The Experts below are selected from a list of 133623 Experts worldwide ranked by ideXlab platform
Kaiming Chan - One of the best experts on this subject based on the ideXlab platform.
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a mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
Journal of Biomechanics, 2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs.
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a three pressure sensor 3ps system for monitoring ankle Supination torque during sport motions
Journal of Biomechanics, 2008Co-Authors: Daniel Tikpui Fong, Yueyan Chan, Patrick Shuhang Yung, Kwaiyau Fung, Youlian Hong, Kaiming ChanAbstract:This study presented a three-pressure-sensor (3PS) system for monitoring ankle Supination torque during sport motions. Five male subjects wore a pair of cloth sport shoes and performed 10 trials of walking, running, cutting, vertical jump-landing and stepping-down motions in a random sequence. A pair of pressure insoles (Novel Pedar model W, Germany) was inserted in the shoes for the measurement of plantar pressure at 100 Hz. The ankle joint torque was calculated by a standard lower extremity inverse dynamic calculation procedure with the data obtained by a motion capture system (VICON, UK) and a force plate (AMTI, USA), and was presented in a Supination/pronation plane with an oblique axis of rotation at the ankle joint. Stepwise linear regression analysis suggested that pressure data at three locations beneath the foot were essential for reconstructing the ankle Supination torque. Another group of five male subjects participated in a validation test with the same procedure, but with the pressure insoles replaced by the 3PS system. Estimated ankle Supination torque was calculated from the equation developed by the regression analysis. Results suggested that the correlation between the standard and estimated data was high (R=0.938). The overall root mean square error was 6.91 N m, which was about 6% of the peak values recorded in the five sport motions (113 N m). With the good estimation accuracy, tiny size and inexpensive cost, the 3PS system is readily available to be implanted in sport shoe for the estimation and monitoring of ankle Supination torque during dynamic sport motions.
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Short communication A mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs. r 2008 Elsevier Ltd. All rights reserved.
Patrick Shuhang Yung - One of the best experts on this subject based on the ideXlab platform.
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a mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
Journal of Biomechanics, 2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs.
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a three pressure sensor 3ps system for monitoring ankle Supination torque during sport motions
Journal of Biomechanics, 2008Co-Authors: Daniel Tikpui Fong, Yueyan Chan, Patrick Shuhang Yung, Kwaiyau Fung, Youlian Hong, Kaiming ChanAbstract:This study presented a three-pressure-sensor (3PS) system for monitoring ankle Supination torque during sport motions. Five male subjects wore a pair of cloth sport shoes and performed 10 trials of walking, running, cutting, vertical jump-landing and stepping-down motions in a random sequence. A pair of pressure insoles (Novel Pedar model W, Germany) was inserted in the shoes for the measurement of plantar pressure at 100 Hz. The ankle joint torque was calculated by a standard lower extremity inverse dynamic calculation procedure with the data obtained by a motion capture system (VICON, UK) and a force plate (AMTI, USA), and was presented in a Supination/pronation plane with an oblique axis of rotation at the ankle joint. Stepwise linear regression analysis suggested that pressure data at three locations beneath the foot were essential for reconstructing the ankle Supination torque. Another group of five male subjects participated in a validation test with the same procedure, but with the pressure insoles replaced by the 3PS system. Estimated ankle Supination torque was calculated from the equation developed by the regression analysis. Results suggested that the correlation between the standard and estimated data was high (R=0.938). The overall root mean square error was 6.91 N m, which was about 6% of the peak values recorded in the five sport motions (113 N m). With the good estimation accuracy, tiny size and inexpensive cost, the 3PS system is readily available to be implanted in sport shoe for the estimation and monitoring of ankle Supination torque during dynamic sport motions.
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Short communication A mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs. r 2008 Elsevier Ltd. All rights reserved.
Kwaiyau Fung - One of the best experts on this subject based on the ideXlab platform.
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a mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
Journal of Biomechanics, 2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs.
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a three pressure sensor 3ps system for monitoring ankle Supination torque during sport motions
Journal of Biomechanics, 2008Co-Authors: Daniel Tikpui Fong, Yueyan Chan, Patrick Shuhang Yung, Kwaiyau Fung, Youlian Hong, Kaiming ChanAbstract:This study presented a three-pressure-sensor (3PS) system for monitoring ankle Supination torque during sport motions. Five male subjects wore a pair of cloth sport shoes and performed 10 trials of walking, running, cutting, vertical jump-landing and stepping-down motions in a random sequence. A pair of pressure insoles (Novel Pedar model W, Germany) was inserted in the shoes for the measurement of plantar pressure at 100 Hz. The ankle joint torque was calculated by a standard lower extremity inverse dynamic calculation procedure with the data obtained by a motion capture system (VICON, UK) and a force plate (AMTI, USA), and was presented in a Supination/pronation plane with an oblique axis of rotation at the ankle joint. Stepwise linear regression analysis suggested that pressure data at three locations beneath the foot were essential for reconstructing the ankle Supination torque. Another group of five male subjects participated in a validation test with the same procedure, but with the pressure insoles replaced by the 3PS system. Estimated ankle Supination torque was calculated from the equation developed by the regression analysis. Results suggested that the correlation between the standard and estimated data was high (R=0.938). The overall root mean square error was 6.91 N m, which was about 6% of the peak values recorded in the five sport motions (113 N m). With the good estimation accuracy, tiny size and inexpensive cost, the 3PS system is readily available to be implanted in sport shoe for the estimation and monitoring of ankle Supination torque during dynamic sport motions.
