Felicity J. Pendergast|Anthony Worsley|Sarah A. McNaughton
Evaluating the usability of a smartphone meals diary
Deakin University|Deakin University|Deakin University
journal nutrition intermediary metabolism 1 2014 1e55 11 conclusions even level pilot study novel interdisciplinary approach effective achieving weight loss short term compared usual care research provided sound basis longer term 12 month trial funding sources illawarra health medical research institute evaluating usability smartphone meals diary f pendergast worsley sa mcnaughton centre physical activity nutrition research school exercise nutrition sciences deakin university australia email fpendergdeakineduau f pendergast backgroundaims common dietary assessment methods limited ability assess meal patterns contextual factors location social interactionwhilst eating study aimed test usability method assessing meal patterns using ecological momentary assessment principles via smartphone meals diary app known foodnow methods participantsused foodnowappover fournonconsecutivedays recording food beverages consumed using combination written text voice recorded messages photographs eating drinking occasion series contextual questions completed questions included time place social company activities consumption description eating occasion information surrounding purchasing andpreparation food ingredients using foodnowapp participants completed short questionnaire functionality results twelve participants 10 females 2 males mean sd age 255 79 years provided 38 days data covering 171 eating occasions feedback identified need reorder provide additional responses within app adjusted prior testing total amount questions asked also adjusted reflect concern high participant burden conclusions pilot study supports usability foodnow app assessment meal patterns foodnow app currently used validation study investigate ability adequately measure overall energy intake funding sources deakin university evaluation smartphone application aimed improving iron intake premenopausal women mann k lim c nowson rigo ea szymlekgay l riddell ao booth 1 school exercise nutrition sciences deakin university australia email davinamdeakineduau mann backgroundaims evaluate content usability acceptability smartphone app designed improve intake bioavailable dietary iron methods semistructured focus group conducted following two week period whereby participants used app participants females aged 1850 years owned android smartphone focus group discussions audio recorded analysed via inductive opencoding method using qualitative analysis software nvivo frequency code occurrence calculated results three focus groups n 14 19 conducted age 1936 years following themes numerical occurrence identified suggestions improvements 246 interface design 103 dislikes 80 usability 38 technology issues 34 likes 35 pictures 7 specific components app including goal tracker 108 facts 58 photo diary 33 games 31were discussed overall participants enjoyed idea app facts providedwithin app suggestions improvement included addition back button inclusion colours pictures help decrease clunkyness improve interface design app includingmore facts option able go read information section another suggestion conclusions usability testing important step refining app suggestions participants taken consideration redevelopment app aid usability functionality app potentially leading increased acceptability funding sources meat livestock limited australia inex corporation skipping breakfast predict academic performance two years later australian children kj smith l blizzard sa mcnaughton wake sl gall aj venn menzies research institute tasmania university tasmania tas australia centre physical activity nutrition research school exercise nutrition science deakin university vic australia murdoch childrens research institute royal childrens hospital vic australia email kjsmithutaseduau kj smith backgroundaims skipping breakfast habitually randomized controlled trials rcts linked poorer academic performance children little known longerterm effects study examined whether skipping breakfast predicted poorer academic performance two years later methods national sample 2335 89 yearold children participated 2008 2010 followups longitudinal study australian children included analysis 2008 breakfast consumption reported parentguardian three 24hour food frequency diaries completed within four weeks children skipped breakfast least one occasion classified breakfast skippers 2010 childs teacher compared reading maths overall achievement children grade averageaverage average grade 5 national assessment program e literacy numeracy naplan results linked differences skippers nonskippers calculated using ordinal regression teacherreported academic performance linear regression differences mean naplan results analyses adjusted sex age socioeconomic position results 2008 250 107 childrenwere classified breakfast skippers 2010 breakfast skippers slightlymore likely lower teacherreported reading adjusted rr 112 95ci 102 124 overall academic achievement adjusted rr 111 95ci 101 123 categories nonskippers skippers lower mean naplan scores nonskippers five domains differences small 2 statistically significant conclusions skipping breakfast predicted poorer academic performance two years later compared nonskippers differences small funding sources nhf schoolleavers need know nutrition food systems views prominent foodrelated experts iran sadegholvad h yeatman n omidvar parrish worsley 1 school health society university wollongong nsw australia 2 faculty nutrition food technology shahid beheshti university medical sciences iran 3 school exercise nutrition sciences deakin university vic australia email ss709uowmaileduau sadegholvad backgroundaims current study investigated food experts views considered important areas nutrition food systems knowledge schoolleavers iran methods facetoface telephone semistructured interviews conducted 28 iranian experts acknowledged field food nutrition including five public health nutritionists five nutritionists five dietitians four food scientists two environmental scientists two veterinary physicians one agriculture scientist four high school teachers health teacher home economics teacher agriculture science teacher food science teacher participants drawn academics recognised universities practitioners professional governmental nongovernmental organizations interviews transcribed farsi translated english analysis results experts considered nutrition food systems knowledge important schoolleavers embedded within peoples routine life nutrition food systems knowledge framework assist iranian schoolleavers make informed decisions foodrelated areas developed comprising five major clusters several subclusters major clusters included knowledge nutrition basics food production food selection preparation storage wastage prevalent nutrition problems