Smoothness Evaluation Indices during Sit-to-Stand-to-Sit Motions in Healthy Older Females and after Hip Fracture Using an Accelerometer: A Pilot Study
Background: Studies that quantify the quality of sit-to-stand-to-sit (STS) motions, particularly in terms of smoothness, are limited. Thus, this study aimed to investigate the possibility and usefulness of quality evaluation during STS motions. Methods: This cross-sectional study enrolled 36 females...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-10-01
|
| Series: | Geriatrics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2308-3417/8/5/98 |
| _version_ | 1797573765911019520 |
|---|---|
| author | Takeshi Shimamura Hitoshi Ishikawa Hiromi Fujii Hiroshi Katoh |
| author_facet | Takeshi Shimamura Hitoshi Ishikawa Hiromi Fujii Hiroshi Katoh |
| author_sort | Takeshi Shimamura |
| collection | DOAJ |
| description | Background: Studies that quantify the quality of sit-to-stand-to-sit (STS) motions, particularly in terms of smoothness, are limited. Thus, this study aimed to investigate the possibility and usefulness of quality evaluation during STS motions. Methods: This cross-sectional study enrolled 36 females aged >60 years, including 18 females each in the healthy and hip fracture groups. Measurements were performed at two different speeds: five STS as fast as possible (STSF) and two seconds for each motion (STS2s). Indices of smoothness, including harmonic ratio (HR) and power spectrum entropy (PSE), were calculated and compared from the measured data in each of the three axial directions. Results: HR in the vertical direction was significantly higher in the healthy group (STSF: 3.65 ± 1.74, STS2s: 3.42 ± 1.54) than in the hip fracture group (STSF: 2.67 ± 1.01, STS2s: 2.58 ± 0.83) for STSF and STS2s. Furthermore, PSE for all directions and triaxial composites were significantly lower for STS2s (the healthy group (mediolateral (ML): 7.63 ± 0.31, vertical (VT): 7.46 ± 0.22, anterior–posterior (AP): 7.47 ± 0.15, triaxial: 7.45 ± 0.25), the hip fracture group (ML: 7.82 ± 0.16, VT: 7.63 ± 0.16, AP: 7.61 ± 0.17, triaxial: 7.66 ± 0.17)). Conclusions: This study suggests the usefulness of HR and PSE as quality evaluations for STS motions. |
| first_indexed | 2024-03-10T21:13:40Z |
| format | Article |
| id | doaj.art-54817980519d4e6e82be351f1a52b7de |
| institution | Directory Open Access Journal |
| issn | 2308-3417 |
| language | English |
| last_indexed | 2024-03-10T21:13:40Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geriatrics |
| spelling | doaj.art-54817980519d4e6e82be351f1a52b7de2023-11-19T16:36:49ZengMDPI AGGeriatrics2308-34172023-10-01859810.3390/geriatrics8050098Smoothness Evaluation Indices during Sit-to-Stand-to-Sit Motions in Healthy Older Females and after Hip Fracture Using an Accelerometer: A Pilot StudyTakeshi Shimamura0Hitoshi Ishikawa1Hiromi Fujii2Hiroshi Katoh3Department of Rehabilitation, Kumamoto Health Science University, 325 Izumi-machi, Kita-ku, Kumamoto 861-5598, JapanGraduate School of Health Sciences, Yamagata Prefectural University of Health Sciences, 260 Kamiyanagi, Yamagata 990-2212, JapanGraduate School of Health Sciences, Yamagata Prefectural University of Health Sciences, 260 Kamiyanagi, Yamagata 990-2212, JapanGraduate School of Health Sciences, Yamagata Prefectural University of Health Sciences, 260 Kamiyanagi, Yamagata 990-2212, JapanBackground: Studies that quantify the quality of sit-to-stand-to-sit (STS) motions, particularly in terms of smoothness, are limited. Thus, this study aimed to investigate the possibility and usefulness of quality evaluation during STS motions. Methods: This cross-sectional study enrolled 36 females aged >60 years, including 18 females each in the healthy and hip fracture groups. Measurements were performed at two different speeds: five STS as fast as possible (STSF) and two seconds for each motion (STS2s). Indices of smoothness, including harmonic ratio (HR) and power spectrum entropy (PSE), were calculated and compared from the measured data in each of the three axial directions. Results: HR in the vertical direction was significantly higher in the healthy group (STSF: 3.65 ± 1.74, STS2s: 3.42 ± 1.54) than in the hip fracture group (STSF: 2.67 ± 1.01, STS2s: 2.58 ± 0.83) for STSF and STS2s. Furthermore, PSE for all directions and triaxial composites were significantly lower for STS2s (the healthy group (mediolateral (ML): 7.63 ± 0.31, vertical (VT): 7.46 ± 0.22, anterior–posterior (AP): 7.47 ± 0.15, triaxial: 7.45 ± 0.25), the hip fracture group (ML: 7.82 ± 0.16, VT: 7.63 ± 0.16, AP: 7.61 ± 0.17, triaxial: 7.66 ± 0.17)). Conclusions: This study suggests the usefulness of HR and PSE as quality evaluations for STS motions.https://www.mdpi.com/2308-3417/8/5/98sit-to-stand-to-sit motionsmoothnessaccelerometerharmonic ratiopower spectrum entropy |
| spellingShingle | Takeshi Shimamura Hitoshi Ishikawa Hiromi Fujii Hiroshi Katoh Smoothness Evaluation Indices during Sit-to-Stand-to-Sit Motions in Healthy Older Females and after Hip Fracture Using an Accelerometer: A Pilot Study Geriatrics sit-to-stand-to-sit motion smoothness accelerometer harmonic ratio power spectrum entropy |
| title | Smoothness Evaluation Indices during Sit-to-Stand-to-Sit Motions in Healthy Older Females and after Hip Fracture Using an Accelerometer: A Pilot Study |
| title_full | Smoothness Evaluation Indices during Sit-to-Stand-to-Sit Motions in Healthy Older Females and after Hip Fracture Using an Accelerometer: A Pilot Study |
| title_fullStr | Smoothness Evaluation Indices during Sit-to-Stand-to-Sit Motions in Healthy Older Females and after Hip Fracture Using an Accelerometer: A Pilot Study |
| title_full_unstemmed | Smoothness Evaluation Indices during Sit-to-Stand-to-Sit Motions in Healthy Older Females and after Hip Fracture Using an Accelerometer: A Pilot Study |
| title_short | Smoothness Evaluation Indices during Sit-to-Stand-to-Sit Motions in Healthy Older Females and after Hip Fracture Using an Accelerometer: A Pilot Study |
| title_sort | smoothness evaluation indices during sit to stand to sit motions in healthy older females and after hip fracture using an accelerometer a pilot study |
| topic | sit-to-stand-to-sit motion smoothness accelerometer harmonic ratio power spectrum entropy |
| url | https://www.mdpi.com/2308-3417/8/5/98 |
| work_keys_str_mv | AT takeshishimamura smoothnessevaluationindicesduringsittostandtositmotionsinhealthyolderfemalesandafterhipfractureusinganaccelerometerapilotstudy AT hitoshiishikawa smoothnessevaluationindicesduringsittostandtositmotionsinhealthyolderfemalesandafterhipfractureusinganaccelerometerapilotstudy AT hiromifujii smoothnessevaluationindicesduringsittostandtositmotionsinhealthyolderfemalesandafterhipfractureusinganaccelerometerapilotstudy AT hiroshikatoh smoothnessevaluationindicesduringsittostandtositmotionsinhealthyolderfemalesandafterhipfractureusinganaccelerometerapilotstudy |