The Experts below are selected from a list of 34083 Experts worldwide ranked by ideXlab platform
Sandy Kirkley - One of the best experts on this subject based on the ideXlab platform.
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effect of a neoprene sleeve on knee joint position sense during sitting open Kinetic Chain and supine closed Kinetic Chain tests
American Journal of Sports Medicine, 1998Co-Authors: Trevor B Birmingham, John F Kramer, Tim J Inglis, Colleen A Mooney, Lisa J Murray, Peter J Fowler, Sandy KirkleyAbstract:The primary objective of the present study was to compare the effect of a neoprene sleeve on knee joint position sense during a sitting open Kinetic Chain test and a supine closed Kinetic Chain test. Young (24 2 years old), healthy subjects (18 men and 18 women) performed knee joint angle replication tests during open Kinetic Chain knee extension (sitting) and closed Kinetic Chain leg press (supine with an axial load of 15% body weight) before and after application of a neoprene sleeve over the dominant knee. The improvement in ability to replicate joint angles after application of the sleeve (sleeve effect) was significantly less during the supine closed Kinetic Chain test (0.3° 1.4°) than during the sitting open Kinetic Chain test (1.2° 1.1°). The sleeve effect was inversely related to subjects' performance without the sleeve during both the sitting open Kinetic Chain and supine closed Kinetic Chain tests, suggesting that some people may derive greater benefit from the sleeve than others. Although the s...
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effect of a neoprene sleeve on knee joint position sense during sitting open Kinetic Chain and supine closed Kinetic Chain tests
American Journal of Sports Medicine, 1998Co-Authors: Trevor B Birmingham, John F Kramer, Colleen A Mooney, Lisa J Murray, Peter J Fowler, J T Inglis, Sandy KirkleyAbstract:The primary objective of the present study was to compare the effect of a neoprene sleeve on knee joint position sense during a sitting open Kinetic Chain test and a supine closed Kinetic Chain test. Young (24 +/- 2 years old), healthy subjects (18 men and 18 women) performed knee joint angle replication tests during open Kinetic Chain knee extension (sitting) and closed Kinetic Chain leg press (supine with an axial load of 15% body weight) before and after application of a neoprene sleeve over the dominant knee. The improvement in ability to replicate joint angles after application of the sleeve (sleeve effect) was significantly less during the supine closed Kinetic Chain test (0.3 degree +/- 1.4 degrees) than during the sitting open Kinetic Chain test (1.2 degrees +/- 1.1 degrees). The sleeve effect was inversely related to subjects' performance without the sleeve during both the sitting open Kinetic Chain and supine closed Kinetic Chain tests, suggesting that some people may derive greater benefit from the sleeve than others. Although the sleeve effects were small, particularly during the supine closed Kinetic Chain test, 72% of subjects felt that the sleeve improved their overall test performance. Future research is needed to establish the functional relevance of the small sleeve effects observed and to identify the characteristics of people who might derive greatest benefit from sleeve use.
Trevor B Birmingham - One of the best experts on this subject based on the ideXlab platform.
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effect of a neoprene sleeve on knee joint position sense during sitting open Kinetic Chain and supine closed Kinetic Chain tests
American Journal of Sports Medicine, 1998Co-Authors: Trevor B Birmingham, John F Kramer, Tim J Inglis, Colleen A Mooney, Lisa J Murray, Peter J Fowler, Sandy KirkleyAbstract:The primary objective of the present study was to compare the effect of a neoprene sleeve on knee joint position sense during a sitting open Kinetic Chain test and a supine closed Kinetic Chain test. Young (24 2 years old), healthy subjects (18 men and 18 women) performed knee joint angle replication tests during open Kinetic Chain knee extension (sitting) and closed Kinetic Chain leg press (supine with an axial load of 15% body weight) before and after application of a neoprene sleeve over the dominant knee. The improvement in ability to replicate joint angles after application of the sleeve (sleeve effect) was significantly less during the supine closed Kinetic Chain test (0.3° 1.4°) than during the sitting open Kinetic Chain test (1.2° 1.1°). The sleeve effect was inversely related to subjects' performance without the sleeve during both the sitting open Kinetic Chain and supine closed Kinetic Chain tests, suggesting that some people may derive greater benefit from the sleeve than others. Although the s...
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effect of a neoprene sleeve on knee joint position sense during sitting open Kinetic Chain and supine closed Kinetic Chain tests
American Journal of Sports Medicine, 1998Co-Authors: Trevor B Birmingham, John F Kramer, Colleen A Mooney, Lisa J Murray, Peter J Fowler, J T Inglis, Sandy KirkleyAbstract:The primary objective of the present study was to compare the effect of a neoprene sleeve on knee joint position sense during a sitting open Kinetic Chain test and a supine closed Kinetic Chain test. Young (24 +/- 2 years old), healthy subjects (18 men and 18 women) performed knee joint angle replication tests during open Kinetic Chain knee extension (sitting) and closed Kinetic Chain leg press (supine with an axial load of 15% body weight) before and after application of a neoprene sleeve over the dominant knee. The improvement in ability to replicate joint angles after application of the sleeve (sleeve effect) was significantly less during the supine closed Kinetic Chain test (0.3 degree +/- 1.4 degrees) than during the sitting open Kinetic Chain test (1.2 degrees +/- 1.1 degrees). The sleeve effect was inversely related to subjects' performance without the sleeve during both the sitting open Kinetic Chain and supine closed Kinetic Chain tests, suggesting that some people may derive greater benefit from the sleeve than others. Although the sleeve effects were small, particularly during the supine closed Kinetic Chain test, 72% of subjects felt that the sleeve improved their overall test performance. Future research is needed to establish the functional relevance of the small sleeve effects observed and to identify the characteristics of people who might derive greatest benefit from sleeve use.
