scholarly journals Lumbar spine abnormalities and facet joint angles in asymptomatic elite junior tennis players

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Molly Connolly ◽  
Andrew H. Rotstein ◽  
Justin Roebert ◽  
Rafal Grabinski ◽  
Frank Malara ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Bone Marrow Edema ◽  
Facet Joint ◽  
Joint Angles ◽  
Joint Orientation ◽  
Tennis Players ◽  
Facet Joint Degeneration ◽  
Junior Tennis ◽  
Spine Abnormalities ◽  
The Relationship

Abstract Background Lumbar spine abnormalities, in particular stress fractures to the pars interarticularis, are common in elite junior tennis players, though the difference in prevalence between males and females remains unclear. Further, facet joint orientation appears to be a possible option for recognizing which players might go on to present with a pars stress fracture. Given the link between pars stress fractures and low back pain in tennis players, it appears logical to explore the link between facet joint angle and pars abnormalities. Thus, the purpose of this study was to describe the prevalence of lumbar spine abnormalities and explore the relationship between facet joint orientation and pars abnormalities in elite adolescent tennis players. Methodology Lumbar spine MRI images of 25 elite junior tennis players were obtained and distributed between five radiologists for analysis. Descriptive comparisons and confidence intervals were used to describe the prevalence of the abnormalities. A generalized linear regression model was conducted to investigate the relationship between lumbar pars abnormalities and lumbar facet joint angles. Results Sixteen (64%) of 25 players were found to have at least one lumbar spine abnormality. Pars abnormalities affected 36% of players while bone marrow edema was found in 24% of players. Disc herniation, disc degeneration, and facet joint degeneration were diagnosed in 20%, 44%, and 24% of players respectively. Lastly, one player (4%) was diagnosed with spondylolisthesis. Females had significantly larger facet joint angles across L3/4 L5/S1 compared to males (p < 0.01). Further, those who had pars abnormalities had larger facet joint angles compared to those who did not (p < 0.001). Conclusion Disc degeneration, pars abnormalities, including bone marrow edema, and facet joint degeneration were common findings among elite adolescent tennis players. Additionally, this study is the first to discover that pars abnormalities are linked to facet joint angle in elite adolescent tennis players. This finding might assist in identifying tennis players at a greater risk of developing lumbar spine pars abnormalities in the future.

The Relationship between Observable Self-Talk and Competitive Junior Tennis Players' Match Performances

1994 ◽  
Vol 16 (4) ◽  
pp. 400-415 ◽  
Author(s):  
Judy L. Van Raalte ◽  
Britten W. Brewer ◽  
Patricia M. Rivera ◽  
Albert J. Petitpas
Keyword(s):  
Sport Psychology ◽  
Descriptive Analysis ◽  
Sport Performance ◽  
Cognitive Factors ◽  
Competitive Sport ◽  
Tennis Players ◽  
Self Talk ◽  
Junior Tennis ◽  
The Relationship ◽  
Broad Interest

In sport psychology, there is broad interest in cognitive factors that affect sport performance. The purpose of this research was to examine one such factor, self-talk, in competitive sport performance. Twenty-four junior tennis players were observed during tournament matches. Their observable self-talk, gestures, and match scores were recorded. Players also described their positive, negative, and other thoughts on a postmatch questionnaire. A descriptive analysis of the self-talk and gestures that occurred during competition was generated. It was found that negative self-talk was associated with losing and that players who reported believing in the utility of self-talk won more points than players who did not. These results suggest that self-talk influences competitive sport outcomes. The importance of "believing" in self-talk and the potential motivational and detrimental effects of negative self-talk on performance are discussed.

scholarly journals Facet joint degeneration adversely affects ultrasound imaging of the lumbar spine

2019 ◽  
Vol 21 (2) ◽  
pp. 131
Author(s):  
Karthikeyan Srinivasan ◽  
Hong Kuan Kok ◽  
Mona Mubarak ◽  
William Torregianni ◽  
Robert Whitty
Keyword(s):  
Lumbar Spine ◽  
Ligamentum Flavum ◽  
Facet Joint ◽  
Posterior Longitudinal Ligament ◽  
Joint Degeneration ◽  
Neuraxial Block ◽  
Interspinous Space ◽  
Facet Joint Degeneration ◽  
Experienced Operator ◽  
Magnetic Resonance Imaging Mri

Aim: Ultrasound of neuraxis can be used to identify the best possible inter-spinous space to perform neuraxial block. The aim of this study was to assess the anatomical correlation between neuraxial ultrasound and magnetic resonance imaging (MRI).Material and method: Twenty-one patients who underwent MRI of the lumbar spine had ultrasound of lumbar neuraxis performed by an experienced operator. Each lumbar interspinous space was graded on ultrasound as good [posteriorcomplex (ligamentum flavum and duramater) and anterior complex (posterior longitudinal ligament) visible], intermediate (either anterior complex or posterior complex visible) or poor (both anterior complex and posterior complex not visible) in both the transverse median (TM) and paramedian sagittal oblique (PSO) plane. Pre-determined MRI parameters were measured by a radiologist blinded to sonographic findings at each inter-spinal level.Results: Seventy-eight lumbar interspinous spaces were evaluated. There was a significant association (p<0.004) between the facet joint degeneration on MRI and the poor ultrasound view in the transverse median (TM) group. The odds of obtaining a poor view in TM plane was 7 times higher (95% CI 1.7-28.9, p=0.007) in the presence of facet joint degeneration. None of the other variables had a significant association with a poor neuraxial view in the TM plane. Poor views in the parasagittal oblique (PSO) plane did not correlate with any of the variables measured on MRI.Conclusion: Facet joint degeneration is a major contributing factor to poor neuraxial ultrasound views in the TM plane. 

