Athletic swing training device

An orthotic device comprising:

• a first support member having a first end formed of one or more first fingers;
• a second support member having a second end formed of one or more second fingers;
• a pivot joint centered about the point where the first end of the first support member and the second end of the second support member meet, the pivot joint formed by interleaving the one or more first fingers with the one or more second fingers;
• a connecting strap removably connected to the first support member and to the second support member;
• and
• one or more retention means for affixing the orthotic device to a user's arm, wherein:
• when the orthotic device is worn on the user's arm, the first support member is positioned on the user's upper arm, the second support member is positioned on the user's forearm, and the pivot joint is positioned at a lateral portion of the user's elbow, the arrangement of the one or more first fingers relative to the one or more second fingers in the pivot joint prevent the orthotic device from forming an angle of less than 90° between the first support member and the second support member, and
• the pivot joint is configured to allow the first support member and the second support member to freely rotate to any angle greater than 90° and less than 180°, as allowed by the connecting strap corresponding, to a swinging motion of the user's arm.