Power Training Versus Strength Training in the Elderly

NCT ID: NCT02852668

Last Updated: 2016-08-02

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 30 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2011-06-30
• Study Completion Date: 2012-01-31

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.

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.

Conditions

Healthy

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: SINGLE

Study Groups

Power Training Group

Physical exercises. Strength training performed quickly

Group Type: EXPERIMENTAL

Power Training

Intervention Type: OTHER

This experimental groups underwent an intervention period of power training

Strength Training Group

Physical exercises. Strength training performed in moderate speed

Group Type: EXPERIMENTAL

Strength Training

Intervention Type: OTHER

This experimental groups underwent an intervention period of strength training

Control Group

This group maintained the same physical activity level during the intervention period.

Group Type: NO_INTERVENTION

No interventions assigned to this group

Interventions

Power Training

This experimental groups underwent an intervention period of power training

Intervention Type: OTHER

Strength Training

This experimental groups underwent an intervention period of strength training

Intervention Type: OTHER

Eligibility 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

• Minimum Eligible Age: 65 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: Yes

Sponsors

University of Sao Paulo

OTHER

Sponsor Role: lead

Responsible Party

João Pedro Pinho

Principal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Alberto C Amadio, PhD

Role: STUDY_DIRECTOR

University of Sao Paulo

Other Identifiers

PowerElderly

Identifier Type: -

Identifier Source: org_study_id