Falls are the leading cause of injury-related morbidity and mortality in older adults. One in four adults over 65 falls each year, and falls account for 95% of hip fractures. Falls are not an inevitable consequence of aging — most are preventable through systematic risk assessment and intervention.
Age-Related Changes in Gait and Balance
Normal aging alters gait: walking speed slows (approximately 1% per year after age 60), stride length shortens, double support time increases, and arm swing decreases. Balance declines due to decreased vestibular function (inner ear), diminished proprioception (sensory feedback from joints), reduced muscle strength (sarcopenia), slowed reaction time, and impaired vision. Fear of falling further reduces activity, leading to deconditioning and increased fall risk — a vicious cycle.
Fall Risk Assessment
All older adults should be asked at least annually about falls in the past year. The CDC Stopping Elderly Accidents, Deaths and Injuries (STEADI) initiative provides a systematic approach. The Timed Up and Go (TUG) test measures the time to stand up from a chair, walk 3 meters, turn, walk back, and sit down — >12 seconds indicates elevated fall risk. The 30-Second Chair Stand test measures lower extremity strength. The 4-Stage Balance Test assesses static balance.
Multifactorial risk assessment. A comprehensive fall risk assessment includes: fall history (circumstances, frequency, injuries), medication review (especially sedatives, antihypertensives, anticholinergics, hypoglycemics), orthostatic blood pressure measurement, vision assessment (acuity, cataracts, glaucoma), neurologic examination (strength, sensation, gait, balance, cognition — impaired cognition doubles fall risk), foot problems and footwear, and environmental assessment (home hazards).
Multifactorial Fall Prevention
The USPSTF recommends multifactorial fall prevention interventions for community-dwelling adults 65+ at increased fall risk.
Exercise programs. The most effective single intervention. Programs should include balance training (Tai Chi, yoga, standing exercises) and strength training (lower extremity strengthening). The Otago Exercise Program — a home-based, physiotherapist-prescribed program of strength and balance exercises — reduces falls by 35%. Group exercise classes that include balance and strength components are also effective.
Medication management. Review and deprescribe medications that increase fall risk: benzodiazepines (strongest association, including PRN use), other sedatives/hypnotics (zolpidem, trazodone), antidepressants (especially SSRIs and TCAs), antipsychotics, anticholinergics (oxybutynin, diphenhydramine), antihypertensives (if causing orthostasis), and hypoglycemics (if causing hypoglycemia).
Vitamin D supplementation. 800 IU/day reduces fall risk in older adults with low vitamin D levels.
Vision assessment and correction. Cataract surgery reduces falls. Bifocal and multifocal glasses impair depth perception on stairs — using single-vision distance glasses for walking is recommended.
Home safety assessment and modification. Remove trip hazards (loose rugs, cords, clutter). Install grab bars in the bathroom, handrails on both sides of stairs, and improved lighting (night lights in hallways and bathrooms). Sturdy railings, non-slip bath mats, and raised toilet seats improve safety.
Footwear. Low-heeled, well-fitting shoes with nonslip soles. Walking barefoot, in socks, or in slippers increases fall risk.
Assistive devices. Canes and walkers improve stability when properly fitted and used. Walker wheels rather than tennis balls on walker legs reduce tripping risk. Hip protectors (padded undergarments) reduce hip fracture risk in high-risk individuals in institutional settings.
Fear of Falling
Fear of falling affects 20–60% of older adults who have not fallen and 40–70% of those who have. It leads to activity restriction, social isolation, deconditioning, and increased fall risk. Addressing fear through education about modifiable risk factors, graded exposure to challenging activities, and building confidence through exercise programs is an important component of fall prevention.
Summary
Falls are common, costly, and preventable. Age-related changes in gait, balance, and strength increase fall risk. Multifactorial risk assessment identifies modifiable risk factors. Exercise programs focusing on balance and strength are the most effective single intervention. Medication review and deprescribing reduce risk. Home safety modifications, vision correction, and appropriate footwear are essential components. Hip fracture carries devastating consequences — prevention is paramount.