The Experts below are selected from a list of 2538 Experts worldwide ranked by ideXlab platform

Ohyun Kwon - One of the best experts on this subject based on the ideXlab platform.

  • effect of the pelvic compression belt on the Hip extensor activation patterns of sacroiliac joint pain patients during one leg standing a pilot study
    Manual Therapy, 2013
    Co-Authors: Heeseok Jung, Hyeseon Jeon, Ohyun Kwon
    Abstract:

    As a means of external stabilization of the sacroiliac joint (SIJ), many clinicians have often advocated the use of the pelvic compression belt (PCB). The objective of this pilot study was to compare the effects of the PCB on Hip extensor muscle activation patterns during one-leg standing in subjects with and without sacroiliac joint pain (SIJP). Sixteen subjects with SIJP and fifteen asymptomatic volunteers participated in this study. Surface electromyography (EMG) data [signal amplitude and premotor reaction time (RT)] were collected from the gluteus maximus and biceps femoris muscles of the supporting leg during one-leg standing with and without the PCB. Compared to that of the asymptomatic individuals, the EMG amplitude of the biceps femoris was significantly decreased in individuals with SIJP upon the application of the PCB (p < 0.05). Furthermore, on using the PCB, in individuals with SIJP, the RT of the gluteus maximus was significantly decreased; however, the RT of the biceps femoris was increased (p < 0.05). Thus, our data support the use of the PCB to modify the activation patterns of the Hip Extensors among patients with SIJP.

  • effect of the pelvic compression belt on the Hip extensor activation patterns of sacroiliac joint pain patients during one leg standing a pilot study
    Manual Therapy, 2013
    Co-Authors: Heeseok Jung, Hyeseon Jeon, Duckwon Oh, Ohyun Kwon
    Abstract:

    Abstract As a means of external stabilization of the sacroiliac joint (SIJ), many clinicians have often advocated the use of the pelvic compression belt (PCB). The objective of this pilot study was to compare the effects of the PCB on Hip extensor muscle activation patterns during one-leg standing in subjects with and without sacroiliac joint pain (SIJP). Sixteen subjects with SIJP and fifteen asymptomatic volunteers participated in this study. Surface electromyography (EMG) data [signal amplitude and premotor reaction time (RT)] were collected from the gluteus maximus and biceps femoris muscles of the supporting leg during one-leg standing with and without the PCB. Compared to that of the asymptomatic individuals, the EMG amplitude of the biceps femoris was significantly decreased in individuals with SIJP upon the application of the PCB ( p p Thus, our data support the use of the PCB to modify the activation patterns of the Hip Extensors among patients with SIJP.

  • Effects of Performing an Abdominal Drawing-in Maneuver During Prone Hip Extension Exercises on Hip and Back Extensor Muscle Activity and Amount of Anterior Pelvic Tilt
    Journal of Orthopaedic & Sports Physical Therapy, 2007
    Co-Authors: Heon-seock Cynn, Jong-hyuk Won, Ohyun Kwon
    Abstract:

    Study Design Comparative, repeated-measures study. Objectives To examine the effects of an abdominal drawing-in maneuver (ADIM) using a pressure biofeedback unit on electromyographic (EMG) signal amplitude of the Hip and back Extensors, and the angle of anterior pelvic tilt during Hip extension in the prone position. Background Prone Hip extension is a commonly used position for testing Hip Extensors strength and performing Hip extension exercises.Performing an ADIM during Hip extension exercise in prone may reduce the activity of erector spinae and angle of anterior pelvic tilt and increase the activity of Hip Extensors. Methods Twenty ablebodied volunteers (10 male, 10 female), aged 19 to 26 years (mean ± SD, 22.3 ± 3.4 years), were recruited for this study. The EMG signal amplitude and angle of anterior pelvic tilt were measured during prone Hip extension with and without performing an ADIM. Surface EMG signal was recorded from the erector spinae, gluteus maximus, and medial hamstrings. Kinematic data ...

Scott F Nadler - One of the best experts on this subject based on the ideXlab platform.

