In addition to providing targeted treatment for intrinsic muscles of the foot, practitioners are now able to measure strength before, during and after treatment to ensure effective therapy.
The Toe Strength Dynamometer is the first low cost and easily available instrument to assist in the measurement of foot strength in all people, including those with diabetes. The instrument evolved from the research of Professor Hylton Menz at La Trobe University in 2006 who sought to identify a simple method of measuring foot strength in a clinical setting using the age-old Paper Grip test (Menz et al., 2006). Leading author and respected biomechanics expert Dr Thomas Michaud adapted this technique to create the Toe Strength Dynamometer (Product name – ToePro Dynamometer™). Toe grip strength has been shown to detect foot muscle weakness and can predict risk of falls (Menz, Morris and Lord, 2006; Mickle et al., 2009), reduced athletic performance (Kulmala et al., 2014; Paquette, Devita and Williams, 2018), clawing of the toes (Mickle et al., 2009), and has been implicated in heel pain development (Sullivan et al., 2015; Barnes et al., 2017) and knee pain (Uritani et al., 2017) amongst other conditions. Identifying weakness and measuring response to physical therapy objectively has been difficult in a clinical setting. The Toe Strength Dynamometer gives practitioners the opportunity to solve this problem and measure physical therapy interventions for a variety of conditions in both diabetes and in a wide variety of other ailments of the lower limb. The Toe Strength Dynamometer can be used quickly and simply to create reliable, reproducible tests of foot strength and can be used as part of a standard foot assessment. With the identification of foot weakness practitioners can implement foot strength and mobilisation programs to assist in reversing the loss of strength and to maintain mobility of the forefoot (Balducci et al., 2006; Sartor et al., 2014; Kanchanasamut and Pensri, 2017). References Balducci, S. et al. (2006) ‘Exercise training can modify the natural history of diabetic peripheral neuropathy’, Journal of Diabetes and its Complications, 20(4), pp. 216–223. doi: 10.1016/j.jdiacomp.2005.07.005. Barnes, A. et al. (2017) ‘Clinical and Functional Characteristics of People With Chronic and Recent-Onset Plantar Heel Pain’, PM and R. American Academy of Physical Medicine and Rehabilitation, 9(11), pp. 1128–1134. doi: 10.1016/j.pmrj.2017.04.009. Kanchanasamut, W. and Pensri, P. (2017) ‘Effects of weight-bearing exercise on a mini-trampoline on foot mobility, plantar pressure and sensation of diabetic neuropathic feet; a preliminary study’, Diabetic Foot and Ankle. Taylor & Francis, 8(1). doi: 10.1080/2000625X.2017.1287239. Kulmala, J. et al. (2014) ‘Which muscles compromise human locomotor performance with age ? Which muscles compromise human locomotor performance with age ?’ Menz, H. B. et al. (2006) ‘Plantarflexion Strength of the Toes: Age and Gender Differences and Evaluation of a Clinical Screening Test’, Foot & Ankle International, 27(12), pp. 1103–1108. doi: 10.1177/107110070602701217. Menz, H. B., Morris, M. E. and Lord, S. R. (2006) ‘Foot and Ankle Risk Factors for Falls in Older People: A Prospective Study’, The Journals of Gerontology Series A: Biological Sciences and Medical Sciences, 61(8), pp. 866–870. doi: 10.1093/gerona/61.8.866. Mickle, K. J. et al. (2009) ‘ISB Clinical Biomechanics Award 2009. Toe weakness and deformity increase the risk of falls in older people’, Clinical Biomechanics. Elsevier Ltd, 24(10), pp. 787–791. doi: 10.1016/j.clinbiomech.2009.08.011. Paquette, M. R., Devita, P. and Williams, D. S. B. (2018) ‘Biomechanical Implications of Training Volume and Intensity in Aging Runners’, Medicine and Science in Sports and Exercise, 50(3), pp. 510–515. doi: 10.1249/MSS.0000000000001452. Sartor, C. D. et al. (2014) ‘Effects of strengthening, stretching and functional training on foot function in patients with diabetic neuropathy: Results of a randomized controlled trial’, BMC Musculoskeletal Disorders, 15(1), pp. 1–13. doi: 10.1186/1471-2474-15-137. Sullivan, J. et al. (2015) ‘Musculoskeletal and activity-related factors associated with plantar heel pain’, Foot and Ankle International, 36(1), pp. 37–45. doi: 10.1177/1071100714551021. Uritani, D. et al. (2017) ‘Relationship between toe grip strength and osteoarthritis of the knee in Japanese women: A multi-centre study’, Physiotherapy (United Kingdom), 101(25870971), pp. eS1560-eS1561. doi: http://dx.doi.org/org/10.1016/j.physio.2015.03.1559.
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AuthorMatt Dilnot is a Podiatrist working in the Eastern Suburbs of Melbourne, Victoria. Archives
May 2020
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