Ker R, Bennett M, Bibby SR, et al: The spring in the arch of the human foot. Nature 325: 147, 1987.
Nigg BM, Herzog W: “Biomaterials,” in Biomechanics of the Musculoskeletal System, edited by BM Nigg and W Herzog, p 117, John Wiley & Sons, West Sussex, England, 1994.
Whiting W, Zernicke R: “Basic Biomechanics,” in Biomechanics of Musculoskeletal Injury, 2nd Ed, p 90, Human Kinetics, Champaign, IL, 2008.
Bigland-Ritchie B, Woods JJ: Changes in muscle contractile properties and neural control during human muscular fatigue. Muscle Nerve 7: 691, 1984.
Donahue SW, Sharkey NA: Strains in the metatarsals during the stance phase of gait: implications for stress fractures. J Bone Joint Surg Am 81: 1236, 1999.
Sharkey NA, Ferris L, Smith TS, et al: Strain and loading of the second metatarsal during heel-lift. J Bone Joint Sur Am 77: 1050, 1995.
Weist R, Eils E, Rosenbaum D: The influence of muscle fatigue on electromyogram and plantar pressure patterns as an explanation for the incidence of metatarsal stress fractures. Am J Sports Med 32: 1893, 2004.
Wu WL, Chang JJ, Wu JH, et al: EMG and plantar pressure patterns after prolonged running. Biomed Eng Applicat Basis Commun 19: 383, 2007.
Nagel A, Fernholz F, Kibele C, et al: Long distance running increases plantar pressures beneath the metatarsal heads: a barefoot walking investigation of 200 marathon runners. Gait Posture 27: 152, 2008.
Sharkey NA, Donahue SW, Ferris L: Biomechanical consequences of plantar fascial release or rupture during gait: part II. Alterations in forefoot loading. Foot Ankle Int 20: 86, 1999.
Headlee D, Leonard J, Hart J, et al: Fatigue of the plantar intrinsic foot muscles increases navicular drop. J Electromyogr Kinesiol 18: 420, 2008.
Bandholm T, Boysen L, Haugaard S, et al: Foot medial longitudinal-arch deformation during quiet standing and gait in subjects with medial tibial stress syndrome. J Foot Ankle Surg 47: 89, 2008.
Bennett JE, Reinking MF, Pluemer B, et al: Factors contributing to the development of medial tibial stress syndrome in high school runners. J Orthop Sports Phys Ther 31: 504, 2001.
Nakhaee Z, Rahimi A, Abaee M, et al: The relationship between the height of the medial longitudinal arch (MLA) and the ankle and knee injuries in professional runners. Foot 18: 84, 2008.
Plisky MS, Rauh MJ, Heiderscheit B, et al: Medial tibial stress syndrome in high school cross-country runners: incidence and risk factors. J Orthop Sports Phys Ther 37: 40, 2007.
Schepsis AA, Leach RE, Gorzyca J: Plantar fasciitis: etiology, treatment, surgical results, and review of the literature. Clin Orthop Relat Res 266: 185, 1991.
Taunton JE, Ryan MB, Clement DB, et al: Plantar fasciitis: a retrospective analysis of 267 cases. Phys Ther Sport 3: 57, 2002.
Pohl MB, Hamill J, Davis IS: Biomechanical and anatomic factors associated with a history of plantar fasciitis in female runners. Clin J Sport Med 19: 372, 2009.
Williams D, McClay I, Hamill J: Arch structure and injury patterns in runners. Clin Biomech 16: 341, 2001.
Kaufman KR, Brodine SK, Shaffer RA, et al: The effect of foot structure and range of motion on musculoskeletal overuse injuries. Am J Sports Med 27: 585, 1999.
Hasegawa H, Yamauchi T, Kraemer WJ: Foot strike patterns of runners at the 15-km point during an elite-level half marathon. J Strength Cond Res 21: 888, 2007.
Larson P, Higgins E, Kaminski J, et al: Foot strike patterns of recreational and sub-elite runners in a long-distance road race. J Sports Sci 29: 1665, 2011.
