Hip Internal Rotation Is Correlated to Radiographic Findings of Cam Femoroacetabular Impingement in Collegiate Football Players

2012 ◽  
Vol 28 (11) ◽  
pp. 1661-1670 ◽  
Author(s):  
Ashley L. Kapron ◽  
Andrew E. Anderson ◽  
Christopher L. Peters ◽  
Lee G. Phillips ◽  
Gregory J. Stoddard ◽  
...  
2014 ◽  
Vol 41 (1) ◽  
pp. 36-42 ◽  
Author(s):  
Rodrigo Benedet Scheidt ◽  
Carlos Roberto Galia ◽  
Cristiano Valter Diesel ◽  
Ricardo Rosito ◽  
Carlos Alberto De Souza Macedo

OBJECTIVE: to determine the prevalence of radiographic signs of femoroacetabular impingement (FAI) in asymptomatic adults and correlate them with data from physical examinations. METHODS: We conducted a cross-sectional study with 82 asymptomatic volunteers, 164 hips, between 40 and 60 years of age, selected by convenience. They were submitted to anamnesis and clinical examination of the hip, anteroposterior (AP) pelvis radiographs with three incidences, Dunn 45° and Lequesne false profile of each hip, to measure the variables. We measured the alpha angle, anterior offset of the femoral neck, cervical diaphyseal angle, CE angle of Wiberg, acetabular index, Sharp angle, and the crossing, ischial spine and posterior wall signs. RESULTS: our sample consisted of 66% women, mean age of 50.4 years. The average alpha angle was 45.10°, SD=8.6. One quarter of the hips showed alpha angle greater than or equal to 50°; among men the prevalence was 34%, and among women, 11%. We found indicative radiographic signs of femoroacetabular impingement in 42.6% of hips, whether femoral or acetabular, and the increased alpha angle was related to the decrease in hip internal rotation (p<0.001). CONCLUSION: the radiographic findings of femoroacetabular impingement in asymptomatic patients were frequent in the studied sample. The increase in alpha angle was associated with decreased internal rotation.


2011 ◽  
Vol 93 (19) ◽  
pp. e111(1)-e111(10) ◽  
Author(s):  
Ashley L Kapron ◽  
Andrew E Anderson ◽  
Stephen K Aoki ◽  
Lee G Phillips ◽  
David J Petron ◽  
...  

2017 ◽  
Vol 26 (7) ◽  
pp. 1943-1949 ◽  
Author(s):  
Yoshitomo Saita ◽  
Masashi Nagao ◽  
Takayuki Kawasaki ◽  
Yohei Kobayashi ◽  
Keiji Kobayashi ◽  
...  

2018 ◽  
Vol 29 (2) ◽  
pp. 204-208 ◽  
Author(s):  
Gökhan Polat ◽  
Ufuk Arzu ◽  
Engin Dinç ◽  
Bülent Bayraktar

Purpose: The aim of this study was to determine the prevalence of asymptomatic radiographic findings of femoroacetabular impingement (FAI) in paediatric football players in different age groups and to investigate aetiological factors. Methods: Paediatric male athletes between 10 and 17 years of age from 8 soccer teams were recruited. In addition to an annual control check-up, anteroposterior pelvis and frog-leg radiographs as well as the curriculum vitae of the athletes, their injuries, and real-time complaints were recorded. The alpha angle, lateral centre-edge angle, Tönnis angle, and collodiaphyseal angle were measured and morphological abnormalities were noted. Results: There were 214 male football players with a mean age of 13.4 ± 3.2 years included in the study. In the morphological analysis of hips, there was FAI in 30% of the athletes. In the analysis of FAI prevalence in 3 subgroups based on age (Group 1: 10–12 years [ n = 25], Group 2: 13–15 years [ n = 104], Group 3: 16–17 years [ n = 85]), there was 0% FAI in Group 1, 19.1% in Group 2 and 60% in Group 3. In the analysis of aetiological factors, there was no significant difference between the right and left hips of players regarding alpha angles and FAI prevalence. However, the prevalence of FAI was higher in players who had been playing football for 3 years or more and who had been training for 12.5 hours/week or more. Conclusion: Training for 12.5 hours or more per week in paediatric football players doubled the risk development of FAI morphology.


Author(s):  
Shahnaz Hasan ◽  
Gokulakannan Kandasamy ◽  
Danah Alyahya ◽  
Asma Alonazi ◽  
Azfar Jamal ◽  
...  

The main objectives of this study were to evaluate the short-term effects of resisted sprint and plyometric training on sprint performance together with lower limb physiological and functional performance in collegiate football players. Ninety collegiate football players participated in this three-arm, parallel group randomized controlled trial study. Participants were randomly divided into a control group and two experimental groups: resisted sprint training (RST) (n = 30), plyometric training (PT) (n = 30), and a control group (n = 30). Participants received their respective training program for six weeks on alternate days. The primary outcome measures were a knee extensor strength test (measured by an ISOMOVE dynamometer), a sprint test and a single leg triple hop test. Measurements were taken at baseline and after 6 weeks post-training. Participants, caregivers, and those assigning the outcomes were blinded to the group assignment. A mixed design analysis of variance was used to compare between groups, within-group and the interaction between time and group. A within-group analysis revealed a significant difference (p < 0.05) when compared to the baseline with the 6 weeks post-intervention scores for all the outcomes including STN (RST: d = 1.63; PT: d = 2.38; Control: d = 2.26), ST (RST: d = 1.21; PT: d = 1.36; Control: d = 0.38), and SLTHT (RST: d = 0.76; PT: d = 0.61; Control: d = 0.18). A sub-group analysis demonstrated an increase in strength in the plyometric training group (95% CI 14.73 to 15.09, p = 0.00), an increase in the single leg triple hop test in the resisted sprint training group (95% CI 516.41 to 538.4, p = 0.05), and the sprint test was also improved in both experimental groups (95% CI 8.54 to 8.82, p = 0.00). Our findings suggest that, during a short-term training period, RST or PT training are equally capable of enhancing the neuromechanical capacities of collegiate football players. No adverse events were reported by the participants.


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