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.
Conclusion. If you are trying to build muscle using only bodyweight exercises you can't simply do more of the same thing you've always done. U.S. Marine George Hood was able to hold the plank for over five hours. This shows tremendous muscular endurance, but it's not the way to build muscle size.