This document describes an Android application called Health Guardian that was created to monitor health conditions. The app allows users to track calorie intake from food and calories burned from exercise. It has a database of foods and exercises that provides calorie information. The app was tested on 4 individuals of varying ages and backgrounds. All participants were able to use the app proficiently after 7-10 sessions. The creators concluded the app is helpful for maintaining a balanced diet and fitness routine but could be improved with additional food/exercise options and personalized plans.

1. International Journal of Excellence Innovation and Development
||Volume 1, Issue 1, Nov. 2018||Page No. 001-004||
www.ijeid.com {IJEID © 2018} All Rights Reserved Page | 1
An Android Application to Monitor Health
Condition
Md. Nasfikur R. Khan, W. Faarhin Durdana, Robin Roy,
Gobinda Poddar, Sabrina Ferdous, A K Ehsanul Haque Mashuk
School of Engineering & Computer Science, Independent University, Bangladesh
Abstract—Mobile phones are a more convenient device
for people all over the world for daily activities. Apart
from the ease and automation of its use, it also
minimizes the overall time needed for a task manually.
In contrary, to the scenario, few years back smart mobile
phones were affordable and each day a new upgrade in
the technology was established each day. With keeping
pace with the increasing use of smart phone, we have
created an android application naming it, Health
Guardian. The ultimate goal of this application is to
notify about the calorie level in a food and monitor the
amount of calorie burned after performing exercise. The
additional benefit that the app will provide is the
identification of food calories you consume. The
application features a monitoring system to count your
daily nutrients and food consumption. The list of
registered food items along with their calorie amount
and other details are also recorded within the app. The
early test of the app found were very helpful, as it will
notify the user about the calorie level of the food and
what exercise will burn out those calories. The results
obtained were very positive and we look forward to
increasing the users of this app throughout.
Keywords—Android, application, health, monitoring,
calorie
INTRODUCTION
In the modern world, underweight and overweight is a
common issue. This can lead to many severe diseases.
Underweight person are weight deficient. They have a
weight 15-20% below the normal of their BMI (body
mass index). Underweight can cause due to genetic
disorder, lack of food, eating disorder, illness and drug
use. Due to underweight, a person can have malnutrition,
vitamin deficiencies, anemia, osteoporosis, weak immune
system and growth development problems. Overweight is
also a serious condition. Person who have excess weight
than the usual BMI are overweight or obese. Overweight
or obesity might lead to conditions like heart disease,
stroke, high blood pressure, diabetes and many more. To
solve this problems changing the eating habit and
following a balanced diet is necessary [1].
At this date, android devices are the mostly used in
everyday life. Life has become much easier with
Android applications in our daily life. In Bangladesh,
less amount of people join gymnasium or take a proper
care of their health. Therefore, among various
applications, fitness applications are also developed. Our
application “Health Guardian” is a health and fitness
based android application. It is a calorie counter
application. It will let the user know about the calorie
level in a food and monitor the amount of calorie burned
after performing exercise. No more travelling to gym
and doing heavy exercises. The gym trainer is in your
fingertips now.
To maintain health, people seek for an advice from an
experienced gym trainer who can advise them, which
diet plan and routine exercises they can follow. Training
at a gym can be time consuming and expensive for some.
Therefore, our application will help people achieve their
goal. Every person has a busy schedule and keeping a
gym trainer in the palm of his or her hands makes life
much easier. Our application will notify the user about
the calorie level of the food and how much calorie will
be burnt by doing specific exercises. Android diet apps
are nothing new. For decades, people have been using
these apps [2-4]. We are bringing a revolution in health
system. Some apps, which are well-rated in 2018, are:
My Fitness Pal: Studies show that keeping a track of the
food intake we can easily lose weight. This app has a
huge database of calorie counts of all kinds of food. The
user logs the food by clicking a picture or manually
inserting the name and they will find out how much
calorie is in a particular food item.
Ultimate Workout Nutrition: This app tells us about the
food and proper nutrition we can have besides doing
exercise. This app will show what the user can have
before and after the exercise and which food will help us
to gain nutrition and be healthy.
Life Sum: This app helps to maintain a balanced diet
easily. It gives us a plan to follow, the food diary and
calorie counter keeps a track of the food intake. We can
also find healthy recipes to follow the diet [5-9].
