Table 4. Data describing the combined peak pressure recorded on the non-dominant hand of knappers while producing ‘late Acheulean handaxes’ (see definition provided in the main text), dependent on the type of technique used to remove mass from the core.

Mass removal strategy		n	Mean (kPa)	Median (kPa)	S.D. (kPa)	Min (kPa)	Max (kPa)
LAH	Hard hammer	617	264.9	235	159.5	17.5	930
	Soft hammer	617	231.8	215	134.8	17.5	785
	Platform preparation	269	323.5	297.5	172.8	17.5	802.5