The Role of Exercise in Falls Prevention Dr Dawn Skelton PhD Reader in Ageing and Health, HealthQWest, Glasgow Caledonian University Co-ordinator of Prevention of Falls Network Europe, University of Manchester Falls in the UK 11 million people aged > 65 yrs 28,000 women aged > 90 yrs Fractures costs £1.8 billion 1 Hip Fracture every 10 mins – Cost £12-15K 1 Wrist Fracture every 9 mins – Cost £500 Changing site of fracture >age 500 admitted to Hospital every day 33 never go home Bandolier and Annual European Home and Leisure Accident Surveillance Survey (EHLASS) Report UK 2000 Studies assessing fall risk factors per se: [Rubenstein & Josephson 2002] Summary of 12 major studies of fall causes Accident /Environment 31% Gait /Balance /Weakness 17% Dizziness vertigo 13% Drop attacks 9% Confusion 5% Postural hypotension 3% Visual disorder 2% Syncope 0.3% Other 15% Unknown 5% Individual risk factors: 16 controlled studies Weakness 11/11 Balance deficit 9/9 Mobility limitation 9/9 Gait deficit 8/9 Visual deficit 5/9 Cognitive impairment 4/8 Impaired ADL 5/9 Postural hypotension 2/7 Time – Disease - Disuse EVEN HEALTHY OLDER PEOPLE LOSE... Strength Power Bone density Balance Stamina Flexibility Cognitive Function Maintenance of temperature control Sedentary behaviour increases the loss of performance... International Consensus World Health Organisation, 1996 “regular physical activity helps to preserve independent living” and “postpone the age associated declines in balance and co-ordination that are major risk factors for falls” Surgeon General, USA, 1997 “Sedentariness is a major public health issue” We are all trippers….but when do we become fallers? Community Dwelling >65 years Compared to non-fallers, fallers have – ⇩ quadriceps and hamstring strength (NS) – ⇩ ankle plantarflexion, dorsiflexion, inversion and eversion strength – ⇩ lower limb explosive power – ⇧ asymmetry between limbs in power and strength Skelton, Kennedy, Rutherford Age Ageing 2002 Fear and avoidance of activity Present in >50% of fallers & up to 40% non-fallers Predicts – decreases in physical and social activity – deterioration in physical functioning – higher risk of falling Particularly common in people who cannot get up from the floor Lessons that last a lifetime Sensory Input Stability Three main sources of input Visual information Vestibular information Proprioceptive information Falls Prevention Approaches Individual Approach (high risk patients) – Multi-factorial (ie. Falls Clinics) Unclear evidence – Uni-factorial (ie. Exercise) Good evidence BUT… Population based approach (targeting communities) – Emerging evidence, Relative reduction in fallrelated injuries 6 to 33% – Most include increasing awareness and physical activity, medication and home hazard reviews Reviews of Exercise Evidence 1995 – Province MA et al. - J Am Med Assoc. 273:1341-1347. 1999 – Skelton & Dinan – Physio: Theory & Practice 15:105-120 2000 - Gardner M et al. - Br J Sports Med. 34: 7-17 2001 - Skelton D - Age Ageing 30;S4: 33-39 2002 – Skelton & Beyer – Scand J Med Sports Sci 13:1-9 2004 - Chang et al. – Brit Med J 328: 680-687 – Multifactorial interventions reduce risk (RR 0.82) – Exercise only interventions reduce risk (RR 0.86) Know what to avoid… Intervention: Brisk walking Control: exercise of upper arm Falls risk (Brisk walking > control) Beware uneven pavements! Ebrahim et al. (1997) Care and encouragement Type of Exercise Back extension Flexion (abd. curls) Combined No exercise Sinaki 1987 Reoccurrence of Vertebral Fracture 16% 89% 53% 67% ‘Pitfalls’ of interventions that don’t work Insufficient duration Insufficient intensity Insufficient tailoring or specificity of training Insufficient progression Not enough time on feet! Balance Principles Changes of direction, pace and level, head position, weight (transference) Sustained, controlled 3D moves Progressively challenging tasks to improve gaze stabilisation Obstacle courses Floor work: balances, crawling, rolling, shuffling in seated position Ball games Breakdown all moves into 'steps' or stages Interventions that work…….. Province, 1995 Group and individual balance and strength training >65’s Wolf, 1996 Group Tai Chi >65’s (NOT >70’s at risk, Wolf 2003) Campbell, 1997 Home-based exercise >80’s (OEP) Robertson, 2001 Home-based exercise >65’s and >80’s (OEP) Day, 2002 Group exercise >70’s at risk Barnett, 2003 Group exercise >65’s at risk Lord, 2003 Group exercise >60’s retirement village Skelton, 2005, 2008 Group Exercise >65’s frequent fallers (FaME or PSI) Tai Chi – prevention of st 1 fall? - Community Dwelling older people with mild deficits of strength/balance, 2x/week for 15 weeks Wolf et al. (1996) – Cut trip and fall rate by half - Frail older adults aged 70-97, 2 x/week for 48 weeks - no significant reduction in risk of falls Wolf et al. J Am Geriat Soc 2003; 55: 1693-1701 - Community Dwelling older people aged 70+ - 3 x/week for 24 weeks - Increased Falls Self-Efficacy and Decreased Fear of Falling Li et al. J Gerontol B Psychol Sci Soc Sci 2005; 60:P34-40 Campbell et al, BMJ, 1997 Robertson et al, BMJ, 2001 Effective Home Exercise (OEP) Community Dwelling >80 year old women 1 Year duration - Physiotherapist support home-based tailored progressive strength, balance and gait training (3x p/w) 20-30% reduction in risk Campbell J et al., BMJ, 1997 Then - Physiotherapist led nurse training –For over 65’s – cost effective –For over 80’s – saves money Robertson C et al., BMJ, 2001 Then – with Visually Impaired Older People - Not effective unless fully compliant Campbell J et al., BMJ, 2005 FaME – Group Exercise (PSI) Aims to: With evidence based activities: • Increase balance • Increase functional capacity • Increase bone / muscle mass • Increase confidence (reduce fear of falling) Dynamic balance training Targeted resistance training Targeted bone loading Functional movements Dynamic endurance training for balance Backward chaining Functional floor activities Adapted Tai Chi cool down Following Frequency, Intensity, Duration and contraindication guidelines (ACSM) DYNAMIC BALANCE TRAINING DYNAMIC BALANCE TRAINING Teaching Floor Skills Teaching transfer skills FaME – managing frequent fallers RCT - Women aged 65+ with a history of 3 or more falls in previous year Exercise-only intervention – 9 months Group exercise – individually tailored, trained exercise instructors Falls risk decreased by half – RR 0.46 Significantly less people in exercise group had died, entered a nursing home or were in hospital after 3 years Skelton et al. 2005 STRENGTH / POWER / ASYMMETRY FaME Significant isometric and isokinetic improvements in the exercise group: • Ankle Plantarflexion 60% • Ankle Dorsiflexion 40% • Ankle Inversion 25% • Ankle Eversion 30% • Hip Flexion 20% • Lower Limb Power 25% • Asymmetry reduced 15% FaME – Bone improvements Significant difference with time and group for L2-L4 spine and Wards Triangle (F=3.46, p<0.05). Exercisers n=32, Controls n=14. Time between visit 1 and visit 2 = mean 10.9 (sd 2.7) months Skelton et al. J.Aging Phys Act 2008, Abstract Quality of Life – adding life to years Improvements in ALL domains of SF36 (QoL) Self-reported improvements in – – – – – – – Caring skills Playing with grandchildren Bathing instead of showering Using public transport again Reduced fear Increased activity outdoors Confidence Fallen Angels Club – Meet every two months in Starbucks, Oxford Street, London, UK! Nursing Home Residents Individually tailored GROUP exercise as part of a multifactorial intervention (staff training, environment modification, drug review etc) Reduces falls - Becker et al. J Am Geriat Soc 2003; 51:306-313 Improves mobility - Jensen et al. Aging Clin Exp Res 2004; 16: 283-292 Reduces falls risk factors - Dyer et al. Age Ageing 2004; 33:596-602 Nursing Home Residents 1 to 1 training Whole Body Vibration vs Physical Therapy 42 residents, RCT 2 x/week for 6 weeks Reduction in risk factors (Gait, Balance, TUG, QoL) Bruyere O et al. Arch Phys Med Rehabil 2005:86: 303-307 • 6 months training in post-menopausal women • Strength 15%, Hip BMD 1% Verschueren SM et al. J Bone Miner Res 2004; 19: 352-359 Patients in Hospital Tai Chi + reaching + stepping + transferring chair to chair 1 physiotherapist to max 4 patients, 3 x p/w, 45 mins. 173 patients, 82 yrs, sub-acute ward Halved the number of falls (participant days in hospital) Haines et al. Clin Rehab 2007; 21:742-753 My residents are too frail? Dose response curve The lower the baseline level of physical activity, the greater the health benefit associated with an increase in physical activity. Exercise can be adapted for any medical condition (Haskell 1994) There would be no falls if there was no rehabilitation! (Oliver, D – 2006) Confidence in instruction & teaching to increase effectiveness? Provision of Effective Group Exercise Physiotherapist Postural Stability Instructor Otago Exercise Programme Leader Seniors Exercise Instructor UK’s FOUR EXERCISE GROUPS REFERRAL FALLS REHABILITATION GROUP ‘FaME’ GROUP (PSI) EXERCISE CHAIR BASED OTAGO HOME PROGRAMME EXERCISE GROUP Community Exercise for the Older Person Sessions (Tai Chi, EXTEND, YFIT etc) Service Evaluation – PSI classes Average age 82 years, n=124 Average attendance 79% Improved functional reach (p<0.01) & Timed up & go (p<0.05) Improved quality of life SF36 (p<0.05) Confidence in Balance (p<0.05) Timed Floor Rise (p<0.01) Simey, Skelton, Dinan, Land & Irwin (BMJ letter, 2001) “I can walk upstairs now. I haven’t been able to walk upstairs for four years. I do my exercises every day at home. I know it’s doing me good” Recommendations for Exercise interventions to reduce the risk of falls and injuries Exercise works best within a multi-factorial intervention programme – Exercise should have components of balance, low impact aerobic and strength – To reduce fear, floorwork is recommended To be effective the exercise must be specific, regular (2-3 p/w), progressive, and exceed 15 weeks duration for those at risk of falls and 9 months for those who are already falling regularly www.profane.eu.org www.helptheaged.org.uk/Health/HealthyAgeing/Falls /_practitioners.htm For information on Books, Videos and other Resources on Falls Prevention including training see www.laterlifetraining.co.uk “Man does not cease to play because he grows old. Man grows old because he ceases to play” George Bernard Shaw