Related Experiment Video
Updated: Mar 8, 2026

Author Spotlight: Assessing Surgical Frailty with Point-of-Care Ultrasound of Quadriceps Muscles
Published on: July 26, 2024
Nutrition, frailty, and sarcopenia.
Alfonso J Cruz-Jentoft1, Eva Kiesswetter2, Michael Drey2
1Servicio de Geriatría, Hospital Universitario Ramón y Cajal (IRYCIS), Ctra.Colmenar km 9,1, 28034, Madrid, Spain. alfonsojose.cruz@salud.madrid.org.
Malnutrition significantly impacts frailty and sarcopenia, increasing physical dependence risk in older adults. Nutritional interventions show promise in managing these age-related conditions.
Area of Science:
- Geriatrics and nutritional science.
- Focus on age-related physical decline and its management.
Background:
- Frailty and sarcopenia are critical concerns in geriatric care, aiming to prevent physical dependence.
- Definitions are evolving, with significant overlap in physical manifestations.
- Malnutrition, encompassing undernutrition and obesity, is a key factor in their development.
Purpose of the Study:
- To review the role of nutrition, including energy, protein, and other nutrients, in muscle function.
- To explore nutrition's potential as a component of multimodal interventions for frailty and sarcopenia.
Main Methods:
- Literature review focusing on energy and protein intake and their impact on muscle function.
- Discussion of the relationship between diet quality across the lifespan and the incidence of frailty and sarcopenia.
- Reference to the SPRINTT trial for insights into multimodal interventions.
Main Results:
- Malnutrition is central to the pathogenesis of frailty and sarcopenia.
- Dietary quality throughout life is closely linked to the incidence of these conditions.
- Nutritional interventions may reduce or reverse frailty and sarcopenia.
Conclusions:
- Nutrition is a crucial element in addressing frailty and sarcopenia.
- Multimodal strategies incorporating nutritional support are vital for managing these geriatric conditions.
- Further insights are expected from trials like SPRINTT on intervention effectiveness.
Related Concept Videos
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
The Effect of Aging on Tissues
Overview of Protein Metabolism
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Metabolic States of the Body: Fasting and Starvation
Anorexia Nervosa
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