Gary L Shum - One of the best experts on this subject based on the ideXlab platform.
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the effect of closed Kinetic Chain exercises and open Kinetic Chain exercise on the muscle activity of vastus medialis oblique and vastus lateralis
Journal of Strength and Conditioning Research, 2010Co-Authors: Sian E Irish, Adam J Millward, James Wride, Bernhard Haas, Gary L ShumAbstract:Patellofemoral pain syndrome (PFPS) is one of the most prevalent musculoskeletal conditions of the lower limb. The muscle imbalance between the vastus medialis oblique (VMO) and vastus lateralis (VL) muscles is one of the main factors leading to the development of PFPS. The disparity in research and the necessity to add to the existing literature base led to the development of this study. The aim of this study was to investigate the effect of 2 closed Kinetic Chain exercises and 1 open Kinetic Chain exercise on VMO and VL muscle activity. Twenty-two healthy asymptomatic individuals participated in this study. The surface electromyography (EMG) of VMO and VL was measured and used to calculate the VMO:VL ratio during 3 different quadriceps-strengthening exercises (a double leg squat with isometric hip adduction exercise, an open Kinetic Chain knee extension exercise, and a lunge exercise). The double leg squat with isometric hip adduction exercise was shown to produce a significantly greater VMO:VL ratio (1.14:1) than the other 2 exercises (p = 0.015 and p = 0.005). The open Kinetic Chain knee extension exercises produced significantly greater activation of VL than the lunge exercise (p = 0.001 and p = 0.036). The lunge exercise produced the VMO:VL ratio (1.18:1) closest to the idealized ratio of 1:1. Potential clinical recommendations can be made proposing the lunge exercise as a key tool in early rehabilitation when restoring preferential VMO:VL ratio is essential. The double leg squat with isometric hip adduction exercise would be useful in maintaining correct patella tracking and selectively strengthening VMO.
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the effect of closed Kinetic Chain exercises and open Kinetic Chain exercise on the muscle activity of vastus medialis oblique and vastus lateralis
Journal of Strength and Conditioning Research, 2010Co-Authors: Sian E Irish, Adam J Millward, James Wride, Bernhard Haas, Gary L ShumAbstract:Patellofemoral pain syndrome (PFPS) is one of the most prevalent musculoskeletal conditions of the lower limb. The muscle imbalance between the vastus medialis oblique (VMO) and vastus lateralis (VL) muscles is one of the main factors leading to the development of PFPS. The disparity in research and the necessity to add to the existing literature base led to the development of this study. The aim of this study was to investigate the effect of 2 closed Kinetic Chain exercises and 1 open Kinetic Chain exercise on VMO and VL muscle activity. Twenty-two healthy asymptomatic individuals participated in this study. The surface electromyography (EMG) of VMO and VL was measured and used to calculate the VMO:VL ratio during 3 different quadriceps-strengthening exercises (a double leg squat with isometric hip adduction exercise, an open Kinetic Chain knee extension exercise, and a lunge exercise). The double leg squat with isometric hip adduction exercise was shown to produce a significantly greater VMO:VL ratio (1.14:1) than the other 2 exercises (p = 0.015 and p = 0.005). The open Kinetic Chain knee extension exercises produced significantly greater activation of VL than the lunge exercise (p = 0.001 and p = 0.036). The lunge exercise produced the VMO:VL ratio (1.18:1) closest to the idealized ratio of 1:1. Potential clinical recommendations can be made proposing the lunge exercise as a key tool in early rehabilitation when restoring preferential VMO:VL ratio is essential. The double leg squat with isometric hip adduction exercise would be useful in maintaining correct patella tracking and selectively strengthening VMO.
Peter J Fowler - One of the best experts on this subject based on the ideXlab platform.
