Shibuya N, Jupiter DC, Ciliberti LJ et al: Characteristics of adult flatfoot in the United States. J Foot Ankle Surg 49: 363, 2010.
Myerson M: Adult Acquired Flat Foot Deformity, WB Saunders, San Diego, 2003.
Levy JC, Mizel MS, Wilson LS, et al: Incidence of foot and ankle injuries in West Point cadets with pes planus compared to the general cadet population. Foot Ankle Int 27: 1060, 2006.
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.
Willems T, Witvrouw E, Verstuyft J, et al: Proprioception and muscle strength in subjects with a history of ankle sprains and chronic instability. J Athlet Train 37: 487, 2002.
Glick JM, Gordon RB, Nishimoto D: The prevention and treatment of ankle injuries. Am J Sports Med 4: 136, 1976.
Houglum PA, Bertoti DB: Brunnstrom’s Clinical Kinesiology, 6th Edition, FA Davis Co, Philadelphia, 2011.
Hupperets MD, Verhagen EA, Van Mechelen W: Effect of sensorimotor training on morphological, neurophysiological and functional characteristics of the ankle. Sports Med 39: 591, 2009.
Hupperets MD, Verhagen EA, Van Mechelen W: The 2BFit study: is an unsupervised proprioceptive balance board training programme, given in addition to usual care, effective in preventing ankle sprain recurrences? Design of a randomized controlled trial. BMC Musculoskel Dis 9: 1, 2008.
Hermens HJ, Freriks B, Disselhorst-Klug C, et al: Development of recommendations for SEMG sensors and sensor placement procedures. J Electromyography Kinesiol 10: 361, 2000.
Hermens HJ, Freriks B, Merletti R, et al: European recommendations for surface electromyography. Roessingh Res Develop 8: 13, 1999.
Wolburg T, Rapp W, Rieger J, et al: Muscle activity of leg muscles during unipedal stance on therapy devices with different stability properties. Phys Therap Sport 17: 58, 2016.
Eils E, Rosenbaum D: A multi-station proprioceptive exercise program in patients with ankle instability. Med Sci Sport Exerc 33: 1991, 2001.
Willy RW, Davis IS: The effect of a hip-strengthening program on mechanics during running and during a single-leg squat. J Orthop Sports Phys Ther 41: 625, 2011.
Dos Santos RA, Derhon V, Brandalize M, et al: Evaluation of knee range of motion: Correlation between measurements using a universal goniometer and a smartphone goniometric application. J Bodywork Movement Thera 21: 699, 2017.
Panichawit C, Bovonsunthonchai S, Vachalathiti R, et al: Effects of foot muscles training on plantar pressure distribution during gait, foot muscle strength, and foot function in persons with flexible flatfoot. J Med Assoc Thai 98: S12, 2015.
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.
Loudon JK, Jenkins W, Loudon KL: The relationship between static posture and ACL injury in female athletes. J Orthop Sports Phys Ther 24: 91, 1996.
Angin S, Crofts G, Mickle KJ, et al: Ultrasound evaluation of foot muscles and plantar fascia in pes planus. Gait Posture 40: 48, 2014.
Criswell E. Cram’s Introduction to Surface Electromyography, Jones & Bartlett Publishers, Burlington, MA, 2010.
Harput G, Soylu AR, Ertan H, et al: Activation of selected ankle muscles during exercises performed on rigid and compliant balance platforms. J Orthop Sports Phys Ther 43: 555, 2013.
Ferreira LAB, Pereira WM, Rossi LP, et al: Analysis of electromyographic activity of ankle muscles on stable and unstable surfaces with eyes open and closed. J Bodywork Movement Thera 15: 496, 2011.
Lehman GJ, McGill SM: The importance of normalization in the interpretation of surface electromyography: a proof of principle. J Manipulative Physiol Therapeutics 22: 444, 1999.
McPoil TG, Cornwall MW, Medoff L, et al: Arch height change during sit-to-stand: an alternative for the navicular drop test. J Foot Ankle Res 1: 1, 2008.
Song J, Hillstrom H, Secord D, et al: Foot type biomechanics. comparison of planus and rectus foot types. JAPMA 86: 16, 1996.
Buldt AK, Allan JJ, Landorf KB, et al: The relationship between foot posture and plantar pressure during walking in adults: A systematic review. Gait Posture 62: 56, 2018.
Severin AC, Burkett BJ, McKean MR, et al: Quantifying kinematic differences between land and water during squats, split squats, and single-leg squats in a healthy population. PloS one 12: e0182320, 2017.
Graci V, Van Dillen LR, Salsich GB: Gender differences in trunk, pelvis and lower limb kinematics during a single-leg squat. Gait Posture 36: 461, 2012.
Dohm-Acker M, Spitzenpfeil P, Hartmann U: Effect of proprioceptive trainings tools for the muscles in stance stability. Sportverletzung Sportschaden: Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin 2: 52, 2008.
Solomonow M, Krogsgaard M: Sensorimotor control of knee stability. A review. Scandinavian J Med Sci Sport 1: 64, 2001.
Çınar-Medeni Ö, Atalay Guzel N, Basar S: Mild hallux valgus angle affects single-limb postural stability in asymptomatic subjects. J Back Musculoskel Rehabil 29: 117, 2016.
Background: The primary aim of this study is to examine the effect of the stiffness of rehabilitation material on muscle activation in individuals with low medial longitudinal arch. The secondary aim is to compare the effects of single-leg balancing and single-leg squat exercises on the activation of the muscles around the ankle in the same individuals.
Methods: Twelve individuals with low medial longitudinal arch and 18 healthy control participants were included. Participants were asked to perform the single-leg balance and single-leg squat exercises on Theraband stability trainers of three different stiffness levels. Activation of the peroneus longus, peroneus brevis, tibialis anterior, medial and lateral gastrocnemius muscles during exercises was evaluated by surface electromyography.
Results: The single-leg balancing exercise performed on soft and very soft ground was more effective than single-leg squat in increasing the activation of the lateral gastrocnemius muscle in participants with a low medial longitudinal arch. It was determined that performing single-leg squat exercise on a very soft surface instead of hard ground caused more muscular activation in the peroneus brevis, tibialis anterior, and medial gastrocnemius in the same individuals.
Conclusions: The exercise progression to be applied on different surfaces to increase the activation of the muscles around the ankle in individuals with a low medial longitudinal arch and in healthy individuals without a low medial longitudinal arch was different.