  • the intra and interrater reliability of Hip muscle strength assessments using a handheld versus a portable dynamometer anchoring station
    Archives of Physical Medicine and Rehabilitation, 2004
    Co-Authors: David A Scott, Quin Bond, Sue Ann Sisto, Scott F Nadler
    Abstract:

    Abstract Scott DA, Bond EQ, Sisto SA, Nadler SF. The intra- and interrater reliability of Hip muscle strength assessments using a handheld versus a portable dynamometer anchoring station. Arch Phys Med Rehabil 2004;85:598–603. Objective To compare the inter- and intrarater reliability of a portable dynamometer anchoring station (DAS) to a handheld dynamometer (HHD). Design Repeated-measures design. Setting Human performance and movement analysis laboratory. Participants Fifteen healthy participants, ages 23 to 44 years. Interventions Not applicable. Main outcome measures Three consecutive measures of peak bilateral isometric strength were obtained for Hip abduction, extension, and flexion by 2 investigators by using the DAS and the HHD after a 1-hour rest period. This testing scenario was repeated 1 week later. Intraclass correlation coefficients (ICCs) were used to determine reliability. Results Interrater ICCs of average peak strength ranged from .84 to .92 (Hip flexors), .69 to .88 (Hip abductors), and .56 to .80 (Hip Extensors). Intrarater ICCs ranged from .59 to .89 for tester A and from .72 to .89 for tester B using the DAS, and from .67 to .81 for the HHD across muscle groups. Conclusions The DAS showed good intrarater reliability for Hip flexion and abduction, whereas the HHD demonstrated higher reliability for Hip extension. The results support the use of dynamometers that are quick and reliable and that reduce tester bias during Hip strength assessment.

  • portable dynamometer anchoring station for measuring strength of the Hip Extensors and abductors
    Archives of Physical Medicine and Rehabilitation, 2000
    Co-Authors: Scott F Nadler, Melissa Deprince, Norman Hauesien, Gerard A Malanga, Todd P Stitik, Eric Price
    Abstract:

    Abstract Nadler SF, DePrince ML, Hauesien N, Malanga GA, Stitik TP, Price E. Portable dynamometer anchoring station for measuring strength of the Hip Extensors and abductors. Arch Phys Med Rehabil 2000;81:1072-6. Objective: To assess the reliability of a specially designed dynamometer anchoring station in the measurement of Hip muscle strength. Design: Prospective study using test-retest design. Setting: Outpatient clinic setting. Participants: Ten subjects, ages 25 to 35yrs. Main Outcome Measures: Using the apparatus, three consecutive measures were recorded for Hip abduction and extension by an inexperienced examiner. Two weeks later, the same subjects were retested, with the evaluator blinded to the initial results. In both the test and retest, average and maximal values of strength were calculated for each muscle. Reliability of the device was assessed by computing the intraclass correlation coefficients and coefficients of variation (CVs). Results: Intraclass correlation coefficients ranged from .94 to .98. The average CV for the maximal and average abduction strength had values of 4.77% and 4%, respectively. The maximal and average extension strength had average CV values of 8.06% and 7.83%, respectively. Conclusion: This specially designed dynamometer anchoring station has been found to be highly reliable in the measurement of Hip girdle strength and has the advantage of easy adjustability and portability for large-scale screenings. This device enhances the reliability of the dynamometer, which may be subject to considerable variability when applied by hand to the powerful Hip girdle musculature. © 2000 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation

Kim L Bennell - One of the best experts on this subject based on the ideXlab platform.

  • intrarater test retest reliability of Hip range of motion and Hip muscle strength measurements in persons with Hip osteoarthritis
    Archives of Physical Medicine and Rehabilitation, 2008
    Co-Authors: Yonghao Pua, T Wrigley, Sallie M Cowan, Kim L Bennell
    Abstract:

