scholarly journals Clinical and biomechanical outcomes of rehabilitation targeting intersegmental control in athletic groin pain: prospective cohort of 205 patients

2018 ◽  
Vol 52 (16) ◽  
pp. 1054-1062 ◽  
Author(s):  
Enda King ◽  
Andrew Franklyn-Miller ◽  
Chris Richter ◽  
Eamon O’Reilly ◽  
Mark Doolan ◽  
...  
Keyword(s):  
Groin Pain ◽  
Body Movement ◽  
Three Dimensional ◽  
Case Series ◽  
Cutting Performance ◽  
Biomechanical Analysis ◽  
Return To Play ◽  
Whole Body ◽  
3D Analysis ◽  
Pain Provocation

BackgroundClinical assessments and rehabilitation in athletic groin pain (AGP) have focused on specific anatomical structures and uniplanar impairments rather than whole body movement.ObjectiveTo examine the effectiveness of rehabilitation that targeted intersegmental control in patients with AGP and to investigate post rehabilitation changes in cutting biomechanics.MethodsTwo hundred and five patients with AGP were rehabilitated focusing on clinical assessment of intersegmental control, linear running and change of direction mechanics in this prospective case series. Hip and Groin Outcome Score (HAGOS) was the primary outcome measure. Secondary measures included pain-free return to play rates and times, pain provocation on squeeze tests and three-dimensional (3D) biomechanical analysis during a 110° cutting manoeuvre.ResultsFollowing rehabilitation, patients demonstrated clinically relevant improvements in HAGOS scores (effect size (ES): 0.6–1.7). 73% of patients returned to play pain-free at a mean of 9.9 weeks (±3.5). Squeeze test values also improved (ES: 0.49–0.68). Repeat 3D analysis of the cutting movement demonstrated reductions in ipsilateral trunk side flexion (ES: 0.79) and increased pelvic rotation in the direction of travel (ES: 0.76). Changes to variables associated with improved cutting performance: greater centre of mass translation in the direction of travel relative to centre of pressure (ES: 0.4), reduced knee flexion angle (ES: 0.3) and increased ankle plantar flexor moment (ES: 0.48) were also noted.ConclusionsRehabilitation focused on intersegmental control was associated with improved HAGOS scores, high rates of pain-free return to sporting participation and biomechanical changes associated with improved cutting performance across a range of anatomical diagnoses seen in AGP.

scholarly journals Effect of Leg Dominance on The Center-of-Mass Kinematics During an Inside-of-the-Foot Kick in Amateur Soccer Players

2014 ◽  
Vol 42 (1) ◽  
pp. 51-61 ◽  
Author(s):  
Matteo Zago ◽  
Andrea Francesco Motta ◽  
Andrea Mapelli ◽  
Isabella Annoni ◽  
Christel Galvani ◽  
...  
Keyword(s):  
Body Movement ◽  
Center Of Mass ◽  
Three Dimensional ◽  
The Body ◽  
Soccer Players ◽  
Upper Body ◽  
Whole Body ◽  
Movement Velocity ◽  
Ground Support ◽  
Analysis System

Abstract Soccer kicking kinematics has received wide interest in literature. However, while the instep-kick has been broadly studied, only few researchers investigated the inside-of-the-foot kick, which is one of the most frequently performed techniques during games. In particular, little knowledge is available about differences in kinematics when kicking with the preferred and non-preferred leg. A motion analysis system recorded the three-dimensional coordinates of reflective markers placed upon the body of nine amateur soccer players (23.0 ± 2.1 years, BMI 22.2 ± 2.6 kg/m2), who performed 30 pass-kicks each, 15 with the preferred and 15 with the non-preferred leg. We investigated skill kinematics while maintaining a perspective on the complete picture of movement, looking for laterality related differences. The main focus was laid on: anatomical angles, contribution of upper limbs in kick biomechanics, kinematics of the body Center of Mass (CoM), which describes the whole body movement and is related to balance and stability. When kicking with the preferred leg, CoM displacement during the ground-support phase was 13% higher (p<0.001), normalized CoM height was 1.3% lower (p<0.001) and CoM velocity 10% higher (p<0.01); foot and shank velocities were about 5% higher (p<0.01); arms were more abducted (p<0.01); shoulders were rotated more towards the target (p<0.01, 6° mean orientation difference). We concluded that differences in motor control between preferred and non-preferred leg kicks exist, particularly in the movement velocity and upper body kinematics. Coaches can use these results to provide effective instructions to players in the learning process, moving their focus on kicking speed and upper body behavior

scholarly journals Stretching for Recovery from Groin Pain or Injury in Athletes: A Critical and Systematic Review

