Biomechanical Gait Indicators of Elderly Women in Response to Strength Training or Power Training
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 30
- 主要终点
- Muscle power
研究概览
简要总结
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.
详细描述
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 65 Years 至 75 Years（Older Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •sedentary women with no physical mobility limitations
排除标准
- •attending less than 75% of the intervention sessions and not attending the final evaluation
结局指标
主要结局
Muscle power
时间窗: through study completion, an average of 6 months
knee extensors muscle power
Gait kinematics
时间窗: 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
时间窗: 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
时间窗: through study completion, an average of 6 months
Knee extensors and flexors muscles co-contraction during the gait cycle
次要结局
未报告次要终点
研究者
João Pedro Pinho
Principal Investigator
University of Sao Paulo