there is a substantial evidence that plyometric training significantly increases muscular strength and vertical jump. due to the vigorous nature of this type of training, however, there is a risk of incurring musculoskeletal injuries. therefore, conducting plyometric exercise programs in an aquatic environment might lead to significant improvements in vertical jump with possibly a lower risk of...

Hydraulic jump on adverse stilling basin is an unstable phenomenon which causes some complexities in controlling of the   jump. This paper considers the stability of free hydraulic jump on adverse stilling basins from a theoretical point of view. A minimum value of upstream Froude number is needed to produce the free hydraulic jump on adverse stilling basins which was presented by a theoretical...

Introduction Most of the army personnel in the New Territories (NTs) are Gurkhas. Each of the units is allowed a proportion of its Gurkha officers and men to live in married quarters with their families. Up to the rank of sergeant, families are only allowed to accompany the soldier, for a maximum of three years during his 15 years service. It is during these three years that most couples plan t...

83.2 Key Management Myths .................................................... 1070 Myth 1: A Key Qualifies as “Randomly Generated” If One or More Persons Create the Key Components from Their Imagination † Myth 2: An “Authorized” Person Can Create or Enter Cryptographic Keys without Compromising a Key † Myth 3: Requiring a Second Person to Supervise or Observe the Key Entry Process Is Dual Cont...

in a control structures, it is often preferred to minimize the gate width while utilizing the canal width in full for a stilling basin. therefore, to reach this, a gradually diverging stilling basin may be used. in this study, the effect of broad-crested sill on the expanding hydraulic jump in a rectangular channel was investigated. a total number of 79 tests were carried out for the range of i...

Background and Aims: The accurate mechanisms of ankle instability cannot be assessed in the absence of reliable knowledge about ground reaction force (GRF) variables. The purpose of this study was to evaluate the test-retest reliability of GRF variables during forward and lateral jump-landing in volleyball players with functional ankle instability (FAI). Methods: Eighteen professional volle...