dse & health & wellbeing

Work Station Ergonomics

Hello


Who am I ?

The UK’s Health & Safety Laboratory

•supports HSE

•enable business success

•saves and improves the lives of workers


Let’s get started then


Holistic approach


Why DSE is a big deal?

investment

financial

morallegal


Evaluation of the Success in Britain of the Directive on Minimum Safety and Health Requirements for Work with DSE (90/270/EEC) Gervais, R.

Why DSE is a big deal? - financial

To what extent have benefits been observed as a direct result of implementing DSE improvements in the workplace?


Why DSE is a big deal? - financial

Total number of cases (prevalence) and new cases (incidence) of work-related MSD 2001- 2014


workstation set-up: BS EN 527:2011


workstation set-up: Seating at Work HSG57


Lack of breaks – how much should we take?

short frequent breaks are more satisfactory than occasional longer breaks: for example a 5-10 minute break after 50-60 minutes continuous screen and/or keyboard work is likely to be better than a 15-20 minute break every 2 hours.”


Key messages so far

• Managing DSE is good for business

• Think holistic (not just DSE assessments)

• Management is well established (and relatively easy)

• Never take a break from taking breaks


Exposure to mobile DSE

http://stakeholders.ofcom.org.uk/market-data-research/statistics/stats14/


(Originally Forrester Research) www.adweek.com Published:11.05.12 Sourced:29.10.13

88%In the living

room

24%At work

79%In the bedroom

Exposure to tablets – where?


Increased MSD with mobile phones use

(Hänninen et al. 2006; Storr, et al. 2007)

Increased hours of hand-held mobile device increased

neck, shoulder and thumb pain

(Berolo et al. 2001)

Increased head and neck, flexion

compared to desktop(Heasman et al. 2000; Young

et al. 2012)

Non dominant hand increased shoulder

flex, load, sustained pinch grip and EMG activity (Lozano 2011;

Young et al. 2012)

Increased deviation from neutral and sustained muscle

activity in non dominant hand (Werner et al. 2005;

Fischer 2009)

Tablets led to more neck and trunk

flexion and elevated shoulders

(Straker et al. 2008)

Exposure to mobile DSE - effects


Exposure to mobile DSE - risks


Fixed

Non-neutral



50°40°60°


Fixed

Non-neutral


30°91°


Fixed

Non-neutral



Fixed

Non-neutral


Fixed


Fixed

Non-neutral


• Lap-Hand, • Lap-Case, • Table-Case,• Table-Movie.

Tablet 1 vs Tablet 2Fixed


Fixed

Non-neutral


• Reduced neck flexion

• Reduced gaze angles

• Perpendicular viewing angles

• Increased neck flexion

• Increased gaze angles

• Oblique viewing angles

Fixed


Fixed

Non-neutral

Tablet 1 vs Tablet 2

Work Station ErgonomicsYoung et al. (2012)

36° 45°

Albin and McLoon (2007)

Fixed


Fixed

Non-neutral


Prolonged

High forcesForce

Average force exerted on a touch

screen was more than six times that

required (Irwin and Sesto 2012)

Non dominant hand increased sustained pinch grip and EMG activity (Lozano 2011;

Young et al. 2012)

Tapping against a touch screen of a

tablet PC may cause MSD problems in the

fingers (Korkki 2011).



3.36kg 0.56kg

12cm2cm

weightBS EN 894-3, Silverstein 1986

• One hand pinching a 1 kg object • One hand gripping a 4 kg object

… or applying an equivalent amount of gripping force

Prolonged

High forcesForce



Risk Controls – fit the device to the user


Task specific stands



Get a (better) grip



Tablet keyboards



Emulate this…. ….here



Risk Control – a healthy workforce

• Mobile DSE is …… mobile.• Can’t rely on monitoring or office based

solutions.

• Must build positive safety culture; • Increase personal transferable

understanding; and • Aim for positive behaviours.


Knowledge

Behavioural Change

Skill

Support

Planning

Personal Susceptibility

Knowledge

Skill

Support

Planning

Sustaining awareness

Lunt, Bennett & Hopkinson HSE RR660

Risk Control – focus on behaviour


Knowledge

Behavioural Change

Knowledge


• Basic anatomy• Injuries and causes• Posture effects• Risks• Company policy


Behavioural Change



• Injury statistics

• Internal case studies

• Symptom awareness

• Personal tracking

• Self assessment


Blackberry Shortcuts:Move to top of a message list TMove to bottom of a message list BMove to next unopened item UMove to next date NMove to previous date PReply to a message RReply to all L

SkillSkill

Behavioural Change

• Workstation setup• Self assessment

• Fingers and thumbs• Approach to training (including play)

• Shortcuts



Behavioural Change

SupportSupport


• Psychosocial factors• Reporting systems• Exposure control• Management commitment• Policies e.g. once a day

emails when out


Behavioural Change

PlanningPlanning


• Risk reduction strategies• Sensible solutions / worker

engagement• Acknowledge good

practice• Work allocation• Appraisals• Turn it off !


Behavioural Change



• Leadership • Toolbox talks• Awareness media• Posters and notices

• e.g. BT “adjust and relax”• vodacom youtube videos

• Nudges • Communication / feedback


Knowledge

Behavioural Change

Skill

Support

Planning


Knowledge

Skill

Support

Planning




Risk Control – training

Behaviour Change: Improving Health and Safety Performance

DSE Ergonomics


• Exposure is up• Risks are present

• We need to stick to what we know• Careful choices required when purchasing device and peripheries, include the users

• Peripheries for all occasions!

• But peripheries only work if people use them – behaviour is a key

Summary

dse & health & wellbeing

Health & Medicine