Presentation Title

The Relationship Between Force and Velocity for Lower-Extremity Muscles: Preliminary Research

Presenter Information

Veneese BrownFollow

Faculty Mentor

Dr. Lan-yuen Guo, Dr. Jamie Snyder

Start Date

18-11-2017 11:00 AM

End Date

18-11-2017 11:15 AM

Location

9-277

Session

Bio Sciences 4

Type of Presentation

Oral Talk

Subject Area

health_nutrition_clinical_science

Abstract

Aging is an inevitable event that everyone experiences in their lifetime. Successful aging is the ability to independently perform simply daily tasks such as walking, climbing, or sitting and standing from a chair. Over time many people will begin to lose the ability to conduct these simple task, due to a loss in muscle strength and power in their lower-limb skeletal muscles (quadriceps and hamstrings). Many studies have shown that power training could reverse these effects, improving elders’ ability to conduct these tasks and more. In this preliminary study, we will use the Biodex Medical Systems 3 Pro, Inc (Shirley, NY, USA) knee extension, isometric and isokinetic protocols, in order to observe the force-velocity and power-velocity relationship. The Hill’s equation and power equation was used for data analysis. The results presented in this paper will be used for the creation of a novel personalize power training apparatus.

Summary of research results to be presented

The main finding in this preliminary study is that there is a significantly lower amount of both torque and power that is excreted from females, compared to males. Another significant finding is that our subjects displayed a high level of observed and expected torque and power compared to other studies. A few factors that could have caused this high data is age, physical fitness, gender, and sample size. Some subjects take part in heavy physical activities for more than 6 hours a week, while others in our study did no physical activities at all except walking. This means that there was a vast range of initial levels of power and force among the subjects. In regard to age, our young participants ranged from 19 to 24 years old; a smaller age range compared to most research. This could be the reason why their resulting force and power is lower than our results. Our experiment also contained a smaller sample size then most studies. However, when you compare Figure 3 with the results from Thom et. Al study (Figure 5), the curves share some similarities. Between the range of 40-50 N-M, the young participants from both studies excreted this force at approximately 5 rad/sec [4]. This shows that despite the many factors that could of altered our data, we were still able to achieve similar results as past studies.

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Nov 18th, 11:00 AM Nov 18th, 11:15 AM

The Relationship Between Force and Velocity for Lower-Extremity Muscles: Preliminary Research

9-277

Aging is an inevitable event that everyone experiences in their lifetime. Successful aging is the ability to independently perform simply daily tasks such as walking, climbing, or sitting and standing from a chair. Over time many people will begin to lose the ability to conduct these simple task, due to a loss in muscle strength and power in their lower-limb skeletal muscles (quadriceps and hamstrings). Many studies have shown that power training could reverse these effects, improving elders’ ability to conduct these tasks and more. In this preliminary study, we will use the Biodex Medical Systems 3 Pro, Inc (Shirley, NY, USA) knee extension, isometric and isokinetic protocols, in order to observe the force-velocity and power-velocity relationship. The Hill’s equation and power equation was used for data analysis. The results presented in this paper will be used for the creation of a novel personalize power training apparatus.