Clinical trial NCT01074879: Protein Ingestion and Resistance Exercise in Elderly
Official title: Effects of Protein Quantity and Quality in Combination With Resistance Exercise on Muscle Mass and -Strength in Icelandic Elderly.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Healthy
Keywords: Elderly
protein consumption
resistance exercise
muscle mass
Lead sponsor: University of Iceland
Sponsor class: OTHER
Collaborators: name: Landspitali University Hospital Research Fund
First posted: 2010-02-24
Enrollment: 220
Sex: ALL
Minimum age (years): 65
Standard ages: OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: The mail goal of this randomized controlled, dietary intervention study is to investigate whether protein supplementation in combination with resistance exercise can increase muscle mass and strength in elderly. Loss of muscle mass and -strength is frequent in this group. Participants (N = 220, equal distribution between men and women) are randomized to one of three groups receiving different quantities and qualities of protein supplementation after exercise. The results of this study will be used to form recommendations regarding diet and exercise for the prevention of this frequent health problem in elderly.


Eligibility criteria: Inclusion Criteria:

* 65 years and older

Exclusion Criteria:

* uncontrolled coronary heart disease
* pharmacological interventions with drugs known to affect muscle mass
* major orthopedic disease
* low cognitive function.

Primary outcomes:
Secondary outcomes:
Other outcomes:
Locations:
city: Reykjavik
country: Iceland
facility: Unit for Nutrition Research
Study officials:
References:
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citation: Geirsdottir OG, Chang M, Jonsson PV, Thorsdottir I, Ramel A. Obesity, Physical Function, and Training Success in Community-Dwelling Nonsarcopenic Old Adults. J Aging Res. 2019 Feb 18;2019:5340328. doi: 10.1155/2019/5340328. eCollection 2019.
citation: Geirsdottir OG, Chang M, Briem K, Jonsson PV, Thorsdottir I, Ramel A. Gender, Success, and Drop-Out during a Resistance Exercise Program in Community Dwelling Old Adults. J Aging Res. 2017;2017:5841083. doi: 10.1155/2017/5841083. Epub 2017 Aug 14.
citation: Arnarson A, Gudny Geirsdottir O, Ramel A, Jonsson PV, Thorsdottir I. Insulin-Like Growth Factor-1 and Resistance Exercise in Community Dwelling Old Adults. J Nutr Health Aging. 2015 Oct;19(8):856-60. doi: 10.1007/s12603-015-0547-3.
citation: Ramel A, Geirsdottir OG, Jonsson PV, Thorsdottiri I. C-Reactive Protein and Resistance Exercise in Community Dwelling Old Adults. J Nutr Health Aging. 2015 Aug;19(7):792-6. doi: 10.1007/s12603-015-0548-2.
citation: Geirsdottir OG, Arnarson A, Ramel A, Briem K, Jonsson PV, Thorsdottir I. Muscular strength and physical function in elderly adults 6-18 months after a 12-week resistance exercise program. Scand J Public Health. 2015 Feb;43(1):76-82. doi: 10.1177/1403494814560842. Epub 2014 Nov 27.
citation: Arnarson A, Ramel A, Geirsdottir OG, Jonsson PV, Thorsdottir I. Changes in body composition and use of blood cholesterol lowering drugs predict changes in blood lipids during 12 weeks of resistance exercise training in old adults. Aging Clin Exp Res. 2014 Jun;26(3):287-92. doi: 10.1007/s40520-013-0172-0. Epub 2013 Dec 1.
citation: Geirsdottir OG, Arnarson A, Ramel A, Jonsson PV, Thorsdottir I. Dietary protein intake is associated with lean body mass in community-dwelling older adults. Nutr Res. 2013 Aug;33(8):608-12. doi: 10.1016/j.nutres.2013.05.014. Epub 2013 Jun 27.
citation: Arnarson A, Gudny Geirsdottir O, Ramel A, Briem K, Jonsson PV, Thorsdottir I. Effects of whey proteins and carbohydrates on the efficacy of resistance training in elderly people: double blind, randomised controlled trial. Eur J Clin Nutr. 2013 Aug;67(8):821-6. doi: 10.1038/ejcn.2013.40. Epub 2013 Mar 13.
citation: Ramel A, Arnarson A, Geirsdottir OG, Jonsson PV, Thorsdottir I. Glomerular filtration rate after a 12-wk resistance exercise program with post-exercise protein ingestion in community dwelling elderly. Nutrition. 2013 May;29(5):719-23. doi: 10.1016/j.nut.2012.10.002. Epub 2013 Jan 11.
citation: Geirsdottir OG, Arnarson A, Briem K, Ramel A, Jonsson PV, Thorsdottir I. Effect of 12-week resistance exercise program on body composition, muscle strength, physical function, and glucose metabolism in healthy, insulin-resistant, and diabetic elderly Icelanders. J Gerontol A Biol Sci Med Sci. 2012 Nov;67(11):1259-65. doi: 10.1093/gerona/gls096. Epub 2012 Apr 10.
citation: Geirsdottir OG, Arnarson A, Briem K, Ramel A, Tomasson K, Jonsson PV, Thorsdottir I. Physical function predicts improvement in quality of life in elderly Icelanders after 12 weeks of resistance exercise. J Nutr Health Aging. 2012 Jan;16(1):62-6. doi: 10.1007/s12603-011-0076-7.