Fish-oil supplementation enhances the effects of strength training in elderly women
Rodacki CL, Rodacki AL, Pereira G, Naliwaiko K, Coelho I, Pequito D, Fernandes LC
The American journal of clinical nutrition · 188 citas
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2012-01-06 · Am J Clin Nutr · vol. 95 · número 2 · págs. 428–436
- Editorial
- Elsevier BV
- Citado
- 274 citas · más que el 99% de estudios similares · 11.8× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 37 trabajos
- Acceso
- Lectura gratuita
- Áreas de investigación
- Fatty Acid Research and Health · Nutrition and Health in Aging · Muscle metabolism and nutrition
- Palabras clave
- fish oil supplementation, omega-3 polyunsaturated fatty acids, resistance training, older women, muscle strength, functional capacity, neuromuscular system, electromechanical delay, muscle activation, peak torque, rate of torque development, aging
- MeSH
- muscle, skeletal, humans, dietary fats, fatty acids, omega-3, fish oils, activities of daily living, movement, torque, physical education and training, physical fitness, dietary supplements, middle aged, female, muscle strength, resistance training
7 autores
- Cintia LN Rodacki🇧🇷Universidade Federal do Paraná
- André Luíz Félix Rodacki🇧🇷Universidade Federal do Paraná; Universidade Positivo
- Gléber Pereira🇧🇷Universidade Federal do Paraná; Universidade Positivo
- Katya Naliwaiko🇧🇷Universidade Federal do Paraná; Universidade Positivo
- Isabela Coelho🇧🇷Universidade Federal do Paraná; Universidade Positivo
- Daniele Pequito🇧🇷Universidade Federal do Paraná; Universidade Positivo
- Luiz Cláudio Fernandes🇧🇷Universidade Federal do Paraná; Universidade Positivo
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
Muscle force and functional capacity generally decrease with aging in the older population, although this effect can be reversed, attenuated, or both through strength training. Fish oil (FO), which is rich in n-3 (omega-3) PUFAs, has been shown to play a role in the plasma membrane and cell function of muscles, which may enhance the benefits of training. The effect of strength training and FO supplementation on the neuromuscular system of the elderly has not been investigated.
Objective
The objective was to investigate the chronic effect of FO supplementation and strength training on the neuromuscular system (muscle strength and functional capacity) of older women.
Design
Forty-five women (aged 64 ± 1.4 y) were randomly assigned to 3 groups. One group performed strength training only (ST group) for 90 d, whereas the others performed the same strength-training program and received FO supplementation (2 g/d) for 90 d (ST90 group) or for 150 d (ST150 group; supplemented 60 d before training). Muscle strength and functional capacity were assessed before and after the training period.
Results
No differences in the pretraining period were found between groups for any of the variables. The peak torque and rate of torque development for all muscles (knee flexor and extensor, plantar and dorsiflexor) increased from pre- to posttraining in all groups. However, the effect was greater in the ST90 and ST150 groups than in the ST group. The activation level and electromechanical delay of the muscles changed from pre- to posttraining only for the ST90 and ST150 groups. Chair-rising performance in the FO groups was higher than in the ST group.
Conclusions
Strength training increased muscle strength in elderly women. The inclusion of FO supplementation caused greater improvements in muscle strength and functional capacity.
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