    Abstract Pua YH, Wrigley TW, Cowan SM, Bennell KL. Intrarater test-retest reliability of Hip range of motion and Hip muscle strength measurements in persons with Hip osteoarthritis. Objective To examine the relative and absolute intrarater test-retest reliability of muscle strength and range of motion (ROM) measurements of the Hip performed in people with Hip osteoarthritis. Design Repeated measures. Setting Human movement laboratory of a university. Participants Participants (N=22; 10 men, 12 women; age range, 50-84y) with Hip osteoarthritis. Interventions On 2 separate occasions, at least 1 week apart, isometric torque measurements were obtained from the Hip rotators, flexors, abductors, and Extensors. Passive ROMs in Hip rotation, flexion, abduction, and extension were also determined. Main Outcome Measures Relative reliability was estimated using the intraclass correlation coefficient, model 2,2 (ICC2,2). Absolute reliability was estimated using the coefficient of variation (CV) and the standard error (SE) of measurement. Results For measurements of muscle strength, ICC2,2 ranged from .84 to .97, and the CV ranged from 8% to 15.7%. Hip Extensors and internal and external rotators showed high ICC2,2 (>.96) and low CV ( Conclusions Strength and ROM testing of the Hip in people with Hip osteoarthritis can be performed with good to excellent reliability.

  • intrarater test retest reliability of Hip range of motion and Hip muscle strength measurements in persons with Hip osteoarthritis
    Archives of Physical Medicine and Rehabilitation, 2008
    Co-Authors: Yonghao Pua, T Wrigley, Sallie M Cowan, Kim L Bennell
    Abstract:

    Abstract Pua YH, Wrigley TW, Cowan SM, Bennell KL. Intrarater test-retest reliability of Hip range of motion and Hip muscle strength measurements in persons with Hip osteoarthritis. Objective To examine the relative and absolute intrarater test-retest reliability of muscle strength and range of motion (ROM) measurements of the Hip performed in people with Hip osteoarthritis. Design Repeated measures. Setting Human movement laboratory of a university. Participants Participants (N=22; 10 men, 12 women; age range, 50-84y) with Hip osteoarthritis. Interventions On 2 separate occasions, at least 1 week apart, isometric torque measurements were obtained from the Hip rotators, flexors, abductors, and Extensors. Passive ROMs in Hip rotation, flexion, abduction, and extension were also determined. Main Outcome Measures Relative reliability was estimated using the intraclass correlation coefficient, model 2,2 (ICC 2,2 ). Absolute reliability was estimated using the coefficient of variation (CV) and the standard error (SE) of measurement. Results For measurements of muscle strength, ICC 2,2 ranged from .84 to .97, and the CV ranged from 8% to 15.7%. Hip Extensors and internal and external rotators showed high ICC 2,2 (>.96) and low CV ( 2,2 (.84) and the highest CV (15.7%). For ROM measurements, ICC 2,2 ranged from .86 to .97 and SE ranged from 3.1° to 4.7°. Hip flexion ROM showed the highest ICC 2,2 (.97) and an SE of 3.5°; Hip extension ROM showed the lowest ICC 2,2 (.86) and the highest SE (4.7°). Conclusions Strength and ROM testing of the Hip in people with Hip osteoarthritis can be performed with good to excellent reliability.

Eric Price - One of the best experts on this subject based on the ideXlab platform.

  • portable dynamometer anchoring station for measuring strength of the Hip Extensors and abductors
    Archives of Physical Medicine and Rehabilitation, 2000
    Co-Authors: Scott F Nadler, Melissa Deprince, Norman Hauesien, Gerard A Malanga, Todd P Stitik, Eric Price
    Abstract:

    Abstract Nadler SF, DePrince ML, Hauesien N, Malanga GA, Stitik TP, Price E. Portable dynamometer anchoring station for measuring strength of the Hip Extensors and abductors. Arch Phys Med Rehabil 2000;81:1072-6. Objective: To assess the reliability of a specially designed dynamometer anchoring station in the measurement of Hip muscle strength. Design: Prospective study using test-retest design. Setting: Outpatient clinic setting. Participants: Ten subjects, ages 25 to 35yrs. Main Outcome Measures: Using the apparatus, three consecutive measures were recorded for Hip abduction and extension by an inexperienced examiner. Two weeks later, the same subjects were retested, with the evaluator blinded to the initial results. In both the test and retest, average and maximal values of strength were calculated for each muscle. Reliability of the device was assessed by computing the intraclass correlation coefficients and coefficients of variation (CVs). Results: Intraclass correlation coefficients ranged from .94 to .98. The average CV for the maximal and average abduction strength had values of 4.77% and 4%, respectively. The maximal and average extension strength had average CV values of 8.06% and 7.83%, respectively. Conclusion: This specially designed dynamometer anchoring station has been found to be highly reliable in the measurement of Hip girdle strength and has the advantage of easy adjustability and portability for large-scale screenings. This device enhances the reliability of the dynamometer, which may be subject to considerable variability when applied by hand to the powerful Hip girdle musculature. © 2000 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation

Yonghao Pua - One of the best experts on this subject based on the ideXlab platform.

