Biomechanical Gait Indicators of Elderly Women in Response to Strength Training or Power Training
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Healthy
- Sponsor
- University of Sao Paulo
- Enrollment
- 30
- Primary Endpoint
- Muscle power
- Status
- Completed
- Last Updated
- 9 years ago
Overview
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.
Investigators
João Pedro Pinho
Principal Investigator
University of Sao Paulo
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
Outcomes
Primary Outcomes
Muscle power
Time Frame: through study completion, an average of 6 months
knee extensors muscle power
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
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
electromyography gait analysis
Time Frame: through study completion, an average of 6 months
Knee extensors and flexors muscles co-contraction during the gait cycle