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Performance Analysis of a Bicycle Mo...

Knight, Jennifer.

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Performance Analysis of a Bicycle Motocross Racing Jump Approach.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Performance Analysis of a Bicycle Motocross Racing Jump Approach./
作者:	Knight, Jennifer.
面頁冊數:	80 p.
附註:	Source: Masters Abstracts International, Volume: 55-01.
Contained By:	Masters Abstracts International55-01(E).
標題:	Kinesiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1596680
ISBN:	9781321985443

Performance Analysis of a Bicycle Motocross Racing Jump Approach.
Knight, Jennifer.

Performance Analysis of a Bicycle Motocross Racing Jump Approach. - 80 p.

Source: Masters Abstracts International, Volume: 55-01.

Thesis (M.A.)--Indiana State University, 2015.

This study involved a performance analysis of three different jump approach techniques used in the sport of bicycle motocross (BMX) racing. The study examined five expert class male BMX racers as they performed the rolling, manualing, and jump approach over a double and step-up jump. The subjects were filmed using a Sony HDR-CX160 video camera, which was later used to provide video images. The video images were digitized using APAS software. The data collected with APAS software was broken down into five different variables that would be used to view each approach technique over the two jumps. The variables observed were: duration, vertical displacement for center of mass, horizontal velocity during the take-off phase, horizontal velocity during the landing phase, and the resultant velocity at final phase. The collected data was analyzed using the statistical software package SPSS. A one-way ANOVA was performed on the variables. No significant differences were found between the approaches. Based on the variable results, the data suggested the manualing approach yielded a higher resultant velocity over the double jump, and the jumping approach yielded a higher resultant velocity over the step-up jump. Although the data was not statistically significant, a trend showed the manualing approach technique was the most efficient approach for a double and step-up jump. The conclusion was based off the center of mass displacement and how it contributes to rider safety. The lower the displacement the less likely the rider will lose control of the bicycle and wreck. This is especially true in a competition setting when other riders are present.

ISBN: 9781321985443Subjects--Topical Terms:

517627
Kinesiology.

Performance Analysis of a Bicycle Motocross Racing Jump Approach.
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502 $a Thesis (M.A.)--Indiana State University, 2015.
520 $a This study involved a performance analysis of three different jump approach techniques used in the sport of bicycle motocross (BMX) racing. The study examined five expert class male BMX racers as they performed the rolling, manualing, and jump approach over a double and step-up jump. The subjects were filmed using a Sony HDR-CX160 video camera, which was later used to provide video images. The video images were digitized using APAS software. The data collected with APAS software was broken down into five different variables that would be used to view each approach technique over the two jumps. The variables observed were: duration, vertical displacement for center of mass, horizontal velocity during the take-off phase, horizontal velocity during the landing phase, and the resultant velocity at final phase. The collected data was analyzed using the statistical software package SPSS. A one-way ANOVA was performed on the variables. No significant differences were found between the approaches. Based on the variable results, the data suggested the manualing approach yielded a higher resultant velocity over the double jump, and the jumping approach yielded a higher resultant velocity over the step-up jump. Although the data was not statistically significant, a trend showed the manualing approach technique was the most efficient approach for a double and step-up jump. The conclusion was based off the center of mass displacement and how it contributes to rider safety. The lower the displacement the less likely the rider will lose control of the bicycle and wreck. This is especially true in a competition setting when other riders are present.
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