METHODOLOGY
With the launch of the app, an interface asking the user
to “Sign up” , “Login “and “Forget password ?” will be
displayed. In the process of signing up and creating an
account, the user will input their name, age, height and
current weight. These details will be saved as initial data
about the user and can be later used when login process
is followed. Forget password will allow you to reset your
password with a self-generated link sent to your
registered email. After signing in the app, in the next
step two there will be options available named “Food
criteria” and “Exercise”. If the user selects the Food
criteria tab then it will ask them to select the type of food

2. An android application to monitor health condition Khan et al.
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(e.g. Fruits, Grains, Meat etc).After selecting the desired
category, a vast list of that particular food type will be
provided to choose from. Upon selecting the specific
item from the list, the user will then be asked in the
following step to input the amount intended to be
consumed. Finally, the total amount of gained calorie
through the consumption of that food item in that
particular amount will be calculated and displayed in the
“Calorie gain” section. These data will be saved and
available to the user if they make any future enquiries.
If the Exercise tab is selected instead, the user will
suggest a variety of exercise routines (e.g. Cardio,
Weight lifting, Pilates etc). Upon selecting the desired
exercise, in the upcoming step the user will have to input
the time duration for that specific routine. In the
following step, the amount of lost calories will be
calculated and shown to the user. These data will be
saved and available to the user if they make any future
enquiries. Below is a full illustration of the procedure of
the app:
Fig. 1 (a,b): Health guardian application overview of
diet section
Fig. 2 (a,b): Health guardian application overview of
fitness section
In the following step, a final calculation will be done to
figure out the remaining amount of calories by
comparing the gained and lost calorie amounts and
ultimately at the final stage the result will be revealed to
the user, which will be either calories gained or calories
lost including the amount of it. The basic equation used
here is rather a simple algorithm of subtraction;
Let, calories gained = x and calories lost= y;
So, Final Amount of Calories =
(calories gained, x – calories lost, y)
Therefore, if the result comes in negative it explains that
the gained amount of calories is less than the lost amount
of calories; but if the result is in the positive it states that
the gained amount of calories is greater than the lost
amount of calories.
CASE STUDY
The „Health Guardian‟ android application has been
implemented on four individuals who belonged to
different ages, societies and life styles.
This experiment was done to collect results that would
be benevolent for the desired app establishment that is
user friendly for all users of different age groups and
field of work. The participants of this experiment are:
Participant I
A 25 years old man, who is working as a banker. He
remains busy with his banking issues for 8-10 hours a
day and does not need to move a lot to accomplish his
daily duties. He is very flexible to use android platform
to maintain his social life.
Fig. 3: Block diagram for the working procedure of the
application
(a) (b)
(a) (b)

3. International Journal of Excellence Innovation and Development
||Volume 1, Issue 1, Nov. 2018||Page No. 001-004||
www.ijeid.com {IJEID © 2018} All Rights Reserved Page | 3
Participant II
A 57-year-old man, who has retired from his service. He
is suffering from asthma and diabetes. He can barely use
a smart phone and that is why he needs additional
support to run different android applications.
Participant III
A 30-year-old male, who is working in an advertising
firm and spends major portions of his day in outdoor
shooting. He is using android devices since 2006 but still
strive to gain expertise.
Participant IV
A 22-year-old female student, who spends most of her
time in university. She is very busy with classes and
struggling to maintain a proper diet. She is using an
android device for the last three years and she is very
comfortable in using related applications.
EXPERIMENT DESIGN
The overall procedure has been designed to gather
appropriate feedback from the participants to understand
its effectiveness. To run the overall procedure smoothly,
we divide the whole process into few parts. The
procedure are such that is given below:
At first, we tried to judge users according to their
previous experience with similar kinds of applications.
Experienced users provided three to four sessions to
understand the basic usage of the application and others
were given five to six sessions to get used to it.
Second, our volunteers provided support to the
participants who were facing difficulties to run the
application. After attending two to three sessions,
participants were asked to run the application without
any external support. Followed by, the assignment of
their own customized and registered profiles, which
allowed them to evaluate their innate means of using the
application all by themselves.
