Effect of Volume Training on Back Endurance

NCT02326792 | Completed DMC

• 1 other identifier: Unopar-Rubens-2
• Study Type: interventional
• Target: 42
• Locations: 0 countries
• Sites: N/A

Brief Summary

The fatigue of the trunk extensor muscles is often reported in people with the chronic low back pain (LBP). Evidences have showed that the strengthening muscular by the training of the lumbar spinal muscles is efficient to decrease the pain and disability symptoms of patients with the chronic LBP. Also, some studies have reported improve of the strength and endurance of the back muscles from of this type of training muscular. However, the exercise prescription for the trunk extensor muscles during the training is still not clear in the literature. In fact, no study has showed any differences between one and three sets of specific lumbar exercise with regard to better prescription of training in healthy subjects (e.g; preventive action) as well as in LBP subjects (e.g; intervention action).

Conditions

Back Pain

Keywords

Exercise; Training; Low back Pain; Physical Therapy

Outcome Measures

Primary Outcomes (1)

• Isometric endurance (Classic Sorensen test)

  To determine the improve of endurance muscular, the time-limit in seconds will be computed from modified Sorensen test executed on a roman chair. To measure the fatigue muscular, the participant would hold the unsupported trunk horizontally (Sorensen test).

  10 weeks

Secondary Outcomes (1)

• Number of repetitions

  10 weeks

Other Outcomes (2)

• EMG fatigue index

  10 weeks

• Isometric strength (maximal voluntary contractio: MVC)

  10 weeks

Study Arms (3)

G1-Three sets of exercise

EXPERIMENTAL

G1 group - the participants will perform three sets of 15-20 repetitions of the trunk extensor exercise on a roman chair machine with the hips at 45 degrees relative to horizontal; performing trunk flexion-extension cycles for a total of 4 seconds (2 s concentric and 2 s eccentric contraction). The relative load for initial training will be placed at 20% back maximal voluntary contraction (MVC) and will be progressive during the training. The time session of training will be of 10 weeks.

Other: Exercise

G2-One set of exercise

EXPERIMENTAL

G2 group - the participants will perform only one set of 15-20 repetitions of the trunk extensor exercise on a roman chair machine with the hips at 45 degrees relative to horizontal; performing trunk flexion-extension cycles for a total of 4 seconds (2 s concentric and 2 s eccentric contraction). The relative load for initial training will be placed at 20% back maximal voluntary contraction (MVC) and will be progressive during the training. The time session of training will be of 10 weeks.

Other: Exercise

G3-Control

NO INTERVENTION

G3 group - the participants will be the control group, which not participating of exercise program in any time during the study.

Interventions

Exercise OTHER

The groups will perform the trunk extensor exercise on a roman chair by 2 x week, for a total of 10 weeks of training (20 sessions). The load will be progressive and tested to each 14 days with regard to the number of repetition reached by the participant. The exercise is safe and will be supervised by a health sport professional.

G1-Three sets of exercise; G2-One set of exercise

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Healthy subjects only and not using ergogenic substances and anabolic steroids, and drugs use for increasing ot the muscular performance.
• All subjects need to be voluntaries.

You may not qualify if:

• Any contraindication to physical exercise performance in accord with the American College of Sports Medicine Standard Position;
• Several spinal pathologies (fractures, tumors, and inflammation), nerve root disorders (disc herniation and ,spondylolisthesis with neurological compromise, spinal stenosis, and others), several cardiorespiratory diseases, previous back surgery or pregnancy;
• Mental or physical illnesses problems that interfere with the exercise;
• Any surgery in the spine in the last 6 months;
• Upper body mass (trunk, upper limbs and head) greater than 50% of the total strength of the trunk extensor muscles from first day the data collection.
• Subjects enrolled in any exercise program outside of the study.

Sponsors & Collaborators

• Universidade Norte do Paraná: lead
• Universidade Estadual de Londrina: collaborator

Related Publications (3)

• da Silva RA, Lariviere C, Arsenault AB, Nadeau S, Plamondon A. Pelvic stabilization and semisitting position increase the specificity of back exercises. Med Sci Sports Exerc. 2009 Feb;41(2):435-43. doi: 10.1249/MSS.0b013e318188446a.

  PMID: 19127180 BACKGROUND

• Lariviere C, Da Silva RA, Arsenault AB, Nadeau S, Plamondon A, Vadeboncoeur R. Specificity of a back muscle roman chair exercise in healthy and back pain subjects. Med Sci Sports Exerc. 2011 Jan;43(1):157-64. doi: 10.1249/MSS.0b013e3181e96388.

  PMID: 20508534 BACKGROUND

• Verna JL, Mayer JM, Mooney V, Pierra EA, Robertson VL, Graves JE. Back extension endurance and strength: the effect of variable-angle roman chair exercise training. Spine (Phila Pa 1976). 2002 Aug 15;27(16):1772-7. doi: 10.1097/00007632-200208150-00016.

  PMID: 12195070 BACKGROUND

MeSH Terms

Conditions

Back Pain; Motor Activity; Low Back Pain

Interventions

Exercise

Condition Hierarchy (Ancestors)

Pain; Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Behavior

Intervention Hierarchy (Ancestors)

Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Rubens A DA SILVA, PhD

  Universidade Norte do Paraná

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Titular professor

Study Record Dates

• First Submitted: December 17, 2014
• First Posted: December 30, 2014
• Study Start: January 1, 2015
• Primary Completion: August 1, 2015
• Study Completion: September 1, 2015
• Last Updated: December 2, 2015

Record last verified: 2015-11