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VARIABILITY OF HIP AND KNEE ANGLES DURING A-30 MINUTE RUN IN HEALTHY RUNNERS |
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| รหัสดีโอไอ | |
| Creator | Weerawat LIMROONGREUNGRAT |
| Title | VARIABILITY OF HIP AND KNEE ANGLES DURING A-30 MINUTE RUN IN HEALTHY RUNNERS |
| Contributor | Parunchaya JAMKRAJANG, Chris MAWHINNEY |
| Publisher | The Sports Science Society of Thailand (SSST) |
| Publication Year | 2563 |
| Journal Title | Journal of Sports Science and Technology |
| Journal Vol. | 20 |
| Journal No. | 2 |
| Page no. | 29-39 |
| Keyword | Lower limbs, Variability, Running, Treadmill |
| URL Website | https://he01.tci-thaijo.org/index.php/JSST/index |
| Website title | Journal of Sports Science and Technology |
| ISSN | 1513-7201;2672-927X |
| Abstract | Running is a popular activity, which is considered to be good for health,yet it may induce overuse injuriesdue to the repeated nature of the task. Thus, runner should avoid an overuse that could cause an injury. Movement variability oflower extremity is one of an interesting variable, however, the study of variability (hip and knee joint angle) during a 30-minute run has not been investigated in Thailand. Therefore, the aim of this study was to examine lower extremity variability during treadmill running over different durations. Seven healthy runners,consisting of five males and two females(age33.6±12.5 yrs; weight64.0±8.2 kg, height171.3±7.9cm;VO2max46.9±5.3mL∙kg-1∙min-1) ran on a treadmill at an individual running speed equivalent to 70% VO2max (7.3±1.3 km/hr). Retroreflective markers were placed on anatomical landmarks. 3-D kinematic data of right lower extremity during running were recorded using 10 cameras at100-Hz. The running motion during the 1stand 30thminute of running consisted of 8 consecutive running cycles were selected and analyzed. Paired t-test showed a significant difference of hip angle between the 1st and 30th minute at initial contact. Furthermore, this study found the extent of variability in hip and knee joint angles at initial contact for between-participant. However, there were small changes in the coefficient of variation within-participant. The reduction inmovement variability when running for 30 minutes may due to the absenceof fatigue or the runners getting into their rhythms. |
