When I think of the power, I imagine those rare instances where a 90-pound woman has lifted a car off of a loved-one. The individual who accomplishes such a feat has most certainly exceeded the limits of their physical potential and accomplished the miraculous.
Here's description of the power found on page 309 of the core book:
QUOTE
You call upon inner strength to perform amazing physical feats beyond their normal abilities. Attribute Boost must be purchased for a specific Physical Attribute (Agility, Body, Reaction, or Strength); separate Attribute Boost powers may be bought for different attributes. This power cannot be purchased for a Mental or Special Attribute.
When you activate this power, make a Magic + Attribute Boost Rating Test. Each hit on this test boosts your attribute rating by 1, up to your augmented Attribute maximum. This only affects your dice pools; your Physical limit and Initiative ratings don’t change with Attribute Boost. The boost lasts for a number of Combat Turns equal to twice the number of hits you get. When the boost runs out, you take Drain equal to the level of this power.
When you activate this power, make a Magic + Attribute Boost Rating Test. Each hit on this test boosts your attribute rating by 1, up to your augmented Attribute maximum. This only affects your dice pools; your Physical limit and Initiative ratings don’t change with Attribute Boost. The boost lasts for a number of Combat Turns equal to twice the number of hits you get. When the boost runs out, you take Drain equal to the level of this power.