John Krauss

Dr. John Krauss

orcid

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 April 2008 in Journal of Manual & Manipulative Therapy
Verified
Journal Article
Closed access
JKJohn Krauss
John Krauss
DCDoug Creighton
Doug Creighton
JEJonathan D. Ely
Jonathan D. Ely
JPJoanna Podlewska-Ely
Joanna Podlewska-Ely
This study examined the effect of translatoric spinal manipulation (TSM) on cervical pain and cervical active motion restriction when applied to upper thoracic (T1-T4) segments. Active cervical rotation range of motion was measured re- and post-intervention with a cervical inclinometer (CROM), and cervical pain status was monitored before and after manipulation with a Faces Pain Scale. Study participants included a sample of convenience that included 32 patients referred to physical therapy with complaints of pain in the mid-cervical region and restricted active cervical rotation. Twenty-two patients were randomly assigned to the experimental group and ten were assigned to the control group. Pre- and post-intervention cervical range of motion and pain scale measurements were taken by a physical therapist assistant who was blinded to group assignment. The experimental group received TSM to hypomobile upper thoracic segments. The control group received no intervention. Paired t-tests were used to analyze within-group changes in cervical rotation and pain, and a 2-way repeated-measure ANOVA was used to analyze between-group differences in cervical rotation and pain. Significance was accepted at p = 0.05. Significant changes that exceeded the MDC(95) were detected for cervical rotation both within group and between groups with the TSM group demonstrating increased mean (SD) in right rotation of 8.23 degrees (7.41 degrees ) and left rotation of 7.09 degrees (5.83 degrees ). Pain levels perceived during post-intervention cervical rotation showed significant improvement during right rotation for patients experiencing pain during bilateral rotation only (p=.05). This study supports the hypothesis that spinal manipulation applied to the upper thoracic spine (T1-T4 motion segments) significantly increases cervical rotation ROM and may reduce cervical pain at end range rotation for patients experiencing pain during bilateral cervical rotation.

25 September 2024 in Applied Sciences
Verified
Journal Article
Open access
PDF file
CZCarlos Zárate-Tejero
Carlos Zárate-Tejero
PRPere Ramón Rodríguez-Rubio
Pere Ramón Rodríguez-Rubio
LBLindsay Brandt
Lindsay Brandt
JKJohn Krauss
John Krauss
MSMar Hernández Secorún
Mar Hernández Secorún
María Orosia Lucha-LópezMaría Orosia Lucha-López
María Orosia Lucha-López
The clinical examination of patients with cervical spine pathology includes measures of posture, mobility, strength, and stability. The forward head position as measured by craniovertebral angle (CVA) has been suggested as a risk factor for cervical spine pathology. The purpose of this study was to describe CVA reference values in healthy adults and assess the relationship with age and sex. This prospective cross-sectional observational study measured the CVA in 122 healthy adults using digital analysis of a lateral view photograph. To facilitate this analysis, a marker was placed at the level of the C7 vertebra, with the tragus of the ear visible in the photograph. The CVA was measured using Kinovea 0.8.15 software, where the CVA was calculated using the intersection of a horizontal line with a line joining the spinous process of C7 and the tragus of the ear. Mean CVA values were 48.76° (6.77) across all participants, 50.07° (6.63) for females, and 47.46° (6.71) for males. Linear regression analysis indicated significant relationships with age and with sex. The study established CVA reference values in healthy adults and identified a significant difference in head position between males and females and a 1.6° decrease in CVA per decade of increased age.

7 February 2023 in Life
Verified
Journal Article
Open access
PDF file
CZCarlos Zárate-Tejero
Carlos Zárate-Tejero
PRPere Ramón Rodríguez-Rubio
Pere Ramón Rodríguez-Rubio
LBLindsay Brandt
Lindsay Brandt
JKJohn Krauss
John Krauss
MSMar Hernández Secorún
Mar Hernández Secorún
CHCésar Hidalgo-García
César Hidalgo-García
Active motion examination of patients with cervical spine-related pathologies is necessary to establish baseline function, set physical therapy goals, and choose interventions. This study investigated the sagittal plane active range of motion (ROM) of the global (GCS) and upper cervical spine (UCS) in relation to age and sex in healthy volunteers. One hundred twenty-two volunteers aged 18 to 75 years participated. Volunteers were excluded if they displayed any characteristic that could affect cervical spine ROM. GCS and UCS flexion and extension were each measured three times using a CROM device. Linear regression models (LRMs) were developed to explore the relationships between age and sex and GCS and UCS ROM. The LRM for age showed a decrease in GCS flexion (−2.01°), GCS extension (−3.33°), and UCS extension (−1.87°) for every decade of increasing age. The LRM for sex showed that men displayed less ROM than women in GCS extension (−6.52°) and UCS extension (−2.43°). These results suggest an age-related loss of sagittal plane GCS ROM and UCS extension ROM, and sex-related differences in GCS and UCS extension with women having greater motion than men.

