Lift mechanics of downhill skiing and snowboarding

Article Abstract:

A study is conducted to develop a simplified mathematical model to describe the lift mechanics of downhill skiing and snowboarding, where the lift contributions due to both the transiently trapped air and the compressed solid phase are determined. A new theoretical framework for analyzing the lift mechanics and stability of skis and snowboards is developed that could have important applications in future ski and snowboard design.

Analysis, Porous materials, Permeability, Downhill skiing

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Effects of hiking downhill using trekking poles while carrying external loads

Article Abstract:

The effectiveness of pole use in hiking downhill while carrying different external loads was investigated. It was found that the use of hiking poles is effective in reducing pain and reducing the amount of potential damage of the lower extremity while hiking downhill with the addition of external load like wearing a backpack.

Physiological aspects, Hiking, Staffs (Sticks, canes, etc.), Walking sticks (Canes)

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Validity of a modified aerobic fitness test for adults with mental retardation

Article Abstract:

Research indicates that modifications to the Rockport Fitness Walking Test protocol for mentally retarded adults provides similar heart rates and end times and can be used to predict aerobic fitness. Results are based on a study of 10 men an 13 women with mental retardation using treadmill testing.

Statistical Data Included, Research, Physical fitness, Oxygen consumption, Oxygen consumption (Metabolism), Heart beat, Heart rate, Treadmill exercise tests, Mentally disabled persons

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