1. Adjustable Grip-Angle Barbell Colin, Dan, Jillian, Sam Group 4

2. Design Purpose Help improve efficiency of weight lifting activities Help improve efficiency of weight lifting activities More sport specific weight training More sport specific weight training Avoid reaching a plateau Avoid reaching a plateau Reduce pain in wrists Reduce pain in wrists

3. Weight Room Injuries In a review of data from U.S. emergency rooms, it was found that injuries from weight-training activities and equipment have increased 35% over a 20-year period. In a review of data from U.S. emergency rooms, it was found that injuries from weight-training activities and equipment have increased 35% over a 20-year period. In a study, 23.8% of injuries in the weight room are wrist and hand related. It is the most common weight room injury. In a study, 23.8% of injuries in the weight room are wrist and hand related. It is the most common weight room injury. There were over 970 000 injuries from weight training treated in U.S. emergency rooms from 1990 to 2007 There were over 970 000 injuries from weight training treated in U.S. emergency rooms from 1990 to 2007 Adjustable handle provides more angles to choose from Adjustable handle provides more angles to choose from Less wait time in gyms Less wait time in gyms

4. Barbell Curl http://www.idfa.ca/exercises/standing-barbell-curl Shoulder width, underhand grip Elbows kept at sides Pull arms up to vertical position

5. Bench Press Lay flat on backLay flat on back Lower bar to chestLower bar to chest Push up until arms are fully extendedPush up until arms are fully extended Bring back to chest, repeatBring back to chest, repeat http://aegisperformance.com/exercises/benc h-press/

6. Not Sport Specific Hands in line with arms,Hands in line with arms, thumbs up Chest and tricepsChest and tricepsmuscles Extremely important inExtremely important infootball http://playfullthrottle.com/?p=6025

7. Plateauing http://www.90dayworkoutplan.com/wp-content/uploads/2009/05/muscle-confusion.jpg

8. The Design

9. Sources http://www.webmd.com/fitness-exercise/features/keep-weight-training- injury-free http://www.webmd.com/fitness-exercise/features/keep-weight-training- injury-free http://www.webmd.com/fitness-exercise/features/keep-weight-training- injury-free http://www.webmd.com/fitness-exercise/features/keep-weight-training- injury-free http://www.livestrong.com/article/167071-common-weight-room-injuries/ http://www.livestrong.com/article/167071-common-weight-room-injuries/ http://www.livestrong.com/article/167071-common-weight-room-injuries/ http://www.realjock.com/article/1638 http://www.realjock.com/article/1638 http://www.realjock.com/article/1638