Table 1.

PERFECT examination scheme of pelvic floor muscle (PFM).

P	Performance	Strength of maximum voluntary contraction (MVC) evaluated in the Oxford Modified Scale
		0	no contraction
		1	flickering or pulsation
		2	poor tension without lifting the vaginal walls
		3	moderate tension with vaginal walls lifting without resistance
		4	contraction with lifting of vaginal walls leading to join fingers in the vagina without therapist resistance
		5	strong contraction leading to join fingers in the vagina against resistance
E	Endurance	Muscle strength assessed in seconds (0–10) as the ability to maintain an MVC until it falls to 50% of MVC
R	Repetition	Number of MVC repetitions (0–10) of the length diagnosed in the endurance section
F	Fast	Performance of fast twitch fibers evaluated as the number of repetitions (0–10) of one-second MVC
E	Elevation	Cefalo-ventral elevation of PFM
C	Co-contraction	Reflex co-contraction of the transverse abdominal muscle during the contraction of the PFM
T	Timing	Involuntary PFM contraction during coughing provocation