Lumbopelvic rhythm in the sagittal plane: A review of the effects of participants and task characteristics

Vazirian, Milad; Dillen, Linda R. Van; Bazrgari, Babak

doi:10.1080/17536146.2016.1241525

Cited by 18 publications

(22 citation statements)

References 34 publications

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“…The current study also found that gender contributed to the AUKEiSit test performance, where males had a greater θ value than females. This finding indicates that males tend to have poorer performance in the AUKEiSit than females, which is in agreement with other studies indicating greater lumbopelvic movement in males than females using other clinical tests 12,30,31) . In the current study, the presence of LBP did not contribute to the AUKEiSit test performance.…”

Section: Discussionsupporting

confidence: 92%

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Habitual posture and weekly time spent sitting do not contribute to the lumbopelvic curvature during active unilateral knee extension in sitting test

2020

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[Purpose] To investigate whether habitual pelvic posture and time spent sitting are primary contributing factors to performance in the active unilateral knee extension in sitting test in young people. [Participants and Methods] The participants’ ages ranged from 20 to 40 years. LUMOback, a wearable electronic device, was used to measure the proportion of the days spent in a neutral pelvic posture (posture score) and time spent sitting over a week. The lumbopelvic sagittal curvature from T12 to S2 (θ) during the active unilateral knee extension in sitting test was also assessed using a flexible ruler. A multiple regression analysis was performed with the primary independent variables of the posture score and time spent sitting, undertaking priori considerations of potential confounders of sex, and pain condition on the θ value. [Results] Eighty participants (21.7 ± 3.8 years) were enrolled in the study (24 males and 56 females). Neither the posture score nor time spent sitting statistically significantly contributed to the θ value. [Conclusion] Neither the proportion of the day spent with neutral pelvic posture nor time spent sitting detected by LUMOback was the primary contributing factor to the active unilateral knee extension in sitting test performance.

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Section: Discussionsupporting

confidence: 92%

“…Therefore, the presence of LBP may contribute to the AUKEiSit test performance. Further, a systematic review concluded that age and gender contributed to lumbopelvic rhythm during sagittal plane movement 12 ) . This may be due to the fact that age above or below 45 years has an effect on hamstring muscle flexibility 13 ) .…”

Section: Introductionmentioning

confidence: 99%

Habitual posture and weekly time spent sitting do not contribute to the lumbopelvic curvature during active unilateral knee extension in sitting test

2020

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“…Hip and lumbar movements are intimately interconnected and closely coordinated, and the association between hip and lumbar motion is widely known as the lumbopelvic rhythm 1,2) and pelvifemoral rhythm 3) via the pelvis. Failure of the lumbopelvic rhythm or pelvifemoral rhythm results in excessive loading of the lumbar and hip joints, leading to injury 4,5) .…”

Section: Introductionmentioning

confidence: 99%

Relationship between iliopsoas muscle thickness and hip angle during squats in different pelvic positions

et al. 2021

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This study aimed to investigate the relationships among the changes in iliopsoas muscle thickness, hip angle, and lower limb joint moment during squatting in different pelvic positions to help in performing hip-dominant squatting exercises. [Participants and Methods] The participants were seven healthy adult males. The measurement task consisted of squatting with 60 degrees of knee flexion in three positions: the anterior, neutral, and posterior pelvic tilt positions. The iliopsoas muscle thickness was measured in the center of the inguinal region using ultrasonography. A three-dimensional motion analysis system was used to measure the joint angles and joint moments. [Results] There were no significant differences in pelvic angles between the pelvic positions. The hip angle differences were significantly higher in the anterior and neutral pelvic tilt positions compared to those in the posterior tilt position. Only the anterior pelvic tilt position had a significantly positive correlation with iliopsoas muscle thickness and hip angle differences. [Conclusion] Squatting in the neutral or posterior pelvic tilt position was not associated with hip angle and iliopsoas muscle thickness changes, whereas squatting in an anterior pelvic tilt position was associated with changes in the iliopsoas muscle thickness and hip flexion angle. Our findings suggest that activation of the iliopsoas muscle might be necessary to promote hip-dominant squatting.

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“…Emerging from these earlier investigations and despite some discrepancies, LBP patients appear to demonstrate an altered LPC involving smaller lumbar and larger pelvic contributions to trunk motion when compared to asymptomatic individuals (Marras and Wongsam, 1986 ; Ahern et al, 1988 ; Paquet et al, 1994 ; Porter and Wilkinson, 1997 ; Shojaei et al, 2017a ). Additionally, the timing and coordination of pelvic and lumbar movements is altered among patients with LBP (Vazirian et al, 2016b ). Furthermore, such an abnormal LPC of patients with LBP has been suggested to persist even after symptoms have subsided (Ferguson et al, 2000 ; Thomas and France, 2008 ; Shojaei et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Changes in Lumbo-Pelvic Coordination of Individuals With and Without Low Back Pain When Wearing a Hip Orthosis

Ballard¹,

Drury²,

Bazrgari³

2020

Front. Sports Act. Living

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Individuals with low back pain demonstrate an abnormal lumbo-pelvic coordination compared to back-healthy individuals. This abnormal coordination presents itself as a reduction in lumbar contributions and an increase in pelvic rotations during a trunk forward bending and backward return task. This study investigated the ability of a hip orthosis in correcting such an abnormal lumbo-pelvic coordination by restricting pelvic rotation and, hence increasing lumbar contributions. The effects of the hip orthosis on the lumbo-pelvic coordination were investigated in 20 low back pain patients and 20 asymptomatic controls. The orthosis reduced pelvic rotation by 12.7 • and increased lumbar contributions by 11%. Contrary to our expectation, orthosis-induced changes in lumbo-pelvic coordination were smaller in patients; most likely because our relatively young patient group had smaller unrestricted pelvic rotations compared to asymptomatic individuals. Considering the observed capability of a hip orthosis in causing the expected changes in lumbo-pelvic coordination when there is a relatively large pelvic contribution to trunk motion, application of a hip orthosis may provide a promising method of correcting abnormal lumbo-pelvic coordination, particularly among patients who demonstrate larger pelvic rotation, that warrants further investigation.

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Lumbopelvic rhythm in the sagittal plane: A review of the effects of participants and task characteristics

Cited by 18 publications

References 34 publications

Habitual posture and weekly time spent sitting do not contribute to the lumbopelvic curvature during active unilateral knee extension in sitting test

Habitual posture and weekly time spent sitting do not contribute to the lumbopelvic curvature during active unilateral knee extension in sitting test

Relationship between iliopsoas muscle thickness and hip angle during squats in different pelvic positions

Changes in Lumbo-Pelvic Coordination of Individuals With and Without Low Back Pain When Wearing a Hip Orthosis

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