Functional assessments of foot strength: a comparative and repeatability study
| Autor: | Drew H. Ferguson, Sarah T. Ridge, Kirk E. Bassett, A. Wayne Johnson, Mark T. Olsen, Dallin W. Griffin, Dustin A. Bruening, Julia L. Jacobs |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Male medicine.medical_specialty lcsh:Diseases of the musculoskeletal system Sports medicine medicine.medical_treatment Electromyography Muscle Strength Dynamometer Toe Joint Extrinsic foot muscles 03 medical and health sciences Young Adult 0302 clinical medicine Physical medicine and rehabilitation Rheumatology Intrinsic foot muscles medicine Humans Orthopedics and Sports Medicine Muscle Strength Toe flexion Functional movement Reliability (statistics) 030222 orthopedics Rehabilitation Dynamometer medicine.diagnostic_test business.industry Foot Reproducibility of Results 030229 sport sciences Repeatability Healthy Volunteers body regions Short foot exercise Technical Advance Female Doming lcsh:RC925-935 business Foot (unit) |
| Zdroj: | BMC Musculoskeletal Disorders BMC Musculoskeletal Disorders, Vol 20, Iss 1, Pp 1-9 (2019) |
| ISSN: | 1471-2474 |
| Popis: | Background Evaluating the strength of the small muscles of the foot may be useful in a variety of clinical applications but is challenging from a methodology standpoint. Previous efforts have focused primarily on the functional movement of toe flexion, but clear methodology guidelines are lacking. A novel foot doming test has also been proposed, but not fully evaluated. The purposes of the present study were to assess the repeatability and comparability of several functional foot strength assessment techniques. Methods Forty healthy volunteers were evaluated across two testing days, with a two-week doming motion practice period between them. Seven different measurements were taken using a custom toe flexion dynamometer (seated), custom doming dynamometer (standing), and a pressure mat (standing). Measurements from the doming dynamometer were evaluated for reliability (ICCs) and a learning effect (paired t-tests), while measurements from the toe flexion dynamometer and pressure mat were evaluated for reliability and comparability (correlations). Electromyography was also used to descriptively assess the extent of muscle isolation in all measurements. Results Doming showed excellent within-session reliability (ICCs > 0.944), but a clear learning effect was present, with strength (p 0.945). Seated toe flexion tests using the dynamometer were moderately correlated to standing toe flexion tests on a pressure mat (r > 0.54); however, there were some differences in muscle activity. The former may better isolate the toe flexors, while the latter appeared to be more functional for many pathologies. On the pressure mat, reciprocal motion appeared to display slightly greater forces and reliability than isolated toe flexion. Conclusions This study further refines potential methodology for foot strength testing. These devices and protocols can be duplicated in the clinic to evaluate and monitor rehabilitation progress in clinical populations associated with foot muscle weakness. |
| Databáze: | OpenAIRE |
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