| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Toyooka, Seikai Tsukada, Keisuke Yasui, Youich Saho, Yasuaki Okawa, Yasuaki Ando, Shuji Nakagawa, Takumi Kawano, Hirotaka Miyamoto, Wataru |
| Abstract | Background The effect of medial arch support foot orthoses on kinematics and kinetics of the knee joint has remained unknown. Methods Sixteen female collegiate-level athletes volunteered to participate. Participants were asked to perform a 30° sidestep cut using orthoses of 3 different medial arch heights, comprising of the following: (1) “low,” a full flat foot orthosis without arch support, (2) “mid,” a commercially available foot orthosis with general height arch support, and (3) “high,” a foot orthosis with double the commercially available height for arch support to observe the effect on the knee when overcorrected. Kinematics and kinetics of the knee joint were collected by a markerless motion capture system with 2 force plates and compared between orthosis types using linear regression analysis, assuming a correlation between the measurements of the same cases in the error term. Results The knee valgus angle at initial contact was 2.3 ± 5.2 degrees for “low” medial arch support height, 2.1 ± 5.8 degrees for “mid,” and 0.4 ± 6.6 degrees for “high”. Increased arch support height significantly decreased the knee valgus angle at initial contact (p = 0.002). Other kinematic and kinetic measurements did not differ between groups. Conclusions The valgus angle of the knee at initial contact was decreased by the height of the medial arch support provided by foot orthosis during cutting manoeuvres. Increasing the arch support height may decrease knee valgus angle at initial contact. Medial arch support of foot orthosis may be effective in risk reduction of ACL injury. Clinical trial registration numbers and date of registration: UMIN000046071, 15/11/2021. |
| Related Links | https://bmcsportsscimedrehabil.biomedcentral.com/counter/pdf/10.1186/s13102-022-00608-w.pdf |
| Ending Page | 9 |
| Page Count | 9 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 20521847 |
| DOI | 10.1186/s13102-022-00608-w |
| Journal | BMC Sports Science, Medicine and Rehabilitation |
| Issue Number | 1 |
| Volume Number | 14 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2022-12-19 |
| Access Restriction | Open |
| Subject Keyword | BMC Sports Science Medicine and Rehabilitation Sports Medicine Orthopedics Rehabilitation Medicine Foot orthosis Medial arch support Knee valgus angle Cutting manoeuvres |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physical Therapy, Sports Therapy and Rehabilitation Rehabilitation Orthopedics and Sports Medicine |
| Journal Impact Factor | 2.1/2023 |
| 5-Year Journal Impact Factor | 2.3/2023 |
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