Trim the aircraft for a stabilized approach.
In any of our single engine trainers (Cessnas, Pipers), if the students needs two hands on the yoke to land the plane, the student better be initiating a go-around.
Strength should never be an issue in those planes, especially if the aircraft is properly trimmed. If the student cannot control the yooke with one hand, perhaps the student should try another plane.
That throttle is going to save them more than having that extra hand on the yoke, especially if it is windy and the student has to use throttle to control the plane (add a little, take away a little, full throttle for the go-around).
I have seen this more frequently with students who have learned through JAA. Not sure if there is a trend there, just they often have two hands on yoke for takeoff and landing and fly the plane with two hands. To me that just increases workload. I had an instrument student who told me his instructor had him fly the plane with two hands as it is easier to control, and I questioned him on this the first time I did a 'hold' with him.
I also had an instrument student (200 hours) who had his own plane, C172. Every landing he did he bounced, small bounces and usually got it down after two to three bounces. It turns out he learned in the C152, and NEVER used trim for anything except straight and level. Once we started using trim for takeoffs and landings, things really smoothed out.