  • intrarater test retest reliability of Hip range of motion and Hip muscle strength measurements in persons with Hip osteoarthritis
    Archives of Physical Medicine and Rehabilitation, 2008
    Co-Authors: Yonghao Pua, T Wrigley, Sallie M Cowan, Kim L Bennell
    Abstract:

    Abstract Pua YH, Wrigley TW, Cowan SM, Bennell KL. Intrarater test-retest reliability of Hip range of motion and Hip muscle strength measurements in persons with Hip osteoarthritis. Objective To examine the relative and absolute intrarater test-retest reliability of muscle strength and range of motion (ROM) measurements of the Hip performed in people with Hip osteoarthritis. Design Repeated measures. Setting Human movement laboratory of a university. Participants Participants (N=22; 10 men, 12 women; age range, 50-84y) with Hip osteoarthritis. Interventions On 2 separate occasions, at least 1 week apart, isometric torque measurements were obtained from the Hip rotators, flexors, abductors, and Extensors. Passive ROMs in Hip rotation, flexion, abduction, and extension were also determined. Main Outcome Measures Relative reliability was estimated using the intraclass correlation coefficient, model 2,2 (ICC2,2). Absolute reliability was estimated using the coefficient of variation (CV) and the standard error (SE) of measurement. Results For measurements of muscle strength, ICC2,2 ranged from .84 to .97, and the CV ranged from 8% to 15.7%. Hip Extensors and internal and external rotators showed high ICC2,2 (>.96) and low CV ( Conclusions Strength and ROM testing of the Hip in people with Hip osteoarthritis can be performed with good to excellent reliability.

  • intrarater test retest reliability of Hip range of motion and Hip muscle strength measurements in persons with Hip osteoarthritis
    Archives of Physical Medicine and Rehabilitation, 2008
    Co-Authors: Yonghao Pua, T Wrigley, Sallie M Cowan, Kim L Bennell
    Abstract:

    Abstract Pua YH, Wrigley TW, Cowan SM, Bennell KL. Intrarater test-retest reliability of Hip range of motion and Hip muscle strength measurements in persons with Hip osteoarthritis. Objective To examine the relative and absolute intrarater test-retest reliability of muscle strength and range of motion (ROM) measurements of the Hip performed in people with Hip osteoarthritis. Design Repeated measures. Setting Human movement laboratory of a university. Participants Participants (N=22; 10 men, 12 women; age range, 50-84y) with Hip osteoarthritis. Interventions On 2 separate occasions, at least 1 week apart, isometric torque measurements were obtained from the Hip rotators, flexors, abductors, and Extensors. Passive ROMs in Hip rotation, flexion, abduction, and extension were also determined. Main Outcome Measures Relative reliability was estimated using the intraclass correlation coefficient, model 2,2 (ICC 2,2 ). Absolute reliability was estimated using the coefficient of variation (CV) and the standard error (SE) of measurement. Results For measurements of muscle strength, ICC 2,2 ranged from .84 to .97, and the CV ranged from 8% to 15.7%. Hip Extensors and internal and external rotators showed high ICC 2,2 (>.96) and low CV ( 2,2 (.84) and the highest CV (15.7%). For ROM measurements, ICC 2,2 ranged from .86 to .97 and SE ranged from 3.1° to 4.7°. Hip flexion ROM showed the highest ICC 2,2 (.97) and an SE of 3.5°; Hip extension ROM showed the lowest ICC 2,2 (.86) and the highest SE (4.7°). Conclusions Strength and ROM testing of the Hip in people with Hip osteoarthritis can be performed with good to excellent reliability.