Unfortunately, the results of a 2015 report on the use of digital efforts in the supply chain, created by SupplyChainDigest (SCDigest), indicate many supply chain partners are somewhat out of touch with the best way of leveraging data, analytics, KPIs, and the digital supply chain.
Average Holding Time For The Plank Exercise. 30 Seconds is Below Average. 1 to 2 Minutes is Average. 2 to 3 Minutes is Good. Above 3 Minutes is Excellent. 5 Minutes Plus is Great.
However, if you can hold a good form plank for 45-60 seconds without too much quivering and grunting, you have earned the privilege of moving on to more difficult variations, if you want. Just like a standard plank, each of these doesn't require anything more than your body and an iron will.