Sport Sciences Research Institute Studies in Sport Medicine 2322-1658 11 25 2019 04 21 The effect of fatigue caused by consecutive jump- landing on plantar pressure characteristics during stance phase of walking in adolescent volleyball players with and without sprain ankle injury The effect of fatigue caused by consecutive jump- landing on plantar pressure characteristics during stance phase of walking in adolescent volleyball players with and without sprain ankle injury 207 222 1985 10.22089/smj.2020.7292.1367 FA Amin Farzami PHD student of physical education and sport science in Sport Biomechanics, Islamic Azad University, Central Tehran Branch, Tehran, Iran 0000-0001-7176-8517 Heydar Sadeghi Professor, Faculty of Physical Education and Sport Sciences, University of Kharazmi, Tehran, Iran 0000-0001-6563-9882 Ali Fattahi Assistant Professor, Faculty of Physical Education and Sport Sciences, Central Tehran Branch, Tehran, Iran 0000-0002-8863-4061 Journal Article 2019 08 10 The purpose of this study was to determine the effect of fatigue caused by jump- landing on plantar pressure characteristics during stance phase of gait. 24 adolescent volleyball players with and without a history of ankle sprain injury participated. Maximum Sole Foot Pressure characteristics during stance phase of gait were collected and analyzed by a Pedo Scan device correlating to Formetric before and after the fatigue protocol. No significant difference seen between plantar pressure characteristics of players without a history of unilateral ankle injury, while there was a significant difference in between players with a history of unilateral ankle injury between average pressure on injured ankle and maximum pressure, step duration and the plantar contact area on non-injured ankle. Due to results, it seems fatigue from consecutive jumping and landing protocol in the group with a history of unilateral ankle injuries can increase risk of lower limb injurie in gait. The purpose of this study was to determine the effect of fatigue caused by jump- landing on plantar pressure characteristics during stance phase of gait. 24 adolescent volleyball players with and without a history of ankle sprain injury participated. Maximum Sole Foot Pressure characteristics during stance phase of gait were collected and analyzed by a Pedo Scan device correlating to Formetric before and after the fatigue protocol. No significant difference seen between plantar pressure characteristics of players without a history of unilateral ankle injury, while there was a significant difference in between players with a history of unilateral ankle injury between average pressure on injured ankle and maximum pressure, step duration and the plantar contact area on non-injured ankle. Due to results, it seems fatigue from consecutive jumping and landing protocol in the group with a history of unilateral ankle injuries can increase risk of lower limb injurie in gait. https://smj.ssrc.ac.ir/article_1985_1f36c15d6a3d18d52e8d493bc8187cb9.pdf