Effects of Rosin Powder Application on the Frictional Behavior Between a Finger Pad and Baseball.
Effects of Rosin Powder Application on the Frictional Behavior Between a Finger Pad and Baseball.
复制标题
松香粉对手指垫和棒球之间摩擦行为的影响。
DOI：
10.3389/fspor.2020.00030
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发表时间：
2020
影响因子：
2.7
通讯作者：
Nasu D
中科院分区：
文献类型：
--
作者：
Yamaguchi T;Yamakura N;Murata S;Fukuda T;Nasu D
松香粉是由碳酸镁粉末和松香树脂组成的，常用作棒球投球的抓地力增强剂。然而，松香粉末对棒球-人手指界面摩擦的影响仍不清楚。本研究旨在探讨松香粉对棒球与手指间滑动摩擦系数的影响。10名年轻的成年男性参与了这项研究，他们被要求将他们占主导地位的手的食指滑过粘附在力传感器上的棒球的皮革皮肤，这不是真实的棒球投球情况。我们的研究结果表明，松香粉的应用稳定的摩擦在干燥和潮湿的条件下，也就是说，有较少的依赖摩擦系数的法向力和摩擦系数的个体之间的变化。对于大多数参与者来说，在干燥条件下，在手指垫-皮革片界面处存在松香粉末并不一定会增加摩擦系数。然而，在潮湿的条件下，松香粉末的应用程序增加了摩擦系数相比，非粉末的条件下，在大的法向力的条件下，表明松香粉末作为一个抓地力增强剂的功效。
Rosin powder, which is composed of magnesium carbonate powder and pine resin, is often used as a grip-enhancing agent in baseball pitching. However, the effect of rosin powder on friction at the baseball–human finger interface remains unclear. This study aimed to investigate the effect of rosin powder on the friction coefficient between a baseball and a finger using sliding friction tests. Ten young adult males participated in this study who were asked to slide the index finger of their dominant hand over the leather skin of a baseball adhered to the force sensor, which was not a real baseball pitching situation. Our findings suggest that rosin powder application stabilizes friction under both dry and wet conditions; that is there was less dependence of the friction coefficient on the normal force and less variation in the friction coefficient among individuals. For most participants, the friction coefficient was not necessarily increased by the presence of rosin powder at the finger pad–leather sheet interface under dry conditions. However, under wet conditions, rosin powder application increased the friction coefficient compared with the non-powdered condition in the large normal force condition, indicating the efficacy of rosin powder as a grip-enhancing agent.
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影响因子：
3.2
作者：
Pasumarty, Subrahmanyam M.;Johnson, Simon A.;Adams, Michael J.
通讯作者：
Adams, Michael J.
影响因子：
3.9
作者：
Andre, T.;Levesque, V.;Thonnard, J. -L.
通讯作者：
Thonnard, J. -L.
DOI：
10.1299/jamdsm.2015jamdsm0026
发表时间：
2015-01-01
影响因子：
0.9
作者：
Yamaguchi, Takeshi;Hokkirigawa, Kazuo
通讯作者：
Hokkirigawa, Kazuo
影响因子：
2.2
作者：
Matsuo, Tomoyuki;Jinji, Tsutomu;Kumagawa, Daisuke
通讯作者：
Kumagawa, Daisuke
影响因子：
5
作者：
Derler, S.;Schrade, U.;Gerhardt, L.-C.
通讯作者：
Gerhardt, L.-C.