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Short communication A mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs. r 2008 Elsevier Ltd. All rights reserved.
Yueyan Chan - One of the best experts on this subject based on the ideXlab platform.
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a mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
Journal of Biomechanics, 2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs.
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a three pressure sensor 3ps system for monitoring ankle Supination torque during sport motions
Journal of Biomechanics, 2008Co-Authors: Daniel Tikpui Fong, Yueyan Chan, Patrick Shuhang Yung, Kwaiyau Fung, Youlian Hong, Kaiming ChanAbstract:This study presented a three-pressure-sensor (3PS) system for monitoring ankle Supination torque during sport motions. Five male subjects wore a pair of cloth sport shoes and performed 10 trials of walking, running, cutting, vertical jump-landing and stepping-down motions in a random sequence. A pair of pressure insoles (Novel Pedar model W, Germany) was inserted in the shoes for the measurement of plantar pressure at 100 Hz. The ankle joint torque was calculated by a standard lower extremity inverse dynamic calculation procedure with the data obtained by a motion capture system (VICON, UK) and a force plate (AMTI, USA), and was presented in a Supination/pronation plane with an oblique axis of rotation at the ankle joint. Stepwise linear regression analysis suggested that pressure data at three locations beneath the foot were essential for reconstructing the ankle Supination torque. Another group of five male subjects participated in a validation test with the same procedure, but with the pressure insoles replaced by the 3PS system. Estimated ankle Supination torque was calculated from the equation developed by the regression analysis. Results suggested that the correlation between the standard and estimated data was high (R=0.938). The overall root mean square error was 6.91 N m, which was about 6% of the peak values recorded in the five sport motions (113 N m). With the good estimation accuracy, tiny size and inexpensive cost, the 3PS system is readily available to be implanted in sport shoe for the estimation and monitoring of ankle Supination torque during dynamic sport motions.
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Short communication A mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs. r 2008 Elsevier Ltd. All rights reserved.
Daniel Tikpui Fong - One of the best experts on this subject based on the ideXlab platform.
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a mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
Journal of Biomechanics, 2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs.
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a three pressure sensor 3ps system for monitoring ankle Supination torque during sport motions
Journal of Biomechanics, 2008Co-Authors: Daniel Tikpui Fong, Yueyan Chan, Patrick Shuhang Yung, Kwaiyau Fung, Youlian Hong, Kaiming ChanAbstract:This study presented a three-pressure-sensor (3PS) system for monitoring ankle Supination torque during sport motions. Five male subjects wore a pair of cloth sport shoes and performed 10 trials of walking, running, cutting, vertical jump-landing and stepping-down motions in a random sequence. A pair of pressure insoles (Novel Pedar model W, Germany) was inserted in the shoes for the measurement of plantar pressure at 100 Hz. The ankle joint torque was calculated by a standard lower extremity inverse dynamic calculation procedure with the data obtained by a motion capture system (VICON, UK) and a force plate (AMTI, USA), and was presented in a Supination/pronation plane with an oblique axis of rotation at the ankle joint. Stepwise linear regression analysis suggested that pressure data at three locations beneath the foot were essential for reconstructing the ankle Supination torque. Another group of five male subjects participated in a validation test with the same procedure, but with the pressure insoles replaced by the 3PS system. Estimated ankle Supination torque was calculated from the equation developed by the regression analysis. Results suggested that the correlation between the standard and estimated data was high (R=0.938). The overall root mean square error was 6.91 N m, which was about 6% of the peak values recorded in the five sport motions (113 N m). With the good estimation accuracy, tiny size and inexpensive cost, the 3PS system is readily available to be implanted in sport shoe for the estimation and monitoring of ankle Supination torque during dynamic sport motions.
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Short communication A mechanical Supination sprain simulator for studying ankle Supination sprain kinematics
2008Co-Authors: Yueyan Chan, Daniel Tikpui Fong, Patrick Shuhang Yung, Kwaiyau Fung, Kaiming ChanAbstract:This study presents a free-fall mechanical Supination sprain simulator for evaluating the ankle joint kinematics during a simulated ankle Supination sprain injury. The device allows the foot to be in an anatomical position before the sudden motion, and also allows different degrees of Supination, or a combination of inversion and plantarflexion. Five subjects performed simulated Supination sprain trials in five different Supination angles. Ankle motion was captured by a motion analysis system, and the ankle kinematics were reported in plantarflexion/dorsiflexion, inversion/eversion and internal/external rotation planes. Results showed that all sprain motions were not pure single-plane motions but were accompanied by motion in other two planes, therefore, different degrees of Supination were achieved. The presented sprain simulator allows a more comprehensive study of the kinematics of ankle sprain when compared with some previous laboratory research designs. r 2008 Elsevier Ltd. All rights reserved.
