Clinical trial NCT02253615: Effects of Resistance Training in Untrained Older Adults
Official title: Effects of 16 Weeks of Resistance Training Using Elastic Resistance or Machines on Muscle Mass, Strength and Postural Control in Untrained Older Adults.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Aging
Older Adults
Keywords: Aging
Resistance training
Muscle strength
Functional performance
Postural balance
Lead sponsor: University of Brasilia
Sponsor class: OTHER
First posted: 2014-10-01
Enrollment: 68
Sex: ALL
Minimum age (years): 55
Maximum age (years): 85
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The latest randomized controlled trials and systematic reviews of resistance training performed by older adults reported that the systematic use of exercise in machines improves muscle strength and power, functional abilities, body mass and body balance. However, the effect of resistance training with elastic tubes exercises have not been studied in all the variables described above. The objective of this study is to analyze the effects of elastic tubes exercises on muscle mass, muscle strength, functional performance and postural control in elderly untrained.

Detailed description: This is a randomized clinical trial study (RCT) with 2 parallel arms. The subjects will be divided in 2 groups with a randomized block technique: Elastic Training Group (ETG) and Machine Training Group (MTG). The subjects will be submitted to a two-week familiarization period and then a sixteen-week of strength training program will be performed twice a week.

This regimen of resistance training in both groups will consist of four exercises for lower limbs and four exercises for upper limbs which will be alternately performed with a one-minute interval between them during familiarization and training periods. Lower limb exercises will consist of: hip extension and abduction, and knee flexion and extension. Upper limb exercises will consist of: bench press, rowing, triceps and high pulley exercise.

Eligibility criteria: Inclusion Criteria:

* Convenience sample of forty healthy older adults with a minimum of 55 years of age.

Exclusion Criteria:

* subjects suffering from orthopedic, neurologic, rheumatologic, metabolic or heart conditions, and uncontrolled arterial hypertension. Additional exclusion criteria included undergoing estrogen therapy, use of cardiac pacemaker, knee or hip arthroplasty, the presence of fragments from previous osteosynthesis; orthopedic surgery, fractures, muscle injury or the practice of resistance training within the last 6 months

Primary outcomes:
measure: Change in Body Mass
timeFrame: Change from baseline in body mass at 16 weeks.
measure: Change in Muscle Strength
timeFrame: Change from baseline in muscle strength at 16 weeks.
measure: Change in Postural Balance
timeFrame: Change from baseline in postural balance at 16 weeks.
Secondary outcomes:
measure: Change in Functional performance
timeFrame: Before and after 16 weeks of resistance training
Other outcomes:
Locations:
city: Brasilia
country: Brazil
facility: University of Brasilia
state: Distrito Federal
city: Brasília
country: Brazil
facility: University of Brasilia
state: Distrito Federal
Study officials:
References:
citation: Lorenz DS. Variable resistance training using elastic bands to enhance lower extremity strengthening. Int J Sports Phys Ther. 2014 May;9(3):410-4.
citation: Joy JM, Lowery RP, Oliveira de Souza E, Wilson JM. Elastic Bands as a Component of Periodized Resistance Training. J Strength Cond Res. 2016 Aug;30(8):2100-6. doi: 10.1519/JSC.0b013e3182986bef.
citation: Martins WR, de Oliveira RJ, Carvalho RS, de Oliveira Damasceno V, da Silva VZ, Silva MS. Elastic resistance training to increase muscle strength in elderly: a systematic review with meta-analysis. Arch Gerontol Geriatr. 2013 Jul-Aug;57(1):8-15. doi: 10.1016/j.archger.2013.03.002. Epub 2013 Apr 4.
citation: American College of Sports Medicine; Chodzko-Zajko WJ, Proctor DN, Fiatarone Singh MA, Minson CT, Nigg CR, Salem GJ, Skinner JS. American College of Sports Medicine position stand. Exercise and physical activity for older adults. Med Sci Sports Exerc. 2009 Jul;41(7):1510-30. doi: 10.1249/MSS.0b013e3181a0c95c.
citation: Colado JC, Garcia-Masso X, Pellicer M, Alakhdar Y, Benavent J, Cabeza-Ruiz R. A comparison of elastic tubing and isotonic resistance exercises. Int J Sports Med. 2010 Nov;31(11):810-7. doi: 10.1055/s-0030-1262808. Epub 2010 Aug 11.
citation: Martins WR, Safons MP, Bottaro M, Blasczyk JC, Diniz LR, Fonseca RM, Bonini-Rocha AC, de Oliveira RJ. Effects of short term elastic resistance training on muscle mass and strength in untrained older adults: a randomized clinical trial. BMC Geriatr. 2015 Aug 12;15:99. doi: 10.1186/s12877-015-0101-5.