Back support device

A back support device for supporting a lower back of a user, comprising:

• an elastic strap;
• a first clasping element attached to a first end of the elastic strap;
• a first buckle element secured to a second end of the elastic strap and slidably disposed over a medial portion of the elastic strap;
• a second buckle element slidably disposed over the elastic strap and configured to releasably engage the first clasping element to form a continuous loop;
• and
• a third buckle element slidably disposed over the elastic strap between the first buckle element and the second buckle element;
• wherein a plurality of segments of the elastic strap is defined by the first buckle element, the second buckle element, and the third buckle element, and the plurality of segments circumferentially overlap between the first buckle element and the second buckle element.

A method of supporting a lower back of a user, comprising:

• positioning an elastic strap around a torso of the user, the elastic strap including a first end and a second end, the second end being secured to a first buckle element slidably disposed on a medial portion of the elastic strap;
• releasably securing a first clasping element attached to the first end of the elastic strap to a second buckle element slidably disposed over the elastic strap to form a continuous loop around the torso of the user in a first position;
• moving the continuous loop from the first position to a second position in which the continuous loop extends around the lower back of the user and at least one knee of the user in a seated position such that the continuous loop exerts a radially inward force against the lower back of the user;
• sliding the first buckle element along the medial portion of the elastic strap to change the radially inward force applied to the lower back of the user in the second position, the first buckle element being disposed in a first buckle position when the radially inward force is at a desired level;
• and
• moving the continuous loop from the second position to the first position without moving the first buckle element from the first buckle position, wherein the elastic strap elastically contracts such that a perimeter length of the continuous loop in the first position that is less than the perimeter length of the continuous loop in the second position.

A method of supporting a lower back of a user, comprising:

• positioning an elastic strap around a torso of the user, the elastic strap including a first end and a second end, the second end being secured to a buckle element slidably disposed on a medial portion of the elastic strap;
• releasably securing a first clasping element attached to the first end of the elastic strap to a second clasping element slidably disposed over the elastic strap to form a continuous loop around the torso of the user;
• sliding the buckle element along the medial portion of the elastic strap to secure the continuous loop around the torso of the user such that the continuous loop holds itself in place on the torso of the user in a first position, wherein the continuous loop has a first perimeter length in the first position;
• and
• moving the continuous loop from the first position to a second position in which the continuous loop extends around the lower back of the user and at least one knee of the user in a seated position, wherein the elastic strap elastically elongates from the first position to the second position such that in the second position the continuous loop has a second perimeter length greater than the first perimeter length.

A back support device for supporting a lower back of a user, comprising:

• an elongate piece of elastic material;
• a first clasping element attached to a first end of the elongate piece of elastic material;
• a buckle element secured to a second end of the elongate piece of elastic material;
• and
• a second clasping element slidably disposed over the elongate piece of elastic material and configured to releasably engage the first clasping element;
• wherein a medial portion of the elongate piece of elastic material passes through the buckle element such that the buckle element is disposed at a buckle position along the medial portion;
• wherein the second clasping element is slidably disposed over the elongate piece of elastic material between the second end of the elongate piece of elastic material and the buckle position;
• wherein the back support device is movable, without changing the buckle position, between a first position in which the back support device forms a continuous loop extending around and elastically constricting upon a torso of the user and a second position in which the continuous loop extends around the lower back of the user and at least one knee of the user in a seated position.