GeriQBank · Paper III · Q2
Fried's Criteria
- Topic
- Frailty & Sarcopenia
- Chapter
- Frailty, Sarcopenia, Deconditioning & Biology of Ageing
- Years asked
- Not recorded in the source
- Frequency
- Set 1× in Paper III (2009–2025)
As set in the university paper
Fried’s criteria.
Paper III · Geriatric Assessment, Frailty & Sarcopenia · asked ×1 · 7-mark note · see in paper list
Answer framework
- Definition and origin — Cardiovascular Health Study, 2001; first operational definition; reference standard
- The five criteria and their thresholds
- Scoring and prevalence
- The concept — cycle of frailty; frailty, disability and comorbidity as distinct; predictive value; link with sarcopenia
- Simpler alternatives — SOF index; FRAIL scale
- Advantages and limitations
- Recent updates — LASI; population-specific grip and gait cut-offs; GLIS 2024; simpler tools for screening; cognitive and social frailty
An exam answer plan drawn from the detailed answer below. Use it to attempt the question first.
Detailed answer
Pro · free in betaAttempt it firstOutline your answer as a 7-mark note before revealing it — definition, causes, evaluation, management and the geriatric angle.Reveal answer
Short revision answer
- Fried's criteria (Cardiovascular Health Study, 2001) define the physical phenotype of frailty — the first objective, operational definition and still the reference standard against which other tools are compared.
- Five criteria: unintentional weight loss (10 lb/4.5 kg or 5% in a year); exhaustion (two CES-D items on ≥3 days in the last week); weakness (grip in the lowest 20%, adjusted for sex and BMI); slowness (15-foot walk in the slowest 20%, adjusted for sex and height); low physical activity (kcal per week in the lowest 20%).
- Scoring: 0 = robust, 1–2 = pre-frail, ≥3 of 5 = frail. About 6.9% of older people are frail, women more often than men.
- The basis is a cycle of frailty: sarcopenia → lower strength and VO2 max → slower walking and less activity → lower energy use and intake → weight loss → more sarcopenia. Frailty, disability and comorbidity overlap but predict outcomes independently; the phenotype predicts falls, mobility decline, disability, hospitalisation and death over three years.
- Simpler alternatives: the SOF index (weight loss, unable to rise from a chair five times without arms, low energy; ≥2 of 3 = frail) and FRAIL (Fatigue, Resistance, Ambulation, Illnesses >5, Loss of weight ≥5%; ≥3 of 5 = frail).
- Pros: objective, reproducible, biologically coherent, widely validated. Cons: needs a dynamometer and walking course; ignores cognition, mood and social factors; unusable in wheelchair-bound or acutely ill patients; needs population-specific cut-offs.
- Updates: LASI used modified Fried criteria for national Indian estimates. Absolute cut-offs replace the "lowest 20%": grip <27/<16 kg (EWGSOP2) or <28/<18 kg (AWGS 2019, relevant to India); gait ≤0.8 m/s (EWGSOP2) or 1.0 m/s (AWGS).
- GLIS 2024 separates sarcopenia (a muscle disease) from frailty (a multisystem syndrome). FRAIL, PRISMA-7, gait speed and the CFS are preferred for routine screening, with Fried kept for research and confirmation; cognitive and social frailty need separate assessment.
Condensed by GeriClinics from the detailed answer below, with no new facts added.
15–20 High-Yield Points (Textbook)
Fried's criteria constitute the physical phenotype of frailty, derived from the Cardiovascular Health Study (CHS) and published by Linda Fried and colleagues in 2001.
They provide the first objective, operational definition of frailty and remain the reference standard against which other tools are compared.
Five components: unintentional weight loss, exhaustion, weakness, slow walking speed, and low physical activity.
Weight loss: unintentional loss of 10 lb (about 4.5 kg) in the preceding year (or 5% of body weight).
Exhaustion: self-reported, based on two items of the CES-D scale ("everything I did was an effort" / "I could not get going" for three or more days in the last week).
Weakness: grip strength in the lowest 20% of the population, adjusted for sex and body mass index.
Slowness: walking speed over 15 feet in the slowest 20%, adjusted for sex and height.
Low physical activity: weekly energy expenditure in kcal per week in the lowest 20%, calculated from a physical activity questionnaire.
Scoring: 0 = robust; 1–2 = pre-frail (intermediate); 3 or more of 5 = frail.
By this definition about 6.9% of older people are frail, and women are classified as frail more often than men of the same age.
