KCEP 210: Aging and Frailty

Aging and Frailty in the Elderly

Definition of Seniors

  • Seniors are typically defined as individuals aged 65 years and older.

Case Study: Female Soccer Players in South Africa

  • An intriguing example is frail elderly women in South Africa, who initially started playing soccer as a joke.

  • Now, these women are successfully competing in soccer, breaking away from cultural expectations regarding aging.

  • The oldest player cited is 84 years old.

Aging Statistics in Canada

Current Trends

  • If current population trends continue, it is projected that seniors will outnumber children by a factor of 3:2 in 20 years (Source: Statistics Canada).

  • Since 2015, Canada has recorded more seniors than children.

  • Current demographic statistics indicate that 1 in 6 Canadians is at least 65 years old.

Median Age

  • The median age of the Canadian population is around 40 years.

Age Distribution Statistics (as of July 1, 2010)

  • Total Canadian Population: 34,108,752

  • Age Breakdown:

    • 0 to 14 years: 16.5%

    • 15 to 64 years: 69.4%

    • 65 years and over: 14.1%

  • Breakdown by Province:

    • Newfoundland and Labrador: 14.8% (Median Age: 43.3)

    • Prince Edward Island: 16.2% (Median Age: 42.1)

    • Nova Scotia: 14.8% (Median Age: 42.8)

    • New Brunswick: 15.1% (Median Age: 42.7)

    • Quebec: 15.6% (Median Age: 41.2)

    • Ontario: 16.7% (Median Age: 39.4)

    • Manitoba: 18.8% (Median Age: 37.7)

    • Saskatchewan: 18.9% (Median Age: 37.5)

    • Alberta: 18.3% (Median Age: 35.8)

    • British Columbia: 15.1% (Median Age: 40.8)

    • Yukon: 17.2% (Median Age: 38.9)

    • Northwest Territories: 21.8% (Median Age: 31.5)

    • Nunavut: 31.5% (Median Age: 24.6)

Common Conditions Among Seniors

  • The percentage of seniors with disabilities increases with age.

  • The most prevalent chronic conditions among older adults include:

    • Hypertension

    • Arthritis

    • Heart Diseases

    • Back Pain

    • Osteoporosis

    • Cancer

    • Stroke

  • Some seniors may experience multiple conditions simultaneously (e.g., stroke and high blood pressure).

Understanding Frailty

Definition of Frailty

  • Frailty refers to a syndrome commonly found in adults aged 65 and older, characterized by an accelerated decline in both physical and cognitive abilities.

  • Diagnosis of frailty is determined by several factors:

    • Muscle Weakness

    • Decreased Physical Activity

    • Reduced Walking Speed

    • Physical Exhaustion

    • Unintentional Weight Loss

  • Holistic Definition: Increased vulnerability to internal and external stressors resulting from reduced physiological reserves. Common indicators include several of the diagnostic criteria.

Stressors Contributing to Frailty

  • External Stressors: Financial issues (bills), job demands, life changes, environmental pollution, and relationships.

  • Internal Stressors: Chronic stress leading to conditions such as anxiety and depression, along with potential health issues linked to poor nutrition or sleep disturbances.

  • Allostatic Load: The cumulative long-term effects of chronic stress on the body that can lead to illness.

Preventing Frailty

Strategies

  • Effective measures to prevent frailty include:

    • Exercise: Engaging in regular physical activity.

    • Nutrition: Maintaining a healthy and balanced diet.

    • Socialization: Increasing engagement with social groups to lower stress levels.

  • It is emphasized that frailty is preventable.

Key Terms Related to Frailty

  • Sarcopenia: The age-related loss of skeletal muscle mass, contributing to increased vulnerability.

  • Osteopenia: The age-related reduction in bone mineral density, heightening the risk for osteoporosis.

  • Balance Disorders: Disturbances causing unsteadiness, potentially arising from various health conditions or medications.

  • Nutritional Problems: Including loss of appetite in the elderly, which may relate to energy levels, loneliness, or financial limitations.

Physiological Changes Associated with Aging
Cardiovascular Changes

  • Decreased maximum oxygen uptake (VO2 peak) and maximum heart rate.

  • Increased resting and exercise blood pressure.

Musculoskeletal Changes

  • Decreased muscle strength, flexibility, balance, and muscle mass.

Nervous System Changes

  • Increased reaction time with a corresponding decrease in conduction speed by 20%.

  • Decreased sensory system effectiveness.

Metabolic Changes

  • Decreased basal metabolic rate and lean body mass, alongside an increase in body fat.

  • A notably diminished metabolic rate correlates with an increased risk for diabetes.

Impact of Strength Training

  • Training aimed at improving strength can decrease risks associated with reaching a disability threshold in older adults.

  • Muscle strength and mass typically decline significantly, with 65-year-old men experiencing a notable reduction in muscle strength relative to their younger counterparts.

Changes in Posture and Gait

Postural Changes in Frail Older Adults

  • Common postural deviations include:

    • Forward head position

    • Rounded shoulders

    • Kyphosis (rounded back)

    • Knee flexion

  • The progression of these conditions can indicate a broader decline in health and mobility.

Gait Changes in Older Adults

  • Aging commonly results in the following gait alterations:

    • Decreased velocity (speed)

    • Decreased step length

    • Decreased step rate (cadence)

    • Increased duration of the stance phase

    • Decreased hip, knee, and ankle flexion

    • Decreased power generation during push-off.

Exercise Recommendations for Frail Seniors

Aerobic Exercise

  • Activities included: walking, chair exercises, cycling, swimming.

  • Goals: Increase functional capacity and independence.

  • Recommendations:

    • Intensity: RPE of approximately 9-11 (light)

    • Frequency: 3-5 days/week

    • Duration: 30 mins/session (can be divided into two 15-min sessions or three 10-min sessions)

    • Allow for rest periods during exercise.

Strength Training

  • Involves low-level, progressive resistance exercises (e.g., using weights or weight machines).

  • Goals: Improve overall muscular strength, endurance, and mobility while preventing or reversing frailty.

  • Recommendations:

    • Start with no weights, gradually increasing as strength improves.

    • Aim for 10-15 reps for 3 sets, 3 days/week, with about 20 mins/session.

Flexibility (Stretching)

  • Purpose: Maintain or improve the range of motion and prevent injury (e.g., frozen shoulder).

  • Recommendations:

    • Prolong stretches for 10 to 30 seconds, 3 to 5 repetitions, 2-3 times/week.

Neuromuscular Exercises

  • Examples: One-foot stands, tandem gait, and balance exercises.

  • Goals: Enhance balance and coordination, minimize falls, and reduce reaction time.

  • Recommendations:

    • Engage in these exercises 2-3 times/week.

    • Use techniques to reduce and/or distract vision during exercises to enhance balance training.