Physical training device

Abstract

A physical training device for emulating oxygen condition at different altitudes during a physical activity is presented, the device being configured to be carried by a user and comprising a chamber through which the user breathes in and out, the chamber comprises a patterned airway configured to control parameters of air breathed in and out by the user.

1 . A training device configured to be carried by a user for emulating oxygen condition at different altitudes during a physical activity, the device comprising a chamber through which the user breathes in and out, said chamber comprises a patterned airway configured to control parameters of air breathed in and out by the user. 
     
     
         2 . The device of  claim 1 , wherein said chamber has a prism-like shape having proximal and distal bases comprising, respectively, first and second air windows, each of said first and second air windows being configured to allow flow of air therethrough in both directions, said patterned airway comprising said first and second air windows and extending from said proximal base to said distal base. 
     
     
         3 . The device of  claim 2 , wherein said first and second air windows of the proximal and distal bases have the same or different geometries. 
     
     
         4 . The device of  claim 2 , wherein at least one of the first and second air windows has a pattern comprising spaced-apart air-permeable regions through which air flows. 
     
     
         5 . The device of  claim 4 , wherein said air-permeable regions comprise at least one perforation. 
     
     
         6 . The device of  claim 4 , wherein said first and second air windows have different patterns. 
     
     
         7 . The device of  claim 6 , wherein the pattern in said first air window of the proximal base is configured to be more restrictive to flow of air than the pattern in said second air window of the distal base. 
     
     
         8 . The device of  claim 4 , wherein the pattern is characterized by at least one of the following: a number of said air-permeable regions, geometry of said air-permeable regions and spaces between said air-permeable regions. 
     
     
         9 . The device of  claim 2 , wherein at least one of said proximal and distal bases is replaceable, thereby enabling replacement of at least the first or second air windows resulting in a different patterned airway and controlling the parameters of air breathed in and out by the user. 
     
     
         10 . The device of  claim 2 , wherein said chamber of prism-like shape is a cylinder and said proximal and distal bases are circular or ovoid. 
     
     
         11 . The device of  claim 2 , wherein a total surface area of each of said first and second air windows ranges from 78.5 mm 2  to 430 mm 2 . 
     
     
         12 . The device of  claim 1 , being configured to emulate the oxygen condition at different altitudes between 500 m and 4000 m above an altitude at which the user stands. 
     
     
         13 . The device of  claim 1 , comprising a mask by which the device is worn by the user. 
     
     
         14 . The device of  claim 13 , wherein said mask comprises an opening for accommodating said chamber, such that said chamber is aligned with the mouth or nose of the user. 
     
     
         15 . The device of  claim 14 , wherein said mask has an edge that follows the contours of a user's face and provides hermitic sealing around the user's mouth and nose when in use. 
     
     
         16 . The device of  claim 1 , wherein said chamber is configured to receive therein a filter configured to purify the air breathed in by the user. 
     
     
         17 . A kit for use by an individual for emulating oxygen condition at different altitudes, comprising:
 a mask to be worn by a user, comprising an edge that follows contour of the user's face for providing a hermitic edge seal for the user's mouth and nose, the mask comprises an opening aligned with the user's mouth and nose;   a prism-like chamber configured to be inserted hermitically inside said opening, said chamber comprising a patterned airway configured to control parameters of air breathed in and out by the user, said patterned airway comprises first and second patterned air windows formed in, respectively, proximal and distal bases of said chamber, at least one of said proximal and distal bases being replaceable; and   a plurality of replacement bases each comprising a different patterned air window for controlling the parameters of air and emulating said oxygen condition at different altitudes.