Effects of Lower Extremity Eccentric-Based Training on Muscle Strength and Physical Function in Older Adults: A Randomized Controlled Pilot Trial
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PURPOSE: Reduced muscular strength is a key player in loss of physical function and quality of life in older adults. It has been reported that eccentric training has positive effects on the preservation of eccentric strength, produces less delayed onset muscle soreness, and has a lower metabolic cost for older individuals. Therefore, the present study investigated the effects of eccentric-based training on skeletal muscle strength and physical function in older adults. METHODS: Sixteen healthy older subjects (over the age of 65) participated either in eccentric training group (ETG, n=8) or in conventional resistance training group (CTG, n=8) twice a week for eight weeks. The ETG group performed motorized eccentric training, and the CTG group performed a leg press using air pressure. Physical function and muscular strength assessments were performed before and after 8 weeks. The primary outcomes for physical function included gait speed, stair climbing, and the chair stand test, and the secondary outcomes included muscle strength and power. RESULTS: The ETG group demonstrated significant improvements in physical function (gait speed and stair climbing) and muscle strength (isokinetic strength and power in knee tests) (p<0.05) compared to the CTG group after 8 weeks. There were no significant differences for chair stand test (p>0.05) after 8 weeks. CONCLUSIONS: Motorized eccentric-based training was more effective in improving muscle strength and physical function in aged individuals than conventional resistance training, which s suggests that eccentric training is may be more beneficial for older individuals to improve overall physical function.
Abstract
PURPOSE: Reduced muscular strength is a key player in loss of physical function and quality of life in older adults. It has been reported that eccentric training has positive effects on the preservation of eccentric strength, produces less delayed onset muscle soreness, and has a lower metabolic cost for older individuals. Therefore, the present study investigated the effects of eccentric-based training on skeletal muscle strength and physical function in older adults. METHODS: Sixteen healthy older subjects (over the age of 65) participated either in eccentric training group (ETG, n=8) or in conventional resistance training group (CTG, n=8) twice a week for eight weeks. The ETG group performed motorized eccentric training, and the CTG group performed a leg press using air pressure. Physical function and muscular strength assessments were performed before and after 8 weeks. The primary outcomes for physical function included gait speed, stair climbing, and the chair stand test, and the secondary outcomes included muscle strength and power. RESULTS: The ETG group demonstrated significant improvements in physical function (gait speed and stair climbing) and muscle strength (isokinetic strength and power in knee tests) (p<0.05) compared to the CTG group after 8 weeks. There were no significant differences for chair stand test (p>0.05) after 8 weeks. CONCLUSIONS: Motorized eccentric-based training was more effective in improving muscle strength and physical function in aged individuals than conventional resistance training, which s suggests that eccentric training is may be more beneficial for older individuals to improve overall physical function.
참고문헌 (39)
- Trombetti A, "Age-associated declines in muscle mass, strength, power, and physical performance : impact on fear of falling and quality of life", Osteoporos Int, 27(2), pp.463~471 (2016)
- Doherty TJ, "Invited review : Aging and sarcopenia", J Appl Physiol (1985), 95(4), pp.1717~1727 (2003)
- Frontera WR, "Muscle fiber size and function in elderly humans : a longitudinal study", J Appl Physiol(1985), 105(2), pp.637~642 (2008)
- Krivickas LS, "Sex differences in single muscle fiber power in older adults", Med Sci Sports Exerc, 38(1), pp.57~63 (2006)
- 임재영, "Therapeutic potential of eccentric exercises for age-related muscle atrophy", Integrative Medicine Research, 5(3), pp.176~181 (2016), 한국한의학연구원[DOI]
- Shafiee G, "Prevalence of sarcopenia in the world : a systematic review and meta-analysis of general population studies", J Diabetes Metab Disord, 16, pp.21~ (2017)
- Yoshiko A, "Effects of 10-week walking and walking with home-based resistance training on muscle quality, muscle size, and physical functional tests in healthy older individuals", Eur Rev Aging Phys Act, 15, pp.13~ (2018)
- Mangione KK, "Cochrane review : Improving physical function and performance with progressive resistance strength training in older adults", Phys Ther, 90(12), pp.1711~1715 (2010)
- Alcazar J, "The sit-to-stand muscle power test : An easy, inexpensive and portable procedure to assess muscle power in older people", Exp Gerontol, 112, pp.38~43 (2018)
