The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform
Ellen M Van Cann - One of the best experts on this subject based on the ideXlab platform.
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donor site morbidity of the radial Forearm free flap versus the ulnar Forearm free flap
Plastic and Reconstructive Surgery, 2013Co-Authors: Dominique D Hekner, J H Abbink, Antoine J W P Rosenberg, R Koole, Ellen M Van CannAbstract:BACKGROUND: Donor-site morbidity following harvest of the radial Forearm free flap was compared with that following harvest of the ulnar Forearm free flap. METHODS: Twenty-eight radial Forearm and 27 ulnar Forearm flaps were harvested in 55 patients with head and neck defects. Pressure perception was measured with Semmes-Weinstein monofilaments. Cold perception was tested with chloroethyl. Donor-site healing was evaluated. Patients were interviewed about grip and pinch strength and donor-site appearance. RESULTS: In the radial Forearm free flap group, pressure perception and cold perception were reduced in the donor hand, whereas in the ulnar group, no differences were observed between the donor and unoperated hands. In the radial Forearm group, 15 percent of patients experienced reduced strength in the donor hand, whereas in the ulnar Forearm group, none of the patients reported reduced strength in the donor hand. In the radial Forearm group, 14 percent had partial or complete loss of the skin graft, whereas in the ulnar Forearm group, 4 percent had partial loss of the skin graft. In the radial Forearm group, 18 percent of patients were dissatisfied with the appearance of the donor site, and no complaints were reported in the ulnar Forearm group. CONCLUSIONS: The authors' study shows less donor site-morbidity following harvest of the ulnar Forearm free flap than following harvest of the radial Forearm free flap. These results emphasize that the ulnar Forearm free flap should be considered as an alternative for the radial Forearm free flap for reconstruction of soft-tissue defects. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.
Kenji Inoue - One of the best experts on this subject based on the ideXlab platform.
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Power assist for lifting motion in sagittal plane by Forearm support-type lift assist system (FOLAS)
2011 11th International Conference on Control Automation and Systems, 2011Co-Authors: Hidetaka Nozawa, Daisuke Watanabe, Kenji InoueAbstract:Lifting a heavy object is regarded as a frequently performed motion that imposes physical strains on workers. The objective of this study is to verify the effectiveness of Forearm support-type lift assist system (FOLAS) for lifting motion in the sagittal plane. The mechanical structure of the FOLAS is largely divided into a Forearm support and a parallel motion arm; the Forearm support has no fixture to tie operator's body and can supports operator's Forearm effectively while the FOLAS assists a lifting motion. The FOLAS is operated based on pneumatic pressure data in air cushions, which are attached on the Forearm support and receive operator's Forearm softly. The Forearm support is mounted on the 2-DOF parallel motion arm, which keeps the Forearm support in a horizontal position during the FOLAS operation. Owing to these characteristics, operators can maneuver the FOLAS intuitively without fixing his/her body on the mechanical structure. A fundamental experiment and an experiment for a lifting motion in the sagittal plane were performed. The experimental resut for the lifting motion showed the muscle activation of an experimental subject was alleviated by the assistance of the FOLAS.
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System design for Forearm support-type lift assist system (FOLAS): An intuitively-operated power assist system without wearing
2010 IEEE SICE International Symposium on System Integration, 2010Co-Authors: Atsushi Ogawa, Kenji InoueAbstract:In labor-intensive fields, lifting a heavy object up and down is regarded as a frequently performed motion which imposes a physical strain on workers, and power assist systems are expected to address such a problem. The objectives of this paper are to introduce system design for Forearm support-type lift assist system (FOLAS) and to verify its basic functionality and usefulness in lifting motion support. The FOLAS mechanical structure is largely divided into the Forearm support and parallel motion arm; The Forearm support can transfer the FOLAS driving force to operator's Forearms to assist lifting motion. The air cushion attached on the Forearm support can indirectly detect interaction force between FOLAS and operator through a pneumatic pressure sensor as well as receive operator's Forearm softly. We adopt the PSDs for load existence detection, and the FOLAS recognizes an operator receives a load when the PSD data indicates less than the preset threshold. The Forearm support is mounted on the 2-DOF parallel motion arm that enables the Forearm support to be maintained in a horizontal position with fewer actuators. Such mechanical characteristics enable the FOLAS to assist lifting motion without wearing, i.e., fixing his/her body on the system, and an operator can maneuver it intuitively feeling a lifted object. Experiments for lifting motion with the FOLAS operation were performed, and we could verify its basic functionality and usefulness.
Jeremy P Loenneke - One of the best experts on this subject based on the ideXlab platform.
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associations between handgrip strength and ultrasound measured muscle thickness of the hand and Forearm in young men and women
Ultrasound in Medicine and Biology, 2015Co-Authors: Brittany R Counts, Brian E Barnett, Scott J Dankel, Jeremy P LoennekeAbstract:It is unknown whether muscle size of intrinsic hand muscles is associated with handgrip strength. To investigate the relationships between handgrip strength and flexor muscle size of the hand and Forearm, muscle thickness (MT) of 86 young adults (43 men and 43 women) between the ages of 18 and 34 y was measured by ultrasound. Two MTs (Forearm radius and Forearm ulna MT) in the anterior Forearm, two MTs (lumbrical and dorsal interosseous MT) in the anterior hand and handgrip strength were measured on the right side. Linear regression with part (also referred to as semipartial) correlation coefficients revealed that Forearm ulna MT positively correlated with handgrip strength in both men (part = 0.379, p = 0.001) and women (part = 0.268, p = 0.002). Dorsal interosseous MT correlated with handgrip strength in women only (part = 0.289, p = 0.001). Our results suggest that the Forearm ulna and dorsal interosseous MTs for women and Forearm ulna MTs for men are factors contributing to prediction of handgrip strength in young adults.
