Relation between current and used energy
As some comments already stated, the resistance decreases when you put a physical load on an inductive Motor.

The reason can be described by Lenz's Law (Wiki). If the motor spins faster (no physical load) there will be more changes of the magnetic field (higher RPM), which results in an induction which works against the current flow of the supply voltage. That means there is less current that flows -> higher Resistance.

If you attach a physical load, that slows down the RPM of the motor, the changes of the magnetic field will be less and so the Induction reduces, which results in a lower resistance (more accurate: impedance[Wiki]).And as you know a lower resistance will result in a higher current by a constant voltage (Ohm's Law).