# Muscle Health as a Vital Metric for Longevity Experts emphasize muscle quality over mass for metabolic regulation and long-term vitality. - **Source:** [NBC News – Health](https://www.nbcnews.com/health) - **Published:** 2026-11-04 - **Topic:** [health](https://brifing.si/c/health) - **Original article:** - **On Brifing:** https://brifing.si/s/6e3b8034-d58d-43b6-8ff5-9028a20b9982 ## Redefining Muscle Health Metrics Medical experts now argue that skeletal muscle quality is as critical as blood pressure for monitoring longevity. Rather than focusing solely on muscle size, clinicians are prioritizing the ratio of muscle to fat. This shift reflects a deeper understanding of how muscle tissue influences metabolic regulation, immune function, and overall physical vitality. ## Metabolic Role of Muscles Muscles serve as the primary storage system for blood sugar, which is essential for maintaining an active metabolism. By effectively managing glucose, healthy muscle tissue helps lower systemic inflammation. This function is vital for preventing metabolic diseases, including Type 2 diabetes, and ensuring the body remains resilient against various chronic health conditions. ## The GLP-1 Medication Factor The rise of GLP-1 medications like Ozempic has highlighted new risks regarding body composition changes. While these drugs improve cardiovascular markers, they can also lead to significant loss of lean skeletal muscle mass. Physicians emphasize that patients undergoing rapid weight loss must prioritize protein intake and resistance exercise to preserve essential muscle function. ## Protein Intake Guidelines To protect against muscle loss, health guidelines recommend a daily protein intake of 1.2 to 1.6 grams per kilogram of body weight. Sources such as fish, poultry, eggs, dairy, and plant-based options like lentils and nuts are encouraged. Consistent, high-quality protein consumption is necessary to support muscle repair and maintain structural integrity. ## Resistance Training Necessity Resistance training is the most effective method for preserving muscle strength, especially during weight loss or aging. Experts suggest engaging in activities like body-weight exercises, resistance bands, or weight machines two to three times weekly. These routines should be adjusted based on an individual’s specific mobility, fitness level, and underlying medical history. ## Muscle Power vs Strength Muscle power, defined as the ability to produce force quickly, often declines faster than raw strength as we age. Researchers note that power is more relevant to daily functional tasks than pure strength. Consequently, maintaining the capacity for rapid movement is a key indicator of long-term physical independence and overall health. ## Measuring Grip Strength Handgrip strength serves as a practical, simple tool for assessing muscle power using a dynamometer. Large-scale analyses suggest that values below 57 pounds for men and 35 pounds for women may indicate low strength. These thresholds vary based on age and body mass index, providing a baseline for clinicians to track patient health. ## Clinical Implications for Aging As individuals age, the relationship between muscle mass and health becomes increasingly complex. Prioritizing functional tests that evaluate endurance, mobility, and power is essential for proactive health management. By integrating these assessments into routine check-ups, doctors can better identify frailty risks and implement targeted interventions to improve patient quality of life. ## Sources covering this story - https://www.nbcnews.com/health/health-news/muscle-health-longevity-grip-strength-research-rcna604766 — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._