .................................................................................................................................. 16
App Updates............................................................................................................................................16
Cleaning & using the TgForce sensor in wet condition........................................................................... 16
Return Policy and Warranty.................................................................................................................... 16
Specifications ..........................................................................................................................................17
Regulatory and Safety Notices................................................................................................................ 17
Medical advice ....................................................................................................................................17
Canada Regulatory Conformity........................................................................................................... 18

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Product Overview
Thank you for choosing the TgForce Impact Running Sensor. The sensor and its associated App provide
real time tibial shock feedback and additional features. This document provides instructions on
installing and operating the sensor. It also provides mandatory regulatory information. Please check
tgforce web site at http://tgforce.com for the latest information.
We recommend following the guidelines in this instruction manual before using the TgForce Sensor.
Getting Started
What's included
Tgforce Sensor
Velcro Band
USB Charging cable
+ Free Mobile App on the Appstore
Apple iOS Requirements
●iPhone 4S+, iPad 2nd Generation+, iPod Touch 5th Generation
●iOS Operating System 7.1 or later
Downloading the TgForce App
You will need to download the free TgForce App to use your sensor.
1. Click on the App Store on your iOS device.
2. In the search toolbox, enter TgForce.
3. There will be an icon with an add feature that says "Free". Click this icon. A new green icon will
appear asking "Install App”. Tap it.
4. Once the download is complete you can find TgForce App on your device.

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Charging and activating the sensor
Charging
Before first use, it is recommended to fully charge the TgForce sensor. Plug the provided USB charging
cable into any USB port. Charging your sensor will take approximately 1-2 hours. When charging is
complete, the orange LED indicator light will turn off.
Activating the sensor
Slightly shaking the sensor will activate it. If the sensor was in sleep mode, LED indicator light will flash
red 5 times (or blue if an iOS device with TgForce App is active nearby). Note that the sensor does not
have an On/Off Switch. If the sensor has been unused for more than 10 minutes, it will enter sleep mode
to preserve battery charge. It will also enter sleep mode if the sensor is not paired within 2 minutes,
Pairing the TgForce Sensor
The TgForce App will automatically look for a nearby TgForce sensor and establish pairing. You can
confirm pairing has been successful by looking at the Bluetooth icon in the upper left corner of the
TgForce App. When successful pairing is established, the sensor LED indicator will flash blue 5 times.
Alternatively, you can pair the sensor manually by selecting the Settings Tab and ‘TgForce Sensor’.
Pairing has been successfully established.
There is no pairing with the TgForce sensor. Try shaking the sensor until pairing occur.

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Attaching the TgForce Sensor
For accurate measurement, the sensor
must be attached to the anteromedial
aspect of the distal tibia
(in front and toward the middle of the
lower extremity). Use the provided
Velcro band. The Sensor must be
attached in way that is tight enough so it
does not slide on the skin.
It is very important to have the sensor
visual LED indicator on top; the charging
hole must be downward.
Note: The sensor can also be attached
using Adhesive tape such as the 3M
Nexcare Water Resistant Adhesive Tape.
If the sensor cannot be attached firmly
with the Velcro band, use this method.

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Start Running
Push the Start button on the app. Once
you start running, you should see Impact
data being received and displayed.
If Audio feedback is activated (in the
Settings menu), you will be notified in
your earphone if the impact level is
above the gMax threshold.
You can adjust the gMax threshold in the
Settings menu.

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Getting to know the TgForce App
The main Session view
PPA
The PPA (Peak Positive Acceleration) of the Tibia while
running is displayed in real time in g unit. It is the maximum
acceleration that occurs during the impact phase of running.
AVG
This is the average PPA for the session. Calculated over the
displayed number of steps.
Cadence
Number of steps per minute - counting both feet.
gMax Red threshold line
The gMax threshold can be adjusted in the Settings menu.
The top PPA value will switch from blue to red every time
the impact value is higher than the gMax threshold value. If
Audio Feedback is enabled, an audible sound (selectable in
the settings menu) will also be generated.
Start/Stop
After a session has been started with the Start Button, only
the Session screen is available. The Settings and History
screens are available after stopping a session.
Stopping the session will provide 3 options: Saving the data
in history, Discard the session data and Resume the session.

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The History view
Each session can be recorded for later review
and analysis. Selecting the History Tab provides
a table with all the session recorded. You can
review the latest 1000 steps of each session on
a chart, export the data by email for analysis in
a 3rd party software (csv format) or delete the
session data.
For each session, the following information is
displayed:
●Start Date-Time of the session
●Average PPA (Peak Positive
Acceleration) during the session
●Average Cadence of the session
●Total number of steps during the
session.
Exporting Data, select the envelope - You can
use this feature to export the raw data from
the session. You need to have the Email
feature of your iOS device adequately
configured for using this function. The format
is CSV (comma separated value).
Review Chart: Select the session, a detailed
chart will be displayed.
Deleting a session, slide your finger from right
to left. A red ‘Delete’ Box will appear. Confirm
action by selecting it.

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The Review chart
The latest 1000 steps can be analyzed using the Review chart. The chart provides impact and cadence
data for the selected session. The chart is scrollable and zoomable for reviewing running data with a
high level of precision.
Also available on the review screen is the PPA and Cadence Average for the last 1000 steps. The Review
screen can be displayed in the portrait or landscape mode.

