Saltzman CL, Nawoczenski DA, Talbot KD: Measurement of the medial longitudinal arch. Arch Phys Med Rehabil 76: 45, 1995.
Cavanagh PR, Morag E, Boulton AJM, et al: The relationship of static foot structure to dynamic foot function. J Biomech 30: 243, 1997.
Nawoczenski DA, Saltzman CL, Cook TM: The effect of foot structure on the three-dimensional kinematic coupling behavior of the leg and rearfoot. Phys Ther 78: 404, 1998.
Hawes MR, Nachbauer W, Sovak D, et al: Footprint parameters as a measure of arch height. Foot Ankle 13: 2, 1992.
Cowan DN, Jones BH, Robinson JR: Foot morphologic changes and risk of exercise-related injury. Arch Fam Med 2: 773, 1993.
Giladi M, Milgrom C, Stein M, et al: The low arch, a protective factor in stress fractures. Orthop Rev 24: 709, 1985.
Dahle LK, Mueller M, Delitto A, et al: Visual assessment of foot type and relationship of foot type to lower extremity injury. J Orthop Sports Phys Ther 14: 70, 1991.
Williams DS, McClay IS: Measurements used to characterize the foot and the medial longitudinal arch: reliability and validity. Phys Ther 80: 864, 2000.
Butler RJ, Hillstrom H, Song J, et al: Arch height index measurement system: establishment of reliability and normative values. JAPMA 98: 102, 2008.
McPoil TG, Cornwall MW, Vicenzino B, et al: Effect of using truncated versus total foot length to calculate the arch height ratio. The Foot 18: 220, 2008.
Teyhen DS, Stoltenberg BE, Collinsworth KM, et al: Dynamic plantar pressure parameters associated with static arch height index during gait. Clin Biomech 24: 391, 2009.
Williams DS, McClay IS, Hamill J: Arch structure and injury patterns in runners. Clin Biomech 16: 341, 2001.
Williams DS, Davis IM, Scholz JP, et al: High-arched runners exhibit increased leg stiffness compared to low-arch runners. Gait Posture 19: 263, 2004.
Butler RJ, Davis IS, Hamill J: Interaction of arch type and footwear on running mechanics. Am J Sports Med 34: 1998, 2006.
Zifchock RA, Davis I, Hillstrom H, et al: The effect of gender, age and lateral dominance on arch height and arch stiffness. Foot Ankle Int 27: 367, 2006.
Butler RJ, Hamill J, Davis I: Effect of footwear on high and low arched runners' mechanics during a prolonged run. Gait Posture 26: 219, 2007.
Zifchock RA, Davis I: A comparison of semi-custom and custom foot orthotic devices in high- and low-arched individuals during walking. Clin Biomech 23: 1287, 2008.
Swedler DI, Knapik JJ, Grier T, et al: Validity of plantar surface visual assessment as an estimate of foot arch height. Med Sci Sports Exerc 42: 375, 2010.
McPoil TG, Schuit D, Knecht HG: A comparison of three positions used to evaluate tibial varum. JAPMA 78: 22, 1988.
Sell KE, Verity TM, Worrell TW, et al: Two measurement techniques for assessing subtalar joint position: a reliability study. J Orthop Sport Phys Ther 19: 162, 1994.
Bryant JA: A comparison of radiographic foot measurements taken in two different positions. JAPMA 91: 234, 2001.
McPoil TG, Vicenzino B, Cornwall MW, et al: Can foot anthropometric measurements predict dynamic plantar surface contact area? J Foot Ankle Res 2: 28, 2009.
Vicenzino B, Collins N, Cleland J, et al: A clinical prediction rule for identifying patients with patellofemoral pain who are likely to benefit from foot orthoses: a preliminary determination. Br J Sports Med 44: 862, 2010.
Shrout P, Fleiss J: Intraclass correlations: uses in assessing rater reliability. Psychol Bull 86: 420, 1979.
Landis JR, Koch GG: The measurement of observer agreement for categorical data. Biometrics 33: 159, 1977.
Rothstein JM: “Measurement and Clinical Practice: The Theory and Application,” in Measurement in Physical Therapy, edited by JM Rothstein, p 40, Churchill Livingstone, New York, 1985.
McPoil TG, Vicenzino B, Cornwall MW, et al: Reliability and normative values for the foot mobility magnitude: a composite measure of vertical and medial-lateral mobility of the midfoot. J Foot Ankle Res 2: 6, 2009.
McPoil TG, Warren M, Vicenzino B, et al: Variations in foot posture and mobility between individuals with patellofemoral pain and those in a control group. JAPMA 101: 289, 2011.
Previous studies have reported conflicting results on whether different foot placements in standing can affect static measurements of foot posture. We sought to determine whether three measurements of static foot posture could be consistently measured in three different foot placements while standing.
Twenty individuals, 12 women and eight men, with a mean age of 24.8 years consented to participate. Two raters assessed the dorsal arch height, midfoot width, and heel width of each foot while the participant stood in the following three foot placements: a standardized placement, a participant-determined placement after marching in place, and a rater-determined foot placement based on observation of the participant's angle of gait and base of support while walking.
All three measurements of static foot posture were shown to have high levels of intrarater and interrater reliability. Significant differences in the measurements of dorsal arch height, midfoot width, and heel width were found among all three of the foot placements. There were no differences between the two raters for any of the three measurements of foot posture.
Based on these findings, we recommend that clinicians perform measurements of static foot posture using the same standing foot placement between sessions to ensure a high level of measurement consistency.