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effect of a neoprene sleeve on knee joint position sense during sitting open Kinetic Chain and supine closed Kinetic Chain tests
American Journal of Sports Medicine, 1998Co-Authors: Trevor B Birmingham, John F Kramer, Tim J Inglis, Colleen A Mooney, Lisa J Murray, Peter J Fowler, Sandy KirkleyAbstract:The primary objective of the present study was to compare the effect of a neoprene sleeve on knee joint position sense during a sitting open Kinetic Chain test and a supine closed Kinetic Chain test. Young (24 2 years old), healthy subjects (18 men and 18 women) performed knee joint angle replication tests during open Kinetic Chain knee extension (sitting) and closed Kinetic Chain leg press (supine with an axial load of 15% body weight) before and after application of a neoprene sleeve over the dominant knee. The improvement in ability to replicate joint angles after application of the sleeve (sleeve effect) was significantly less during the supine closed Kinetic Chain test (0.3° 1.4°) than during the sitting open Kinetic Chain test (1.2° 1.1°). The sleeve effect was inversely related to subjects' performance without the sleeve during both the sitting open Kinetic Chain and supine closed Kinetic Chain tests, suggesting that some people may derive greater benefit from the sleeve than others. Although the s...
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effect of a neoprene sleeve on knee joint position sense during sitting open Kinetic Chain and supine closed Kinetic Chain tests
American Journal of Sports Medicine, 1998Co-Authors: Trevor B Birmingham, John F Kramer, Colleen A Mooney, Lisa J Murray, Peter J Fowler, J T Inglis, Sandy KirkleyAbstract:The primary objective of the present study was to compare the effect of a neoprene sleeve on knee joint position sense during a sitting open Kinetic Chain test and a supine closed Kinetic Chain test. Young (24 +/- 2 years old), healthy subjects (18 men and 18 women) performed knee joint angle replication tests during open Kinetic Chain knee extension (sitting) and closed Kinetic Chain leg press (supine with an axial load of 15% body weight) before and after application of a neoprene sleeve over the dominant knee. The improvement in ability to replicate joint angles after application of the sleeve (sleeve effect) was significantly less during the supine closed Kinetic Chain test (0.3 degree +/- 1.4 degrees) than during the sitting open Kinetic Chain test (1.2 degrees +/- 1.1 degrees). The sleeve effect was inversely related to subjects' performance without the sleeve during both the sitting open Kinetic Chain and supine closed Kinetic Chain tests, suggesting that some people may derive greater benefit from the sleeve than others. Although the sleeve effects were small, particularly during the supine closed Kinetic Chain test, 72% of subjects felt that the sleeve improved their overall test performance. Future research is needed to establish the functional relevance of the small sleeve effects observed and to identify the characteristics of people who might derive greatest benefit from sleeve use.
Lisa J Murray - One of the best experts on this subject based on the ideXlab platform.
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effect of a neoprene sleeve on knee joint position sense during sitting open Kinetic Chain and supine closed Kinetic Chain tests
American Journal of Sports Medicine, 1998Co-Authors: Trevor B Birmingham, John F Kramer, Tim J Inglis, Colleen A Mooney, Lisa J Murray, Peter J Fowler, Sandy KirkleyAbstract:The primary objective of the present study was to compare the effect of a neoprene sleeve on knee joint position sense during a sitting open Kinetic Chain test and a supine closed Kinetic Chain test. Young (24 2 years old), healthy subjects (18 men and 18 women) performed knee joint angle replication tests during open Kinetic Chain knee extension (sitting) and closed Kinetic Chain leg press (supine with an axial load of 15% body weight) before and after application of a neoprene sleeve over the dominant knee. The improvement in ability to replicate joint angles after application of the sleeve (sleeve effect) was significantly less during the supine closed Kinetic Chain test (0.3° 1.4°) than during the sitting open Kinetic Chain test (1.2° 1.1°). The sleeve effect was inversely related to subjects' performance without the sleeve during both the sitting open Kinetic Chain and supine closed Kinetic Chain tests, suggesting that some people may derive greater benefit from the sleeve than others. Although the s...
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effect of a neoprene sleeve on knee joint position sense during sitting open Kinetic Chain and supine closed Kinetic Chain tests
American Journal of Sports Medicine, 1998Co-Authors: Trevor B Birmingham, John F Kramer, Colleen A Mooney, Lisa J Murray, Peter J Fowler, J T Inglis, Sandy KirkleyAbstract:The primary objective of the present study was to compare the effect of a neoprene sleeve on knee joint position sense during a sitting open Kinetic Chain test and a supine closed Kinetic Chain test. Young (24 +/- 2 years old), healthy subjects (18 men and 18 women) performed knee joint angle replication tests during open Kinetic Chain knee extension (sitting) and closed Kinetic Chain leg press (supine with an axial load of 15% body weight) before and after application of a neoprene sleeve over the dominant knee. The improvement in ability to replicate joint angles after application of the sleeve (sleeve effect) was significantly less during the supine closed Kinetic Chain test (0.3 degree +/- 1.4 degrees) than during the sitting open Kinetic Chain test (1.2 degrees +/- 1.1 degrees). The sleeve effect was inversely related to subjects' performance without the sleeve during both the sitting open Kinetic Chain and supine closed Kinetic Chain tests, suggesting that some people may derive greater benefit from the sleeve than others. Although the sleeve effects were small, particularly during the supine closed Kinetic Chain test, 72% of subjects felt that the sleeve improved their overall test performance. Future research is needed to establish the functional relevance of the small sleeve effects observed and to identify the characteristics of people who might derive greatest benefit from sleeve use.
