Pelvic Adjustment Research Articles

Effect of pelvic adjustment on chronic low back pain and spino-pelvic parameters in middle-aged women

Effect of pelvic adjustment on chronic low back pain and spino-pelvic parameters in middle-aged women

Effects of pelvic adjustment on pelvic posture and angles of the lower limb joints during walking in female university students.

[Purpose] This study investigated the effects of pelvic adjustment on pelvic posture and lower limb joint angles during walking in female university students. [Subjects] Thirty healthy female university students were randomly assigned to an experimental group (pelvic adjustment group, n = 15) and a control group (stretching group, n = 15). [Methods] Pelvic adjustment was performed three times on the experimental group. The control group performed three sets of pelvic muscle stretching for 15 minutes. A back mapper and motion analysis equipment were used to measure pelvic posture and angles of lower limb joints for the experimental and control group. [Results] The values obtained before and after the intervention were compared. For the experimental group, the results were significantly different in terms of reduced differences in hip flexion between the left and right hips and in knee abduction between the left and right knees. Differences in pelvic position and pelvic torsion were also found in the experimental group. No significant differences in the control group were identified. [Conclusion] Pelvic adjustment affects pelvic position and torsion and this enhancement to pelvic stability decreases hip flexion and knee abduction during walking.

The influence of pelvic adjustment on vertical jump height in female university students with functional leg length inequality.

[Purpose] This study aimed to investigate the effect of pelvic adjustment on vertical jump height (VJH) in female university students with functional leg length inequality (FLLI). [Subjects] Thirty female university students with FLLI were divided into a pelvic adjustment group (n = 15) and a stretching (control) group (n = 15). [Methods] VJH was measured using an OptoGait. [Results] After the intervention, jump height improved significantly compared with the pre-intervention height only in the pelvic adjustment group, while FLLI showed statistically significant improvement in both groups. [Conclusion] Pelvic adjustment as per the Gonstead method can be applied as a method of reducing FLLI and increasing VJH.

Effects of pelvic adjustment on female university students' gait variables.

[Purpose] The purpose of this study was to examine the effects of pelvic adjustment using Gonstead techniques on posture in female university students. [Subjects] In this study, 30 female university students were selected and divided into a pelvic adjustment group of 15 subjects as an experimental group and a stretching group of 15 subjects as a control group. [Methods] Step length difference (SLD), stance phase difference (STPD), swing phase difference (SWPD), single support difference (SSD), and step time difference (STD) were evaluated in the subjects using an OptoGait. [Results] Whereas the adjustment group showed statistically significant differences in SLD, STPD, SWPD, SSD, and STD, the stretching group did not show any statistically significant differences in any of the items. [Conclusion] Pelvic adjustment can be applied using Gonstead techniques as a method of reducing differences in normal gait variables between the left and right sides in adults.

The Influence of Pelvic Adjustment on the Posture of Female University Students

[Purpose] The purpose of this study was to examine the effects of pelvic adjustment via the Gonstead Technique on the posture of female university students. [Subjects] The subjects of this study were 30 female university students who were equally and randomly allocated to a pelvic adjustment group, an experimental group, and a stretching group, a control group. [Methods] Using BackMapper, their trunk inclination (TIN), trunk imbalance (TIM), pelvic position (PPO), pelvic torsion (PTO), pelvic rotation (PRO), and position of their scapulae (PSA) were evaluated. [Results] The adjustment group obtained significant results in TIM, PPO, PTO, and PSA, while the control group obtained no significant results for any items. [Conclusion] Pelvic adjustment via the Gonstead Technique may be applied as a method to correct the posture of average adults.

The Influence of Pelvic Adjustment on Functional Leg Length Inequality and Foot Pressure

[Purpose] This study was conducted to evaluate the influence of pelvic adjustment on functional leg length inequality (FLLI) and foot pressure. [Subjects] The study subjects were 40 adults who were healthy but had FLLI of at least 10 mm. Subjects were randomly assigned to two groups, an experimental group (n=20) and a control group (n=20). [Methods] The subjects of the experimental group underwent pelvic adjustment 3 times a week for 4 weeks. A tape- measure was used to measure FLLI, and F-Scan was used to measure the heel pressure difference (HPD) and the 1st metatarsal pressur difference (MPD). For all subjects, the lengths of both legs were measured before the intervention, and at 2 weeks and 4 weeks after the intervention was started. [Results] Pelvic adjustment was effective at reducing FLLI , HPD and 1st MPD. HPD and the 1st MPD were reduced in proportion to the reduction in FLLI . FLLI was effectively reduced after 2 weeks of intervention and the reduction was more remarkable after 4 weeks. [Conclusion] We presume that pelvic adjustment reduces FLLI and foot pressure difference and that foot pressure difference is reduced in proportion to the reduction in FLLI. In conclusion, we consider that pelvic adjustment is suitable for reducing FLLI as well as foot pressure difference.

The Effect of Pelvic Adjustment on the Stability of Elderly Men

[Purpose] The purpose of this study was to examine the effect of pelvic adjustment using the Gonstead technique on the stability of elderly men. [Subjects] In this study, 20 elderly men were divided into a pelvic adjustment group (PAG, n = 10) and a control group (CG, n = 10). [Methods] Using a Balance Performance Monitor (SMS Health care, England), the sway area, sway path length, and sway maximum (max) velocity of the center of the body were measured to assess the stability of the subjects. [Results] Changes in the variables of stability were analyzed, and based on the results, the PAG showed significant improvement in all items (the sway area, sway path length and sway max velocity of the center of the body) after the intervention of the pelvic adjustment compared to before while the CG did not show any significant improvement. [Conclusion] Pelvic adjustment using the Gonstead technique can be used to improve the stability of elderly men.