Nielsen R, Rathleff M, Simonsen O, et al: Determination of normal values for navicular drop during walking: a new model correcting for foot length and gender. J Foot Ankle Res 2: 12, 2009.
Williams DS, McClay IS: Measurements used to characterize the foot and the medial longitudinal arch: reliability and validity. Phys Ther 80: 864, 2000.
Richards CJ, Card K, Song J, et al: A novel arch height index measurement system (AHIMS): intra- and inter-rater reliability. Paper presented at: Proceedings of the American Society of Biomechanics 26th Annual Meeting, Toledo, OH, September 25–27, 2003.
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.
Haley SM, Fragala-Pinkham, MA: Interpreting change scores of tests and measures used in physical therapy. Phys Ther 86: 735, 2006.
Tranberg R, Karlsson D: The relative skin movement of the foot: a 2-D roentgen photogrammetry study. Clin Biomech 13: 71, 1998.
Nachbauer W, Nigg BM: Effects of arch height of the foot on ground reaction forces in running. Med Sci Sports Exerc 24: 1264, 1992.
Menz HB: Alternative techniques for the clinical assessment of foot pronation. JAPMA 88: 119, 1998.
Caravaggi P, Pataky T, Goulermas JY, et al: A dynamic model of the windlass mechanism of the foot: evidence for early stance phase preloading of the plantar aponeurosis. J Exp Biol 212: 2491, 2009.
Caravaggi P, Pataky T, Gunther M, et al: Dynamics of longitudinal arch support in relation to walking speed: contribution of the plantar aponeurosis. J Anat 217: 254, 2010.
Gefen A: The in vivo elastic properties of the plantar fascia during the contact phase of walking. Foot Ankle Int 24: 238, 2003.
Arndt A, Ekenman I, Westblad P, et al: Effects of fatigue and load variation on metatarsal deformation measured in vivo during barefoot walking. J Biomech 35: 621, 2002.
Schlee G, Milani T, Roemer K: Plantar pressure distribution, rearfoot motion and ground reaction force after long distance running. Footwear Sci 1: 129, 2009.
Chu I-T, Myerson MS, Nyska M, et al: Experimental flatfoot model: the contribution of dynamic loading. Foot Ankle Int 22: 220, 2001.
Czuba M, Zając A, Cholewa J, et al: Lactate threshold (D-max method) and maximal lactate steady state in cyclists. J Hum Kinet 21: 49, 2009.
Green HJ, Hughson RL, Orr GW, et al: Anaerobic threshold, blood lactate, and muscle metabolites in progressive exercise. J Appl Physiol 54: 1032, 1983.
Pohl MB, Rabbito M, Ferber R: The role of tibialis posterior fatigue on foot kinematics during walking. J Foot Ankle Res 3: 6, 2010.
Robbins SE, Hanna AM: Running-related injury prevention through barefoot adaptation. Med Sci Sports Exerc 19: 148, 1987.
Maslen B, Ackland T: Radiographic study of the skin displacement errors in the foot and ankle during standing. Clin Biomech 9: 291, 1994.
Wearing SC, Urry S, Perlman P, et al: Sagittal plane motion of the human arch during gait: a videofluoroscopic analysis. Foot Ankle Int 19: 738, 1998.
Medial longitudinal arch integrity after prolonged running has yet to be well documented. We sought to quantify changes in medial longitudinal arch kinematics before and after a 45-min run in healthy recreational runners.
Thirty runners performed barefoot seated, standing, and running trials before and after a 45-min shod treadmill run. Navicular displacement, arch lengthening, and the arch height index were used to quantify arch deformation, and the arch rigidity index was used to quantify arch stiffness.
There were no statistically significant differences in mean (95% confidence interval) values for navicular displacement (5.6 mm [4.7–6.4 mm]), arch lengthening (3.2 mm [2.6–3.9 mm]), change in arch height index (0.015 [0.012–0.018]), or arch rigidity index (0.95 [0.94–0.96]) after the 45-min run (all multivariate analyses of variance P ≥ .065).
Because there were no statistically significant changes in arch deformation or rigidity, the structures of a healthy, intact medial longitudinal arch are capable of either adapting to cyclical loading or withstanding a 45-min run without compromise.