Foot最新文献

{"title":"Barefoot pressure distribution of diabetic patients and non-diabetic volunteer subjects after sensorimotor training with an unstable shoe construction","authors":"M. Maetzler ,&nbsp;T. Bochdansky ,&nbsp;W. Wang ,&nbsp;R.J. Abboud","doi":"10.1016/j.foot.2024.102102","DOIUrl":"10.1016/j.foot.2024.102102","url":null,"abstract":"<div><h3>Background</h3><p>Forty-three percent of all diabetic foot ulcers occur under the medial forefoot due to a medial deviation of elevated pressures and premature forefoot ground contact in neuropathic diabetic patients. A 6-week sensorimotor training period with an unstable shoe construction reduces in-shoe peak pressures and contact times under the medial aspect of the forefoot.</p></div><div><h3>Methods</h3><p>The study was designed as a Randomised Control Trial with two diabetic groups (one served as intervention group and one as control group) and one non-diabetic intervention group. Measurements for barefoot pressure distribution and contact times were taken by means of an Emed® pressure measurement platform (Novel GmbH, Munich) before and after 6 weeks. During this time the diabetic and the non-diabetic intervention groups were required to wear an unstable shoe construction (Masai Barefoot Technology, MBT®) for at least four hours per day.</p></div><div><h3>Findings</h3><p>Results for the non-diabetic intervention group showed significantly later contact times for the medial portion of the forefoot, resulting in shorter contact times. Peak pressure was also reduced under the medial aspect of the foot while it was increased under the lateral aspect of the foot. Changes for the diabetic intervention group followed the same pattern while the values of the diabetic control group shifted away from the reference values.</p></div><div><h3>Interpretation</h3><p>A 6-week sensorimotor training period with an unstable shoe construction can change barefoot peak pressures and contact times in non-diabetic subjects and in diabetic patients in the most endangered area, i.e. the medial forefoot.</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"60 ","pages":"Article 102102"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141281518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Foot radiologic morphology as a predictor of pseudo-jones fractures: A retrospective case-control study","authors":"Erdi Imre ,&nbsp;Bilgin Bozgeyik ,&nbsp;Onur Kaya","doi":"10.1016/j.foot.2024.102103","DOIUrl":"https://doi.org/10.1016/j.foot.2024.102103","url":null,"abstract":"<div><h3>Background</h3><p>Fifth metatarsal basis fractures are common injuries. Zone 1 fractures are also known as pseudo-jones fractures. This study aimed to elucidate the impact of foot radiologic morphology on pseudo-Jones fractures.</p></div><div><h3>Methods</h3><p>Patients with pseudo-Jones fractures formed the case group and individuals with ankle sprains but no fractures formed control group. Weight-bearing anteroposterior and lateral radiographs were evaluated for pre-determined measurements: metatarsus adductus angle (MAA), intermetatarsal angles (1−2, 4−5), calcaneal inclination (CI) angle, and fifth metatarsal base angle. All measurements were performed by a single investigator using digital PACS tools. Statistical analysis compared these radiographic parameters between the groups.</p></div><div><h3>Results</h3><p>The fracture group demonstrated a significantly lower 4–5 intermetatarsal and calcaneal inclination angles than the control group (p &lt; 0.05). Notably, no statistically significant difference was found in the metatarsus adductus angle.</p></div><div><h3>Conclusion</h3><p>This study demonstrates a potential association between foot radiographic morphology and pseudo-Jones fractures. Patients with a lower 4–5 IMA and calcaneal inclination angle may be at a higher risk for developing pseudo-Jones fractures. However, these requires future prospective studies.</p></div><div><h3>Level of evidence</h3><p>Level III case control study</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"60 ","pages":"Article 102103"},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141292018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of ankle muscle activity: A study on static balance with eyes closed and high-heeled shoes","authors":"Maristella Borges Silva ,&nbsp;Luciane Fernanda Rodrigues Martinho Fernandes ,&nbsp;Rhaíra Helena Caetano e Souza ,&nbsp;Angela Abreu Rosa de Sá ,&nbsp;Eduardo Lázaro Martins Naves","doi":"10.1016/j.foot.2024.102100","DOIUrl":"10.1016/j.foot.2024.102100","url":null,"abstract":"<div><h3>Background</h3><p>Changes in sensory afferent interfere with the control of postural stability by the central nervous system. Wearing high-heeled shoes is an example of an external disturbance that changes sensory inputs and results in several postural adjustments to control stability. Thus, our purpose is to investigate the influence of high-heeled shoes and visual absence on maintenance of static balance and on ankle muscle activity among young women. Our hypothesis is that the combination of high-heeled shoes with visual absence lead to an increase of postural sway and of levels of activation of the stabilizing ankle muscles.