Inclusion Criteria:  A TrP will be diagnosed using the following criteria: palpable taut band, presence of a painful spot in the taut band, and referred pain on palpation of the spot.  Exclusion Criteria:  Participants were excluded if they reported any pain symptoms in the lower extremities in the previous year. They were also excluded if they presented previous surgical interventions, previous lower-extremity injury, any underlying medical disease, pregnancy, or muscle soreness after vigorous exercise.