In terms of product design how large a weight could people in the 95th Percentile (Men & Women) lift in KG, per hand, without overly exerting themselves? This is in regards to anthropometrics, and the data would be used with 95th percentile hand sizes, etc.
As for defining overly exerting themselves, I'd say in terms of being able to hold an object for a prolonged period of time, without showing any noticeable signs in terms of biology that they were doing this, e.g. Sweating, Feeling Uncomfortable. For example, a phone is below this lift, a normal television is above.