</p></div><div><h3>Methods</h3><p>Nine volunteers remained in an unrestrained erect posture on a force platform for collecting of stabilometric and electromyographic parameters in four bipodal conditions: barefoot with open eyes, barefoot with closed eyes, with high heels and open eyes and with high heels and closed eyes.</p></div><div><h3>Results</h3><p>When comparing the experimental condition open and closed eyes with high heels, there were significant differences for all stabilometric variables, except for the confidence ellipse area. Statistical differences were found for the medial gastrocnemius muscle in all comparison pairs with high heels.</p></div><div><h3>Conclusion</h3><p>The wearing high-heeled shoes showed to be the most influencing disturbance on static balance. Our findings suggest ankle muscle activity is adapted according to changes of the center of pressure sway and the wearing of high heels changes the muscle activation and postural sway.</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"60 ","pages":"Article 102100"},"PeriodicalIF":0.0,"publicationDate":"2024-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141143167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Weil’s osteotomy versus distal metatarsal metaphyseal osteotomy for the treatment of metatarsalgia. A metaanalysis of outcome and complications","authors":"Ioannis M. Stavrakakis ,&nbsp;George E. Magarakis ,&nbsp;Petros Kapsetakis ,&nbsp;Chrysostomos Tsatsoulas ,&nbsp;Alexandros Tsioupros ,&nbsp;Georgios Datsis","doi":"10.1016/j.foot.2024.102101","DOIUrl":"10.1016/j.foot.2024.102101","url":null,"abstract":"<div><h3>Background</h3><p>Weil’s osteotomy (WO) and distal metatarsal metaphyseal osteotomy (DMMO) are considered to be the gold standard of managing metatarsalgia. Stiffness and floating toe are the main disadvantages of the WO, whereas delayed union or malunion and prolonged swelling are the main complications of the DMMO. The purpose of this study is to compare these two methods, in terms of outcome and complications, through a metaanalysis of the literature.</p></div><div><h3>Materials and methods</h3><p>Pubmed, Google Scholar and Mendeley databases were searched for studies comparing directly the outcome of DMMO and Weil’s osteotomy, with a minimum follow up of six months. The random effects model was used for the metaanalysis. The quality of studies was assessed using the MINORS criteria.</p></div><div><h3>Results</h3><p>Four studies were eligible for the analysis including 211 patients in total. The mean difference of the postoperative American Orthopaedic Foot and Ankle Society (AOFAS) score and the visual analogue scale (VAS) among the two techniques was − 1,04 (C.I.: −3,50 – 1,43) and − 0,39 (CI: −0,83 – 0,08) respectively. The risk difference regarding postoperative stiffness, swelling and residual metatarsalgia was − 0,09 (95% C.I.: −0,23 – 0,06), − 0,17 (95% C.I.: −0,62 – 0,29) and − 0,06 (95% C.I.: −0,20 – 0,08) respectively.</p></div><div><h3>Conclusion</h3><p>Based on the existing literature, Weil’s osteotomy and DMMO are equally safe and effective for the treatment of metatarsalgia. More studies of better quality are required, in order to extract safer and absolute conclusions regarding this topic.</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"60 ","pages":"Article 102101"},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141030965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Podiatric conditions observed in Special Olympics athletes: Contrasting data from a USA versus an international population","authors":"David W. Jenkins ,&nbsp;McKenzie Schlangen ,&nbsp;Brandon Winski ,&nbsp;Charlotte Bolch","doi":"10.1016/j.foot.2024.102099","DOIUrl":"https://doi.org/10.1016/j.foot.2024.102099","url":null,"abstract":"<div><h3>Objectives</h3><p>Persons with intellectual disabilities frequently have podiatric conditions. Findings from the 2018 United States Summer games (USA) venues are compared to those from athletes screened at the 2019 Special Olympics World Summer Games in Abu Dhabi, United Arab Emirates (UAE).</p></div><div><h3>Methods</h3><p>Data from Fit Feet screenings from 2445 United Arab Emirates (UAE) participants were compared to 1244 US participants.