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association between Forearm muscle thickness and age related loss of skeletal muscle mass handgrip and knee extension strength and walking performance in old men and women a pilot study
Ultrasound in Medicine and Biology, 2014Co-Authors: Robert S Thiebaud, Jeremy P Loenneke, Madoka Ogawa, Naotoshi MitsukawaAbstract:Very little information is available concerning the relationship between handgrip strength and muscle size in the upper and lower extremities, especially the Forearm muscle itself. To investigate the relationships among ultrasound-measured Forearm muscle thickness from the radius and ulna bone interface with handgrip strength, knee extension strength, walking speed and absolute/relative total skeletal muscle mass (TMM), 32 Japanese men and 21 Japanese women ages 70-83 years had muscle thickness (MT) measured by ultrasound. In the Forearm, two MTs (Forearm-radius and Forearm-ulna MT) were measured. TMM was estimated from an ultrasound-derived prediction equation. Handgrip-strength was significantly correlated with Forearm-ulna MT in both men and women. There were no significant correlations between Forearm MT and walking speed in either sex. In men, both Forearm-radius and Forearm-ulna MT were significantly correlated with TMM and TMM index. In women, a significant correlation was only observed between Forearm-ulna MT and TMM index. Our results suggest that Forearm-ulna MT may be a useful parameter for evaluating handgrip strength and TMM index in older Japanese men and women. Language: en
Dominique D Hekner - One of the best experts on this subject based on the ideXlab platform.
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donor site morbidity of the radial Forearm free flap versus the ulnar Forearm free flap
Plastic and Reconstructive Surgery, 2013Co-Authors: Dominique D Hekner, J H Abbink, Antoine J W P Rosenberg, R Koole, Ellen M Van CannAbstract:BACKGROUND: Donor-site morbidity following harvest of the radial Forearm free flap was compared with that following harvest of the ulnar Forearm free flap. METHODS: Twenty-eight radial Forearm and 27 ulnar Forearm flaps were harvested in 55 patients with head and neck defects. Pressure perception was measured with Semmes-Weinstein monofilaments. Cold perception was tested with chloroethyl. Donor-site healing was evaluated. Patients were interviewed about grip and pinch strength and donor-site appearance. RESULTS: In the radial Forearm free flap group, pressure perception and cold perception were reduced in the donor hand, whereas in the ulnar group, no differences were observed between the donor and unoperated hands. In the radial Forearm group, 15 percent of patients experienced reduced strength in the donor hand, whereas in the ulnar Forearm group, none of the patients reported reduced strength in the donor hand. In the radial Forearm group, 14 percent had partial or complete loss of the skin graft, whereas in the ulnar Forearm group, 4 percent had partial loss of the skin graft. In the radial Forearm group, 18 percent of patients were dissatisfied with the appearance of the donor site, and no complaints were reported in the ulnar Forearm group. CONCLUSIONS: The authors' study shows less donor site-morbidity following harvest of the ulnar Forearm free flap than following harvest of the radial Forearm free flap. These results emphasize that the ulnar Forearm free flap should be considered as an alternative for the radial Forearm free flap for reconstruction of soft-tissue defects. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.
R Koole - One of the best experts on this subject based on the ideXlab platform.
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donor site morbidity of the radial Forearm free flap versus the ulnar Forearm free flap
Plastic and Reconstructive Surgery, 2013Co-Authors: Dominique D Hekner, J H Abbink, Antoine J W P Rosenberg, R Koole, Ellen M Van CannAbstract:BACKGROUND: Donor-site morbidity following harvest of the radial Forearm free flap was compared with that following harvest of the ulnar Forearm free flap. METHODS: Twenty-eight radial Forearm and 27 ulnar Forearm flaps were harvested in 55 patients with head and neck defects. Pressure perception was measured with Semmes-Weinstein monofilaments. Cold perception was tested with chloroethyl. Donor-site healing was evaluated. Patients were interviewed about grip and pinch strength and donor-site appearance. RESULTS: In the radial Forearm free flap group, pressure perception and cold perception were reduced in the donor hand, whereas in the ulnar group, no differences were observed between the donor and unoperated hands. In the radial Forearm group, 15 percent of patients experienced reduced strength in the donor hand, whereas in the ulnar Forearm group, none of the patients reported reduced strength in the donor hand. In the radial Forearm group, 14 percent had partial or complete loss of the skin graft, whereas in the ulnar Forearm group, 4 percent had partial loss of the skin graft. In the radial Forearm group, 18 percent of patients were dissatisfied with the appearance of the donor site, and no complaints were reported in the ulnar Forearm group. CONCLUSIONS: The authors' study shows less donor site-morbidity following harvest of the ulnar Forearm free flap than following harvest of the radial Forearm free flap. These results emphasize that the ulnar Forearm free flap should be considered as an alternative for the radial Forearm free flap for reconstruction of soft-tissue defects. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.