What weights were they lifting? 'Moderately trained men' means nothing to me, also how did they train before? Some fit guy that is moderately trained and usual

What weights were they lifting? 'Moderately trained men' means nothing to me, also how did they train before? Some fit guy that is moderately trained and usually jogs every other day, then is tasked with doing squats for the first time. Yeah. Maybe someone has access to this data, otherwise point is moot.