</p></div><div><h3>Results</h3><p>A sampling of results that reflect significant differences in findings between the USA cohort and Abu Dhabi cohort include ankle joint range of motion, excessive abduction, hallux abducto valgus and pes planus. The overall shoe to foot mismatch was found to be 52.2%. A professional referral was recommended 27.7% of the time in the USA data and 28.5% in the Abu Dhabi data. An urgent referral was requested 5.1% of the time for the USA data and 3.7% of the time in the Abu Dhabi data.</p></div><div><h3>Conclusion</h3><p>Special Olympics athletes experience a greater prevalence of identifiable podiatric conditions as compared to the general population. Several of the conditions investigated in this study differed significantly between the international Special Olympics cohort and the USA cohort. Assessment of the feet of Special Olympics athletes can help to better appreciate the podiatric conditions in a population of individuals with intellectual disabilities. The variance identified between populations of Special Olympics athletes may be a reflection on the lack of standardization of conditions that are assessed for as well as the disparate characteristics of the clinical volunteers. Future Fit Feet events may wish to consider significant improvements in objectivity and standardization as it pertains to the conditions that are evaluated for in the Fit Feet exam.</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"59 ","pages":"Article 102099"},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140918455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Classifications in adult pes cavus – A scoping review","authors":"Karan Malhotra ,&nbsp;Shelain Patel ,&nbsp;Nicholas Cullen ,&nbsp;Matthew Welck","doi":"10.1016/j.foot.2024.102098","DOIUrl":"https://doi.org/10.1016/j.foot.2024.102098","url":null,"abstract":"<div><h3>Aims</h3><p>The adult cavus foot represents a challenging clinical problem, with varied aetiology and complex, 3-dimensional deformities. Thus far, the cavus foot has eluded a unified classification. The aim of this paper was to appraise the literature to identify classification systems which guide the operative management of neurological cavus feet in adults.</p></div><div><h3>Methods</h3><p>As the aim of this paper was broad, a scoping review was conducted. The review was conducted in line with published frameworks. Our principal research question was ‘what classification systems that guide surgical management currently exist for neurological cavus feet in adults’. We searched CINAHL, Embase, OVID, Proquest, Pubmed, Scopus and Web of Science databases using MESH and non-MESH terms. Two authors independently reviewed abstracts / papers and a data extraction sheet was used to collect the relevant data.</p></div><div><h3>Results</h3><p>A total of 1140 articles were initially screened, identifying 125 articles for which a full text review was performed. Only three articles met all our inclusion criteria. All these articles reported an anatomical classification with suggestions for treatment based on the classification. All were considered to comprise Level V evidence, and none reported outcomes of treatment based on the classification.</p></div><div><h3>Conclusions</h3><p>There is currently a paucity of robust classifications to guide treatment in neurological cavus feet in adults. The few classifications systems that exist are varied and do not as yet have sufficient evidence to support their widespread use. Further work is required, aimed at identifying specific features of cavus feet that would guide operative treatment.</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"59 ","pages":"Article 102098"},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0958259224000312/pdfft?md5=589bf3c2ecf90263b6a2277759803c11&pid=1-s2.0-S0958259224000312-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140649117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiological angle assessment of Haglund’s deformity: validation on Magnetic Resonance Imaging","authors":"N. Jenko ,&nbsp;S. Ariyaratne ,&nbsp;C. Azzopardi ,&nbsp;K.P. Iyengar ,&nbsp;H. Prem ,&nbsp;N. Nischal ,&nbsp;B. Budair ,&nbsp;R. Botchu","doi":"10.1016/j.foot.2024.102096","DOIUrl":"https://doi.org/10.1016/j.foot.2024.102096","url":null,"abstract":"<div><h3>Purpose</h3><p>Haglund’s deformity, an abnormality at the postero-superior corner of the calcaneus is a common cause of posterior heel pain. To date numerous measurements of radiological angles related to the calcaneus have been proposed to differentiate between symptomatic and asymptomatic patients with the deformity. Traditionally, these measurements have been assessed on plain radiographs. The aim of this study was to identify measurements which can be applied to Magnetic Resonance Imaging (MRI) studies of the ankle.