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The Settings view
TgForce Sensor
If more than one TgForce sensor is active nearby,
you can select one using this function. You also use
this function to pair with a new sensor. Each sensor
has a specific ID number to differentiate them from
other sensors. Use this function if you encounter
issues with automatic pairing of the sensor.
gMax Warning & Adjustment
This is where you can adjust the impact threshold
for receiving and displaying warnings. The red line
in the Session view chart will be set at this value.
Audio Feedback
If activated, the iOS device will generate either a
'Beep' or a 'Drum' sound when the impact level is
above the gMax threshold
Real Time Graphic
For selecting bar or line chart in the session view
Advanced Settings
You can fine tune the sensor performance using
the sensor threshold and sensor delay adjustments
Sensor Threshold
This is the minimal impact level required (in g
units) for activating the sensor PPA detection
algorithm. If the sensor is not detecting steps, you may want to reduce the threshold. If the sensor is too
sensitive, you may want to increase this value.
Sensor Delay
To reduce potential false step detection, the sensor will wait a certain amount of time after each step
before listening to new impact signal. You may want to modify this value for special conditions or for
other applications.

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Understanding Peak Positive Acceleration (PPA) Value
The sensor and the internal algorithm have been designed for measuring the Peak Positive Acceleration
(PPA) of the tibia. This value is obtained during the initial foot contact.
Treadmill & Pavement Running
Depending on the type of treadmill used, there may be an important variation in impact level between
treadmill and pavement running. In many cases, the treadmill running surface will absorb a significant
portion of the impact. The TgForce sensor is initially set for normal pavement running. If the recorded
cadence is sometimes incorrect, you should adjust the sensor threshold (g) level (see calibration
section).
But keep in mind that the TgForce sensor always provides the true value of the tibial shock. It can be
used as a good indicator of the impact reduction level.

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Sensor Calibration
For best performance, you should make sure the sensor is
adequately calibrated. Do a short run with the sensor and
make sure that the number of steps indicated on the main
session view correspond exactly to the number of steps you
did in the session (step count for the leg with the sensor).
If the cadence is sometimes very low or the step count
displayed is lower than the actual number of steps.
●Reduce the sensor impact threshold value (Settings
view, Advanced Settings, Sensor Threshold). Try
reducing the threshold 1 step at a time.
If the cadence is sometimes very high or the step count
displayed is higher than the actual number of steps:
●Increase the sensor impact threshold value (Settings
view, Advanced Settings, Sensor Threshold). Try
increasing the threshold 1 step at a time.
●Increase Sensor Delay value (ms between each
impact).

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General Information
Battery life, Charging and Power
The battery will last up to 6 hours with continuous running. Charging your sensor will take
approximately 1-2 hours. When charging is complete, the orange LED indicator light will turn off.
To save battery, the sensor will enter Sleep Mode if it does not detect any impact for 10 minutes.
Simply shaking the sensor will reactivate it.
If the sensor has not been used for more than 3 weeks, you may have to recharge it before using it
again.
Note:If the sensor has never been paired with an iOS device, it will scan for a nearby device for 2
minutes after being shaken. If no pairing has occurred, it will go back into sleep mode.
LED Indicator Light
The indicator light on the sensor communicates the current status and let you know it is powered.
●Orange: Battery currently charging - Will turn off when fully charged
●Red: If the indicator light flash red when the sensor detects an impact, it means the sensor is
active but not paired to an iOS device.
●Blue: The indicator light will flash blue when paired and actively transmitting data to an iOS
device.
App Updates
TgForce team will periodically add new features, updates, and improvement to the TgForce App. It is
recommended that you keep your TgForce App updated to the latest version.
Cleaning & using the TgForce sensor in wet condition
The TgForce sensor is sweat-proof and rain-proof. Wipe clean with mild soapy water but do not immerse
the unit in water.
Return Policy and Warranty
Kelsec Systems provides a one-year limited warranty. Under conditions of the warranty agreement
provided with your TgForce sensor, purchasers will be entitled to repair or replacement for defective
TgForce units. This warranty begins from the date of initial purchase. Kelsec Systems may also choose to
refund the purchase price of the unit to the purchaser. Warranty information and the TgForce online
web store return policy can be found in the TgForce Support Center online at
http://www.tgforce.com/support .

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Specifications
Input Voltage (USB Recharging)
4.0 to 6.0 V
Connectivity
Bluetooth 4.0, 2.4GHz ISM Band
Internal Battery
Lithium Polymer
Dimension (TGF1)
4cm X 2cm X 1.5cm (1.5 in X 0.8 in X .5 in)
Impact range (g)
1g to 23.9g
Impact detection
Mems triaxial accelerometer
Regulatory and Safety Notices
Medical advice
The use of the TgForce sensor is not a substitute for individualized gait analysis and therapy by a trained
professional. You should always consult your healthcare provider before beginning any fitness program.
Recycling
The symbol on the product or its packaging signifies that this product has to be disposed separately from
ordinary household wastes at its end of life. Please kindly be aware that this is your responsibility to
dispose electronic equipment at recycling centers so as to help conserve natural resources. Each country
in the European Union should have its collection centers for electrical and electronic equipment
recycling. For information about your recycling drop off point, please contact your local electrical and
electronic equipment waste management authority or the retailer where you bought the product.
•Do not dispose of the TgForce sensor with household waste.
•Batteries are not to be disposed of in municipal waste stream and require separate
collection.
•Disposal of the packaging and your TgForce sensor should be done in accordance with local
regulations.

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FCC Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet different from that to which the receiver is connected
FCC Statement: TgForce Sensor TGF1 contains FCC ID PI4BL600
Canada Regulatory Conformity
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out
in the Radio Interference Regulation of the Canadian Department of Communications.
“Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux
appareils numériques de la class B prescrites dans le Règlement sur le brouillage radioélectrique édicté par le
ministère des Communications du Canada."
Contains IC 1931B-BL600

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10816 Berri
Montreal, Quebec H3L 2H4
Canada
www.tgforce.com
www.kelsec.com
© 2015 Kelsec Systems Inc.
All Rights Reserved
Printed in Canada