scholarly journals The relationship between facet joint osteoarthritis and disc degeneration of the lumbar spine: an MRI study

1999 ◽  
Vol 8 (5) ◽  
pp. 396-401 ◽  
Author(s):  
Atsushi Fujiwara ◽  
Kazuya Tamai ◽  
Minoru Yamato ◽  
Howard S. An ◽  
Hiroyuki Yoshida ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Disc Degeneration ◽  
Facet Joint ◽  
Facet Joint Osteoarthritis ◽  
Mri Study ◽  
The Relationship

The Relationship Between Disc Degeneration, Facet Joint Osteoarthritis, and Stability of the Degenerative Lumbar Spine

2000 ◽  
Vol 13 (5) ◽  
pp. 444-450 ◽  
Author(s):  
Atsushi Fujiwara ◽  
Kazuya Tamai ◽  
Howard S. An ◽  
Akira Kurihashi ◽  
Tae-Hong Lim ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Disc Degeneration ◽  
Facet Joint ◽  
Facet Joint Osteoarthritis ◽  
Degenerative Lumbar Spine ◽  
The Relationship

scholarly journals Mental Toughness in Talented Youth Tennis Players: A Comparison Between on-Court Observations and a Self-Reported Measure

2017 ◽  
Vol 55 (1) ◽  
pp. 139-148 ◽  
Author(s):  
Ruben Houwer ◽  
Tamara Kramer ◽  
Ruud den Hartigh ◽  
Nikki Kolman ◽  
Marije Elferink-Gemser ◽  
...  
Keyword(s):  
The Self ◽  
Mental Toughness ◽  
Psychological State ◽  
Emotional Control ◽  
Rater Reliability ◽  
Tennis Players ◽  
Junior Tennis ◽  
Elite Level ◽  
The Relationship

AbstractIn tennis, mental toughness is often considered highly important in achieving the elite level. The current study is the first to examine behavioural expressions of mental toughness on the court and their relationships with self-reported measures. Based on the input of five experienced tennis coaches of junior tennis players and behaviours used in previous studies, we developed a taxonomy consisting of six positive behaviours and ten negative ones. To investigate the relationship between these on-court behaviours of mental toughness and how the players rated their own mental toughness, emotional control in particular, six talented tennis players (aged 10-13) were recorded during tennis matches and filled out the self-reported measure of mental toughness (MTQ48). The intra- and inter-rater reliability of the taxonomy was high. With regard to the relationships between on-court behaviours and self-reported mental toughness (total score and subscale emotional control), results revealed no significant correlations between the ratios of positive and negative behaviours (range r = -0.49 - 0.11, p > 0.05) or between the variability of negative behaviours (r = 0.54 & r = 0.10, p > 0.05) and the self-reported measure. However, interestingly, we found negative correlations between the variability of positive behaviours and self-reported mental toughness (r = -0.93 & r = -0.84, ρ < 0.05). These results indicate that variability in on-court behaviours provides interesting information about tennis players’ mental toughness, more specifically on the (in)stability of their psychological state during a match.

scholarly journals The relationship of some physical variables and performance angles to the strength of the straight serve for junior tennis

2021 ◽  
Vol 20 (4) ◽  
pp. 0061
Author(s):  
Zainab Shakir ◽  
Dr. Widad Kadhum
Keyword(s):  
The Body ◽  
Tennis Ball ◽  
Body Parts ◽  
Correlation Relationship ◽  
Tennis Players ◽  
Junior Tennis ◽  
Physical Variables ◽  
And Performance ◽  
Relationship Of ◽  
The Relationship

The problem of the research in determining the appropriate angles in the strength of serve for tennis age (14-16) year according to the specific biomechanical conditions, and the extent of the relationship of each variable of the physical variables in the successful performance of the skill of serve, and achieving the strength of transmission for tennis age (14-16) year, and it is one of the biomechanical principles that can be used in evaluating the angles of body parts. age (14-16) year tennis players. The aim of the research is to identify the percentage of the contribution of some physical variables of the straight serve for tennis juniors, and the percentage of the contribution of some corners of the body to the strength of serve for the tennis age (14-16) year (18) players. The two researchers reached a number of results, the most important of which are: There is a statistically significant correlation between some physical abilities and body angles with the straight serve for tennis players. The lower the angles (elbow, shoulder, knee for the front leg) at the moment of hitting the tennis ball, the stronger the serve will be. Correlation relationship with some biomechanical variables, because the skill of serve requires the strength of the striking arm during the performance of the straight serve

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