</p></div><div><h3>Methods</h3><p>A retrospective cohort analysis of 30 MRI ankle studies from patients with symptomatic Haglund’s deformity and 32 normal studies as controls was undertaken. The angle of BRINK, the Achilles angle, Calcaneal pitch, Achilles-plantar fascia angle and soleus calcaneal distance were measured on optimal T2 fat-saturated sagittal slices.</p></div><div><h3>Results</h3><p>There was a statistically significant difference (p &lt; 0.0001) in the angle of BRINK between the Haglund’s and control group. The Area-Under-the-Curve (AUC) was 0.7783 in keeping with good discrimination between the two groups. The angle of BRINK measurement is reproducible, with an intra-observer ICC of 0.837 and an inter-observer ICC of 0.824. There was no statistically significant difference between the two groups for the other measurements. In the Haglund’s group the Achilles tendon was more likely to attach to the mid 1/3 of the posterior calcaneus as opposed to the superior 1/3 (p = 0.02), calcaneal oedema was more likely to be present (p &lt; 0.001) and non-insertional tendinopathy was more likely to be present (p &lt; 0.001). The presence of a retrocalcaneal bursa is non-specific (p = 0.602).</p></div><div><h3>Conclusion</h3><p>The angle of BRINK demonstrates good discrimination between normal and Haglund’s cases on MRI studies and may improve patient management by supporting surgical decision-making. Future work should correlate the angle of BRINK to long-term outcomes.</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"59 ","pages":"Article 102096"},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140554891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of foot somatosensory loss in postural control during Functional reach test in patients with diabetic polyneuropathy: A controlled study","authors":"Abdulvahap Kahveci ,&nbsp;Berat Can Cengiz ,&nbsp;Veysel Alcan ,&nbsp;Senih Gürses ,&nbsp;Murat Zinnuroğlu","doi":"10.1016/j.foot.2024.102097","DOIUrl":"https://doi.org/10.1016/j.foot.2024.102097","url":null,"abstract":"<div><h3>Background</h3><p>In patients with diabetic polyneuropathy (DPN), differences in postural control due to losing the lower limb somatosensory information were reported. However, it is still unclear by which mechanisms the dynamic postural instability is caused.</p></div><div><h3>Objectives</h3><p>This study aimed to investigate postural control differences and neuromuscular adaptations resulting from foot somatosensory loss due to DPN.</p></div><div><h3>Methods</h3><p>In this controlled cross-sectional study, fourteen DPN patients and fourteen healthy controls performed the Functional Reach Test (FRT) as a dynamic task. The postural control metrics were simultaneously measured using force plate, motion capture system, and surface electromyography (sEMG). The main metrics including reach length (FR), FR to height ratio (FR/H), displacement of CoM and CoP, moment arm (MA), and arch height ratio. Also, kinematic (range of motion of ankle, knee, and hip joints), and sEMG metrics (latencies and root mean square amplitudes of ankle and hallux muscles) were measured. To compare variables between groups, the independent sample <em>T</em>-test for (normally distributed) and the Mann-Whitney <em>U</em> test (non-normally distributed) were used.</p></div><div><h3>Results</h3><p>The subjects' reach length (FR), FR to height ratio, absolute MA, and displacement of CoM were significantly shorter than controls, while displacement of CoP was not significant. Arch height ratio was found significantly lower in DPN patients. We observed that CoM was lagging CoP in patients (MA = + 0.89) while leading in controls (MA = -1.60). Although, the muscles of patients showed significantly earlier activation, root mean square sEMG amplitudes were found similar. Also, DPN patients showed significantly less hip flexion, knee extension, and ankle plantar flexion.</p></div><div><h3>Conclusions</h3><p>This study presented that decreasing range of motion at lower limbs’ joints and deterioration in foot function caused poor performance at motor execution during FRT in DPN patients.