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Effect of abdominal drawing-in maneuver during hip extension on the muscle onset time of gluteus maximus, hamstring, and lumbar erector spinae in subjects with hyperlordotic lumbar angle.

Kim T, Woo Y, Kim Y - J Physiol Anthropol (2014)

Bottom Line: During ADIM application, the muscle contraction onset time of the gluteus maximus was significantly increased in the LHLA group compared with the LNLA group.ADIM application during prone hip extension was more effective for gluteus maximus onset time in the LHLA group.Therefore, ADIM during prone hip extension may be useful for gluteus maximus training in individuals with lumbar hyperlordosis.

View Article: PubMed Central - PubMed

Affiliation: Department of Physical Therapy, College of Medical Sciences, Jeonju University, 303 Cheonjam-ro, Wansan-gu, Jeonju, Jeonbuk-do 560-759, Korea Republic. ptkim@jj.ac.kr.

ABSTRACT

Background: The abdominal drawing-in maneuver (ADIM) is used to prevent abnormal movements of the lumbar spine and pelvis during therapeutic exercises. This study compared the effects of ADIM on the muscle onset time of the hamstring, gluteus maximus, and erector spinae muscles during prone hip extension exercise in subjects with or without hyperlordotic lumbar angle. Forty healthy adults (18 male, 22 female) were recruited for this study.

Methods: The lumbar lordotic angles and pelvic tilt angles of the subjects were measured using the Avaliação postural analysis software. The subjects were divided into two groups: the lumbar hyperlordotic angle (LHLA) and lumbar normal lordotic angle (LNLA) groups. The muscle contraction onset time of the hamstring, gluteus maximus, and erector spinae were assessed using surface electromyography.

Results: During ADIM application, the muscle contraction onset time of the gluteus maximus was significantly increased in the LHLA group compared with the LNLA group.

Conclusions: ADIM application during prone hip extension was more effective for gluteus maximus onset time in the LHLA group. Therefore, ADIM during prone hip extension may be useful for gluteus maximus training in individuals with lumbar hyperlordosis.

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Related in: MedlinePlus

Experimental posture used to measure hamstring, gluteus maximus, and lumbar erector spinae muscle onset times during prone hip extension.
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Fig2: Experimental posture used to measure hamstring, gluteus maximus, and lumbar erector spinae muscle onset times during prone hip extension.

Mentions: Before beginning the experiment, all participants were introduced to the experimental method. The experiment was conducted with subjects in a prone position. A horizontal bar was placed over subjects’ ankle joints, such that they touched the horizontal bar when hip extension reached 10°, measured using a goniometer (Figure 2). To maintain constant movement and synchronize with the EMG measurement during prone hip extension, an electronic metronome was used, which provided initial visual information by displaying each second on the screen. EMG measurement and the electronic metronome were initialized simultaneously. Prior to measurement, subjects were permitted to practice the hip extension motion three times. Knee bend and hip rotation were prohibited during performance of the hip extension motion.Figure 2


Effect of abdominal drawing-in maneuver during hip extension on the muscle onset time of gluteus maximus, hamstring, and lumbar erector spinae in subjects with hyperlordotic lumbar angle.

Kim T, Woo Y, Kim Y - J Physiol Anthropol (2014)

Experimental posture used to measure hamstring, gluteus maximus, and lumbar erector spinae muscle onset times during prone hip extension.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4300586&req=5

Fig2: Experimental posture used to measure hamstring, gluteus maximus, and lumbar erector spinae muscle onset times during prone hip extension.
Mentions: Before beginning the experiment, all participants were introduced to the experimental method. The experiment was conducted with subjects in a prone position. A horizontal bar was placed over subjects’ ankle joints, such that they touched the horizontal bar when hip extension reached 10°, measured using a goniometer (Figure 2). To maintain constant movement and synchronize with the EMG measurement during prone hip extension, an electronic metronome was used, which provided initial visual information by displaying each second on the screen. EMG measurement and the electronic metronome were initialized simultaneously. Prior to measurement, subjects were permitted to practice the hip extension motion three times. Knee bend and hip rotation were prohibited during performance of the hip extension motion.Figure 2

Bottom Line: During ADIM application, the muscle contraction onset time of the gluteus maximus was significantly increased in the LHLA group compared with the LNLA group.ADIM application during prone hip extension was more effective for gluteus maximus onset time in the LHLA group.Therefore, ADIM during prone hip extension may be useful for gluteus maximus training in individuals with lumbar hyperlordosis.

View Article: PubMed Central - PubMed

Affiliation: Department of Physical Therapy, College of Medical Sciences, Jeonju University, 303 Cheonjam-ro, Wansan-gu, Jeonju, Jeonbuk-do 560-759, Korea Republic. ptkim@jj.ac.kr.

ABSTRACT

Background: The abdominal drawing-in maneuver (ADIM) is used to prevent abnormal movements of the lumbar spine and pelvis during therapeutic exercises. This study compared the effects of ADIM on the muscle onset time of the hamstring, gluteus maximus, and erector spinae muscles during prone hip extension exercise in subjects with or without hyperlordotic lumbar angle. Forty healthy adults (18 male, 22 female) were recruited for this study.

Methods: The lumbar lordotic angles and pelvic tilt angles of the subjects were measured using the Avaliação postural analysis software. The subjects were divided into two groups: the lumbar hyperlordotic angle (LHLA) and lumbar normal lordotic angle (LNLA) groups. The muscle contraction onset time of the hamstring, gluteus maximus, and erector spinae were assessed using surface electromyography.

Results: During ADIM application, the muscle contraction onset time of the gluteus maximus was significantly increased in the LHLA group compared with the LNLA group.

Conclusions: ADIM application during prone hip extension was more effective for gluteus maximus onset time in the LHLA group. Therefore, ADIM during prone hip extension may be useful for gluteus maximus training in individuals with lumbar hyperlordosis.

Show MeSH
Related in: MedlinePlus