Later on, we focused on determining the difficulties in
choosing an option from both the sections of the
application and the clarity of understanding each and
every section of the application and to run the
application with ease.
To conclude, we assimilate the beneficial functions of
the application in a person‟s routine and health care who
struggles to locate and balance the therapeutic regime in
the rush of their daily lives.
The ultimate outcome of this study was to provide the
participants a better way to maintain a balance health
with effective calorie count [10-14].
RESULTS
Participant-1 was able to operate the application
effortlessly but for his busy schedule, initially he was
lagging behind. Although he coped-up and was able to
run the application smoothly after 7 sessions. Along with
that, he found the application to be very useful for a
person who lives on junk food.
This senior participant faced many difficulties during his
prior sessions of the trials. He needed extra few sessions
to learn the usability of the application and run it without
support from others. However, the technicalities of
handling was the most difficult part for him. By the end
of tenth session, he ran the application flawlessly by
himself.
Despite of being an expert user of android device, this
participant struggled with his time management and
other features of this application. Although he had full
enthusiasm about understanding the app and learnt to run
the application in a short period of 7 sessions. He
seemed very satisfied with the content of this application
overall.
Our final participant has immense interest to learn the
application to maintain a proper diet. She is a quick
learner, individually run the application by the end of
eighth session, and already started to use it for
maintaining a formidable diet.
The overall results were schemed and tabulated in the
following table.
Table 1: Participants responses
Previous Experience Adaptability
Participant I This participant is an
experienced user and
using various android
applications to
maintain his network
with social
communities.
Because of limited time
scale, user was
struggling to adjust but
by the end of 7th
sessions, run it fluently.
Participant II Participant had no
experience in android
device use but was
competent about
learning and
understanding.
He developed his skill
over the application in
the beginning of this
trial period. After
completing 10 sessions,
he run it smoothly.
Participant III Participant has
previous experience
regarding android
devices. However,
not with this kind of
apps.
By our volunteer‟s help
participant took hold of
the app in a steady
pace.
Participant IV Participanthas decent
experiences with
android applications;
however, she is very
new to this particular
type of applications.
She developed the
command over the
application in a
minimum amount of
time and managed to
utilize the application
skilfully.
In short, it can be stated that, by the end of 10th session,
all four participants were comfortable with the
application and they utilized the application effectively
without any external help. Besides, they were also very
enthusiastic with the application to maintain a proper
diet and routine exercise daily [15-16].
CONCLUSION
After making the application, we have come to realize
that there are some sectors in which the app can be
further improvised. A major improvement would be to

4. An android application to monitor health condition Khan et al.
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synchronize this app with more food categories, which
will allow the user to use the application to maintain a
flawless diet controlling procedure. Besides that, we are
trying to implement a different section of feedback or
suggestion, where users will get a proper diet and
exercise plan to have a healthier life. The entire interface
can be made more professional in outlook [17, 18].
Although we have some difficulties in the beginning and
need to improve in few sections, still it can be said that
the overall reaction on the android application is quite
positive and it seems the ultimate solution of saving time
to maintain a proper fitness system by choosing
appropriate food and exercise is to achieve our fitness
goals.
Acknowledgment
Authors would like to thank Doctor Sarmila Yesmin and
Md Mahfuzur Rahman to provide their support and share
their inside to improve and imply the quality of the
application.
REFERENCES
[1] Asghar MZ, Qasim M, Ahmad B, Ahmad S, Khan
A, Khan IA. Health Miner: Opinion Extraction
from User Generated Health Reviews.
International Journal of Academic Research. 2013
Nov, 5(6), pp. 279-84.Date accessed: 30/11/2015
[2] D. Ameta, K. Mudaliar and P. P. “Medication
Reminder And Healthcare – An Android
Application”, International Journal of Managing
Public Sector Information and Communication
Technologies (IJMPICT), Vol. 6, June 2015, pp.
41-48.
[3] Top 15 Android medical apps for health care
professionals. http://www.imedicalapps.com/2011/
01/top-free-android-medical-apps-healthcare-
professionals/. Date accessed: 24/01/2015.
