Validity of fascicle length estimation in the vastus lateralis and vastus intermedius using ultrasonography |
| |
| Affiliation: | 1. Graduate School of Education and Human Development, Nagoya University, Japan;2. School of Health Science, Sapporo Medical University, Japan;3. Japan Society for the Promotion of Science, Japan;4. School of Medicine, Sapporo Medical University, Japan;5. Research Center of Health, Physical Fitness & Sports, Nagoya University, Japan;1. Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States;2. Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC, United States;1. Department of Nutrition and Health Sciences, University of Nebraska—Lincoln, Lincoln, Nebraska, USA;2. Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA;1. Biomechanics Laboratory, Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA;2. Department of Mechanical and Nuclear Eng., The Pennsylvania State University, University Park, PA 16802, USA;3. Department of Orthopaedics and Rehabilitation, The Pennsylvania State University, Hershey, PA 17033, USA |
| |
| Abstract: | The purpose of this study was to determine the validity of fascicle length estimation in the vastus lateralis (VL) and vastus intermedius (VI) using ultrasonography. The fascicle lengths of the VL and VI muscles were measured directly (dFL) using calipers, and were estimated (estmFL) using ultrasonography, in 10 legs from five Thiel’s embalmed cadavers. To determine the validity of the estmFLs, FL was estimated using five previously published models and compared with dFL. The intraclass correlation coefficients (ICCs) of two of the five models were > 0.75, indicating that these estimates were valid. Both of these models combined measurement of the length of the visible part of the fascicle with linear extrapolation of the length of the part of the fascicle that was not visible on the sonographic image. The ICCs and absolute% difference were best in models that used appropriate pennation angles. These results suggest that two of the five previously published models are valid for obtaining estmFL of the VL and VI using ultrasonography. |
| |
| Keywords: | Skeletal muscle Fascicle length Ultrasonography Cadaver Vastus intermedius |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
