Effectiveness of exercise and protein supplementation intervention on body composition, functional fitness, and oxidative stress among elderly Malays with sarcopenia

Suzana Shahar, Norshafarina Shari Kamaruddin, Manal Badrasawi, Noor Ibrahim Mohamed Sakian, Zahara Abdul Manaf, Zaitun Yassin, Leonard Joseph

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Sarcopenia, characterized as muscle loss that occurs with aging, is a major health problem in an aging population, due to its implications on mobility, quality of life, and fall risk. Protein supplementation could improve the physical fitness by increasing protein anabolism, and exercise has a documented evidence of positive effect on functional status among the elderly. However, the combined effect of both protein supplementation and exercise has not been investigated among sarcopenic elderly in the Asian population. Thus, this study aimed to determine the effectiveness of exercise intervention and protein supplementation either alone or in combination for 12 weeks, on body composition, functional fitness, and oxidative stress among elderly Malays with sarcopenia. Sixty five sarcopenic elderly Malays aged 60-74 years were assigned to the control group, exercise group (ExG), protein supplementation group (PrG), or the combination of exercise and protein supplementation group. A significant interaction effect between body weight and body mass index (BMI) was observed, with the PrG (-2.1% body weight, -1.8% BMI) showing the highest reductions. Further, there was a decrease in % body fat (-4.5%) and an increase in fat-free mass (kg) (+5.7%) in the ExG after 12 weeks (P < 0.05). The highest increments in lower and upper body strength were observed in the PrG (73.2%) and ExG (47.6%), respectively. In addition, the ExG showed a reduction in superoxide dismutase (SOD) levels, and both interventions did not alter either lipid or protein oxidation. In conclusion, the exercise program was found to improve muscle strength and body composition, while protein supplementation reduced body weight and increased upper body strength, among sarcopenic elderly in Malaysia.

Original languageEnglish
Pages (from-to)1365-1375
Number of pages11
JournalClinical Interventions in Aging
Volume8
DOIs
Publication statusPublished - 9 Oct 2013

Fingerprint

Sarcopenia
Body Composition
Oxidative Stress
Exercise
Proteins
Body Weight
Body Mass Index
Physical Fitness
Malaysia
Muscle Strength
Population
Superoxide Dismutase
Adipose Tissue
Fats
Quality of Life

Keywords

  • Aging population
  • Asian
  • Malaysia
  • Protein supplement
  • Sarcopenic elderly

ASJC Scopus subject areas

  • Geriatrics and Gerontology

Cite this

Effectiveness of exercise and protein supplementation intervention on body composition, functional fitness, and oxidative stress among elderly Malays with sarcopenia. / Shahar, Suzana; Kamaruddin, Norshafarina Shari; Badrasawi, Manal; Mohamed Sakian, Noor Ibrahim; Abdul Manaf, Zahara; Yassin, Zaitun; Joseph, Leonard.

In: Clinical Interventions in Aging, Vol. 8, 09.10.2013, p. 1365-1375.

Research output: Contribution to journalArticle

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