[4] Calorie Calculator. http://www.calculator.net/calor
ie-calculator.html?ctype=metric&cage=22&csex
=m&cheightfeet=5&cheightinch=10&cpound=16
0&cheightmeter=160&ckg=27.2155&cactivity=1.
2&printit=0&x=84&y=16. Date accessed:
09/10/2015.
[6] Choi, J. ; Biomed lab Co., Seoul, South Korea ;
Kang, W.Y.; Chung, J. ; Park, J.W. “Development
Of An Online Database System For Remote
Monitoring of Artificial Heart Patient”,
Information Technology Applications in
Biomedicine, 2003. 4th International IEEE EMBS
Special Topic Conference, 24-26 April 2003
[7] S.Gavaskar, A. Sumithra, A.Saranya “Health
Portal-An Android Smarter Healthcare
Application”, International Journal of Research in
Engineering and Technology, Sep-2013.
[8] Frank Sposaro and Gary Tyson, “iFall: An android
application for fall monitoring and response”, 31st
Annual International Conference of the IEEE
Engineering in Medicine and Biology Society,
1:6119–22, 2009.
[9] Pei-Fang Tsai, I-sheng Chen, and Keven Pothoven
“Development of Handheld Healthcare
Information System in an Outpatient Physical
Therapy Clinic”, proceedings of the 2014 IEEE
18th International Conference on Computer
Supported Cooperative Work in Design, pp. r559-
602.
[10] D. Frohberg, C. Göth and G. Schwabe, “Mobile
Learning Projects – A Critical Analysis of the
State of the Art”, Journal of Computer Assisted
Learning, Vol. 25, Issue 4, pp. 307-331, August
2009.
[11] L. F. Motiwalla., “Mobile Learning: A Framework
and Evaluation”, Computers & Education, Vol.
49, Issue 3, pp. 581– 596, November 2007.
[12] Md. Nasfikur R. Khan, Md. Mahafuzur R., W.
Faarhin Durdana, A. Muneem Al Hasani, Al
Adnan Bin Akter, M. A. Razzak, “„Doctor Who?‟
- An Innovative and Customizable Mobile
Application for Doctor‟s Appointment”, IEEE
Kolkata Section Sponsored - 3rd International
Conference on Recent Trends In Computer
Science And Technology, Jamshedpur, India.
[13] Md. Nasfikur R. Khan, Hamudi H. Sonet, Faisal
Bin S., A K Ehsanul H. Mashuk, S. Yesmin, K. A.
Mamun, “„Bolbo Kotha‟-An Innovative and
Customizable Mobile Application for Enhancing
Communication Skills of Verbally Challenged
Users”, International Journal of Information
Technology, 2(8), 24-25 April, 2018.
[14] J.R. Corbeil and M.E. Valdes-Corbeil, “Are You
Ready for Mobile Learning”, Educause Quarterly,
pp. 51-58, No. 2, 2016.
[15] T.J. Mehigan. “Harnessing Accelerometer
Technology for Inclusive Mobile Learning”, 11th
International Conference on Human-Computer
Interaction with Mobile Devices and Services
(MobileHCI09), Bonn, Germany, September 2009.
[16] William M. Rand, Carol T. Windham, Bonita W.
Wyse and Vernon R. Young (1987). Food
Composition Data: A User's Perspective. Food
and Nutrition Bulletin Supplement 12. United
Nations University Press, Japan.
[17] Pranti Tawheed, Faisal Bin Shahin, A. K. Ehsanul
Haque Mashuk, Khizir Al Zabir, Gobinda Poddar,
Robin Roy and Md. Nasfikur R. Khan,
“Contemplation and Challenges of Mobile
Learning Implementation”, Proceedings of 14th
Global Engineering and Technology Conference
29-30 December 2017, BIAM Foundation, 63
Eskaton, Dhaka, Bangladesh.
[18] National Communication Authority (NCA),
Bangladesh – Mobile Telecom Voice Penetration
Rates and Subscription Trends, Jan.-March 2015,
Available [Online]
[19] Jaeyeon Kang, Sunju Sohn. Limited Access to
Health Care and the Impact there of on Married
Women‟s Mental Health, Indian Journal of
Science and Technology, 2015, 8(20), pp. 1-7.
Date accessed: 09/01/2016.