Strength and Conditioning Journal
Since 1982, the U.S. Navy has used the curl-up as part of its semiannual physical readiness test (PRT) to assess core muscular endurance. Although no formal study has been conducted yet, there is speculation that the incorporation of the curl-up into the PRT has contributed to the navy's lower back injury rate. Therefore, there has been considerable interest as of late to identify a safer (and more operationally relevant) alternative to the curl-up. The following article takes a formal look at the standard front plank as a possible replacement for the curl-up for incorporation into the Navy's PRT.
Exercise, armed forces, muscular system, human performance, standards, injuries, back
Peterson, David D., "Proposed Performance Standards for the Plank for Inclusion Consideration Into the Navy's Physical Readiness Test" (2013). Kinesiology and Allied Health Faculty Publications. 53.