- Abdel-Aziem AA, "Isokinetic peak torque and flexibility changes of the hamstring muscles after eccentric training : Trained versus untrained subjects", Acta Orthop Traumatol Turc, 52(4), pp.308~314 (2018)
- Abderrahman AB, "Effects of recovery mode during high intensity interval training on glucoregulatory hormones and glucose metabolism in response to maximal exercise", J Athl Enhanc, 7(3) (2018)
- Taylor JA, "Hybrid functional electrical stimulation exercise training alters the relationship between spinal cord injury level and aerobic capacity", Arch Phys Med Rehabil, 95(11), pp.2172~2179 (2014)
- Kalyani RR, "Age-related and disease-related muscle loss : the effect of diabetes, obesity, and other diseases", Lancet Diabetes Endocrinol, 2(10), pp.819~829 (2014)
- Roig M, "Preservation of eccentric strength in older adults : Evidence, mechanisms and implications for training and rehabilitation", Exp Gerontol, 45(6), pp.400~409 (2010)
- Enoka RM, "Eccentric contractions require unique activation strategies by the nervous system", J Appl Physiol(1985), 81(6), pp.2339~2346 (1996)
- Tesch PA, "Force and EMG signal patterns during repeated bouts of concentric or eccentric muscle actions", Acta Physiol Scand, 138(3), pp.263~271 (1990)
- Lollo PC, "Differential response of heat shock proteins to uphill and downhill exercise in heart, skeletal muscle, lung and kidney tissues", J Sports Sci Med, 12(3), pp.461~466 (2013)
- Lavender AP, "Comparison between old and young men for changes in makers of muscle damage following voluntary eccentric exercise of the elbow flexors", Appl Physiol Nutr Metab, 31(3), pp.218~225 (2006)
- Raj IS, "Effects of eccentrically biased versus conventional weight training in older adults", Med Sci Sports Exerc, 44(6), pp.1167~1176 (2012)
- Dias CP, "Effects of eccentric-focused and conventional resistance training on strength and functional capacity of older adults", Age (Dordr), 37(5), pp.99~ (2015)
- Altman DG, "Statistics notes. Treatment allocation in controlled trials: why randomise?", BMJ, 318(7192), pp.1209~ (1999)
- Ibrahim N, "The health-related quality of life among pre-diabetics and its association with body mass index and physical activity in a semi-urban community in Malaysia--a cross sectional study", BMC Public Health, 14, pp.298~ (2014)
- LaStayo P, "Eccentric versus traditional resistance exercise for older adult fallers in the community : a randomized trial within a multi-component fall reduction program", BMC Geriatr, 17(1), pp.149~ (2017)
- Gluchowski A, "Chronic eccentric exercise and the older adult", Sports Med, 45(10), pp.1413~1430 (2015)
- Vaczi M, "Mechanical, hormonal, and hypertrophic adaptations to 10 weeks of eccentric and stretch-shortening cycle exercise training in old males", Exp Gerontol, 58, pp.69~77 (2014)
- Leone N, "Abdominal obesity and late-onset asthma : cross-sectional and longitudinal results : the 3C study", Obesity(Silver Spring), 20(3), pp.628~635 (2012)
- Gault ML, "Aging, functional capacity and eccentric exercise training", Aging Dis, 4(6), pp.351~363 (2013)
- Chen TC, "Superior effects of eccentric to concentric knee extensor resistance training on physical fitness, insulin sensitivity and lipid profiles of elderly men", Front Physiol, 8, pp.209~ (2017)
- Symons TB, "Effects of maximal isometric and isokinetic resistance training on strength and functional mobility in older adults", J Gerontol A Biol Sci Med Sci, 60(6), pp.777~781 (2005)
- Gault ML, "Functional mobility of older adults after concentric and eccentric endurance exercise", Eur J Appl Physiol, 112(11), pp.3699~3707 (2012)
- Cadore EL, "Effects of different exercise interventions on risk of falls, gait ability, and balance in physically frail older adults : a systematic review", Rejuvenation Res, 16(2), pp.105~114 (2013)
- Hakkinen K, "Serum hormones and strength development during strength training in middle-aged and elderly males and females", Acta Physiol Scand, 150(2), pp.211~219 (1994)
- Pinto RS, "Shortterm strength training improves muscle quality and functional capacity of elderly women", Age(Dordr), 36(1), pp.365~372 (2014)
- Rice DA, "Experimental knee pain impairs submaximal force steadiness in isometric, eccentric, and concentric muscle actions", Arthritis Res Ther, 17, pp.259~ (2015)
- Hanson ED, "Effects of strength training on physical function : influence of power, strength, and body composition", J Strength Cond Res, 23(9), pp.2627~2637 (2009)
- Peiffer JJ, "Strength and functional characteristics of men and women 65 years and older", Rejuvenation Res, 13(1), pp.75~82 (2010)
- Tiedemann A, "The comparative ability of eight functional mobility tests for predicting falls in community-dwelling older people", Age Ageing, 37(4), pp.430~435 (2008)
- Roig M, "The effects of eccentric versus concentric resistance training on muscle strength and mass in healthy adults : a systematic review with meta-analysis", Br J Sports Med, 43(8), pp.556~558 (2009)
- Cadore EL, "Neuromuscular adaptations to concurrent training in the elderly : effects of intrasession exercise sequence", Age(Dordr), 35(3), pp.891~903 (2013)