Natick's Footwear Database is a computerized system for the management of literature regarding lower extremity health and comfort as they relate to footwear. Six major topics define the focus and the contents of the database. These are: (1) anatomy; (2) biomechanics; (3) environment; (4) footwear; (5) injury; and (6) physiology. System capabilities include: text and keyword searches of the literature in the database; presentation ont he computer screen of the ...
Natick's Footwear Database is a computerized system for the management of literature regarding lower extremity health and comfort as they relate to footwear. Six major topics define the focus and the contents of the database. These are: (1) anatomy; (2) biomechanics; (3) environment; (4) footwear; (5) injury; and (6) physiology. System capabilities include: text and keyword searches of the literature in the database; presentation on the computer screen of the ...
Intra-abdominal pressure (IAP) has been widely hypothesized to reduce potentially injurious compressive forces on spinal discs during lifting. To investigate the effects of a standard lifting belt on IAP and lifting mechanics, IAP and vertical ground reaction force (GRF) were monitored by computer using a catheter transducer and force platform while nine subjects aged 28.2 + or - 6.6 yr dead-lifted a barbell both with and without a lifting belt ...
Intra-abdominal pressure (IAP) has been widely hypothesized to reduce potentially injurious compressive forces on spinal discs during lifting. To investigate the effects of a standard lifting belt on IAP and lifting mechanics, IAP and vertical ground reaction force (GRF) were monitored by computer using a catheter transducer and force plate while 9 subjects aged 28.2 +or- 6.6 yrs. dead-lifted a barbell both with and without a lifting belt at 90% ...
A new pressure sensitive resistive film was used to construct a pair of force sensing pedals designed to fit a Universal leg press machine. The sensors were calibrated by recording their output voltages on a microcomputer via an A/D converter sampling at 100 Hz as weight was placed on each pedal's top surface. Third order polynomial equations were fit to the data and resulted in correlation coefficients between actual and ...
The Lewis formula and nomogram, published in widely distributed textbooks, are used to calculate power output from vertical jump-and-reach distance and body weight. Despite the fact that the method has never been supported by refereed journal publication and the texts never revealed whether peak or average power was being estimated, the test has become increasingly used by physical educators, coaches and researchers. Theoretical analysis has raised questions about the the ...
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