The phenotype rests on a cycle of frailty: sarcopenia leads to reduced strength and VO max, which reduce walking 2 speed and activity, which lower energy expenditure and intake, causing weight loss and further sarcopenia.
Fried also separated the concepts of frailty, disability and comorbidity, showing they overlap but predict outcomes independently.
The phenotype predicts falls, worsening mobility, incident disability, hospitalisation and death over three years.
Sarcopenia is regarded as the biological substrate of the Fried physical phenotype, and the combined construct "physical frailty and sarcopenia" is now used.
Two simpler validated alternatives are given alongside it in Pathy: the Study of Osteoporotic Fractures (SOF) index and the FRAIL scale.
SOF index (3 items, 2 or more = frail): weight loss; inability to rise from a chair five times without using the arms; reduced energy level.
FRAIL scale (5 items, 3 or more = frail): Fatigue; Resistance (cannot climb one flight of stairs); Ambulation (cannot walk one block); Illnesses (more than five); Loss of weight (5% or more).
Advantages: objective, reproducible, biologically coherent, extensively validated.
Limitations: requires a dynamometer and a measured walking course; excludes cognition, mood and social factors; cannot be applied to wheelchair-bound or acutely ill patients; population-specific cut-offs are needed. Comparison of the Three Scales (Pathy Table 97.1) Cardiovascular Health Study (Fried) Study of Osteoporotic Fractures FRAIL (IANA) Weight loss (10 lb in a year) Weight loss Fatigue Exhaustion (self-report) Inability to rise from a chair five times without using Resistance (climb one flight of arms stairs) Weakness (grip strength, lowest 20%) Reduced energy level Aerobic (walk one block) Walking speed (15 ft, slowest 20%) — Illnesses (more than five) Low physical activity (kcal/week, lowest — Loss of weight (5%)
20%)
3 or more of 5 = frail 2 or more of 3 = frail 3 or more of 5 = frail Latest Updates (2023–Present)
Fried's phenotype remains the most used research definition worldwide and was the instrument used for the national Indian frailty estimates from LASI wave-1 (modified Fried criteria: exhaustion, weak grip, slow gait, unintentional weight loss, low physical activity).
Population-specific cut-offs have replaced the original "lowest 20%" approach in clinical use. Grip strength: EWGSOP2 uses <27 kg in men and <16 kg in women; AWGS 2019 (Asian, relevant to India) uses <28 kg in men and <18 kg in women. Indian community studies report even lower normative values, so applying Western cut-offs overestimates weakness.
Gait speed cut-off has been standardised at 0.8 m/s or slower over 4 metres (EWGSOP2); AWGS uses 1.0 m/s for the Asian population.
The Global Leadership Initiative in Sarcopenia (GLIS, 2024) explicitly separates sarcopenia (a muscle disease) from frailty (a multisystem syndrome), correcting the earlier tendency to use Fried's criteria as a proxy for sarcopenia. Because Fried's phenotype is time-consuming, FRAIL, PRISMA-7, gait speed alone and the Clinical Frailty Scale are preferred for routine screening, with Fried's criteria reserved for research and for confirmation. Growing recognition of cognitive frailty and social frailty (a Social Frailty Index was derived from LASI) as dimensions the purely physical Fried phenotype misses.
Current Practice Update
Issue Textbook (Pathy 6e) Current Evidence
Cut-offs Lowest 20% of the study population for grip, gait Absolute, ethnicity-specific cut-offs (AWGS for and activity Asians: grip <28/<18 kg, gait <1.0 m/s)
Role of the tool Presented as the primary definition of frailty Reference standard for research; simpler tools (FRAIL, CFS, gait speed) preferred for clinical screening Scope Physical domain only Recognition that cognitive, psychological and social frailty must be assessed separately Relation to sarcopenia Overlapping, sarcopenia as substrate GLIS 2024 keeps them conceptually distinct with separate diagnostic pathways Exam One-Liners Fried = CHS phenotype, 2001, five criteria, 3 or more = frail, 1–2 = pre-frail.
The five: weight loss, exhaustion, weakness, slowness, low activity.
Grip adjusted for sex and BMI; gait speed adjusted for sex and height.
Weight loss threshold = 10 lb / 4.5 kg or 5% in one year.
Asian (AWGS) grip cut-offs = 28 kg men, 18 kg women.
SOF = 2 of 3; FRAIL = 3 of 5.
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References
- PAPERS-2-3-4_COMBINED.pdf — page 450
- GeriQBank source PDF — p. 450
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