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Lean and fat mass as determinants of muscle strength and insulin sensitivity in Chilean elderly subjects.
J Nutr Health Aging. 2004; 8(5):374-8.JN

Abstract

PURPOSE

To report the association of lean body mass with nutritional, social and economic factors and its functional consequences in free living healthy elderly subjects.

MATERIAL AND METHODS

Healthy elderly subjects of low socioeconomic level were studied. Monthly income, marital status, anthropometric measures and fall risk were assessed. Mini Nutritional Assessment score was calculated. Body composition and bone mineral density were measured by double beam X ray absorptiomentry. Fasting serum lipids, fasting and postprandial insulin and glucose levels were measured. Hand grip, quadriceps and biceps strengths and maximal inspiratory and expiratory pressures were measured.

RESULTS

One hundred and nine subjects (56 women), aged 75 +/- 4 years old were studied. Lean body mass was 34.1 +/- 4 and 49.2 +/- 5.4 kg in women and men respectively (p < 0.001), fat mass was 22.8 +/- 7.1 and 20.7 +/- 6.4 kg in women and men respectively (p= NS). Lean body mass correlated with hand grip, quadriceps and biceps muscle strengths in men and with quadriceps and biceps strength in women. Men that exercised regularly had higher quadriceps strength and maximal expiratory pressure. Total body fat correlated positively with fasting and postprandial serum insulin levels.

CONCLUSIONS

In this sample, lean body mass is directly related to muscle strength mostly in men. On the other hand, total fat mass is related to serum insulin levels.

Authors+Show Affiliations

INTA, University of Chile, PO Box 138-11, Santiago, Chile. dbunout@uec.inta.uchile.clNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15359355

Citation

Bunout, D, et al. "Lean and Fat Mass as Determinants of Muscle Strength and Insulin Sensitivity in Chilean Elderly Subjects." The Journal of Nutrition, Health & Aging, vol. 8, no. 5, 2004, pp. 374-8.
Bunout D, Barrera G, De La Maza T, et al. Lean and fat mass as determinants of muscle strength and insulin sensitivity in Chilean elderly subjects. J Nutr Health Aging. 2004;8(5):374-8.
Bunout, D., Barrera, G., De La Maza, T., Avendaño, M., Gattas, V., Petermann, M., & Hirsch, S. (2004). Lean and fat mass as determinants of muscle strength and insulin sensitivity in Chilean elderly subjects. The Journal of Nutrition, Health & Aging, 8(5), 374-8.
Bunout D, et al. Lean and Fat Mass as Determinants of Muscle Strength and Insulin Sensitivity in Chilean Elderly Subjects. J Nutr Health Aging. 2004;8(5):374-8. PubMed PMID: 15359355.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Lean and fat mass as determinants of muscle strength and insulin sensitivity in Chilean elderly subjects. AU - Bunout,D, AU - Barrera,G, AU - De La Maza,T, AU - Avendaño,M, AU - Gattas,V, AU - Petermann,M, AU - Hirsch,S, PY - 2004/9/11/pubmed PY - 2005/5/27/medline PY - 2004/9/11/entrez SP - 374 EP - 8 JF - The journal of nutrition, health & aging JO - J Nutr Health Aging VL - 8 IS - 5 N2 - PURPOSE: To report the association of lean body mass with nutritional, social and economic factors and its functional consequences in free living healthy elderly subjects. MATERIAL AND METHODS: Healthy elderly subjects of low socioeconomic level were studied. Monthly income, marital status, anthropometric measures and fall risk were assessed. Mini Nutritional Assessment score was calculated. Body composition and bone mineral density were measured by double beam X ray absorptiomentry. Fasting serum lipids, fasting and postprandial insulin and glucose levels were measured. Hand grip, quadriceps and biceps strengths and maximal inspiratory and expiratory pressures were measured. RESULTS: One hundred and nine subjects (56 women), aged 75 +/- 4 years old were studied. Lean body mass was 34.1 +/- 4 and 49.2 +/- 5.4 kg in women and men respectively (p < 0.001), fat mass was 22.8 +/- 7.1 and 20.7 +/- 6.4 kg in women and men respectively (p= NS). Lean body mass correlated with hand grip, quadriceps and biceps muscle strengths in men and with quadriceps and biceps strength in women. Men that exercised regularly had higher quadriceps strength and maximal expiratory pressure. Total body fat correlated positively with fasting and postprandial serum insulin levels. CONCLUSIONS: In this sample, lean body mass is directly related to muscle strength mostly in men. On the other hand, total fat mass is related to serum insulin levels. SN - 1279-7707 UR - https://www.unboundmedicine.com/medline/citation/15359355/Lean_and_fat_mass_as_determinants_of_muscle_strength_and_insulin_sensitivity_in_Chilean_elderly_subjects_ L2 - https://medlineplus.gov/bonedensity.html DB - PRIME DP - Unbound Medicine ER -