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Trial record 83 of 10611 for:    strength

Power Training Versus Strength Training in the Elderly

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ClinicalTrials.gov Identifier: NCT02852668
Recruitment Status : Completed
First Posted : August 2, 2016
Last Update Posted : August 2, 2016
Sponsor:
Information provided by (Responsible Party):
João Pedro Pinho, University of Sao Paulo

Brief Summary:
The inexorable decline in motor skills during aging provides the investigators with an elderly population with various functional limitations. Among these, the ability to walk, being associated with the risk of falling has been studied by several authors. The adoption of strength and power training as an intervention strategy to reduce the negative effects arising from the physiological or pathological process of aging has been widely discussed in these studies. However, the effects of these interventions on biomechanical gait indicators have not been fully debated yet. Therefore, this study aimed to compare the effects of these two training protocols on functional capacities and biomechanical gait parameters of elderly women.

Condition or disease Intervention/treatment Phase
Healthy Other: Power Training Other: Strength Training Not Applicable

Detailed Description:
Three female groups, homogenized by age, body mass index and physical activity level, were formed: the control group (GC: n=8, 69±4 years old), the strength training group (GF: n=6, 67±4 years old) and the power training group (GP, n=7, 68±4 years old). No extra activity was induced to GC's routine. Meanwhile, GF and GP underwent 12 weeks of strength and power training, respectively, with three weekly sessions. While GF performed the exercises with moderate speed (70-90% of 1RM), the GP executed them in fast speed (40-60% of 1RM). A kinematic and electromyographic gait evaluation, as well as balance and functional capacity evaluations, were conducted prior and after the intervention period.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 30 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Prevention
Official Title: Biomechanical Gait Indicators of Elderly Women in Response to Strength Training or Power Training
Study Start Date : June 2011
Actual Primary Completion Date : December 2011
Actual Study Completion Date : January 2012

Arm Intervention/treatment
Experimental: Power Training Group
Physical exercises. Strength training performed quickly
Other: Power Training
This experimental groups underwent an intervention period of power training

Experimental: Strength Training Group
Physical exercises. Strength training performed in moderate speed
Other: Strength Training
This experimental groups underwent an intervention period of strength training

No Intervention: Control Group
This group maintained the same physical activity level during the intervention period.



Primary Outcome Measures :
  1. Gait kinematics [ Time Frame: through study completion, an average of 6 months ]
    toe clearance: minimum vertical distance of the forefoot and the ground during swing phase

  2. Timed up and go test [ Time Frame: through study completion, an average of 6 months ]
    time needed to get up from a seated position walk 3 meters and walk back to the chair

  3. Muscle power [ Time Frame: through study completion, an average of 6 months ]
    knee extensors muscle power

  4. electromyography gait analysis [ Time Frame: through study completion, an average of 6 months ]
    Knee extensors and flexors muscles co-contraction during the gait cycle



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Ages Eligible for Study:   65 Years to 75 Years   (Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • sedentary women with no physical mobility limitations

Exclusion Criteria:

  • attending less than 75% of the intervention sessions and not attending the final evaluation

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02852668


Sponsors and Collaborators
University of Sao Paulo
Investigators
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Study Director: Alberto C Amadio, PhD University of São Paulo

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Responsible Party: João Pedro Pinho, Principal Investigator, University of Sao Paulo
ClinicalTrials.gov Identifier: NCT02852668     History of Changes
Other Study ID Numbers: PowerElderly
First Posted: August 2, 2016    Key Record Dates
Last Update Posted: August 2, 2016
Last Verified: July 2016
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Plan Description: Only group data will be available. These are to be published in scientific papers.
Keywords provided by João Pedro Pinho, University of Sao Paulo:
elderly
strength training
power training
functional capacity
gait biomechanics