</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"59 ","pages":"Article 102097"},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140549473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distal Rotational Metatarsal Osteotomy (DROMO) for the treatment of hallux valgus associated with first metatarsal pronation: Surgical technique and initial results","authors":"Gustavo Lucar-Lopez ,&nbsp;Dragos Apostu ,&nbsp;Guillem Paz-Ramirez ,&nbsp;Kerbi Alejandro Guevara-Noriega ,&nbsp;Andrés Sierra Pereira ,&nbsp;Manel Ballester-Alomar","doi":"10.1016/j.foot.2024.102086","DOIUrl":"https://doi.org/10.1016/j.foot.2024.102086","url":null,"abstract":"<div><h3>Background</h3><p>Hallux valgus (HV) is a very common deformity worldwide. Most of the surgical techniques used in the treatment of HV only correct these deformities in two planes, that is sagittal and transverse planes. The importance of the first metatarsal pronation as an etiological factor of hallux valgus is validated by numerous authors and it is usually unaddressed. Few surgical techniques have focused on the correction of rotational deformity of the hallux valgus. We aim to first report a detailed technique and a case series using the Distal Rotational Metatarsal Osteotomy (DROMO) surgical technique, which is less invasive and can address the pronation deformation.</p></div><div><h3>Methods</h3><p>The inclusion period was 6 months finishing in April 2021. The study analyzed the following x-ray parameters: preoperative and postoperative intermetatarsal angle (IMA), preoperative and postoperative hallux valgus angle (HVA), preoperative and postoperative coronal rotation of the first metatarsal according Hardy and Clapham’s classification as described by Kim et al., preoperative and postoperative shape of the first metatarsal head as described by Ono et al.</p></div><div><h3>Results</h3><p>33 patients matched our inclusion and exclusion criteria. Most patients underwent the surgery for the left foot (n = 18), compared to the right foot (n = 15). We found statistically significant differences between preoperative and postoperative IMA (p &lt; 0.001), preoperative and postoperative HVA (p &lt; 0.001). Preoperative and postoperative coronal rotation of the first metatarsal as classified by Hardy and Clapham was significantly different (p &lt; 0.001), as well as preoperative and postoperative shape of the first metatarsal head (p &lt; 0.01).</p></div><div><h3>Conclusions</h3><p>DROMO can correct the metatarsal rotation through minimal invasive surgery. From our perspective, DROMO technique should be another alternative for HV correction technique which in time can be associated as a local anesthetic technique, DROMO results are attractive for an ambulatory procedure.</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"59 ","pages":"Article 102086"},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140552768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reliability and measurement error of a maximal voluntary toe plantarflexion measurement process","authors":"Enrico Roma ,&nbsp;Antoine Michel ,&nbsp;Romain Tourillon ,&nbsp;Guillaume Y. Millet ,&nbsp;Jean-Benoît Morin","doi":"10.1016/j.foot.2024.102095","DOIUrl":"https://doi.org/10.1016/j.foot.2024.102095","url":null,"abstract":"<div><p>Despite the growing interest, information regarding the psychometric properties of maximal voluntary isometric toe plantarflexion force and rate of force development (RFD) is lacking. Hence, we investigate the test-retest reliability and measurement error of these outcome measurement instruments measured with a custom-built dynamometer. Twenty-six healthy adults participated in a crossed design with four sessions separated by 5–7 days. RFD was quantified using manual onset and calculating the impulse and the slope in the following time windows: 0–50 ms, 0–100 ms, 0–150 ms, 0–200 ms, 0–250 ms. We estimated the systematic bias of the mean, the intraclass correlation coefficient (ICC) and standard error of measurement (SEM) from the agreement and consistency models. The ICC and the SEM agreement for maximal voluntary isometric toe plantarflexion force along the perpendicular axis were respectively 0.87 (95%CI: 0.76, 0.93) and 27 N (22, 32), while along the resultant of the perpendicular and anterior posterior axis they were 0.85 (0.73, 0.92) and 29 N (23, 35). The results of the consistency model were similar as the estimated variance for session was closer to zero. A systematic bias of the mean between session 1 and 3 was found. For the RFD variables, the ICC agreement ranged from 0.35 to 0.65. The measurement process was found to be reliable to assess maximal voluntary isometric toe plantarflexion force but not RFD. However, a familiarization session is mandatory and these results need to be confirmed in less coordinated (e.g. aging population) individuals.</p></div>","PeriodicalId":12349,"journal":{"name":"Foot","volume":"59 ","pages":"Article 102095"},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0958259224000282/pdfft?md5=e26ac8e3722ed685a93a11514153e8be&pid=1-s2.0-S0958259224000282-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140546331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}