ExSc Testing & Rx: Lecture 17: Exercise Prescription for Older Adults

What is the standard age classification for “older adults”?

65 years or older.

Who is also considered “older adults” based on clinical classification?

Ages 50–64 with clinically significant conditions or physical limitations.

What is biological age?

Age based on functional ability and fitness level rather than chronological age.

Can biological age be changed?

Yes, it can be improved (reversed) through better fitness habits.

What happens to max heart rate with aging?

It decreases due to reduced sympathetic nervous system response.

What happens to stroke volume with aging?

It decreases due to reduced left ventricular function.

What happens to lung function with aging?

Reduced lung capacity and higher residual volume due to weaker diaphragm and decreased lung elasticity.

Why does muscle mass decrease with age?

Motor neuron loss (denervation), satellite cell loss, mitochondrial dysfunction, decreased testosterone, and IGF-1.

What percentage of older adults meet physical activity guidelines?

About 12%.

What percentage of adults over 85 meet guidelines?

Less than 5%.

When is exercise testing recommended for older adults?

Only if requested by a healthcare provider due to higher health risks.

Why is exercise testing more limited in older adults?

Higher prevalence of cardiovascular, metabolic, and orthopedic conditions.

What is a key consideration in testing older adults?

Higher likelihood of early test termination.

How should exercise testing be started in older adults?

Light workload with small increments (0.5–1 MET increases).

What is considered light exercise in METs?

Less than 3 METs.

What treadmill protocol is often used for older adults?

Discontinuous protocol (e.g., Naughton Test).

What is a limitation of treadmill testing in older adults?

Many exceed age-predicted HR max and may need handrails.

Why can handrail use be a problem in treadmill testing?

It can overestimate VO₂max.

When is cycle ergometer testing preferred?

For individuals with poor balance, orthopedic limitations, gait issues, or vision problems.

What is a limitation of cycle ergometer testing?

Local muscle fatigue may cause early test termination.

Why is physical performance testing often used instead of exercise testing in older adults?

It is safer, cheaper, requires little equipment, and is easy to administer.

What is the Senior Fitness Test used for?

Assessing strength, flexibility, aerobic endurance, and balance in adults aged 60–94.

What is the Short Physical Performance Battery (SPPB) used for?

Predicting risk of disability, institutionalization, and mortality.

What is neuromotor training?

Training that improves balance, agility, and proprioception.

Who benefits most from neuromotor training?

Older adults with fall risk or neuromuscular limitations.

How often should neuromotor training be done?

2–3 days per week.

Why are falls important in older adults?

Leading cause of fatal injury and hospitalization.

How common are falls in older adults?

About 1 in 4 older adults falls each year.

What are 4 behavioral strategies for older adults?

Social support, self-efficacy, safety, and empowerment.

How should exercise intensity be adjusted for cognitive impairment?

Keep exercise at moderate intensity for safety.

What is the aerobic exercise recommendation for older adults?

30–60 min/day moderate intensity, 5 days/week OR 20–30 min/day vigorous, 3 days/week.

What type of resistance training is especially beneficial for fall prevention?

Power training.

How often should resistance training be done?

At least 2 days per week.

What supervision is recommended for resistance training in older adults?

At least 2 supervised and monitored sessions per week.

How long should stretches be held in older adults?

30–60 seconds.

How often should flexibility training be done?

At least 2 days per week.

What type of stretching is recommended?

Static stretching.

How should exercise progression be in older adults?

Very conservative.

What are examples of neuromotor training exercises?

Tandem walking, circle turns, toe/heel raises, Tai Chi.

What is Tai Chi?

Slow, controlled movements with breathing techniques that improve balance and coordination.