Coaches Shalu | Joyca | Panos

Group André | Herjan | Li | Qing | Qonita

User System Interaction – TU/e

Content

MotivationBackgroundRequirements Final DesignEvaluation Conclusion

Sedentary Lifestyle

HealthObesity and overweightHeart disease, high blood pressure, diabetes ...

Aesthetics

Stay fit or your clothes won't fit !

Well-BeingExercises combat depression and anxiety

...Just makes you feel good !

HowHealthy Lifestyle

Indicated levels of physical activity

Increase physical activity

MantainRemind and motivate

Opportunistic Leisure Sports

Goal

"Persuasive Technology to support increase of physical activity"

Target people with sedentary lifestyle

Brainstorming

Possible solutionsComparison with over 24 related studies

Social NetworkSystem as an active AgentSelf awarenessPhysical activity recognitionChallenge Setting

distributed goal definition

Gathering requirements

User centered design approachInitial interview (N=6)

Concept test: Prototype ActivityPal (N=8)

Focus group: video prototype (N=6)

Initial interview result(n=6) , distinct nationalities

I want to be more active but...NO time, motivation and company

About sharingDo and share activities with FRIENDSCommunicate with other users through system

Challenges should...According to physical activity level AND schedule from coach (expert, trust) and then friends

Self monitoring

Concept test(n=8)

Send challenges, activities and Messages;

7

Concept test: result

All participants liked the concept!

Half of the participants felt more active

They don't accept unrealistic or impossible (heavy) challenges

Opportunistic challenges are preferred among sedentary peopleThey like the coach (feedback)

“It is strange, but the coach really felt like an expert. His compliments felt better than positive feedback from other users.”

They want more information (feedback and overviews)

56 accepted challenges

Focus group

(n=6)

Focus group: result

Resistance towards challenge setting (pressure)He who sends must complete! "Suffer with me..."only by friends or by the coach

• Users disliked the alerts and reminders functions• Provide self awareness (improvement)

Reliable activity recognitionSharing information is not issuesMobile solution (weekends)

Design

Requirements

Allow means for self monitoringImplement a social networkCoach functionalityChallenge Setting

Measurement

Facilitate activity trackingPhilips Activity monitor

Algorithm: Movements Calorie expenditure

X

Y

Z

Self-Monitoring

263 kcal

Social Network

Communicate and Share activities

Social dynamicsImplicit social pressureSurveillance

Groups: Users who know each other and have similar levels of physical activity

View

Accessibility

Accessible in both the work and home environment. Both working hours and leisure time.Allow easy access, specifically during weekends!

Full time and real time access + update

Mobile Device

Challenges!Distributed goal setting: Share Goals!Different status

StructuredDescriptionActivityTime

"He who sends shall accept"Recognize

The coach

Infiltrated social agent!

Moderate and motivate

RemindersThe less the best

FeedbackReinforce positive behaviors

ChallengesFeasible; Focus on opportunistic activities.

Quick Peek!

User test

RecruitmentSedentary work (office) within Philips

Group 1 (n=6) Group 2 (n=6) Research Scientists Software Eng.

International Physical Activity Questionnaire

User test

Group 1

1st version - Stripped OverviewSelf-monitoringShared activity

Group 2

2nd version - FullMessagesChallengesTag ActivitiesCoach

7

10

Baseline

Conversion

Speedskater Philips

Connects

Views results

Raw Data

Load

s X

ML

Request XML

Behind the curtains

Evaluation

Difference of calorie expenditure (>100) over1 error + 1 lost = 2

Questionnaire (7 point Likert scale)Interest/EnjoymentPerceived CompetencePerceived ChoiceUsefulness/Value Social Influence

InterviewQualitative data on our concept for both groups

Evaluation

Mixed subject ANOVA X F(1,8)=2.48, p= .15

Group 1

Group 2

Baseline Testtime

900

850

800

750

Evaluation

Pearson correlation r(3)=.84, p<.05 Calorie increase accepted/completed challenges

Completed

CalorieIncrease

Questionnaire

Reliability analysis: 2 questions removedIndependent samples T-Test (1 2 )

Interest/Enjoyment (t=2.83, df=6.43, p=.028)

Group 1: 6.04 Group 2: 4.17

Value/Usefulness (t=4.02, df=8.31, p=.004)

Group 1: 5.61 Group 2: 4.22

No significant results for remaining categ.

Both scored low (<3) on Social Influence

Interview

For both groups most participantsLiked the systemUnderstood all functionalitiesPraised the self-monitoring possibilityUsed the system frequently (2 to 3 times daily)Contested measurement accuracy

Conclusions & Discussion

Group 1 Enjoyed and valued more the systemThink there was activity increaseSeamed more enthusiastic from start

Group 2Appreciated challenge setting Claimed to be Really, really busy...Dismissed communication featureHad difficulties with tagging

Different group characteristics (job, location)

Comparison with previous concept test Final evaluation Previous Test

Accepted ChallengesSent Messages Coach presence

IPAQ questionnaire showed different levels of physical activity (5 , 6 , 1 )

Correlations (accepted challenges and calorie increase) suggest further investigation

Conclusions & Discussion

21 56

3 31

Future work

EvaluationMore participants (Homogeneous group)Second user test (Invert settings)Long term effects

DesignFacilitate tagging (automatic?)Implement a mobile solution

Thank you!

Questions?