Research on the Effect of Backpack With Anti Gravity System Design on Relieving Users’ Perceived Exertion
Xi Yang
◽
Zhiguan Huang
◽
Pak-To Ng
◽
Wai-Fan Kwan
◽
Yuhe Li
1993 ◽
Vol 38
(1)
◽
pp. 101-102
William B. Askren
◽
Kenneth D. Korkan
◽
George W. Watts
John G. Kreifeldt
◽
Percy H. Hill
Walter R. Sullins
◽
Peter J. Soper