The Effect of Trunk Sports-Wear on the Position Sense of the Trunk and the Sports Performance
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.22 Vol.22】
【Purpose】To evaluate the effect of wearing an tight trunk sports-wear, we analyzed the effect of wearing the lumbar supporter on the trunk repositioning accuracy (an ability to reproduce the posture which one had been taking) and lifting weights reproducing accuracy (an ability to reproduce the lifting weights which one had lifted).
【Method】Fifteen healthy young male subjects without back pain participated in this study. A lumbar supporter made of jersey (Thermoskin Reconditioning Supporter, - Standard Back Support- / Thermoskin Co. Australia) was used. The errors in repositioning the trunk flexion angle were analyzed using 3-Space Fastrak (Polhemus Inc., Colchester, VT, U.S.A.). The errors in reproducing lifting weights were analyzed using LIDO Lift System (Loredan Biomedical Corp. California, U.S.A.). The errors in repositioning the trunk flexion angle and in reproducing lifting weights were analyzed in two conditions (without lumbar supporter and with lumbar supporter). The mean absolute errors were statistically analyzed between two conditions, using paired t-tests.
【Result】Wearing the lumbar supporter significantly decreased the mean absolute error in repositioning the trunk flexion angle. Wearing the lumbar supporter did not significantly change the mean absolute error in reproducing lifting weights.
【Conclusion】Wearing an lumbar supporter around the trunk augments the capability of repositioning the trunk flexion angle. Therefore, wearing a sports-wear that fits the trunk tightly might contribute to the improvement of the performances in sports activities.
DESCENTE SPORTS SCIENCE Vol.22/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
【Method】Fifteen healthy young male subjects without back pain participated in this study. A lumbar supporter made of jersey (Thermoskin Reconditioning Supporter, - Standard Back Support- / Thermoskin Co. Australia) was used. The errors in repositioning the trunk flexion angle were analyzed using 3-Space Fastrak (Polhemus Inc., Colchester, VT, U.S.A.). The errors in reproducing lifting weights were analyzed using LIDO Lift System (Loredan Biomedical Corp. California, U.S.A.). The errors in repositioning the trunk flexion angle and in reproducing lifting weights were analyzed in two conditions (without lumbar supporter and with lumbar supporter). The mean absolute errors were statistically analyzed between two conditions, using paired t-tests.
【Result】Wearing the lumbar supporter significantly decreased the mean absolute error in repositioning the trunk flexion angle. Wearing the lumbar supporter did not significantly change the mean absolute error in reproducing lifting weights.
【Conclusion】Wearing an lumbar supporter around the trunk augments the capability of repositioning the trunk flexion angle. Therefore, wearing a sports-wear that fits the trunk tightly might contribute to the improvement of the performances in sports activities.
DESCENTE SPORTS SCIENCE Vol.22/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Kei Miyamoto*1, Kazuichiro Onishi*1, Seiichi Sugiyama*1, Kazuhiko Iwasa*2, Kazuto Watanabe*3 |
|---|---|
| University or institution | *1 Department of Orthopaedic Surgery, Gifu University, School of Medicine, *2 Department of Orthopaedic Surgery, Gifu Prefectural Kibogaoka Gakuen, *3 Watanabe Orthopaedic Clinic |
Keywords
lumbar supporter, trunk repositioning, lifting weights, trunk flexion angle