Exercise and the Elderly. Physiological Changes With Aging Aging or decrease in activity? Quality...
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Exercise and the ElderlyExercise and the Elderly
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Physiological Changes With AgingPhysiological Changes With Aging
Aging or decrease in activity?Aging or decrease in activity?
Quality yearsQuality years
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Changes in maximal oxygen consumptionChanges in maximal oxygen consumption
Muscle mass – sarcopeniaMuscle mass – sarcopenia– Muscular Strength and EnduranceMuscular Strength and Endurance
Fat deposition and body compositionFat deposition and body composition
Bone mineral density Bone mineral density – OsteopeniaOsteopenia– Osteoporosis Osteoporosis
Diagnosed using T-Score cmoparing to normal Diagnosed using T-Score cmoparing to normal young adultsyoung adults
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World Health Organization Criteria World Health Organization Criteria for Classifying BMDfor Classifying BMD
ClassificationClassification T-Score T-Score
Normal BMDNormal BMD -1.0 or greater-1.0 or greater
OsteopeniaOsteopenia -1.01 to -2.49-1.01 to -2.49
OsteoporosisOsteoporosis -2.5 or less-2.5 or less
Severe OsteoporosisSevere Osteoporosis -2.5 or less + -2.5 or less +
fragility fracturefragility fracture
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OsteoporosisOsteoporosis
Bone turnoverBone turnover– PTH and vitamin D3 hormonePTH and vitamin D3 hormone
Peak BMDPeak BMD– Trochanter and femoral neck in mid to late Trochanter and femoral neck in mid to late
teensteens– Spine in mid 20sSpine in mid 20s
Determinants of peak BMDDeterminants of peak BMD– 70-80% genetics70-80% genetics– 20-30% lifestyle20-30% lifestyle
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Bone lossBone loss– Age related 0.5 – 1%/yearAge related 0.5 – 1%/year– Menopause 1-2%/year for a 5-10 year periodMenopause 1-2%/year for a 5-10 year period– Loss of BMD will continue to pre-adolescent Loss of BMD will continue to pre-adolescent
levelslevels
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Fragility fractureFragility fracture– Women - Forearm Women - Forearm ↑↑ at age 45-50 leveling off at age 45-50 leveling off
at 65at 65Men – no Men – no ↑↑
– Women - Vertebral Women - Vertebral ↑↑ age 55-60 rising linearly age 55-60 rising linearly with agewith age
Men – Men – ↑↑ 60-70 yrs 60-70 yrs
– Women – Hip Women – Hip ↑↑ at age 65 and rises at age 65 and rises exponentially thereafterexponentially thereafter
Men – Men – ↑↑ 70-75 yrs 70-75 yrs
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Distal forearm fracturesDistal forearm fractures– Excellent marker for future riskExcellent marker for future risk– Wedge fracture at L2 Wedge fracture at L2 →→
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Exercise TestingExercise Testing
Functional testsFunctional tests
Potential effects of osteoarthritisPotential effects of osteoarthritis
Impact of muscular enduranceImpact of muscular endurance
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Training the ElderlyTraining the Elderly
Still adapt normally to exerciseStill adapt normally to exercise– ↑ ↑ fitness levels associated with reduced mortality fitness levels associated with reduced mortality
and ↑ life expectancyand ↑ life expectancy
Differences between training frail versus Differences between training frail versus healthy elderlyhealthy elderly– Functional capacity and balanceFunctional capacity and balance– Simple functional testsSimple functional tests
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Training the ElderlyTraining the Elderly
Flexibility trainingFlexibility training
Resistance TrainingResistance Training– Important to ADLs and RMRImportant to ADLs and RMR– Careful evaluation of HTN elderlyCareful evaluation of HTN elderly– Arthritics train through pain-free ROMArthritics train through pain-free ROM– Reps 2-3s concentric, 4-6s eccentric, 8-12 Reps 2-3s concentric, 4-6s eccentric, 8-12
reps to failure, 2d/wk, progress every 2-3 wksreps to failure, 2d/wk, progress every 2-3 wks
BreathingBreathing
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Reducing risksReducing risks
Calcium intakeCalcium intake– Vitamin DVitamin D
ExerciseExercise
PosturePosture
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