Prediction of slaughter cow composition using live animal and carcass traits.

Slaughter cows (n = 120), representing four genotypes (British, continental, Bos indicus, and dairy) and three body condition classes (thin, moderate, and fat), n = 10 per subclass, were used to identify practical and accurate prediction equations for the yield of boneless manufacturing beef of specific fat percentages. Cows and their carcasses were weighed and evaluated for USDA yield and quality grade factors and for physical muscle and fat indicators. Carcass sides were fabricated; total fat percentage (TFP) was calculated as total fat (trimmed and chemical) divided by side weight, and tissue lean percentage (TLP) was calculated as boneless fat-free lean divided by soft tissue weight. Data were analyzed using maximum R2 multiple regression. The best live trait prediction model for TFP included live preliminary yield grade (LPYG), body condition score (LCOND), visual live muscle score (LMUSC), and live weight (LWT), R2 = .83. The best carcass trait TFP prediction model included adjusted preliminary yield grade (CPYGA); kidney, pelvic, and heart fat adjustment (CKPHADJ); marbling score (CMARB); and hot carcass weight (HCW), R2 = .92. The best live trait TLP prediction model included LPYG, LCOND, LMUSC, and LWT, R2 = .82. The best carcass trait TLP prediction model included CPYGA, CKPHADJ, CMARB, and lean maturity, R2 = .91. These data indicate that TFP and TLP of slaughter cows can be accurately and practically predicted using live animal and carcass traits.

Yearling adjustments for pelvic area of test station bulls.

Yearling bulls (n = 3,071) located at 18 stations in Missouri, Nebraska, Virginia, and Wisconsin were measured for pelvic area, in addition to standard performance traits. Linear adjustments for age and weight were determined using covariate regression analyses. Only bulls that were 300 to 452 d of age, 325 to 640 kg, and were in consignments offering more than nine bulls per breed were included in the analyses. Because the subsets of Angus, Polled Hereford, and Simmental bulls had large numbers of observations (817, 271, and 449, respectively), individual adjustment coefficients were determined for each breed. Angus, Polled Hereford, and Simmental bulls had pelvic area adjustment regressions on age of .20, .32, and .20 cm2/d, respectively, and regressions on body weight of .15, .22, and .18 cm2/kg, respectively. Homogeneous linear responses of all breeds (11 breeds including Angus, Polled Hereford, and Simmental) were combined to form all-breed coefficients for age and weight adjustments, which were .21 cm2/d and .15 cm2/kg, respectively. Weight or age adjustments can be used to compare contemporaries for relative pelvic area differences, but both should not be used on the same bull. Although many factors contribute to dystocia, high priority should be given to identifying sires of replacement heifers of low to moderate birth weight genotype and above average pelvic area genotype.

Reduced lordosis response following unilateral hypothalamic knife cuts

Bilateral hypothalamic knife cuts through the supraoptic commissures (SOC) can reduce or eliminate sexual receptivity in hamsters and rats. We now report that unilateral cuts also impair lordosis in response to bilateral and unilateral somatosensory stimuli. Ovariectomized, hormone-primed female hamsters received unilateral cuts in the near-lateral (NL) or far-lateral (FL) hypothalamus or received sham surgical treatments. Tests of sexual behavior were conducted at 2 and 3 weeks post-op. Unilateral cuts were sufficient to impair lordosis in response to bilaterally and unilaterally applied stimulation. The deficit in response to bilateral stimulation was relatively small. The greatest impairments were seen when unilateral flank stimulation was applied to the side of the body contralateral to the cut. Marked deficits were seen in both the NL and FL groups in response to contralateral but not ipsilateral stimulation. In contrast, these cuts failed to impair lateral displacement, a pelvic adjustment which occurs during lordosis in response to unilateral perineal stimulation. The cuts also did not produce obvious changes in responsiveness, or orienting, to other somatosensory stimuli. The effects of these hypothalamic cuts on lordosis are similar to the effects of unilateral dorsal midbrain lesions, which suggests that estrogen's influence on lordosis may be mediated via axons projecting through the SOC to the dorsal midbrain.

Limited coital stimulation facilitates sexual responses of the female hamster

The results of two separate experiments indicate that limited sexual stimulation (six intromissions) increases both the lateral extent of the region on the perineum from which pelvic adjustment responses can be elicited by tactile stimulation and the magnitude of the responses elicited. Response magnitude was affected by the intensity and pattern of stimulation and varied significantly among individuals. Possible mechanisms for these sex responses are discussed in relation to the results of neurophysiological investigations of potentially similar processes in the rat [10].

The sexual responses of the female hamster: A descriptive analysis

While in lordosis the female hamster responds to tactile stimulation with phasic postural adjustments of the perineal region. Artificial tactile stimulation was applied to the perineal region of female hamsters maintained in the lordosis position by manual stimulation. This technique was used to describe the pelvic adjustment responses, the stimulus control of these responses and the effects of contextual stimuli on the relations between perineal tactile stimulation and pelvic adjustment responses.