CanFitPro Personal Training Specialist Practice Test

Signs of an acute injury typically include immediate swelling, bruising, redness, increased warmth, and loss of normal function in the affected area. Option A is incorrect because increased flexibility is not typically associated with an acute injury. Option B is incorrect because a gradual improvement of function would not be a sign of an acute injury. Option D is incorrect because a sudden improvement of muscle strength is also not typically associated with an acute injury. Overall, the signs listed in option C are commonly used to classify an injury as acute.