23 November 2023 in Biomedicines
Verified
Journal Article
Open access
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María Orosia Lucha-LópezMaría Orosia Lucha-López
María Orosia Lucha-López
CHCésar Hidalgo-García
César Hidalgo-García
SMSofía Monti-Ballano
Sofía Monti-Ballano
SGSergio Márquez Gonzalvo
Sergio Márquez Gonzalvo
JKJohn Krauss
John Krauss
JTJosé Miguel Tricás-Moreno
José Miguel Tricás-Moreno
Diacutaneous Fibrolysis (DF) is an instrumentally assisted manual therapy technique defined as “a specific instrumental intervention for normalizing the musculoskeletal system function after a precise diagnosis and preserving the skin’s integrity”. The aim of this technique is soft tissue mobilization with the assistance of specially designed, hook-shaped steel instruments in different musculoskeletal structures, such as the myofascia, aponeurosis, tendons, ligaments and scar tissues. Due to discrepant results between previous reviews and the quite abundant new evidence provided by recently published randomized clinical trials, we propound this narrative review to provide an update on the scientific evidence related to the fundamentals and clinical efficacy of DF. Current evidence primarily supports the mechanical effect of DF on connective soft tissues. Diminished deep tendon reflex and rigidity have been registered after the implementation of DF in healthy subjects. Though there is still much to uncover, scientific evidence supports the use of the technique for the clinical treatment of subacromial impingement syndrome, chronic lateral epicondylalgia, chronic patellofemoral pain syndrome, mild to moderate carpal tunnel syndrome, hamstring shortening, temporomandibular disorders, tension-type headache and chronic low back pain. Additional data are essential for better recommendations in the clinical practice of DF.

Verified
Journal Article
Open access
PDF file
MSMar Hernández Secorún
Mar Hernández Secorún
HAHugo Abenia-Benedí
Hugo Abenia-Benedí
María Orosia Lucha-LópezMaría Orosia Lucha-López
María Orosia Lucha-López
MDMaría Durán-Serrano
María Durán-Serrano
JHJavier Sami Hamam-Alcober
Javier Sami Hamam-Alcober
CHCésar Hidalgo-García
César Hidalgo-García
Background: Carpal tunnel syndrome (CTS) presents a high burden on the healthcare system. However, no alternative treatments are provided during the waiting period. In addition, the incidence of severe patients with comorbidities is underestimated. The aim of this study was to determine whether nerve mechanical interface treatment improves the symptoms, function, and quality of life in pre-surgical CTS patients. Methods: A randomized controlled trial and intention-to-treat analysis were carried out. Forty-two patients with an electrodiagnosis of carpal tunnel syndrome, included on the surgery waiting list of a public healthcare system, were analyzed. The intervention group (n = 20) received a 45 min session/per week of instrument-assisted manual therapy (diacutaneous fibrolysis) for 3 weeks. The Boston Carpal Tunnel Questionnaire (BCTQ) was the primary outcome. The symptoms, mechanical threshold, grip strength, mechanosensitivity of the median nerve, quality of life, and patient satisfaction were included as secondary outcomes. The control group (n = 22) remained on the waiting list. Results: The intervention seems to be beneficial for the BCTQ score (function and symptoms scale), pain, and mechanosensitivity after treatment, at the 3 and 6 months follow-up (p < 0.05). Kinesiophobia was improved at 6 months (p = 0.043; η2 = 0.10) and the mechanical threshold at the 3-month follow-up (p = 0.048; η2 = 0.10). No differences were identified for grip strength. At 6 months, the intervention group patients were satisfied (100%), as opposed to the controls, who felt that they had experienced a worsening of their condition (50.1%). Conclusions: Nerve mechanical interface treatment improved the symptoms, function, and quality of life in pre-surgical CTS patients. One hundred percent of the treated patients, characterized as moderate and severe CTS with associated comorbidities, were satisfied.

1 January 2022 in Journal of Biomechanics
Verified
Journal Article
Open access
ALAna I Lorente
Ana I Lorente
CHCésar Hidalgo-García
César Hidalgo-García
PFPablo Fanlo-Mazas
Pablo Fanlo-Mazas
Jacobo Rodríguez-SanzJacobo Rodríguez-Sanz
Jacobo Rodríguez-Sanz
Carlos López-de-CelisCarlos López-de-Celis
Carlos López-de-Celis
Albert Pérez-BellmuntAlbert Pérez-Bellmunt
Albert Pérez-Bellmunt
Previous studies indicate that maximum upper cervical axial rotation occurs only through a combination of transverse, frontal, and sagittal plane motions. This study explores the relationship between transection of the alar ligament and combined upper cervical axial rotation movements. Ten cryopreserved upper cervical spines were manually mobilized in bilateral axial rotation and two different motion combinations with simultaneous motion in the three anatomical planes: rotation in extension (extension + axial rotation + contralateral lateral bending) and rotation in flexion (flexion + axial rotation + ipsilateral lateral bending). These three motions were performed before and after right alar ligament transection. The occiput-axis axial rotation was measured using an optical motion capture system while measuring the applied load. With intact alar ligament, the axial rotation in flexion showed the lowest range of motion (right, R: 9.81 ± 3.89°; left, L: 15.54 ± 5.89°). Similar results were found between the other two mobilizations: axial rotation (R: 33.87 ± 6.64°; L: 27.99 ± 6.90°) and rotation in extension (R: 35.15 ± 5.97°; L: 28.96 ± 6.47°). After right alar ligament transection, rotation in flexion (particularly in left rotation) showed the largest increase in motion: rotation in flexion (R: 13.78 ± 9.63°; L: 23.04 ± 5.59°), rotation in extension (R: 36.39 ± 7.10°; L: 31.71 ± 7.67°), and axial rotation (R: 38.50 ± 9.47°; L: 31.59 ± 6.55°). Different combinations of movements should be evaluated when analyzing the maximum axial rotation of the upper cervical spine, as axial rotation alone and rotation in extension showed a larger range of motion than rotation in flexion. After unilateral alar ligament injury, rotation to the non-injured side in flexion demonstrates the most movement increase.