| 摘要 |
<p>A sailboard with an upstanding mast and a wishbone boom surrounding the mast and extending a sail connected to the mast, is provided with an elongated flexible element secured at its ends one on each side of the boom. The element is vertically swingable about its ends on the boom and is flexible and padded and is urged to raised position by an elastic member that interconnects the element to the mast. The flexible element is of a size suitable to receive within it the user's body so that the user can lean back on the element and thus apply his weight to the boom without the need for using his hands. This relieves strain on the arms and shoulders of the user.</p> |