2021 ◽  
Vol 6 (3) ◽  
pp. 73
Author(s):  
José Afonso ◽  
João Gustavo Claudino ◽  
Hélder Fonseca ◽  
Daniel Moreira-Gonçalves ◽  
Victor Ferreira ◽  
...  
Keyword(s):  
Groin Pain ◽  
Case Series ◽  
Return To Sport ◽  
Return To Play ◽  
Cochrane Library ◽  
Eligibility Criteria ◽  
Rehabilitation Protocols ◽  
Recovery Protocols ◽  
Meta Analyses ◽  
Specific Contribution

Stretching is usually used as part of rehabilitation protocols for groin pain or injury, but its specific contribution to and within multimodal recovery protocols is unclear. Our goal was to systematically review the effects of stretching for the recovery from groin pain or injury. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed, with eligibility criteria defined according to PICOS: (Participants) athletes with groin pain or injuries; (Interventions) interventions with stretching as the differentiating factor; (Comparators) comparators not applying stretching; (Outcomes) symptom remission or improvement and/or time to return to sport and/or return to play; (Study design) randomized controlled trials. Searches were performed on 26 March 2021, in CINAHL, Cochrane Library, EBSCO, EMBASE, PEDro, PubMed, Scielo, Scopus, SPORTDiscus, and Web of Science, with no limitations regarding language or date, and no filters. Of 117 retrieved results, 65 were duplicates and 49 were excluded at the screening stage. The three articles eligible for full-text analysis failed to comply with one or more inclusion criteria (participants, intervention and/or comparators). We then went beyond the protocol and searched for non-randomized trials and case series, but no intervention was found where stretching was the differentiating factor. We found no trials specifically assessing the effects of stretching on recovery or improvement of groin pain or injury in athletes. Currently, the efficacy of these interventions is unknown, and more research is warranted.

scholarly journals Outcomes following surgical management of inguinal-related groin pain in athletes: a case series

2020 ◽  
Vol 7 (1) ◽  
pp. 103-108
Author(s):  
Michael Gerhardt ◽  
Josh Christiansen ◽  
Benjamin Sherman ◽  
Alejandro Miranda ◽  
William Hutchinson ◽  
...  
Keyword(s):  
Groin Pain ◽  
Surgical Intervention ◽  
Case Series ◽  
Return To Sport ◽  
Scar Tissue ◽  
Nerve Entrapment ◽  
Return To Play ◽  
Retrospective Case ◽  
Operative Findings

Abstract To determine the outcomes of a limited surgical intervention, consisting of neurolysis, inguinal wall repair and/or adductor debridement of adhesions based on intraoperative findings. Retrospective case series. Outpatient orthopedic/general surgery clinic. Fifty-one athletes treated surgically for inguinal-related groin pain from 2009 to 2015. Limited surgical intervention, consisting of neurolysis, inguinal wall repair and/or adductor debridement based on intra-operative findings. Ability to return to sport at the same level, time to return to play. Fifty-one athletes were included in the study with an average follow-up of 4.42 years (range 2.02–7.01). The average age was 24.2 years (range 16–49) and consisted of 94.0% males and 6.0% females. Nerve entrapment was demonstrated in 96.2% of cases with involvement of the ilioinguinal in 92.5%, the iliohypogastric in 30.8% and the genitofemoral in 13.2%. Attenuation of the posterior inguinal wall was present and repaired in 79.3% of cases. Scar tissue was present around the adductor origin and required debridement in 56.7% of cases. Forty-nine (96.1%) athletes returned to sport at the same level of play at an average of 5.9 weeks. Two athletes required a revision surgery. High rates of return to sport were achieved after surgery for inguinal-related groin pain that addresses the varying pathology and associated nerve entrapment.

Rehabilitation of Persistent Post-Concussion Symptoms in Retired and Active NHL Players: Clinical Case Series

Neurology ◽  
2021 ◽  
Vol 98 (1 Supplement 1) ◽  
pp. S23.3-S24
Author(s):  
Matthew Michael Antonucci ◽  
Emily Kalambaheti ◽  
Derek Barton ◽  
Shaun Kornfeld ◽  
Kenneth Jay
Keyword(s):  
Reaction Time ◽  
Choice Reaction Time ◽  
Case Series ◽  
Effect Sizes ◽  
Return To Play ◽  
Whole Body ◽  
Symptom Duration ◽  
Digit Symbol ◽  
Persistent Symptoms ◽  
Functional Neurology

ObjectiveTo present the evaluation of 12 rehabilitation cases as a case series in sports-related concussion.BackgroundSport-related concussion is a common injury in the NHL. While most athletes recover within few weeks of sustaining a mild head injury, some still experience persistent symptoms for months or years after following recommended recovery and return to play guidelines.Design/MethodsTwelve male NHL athletes (6/6 active/retired; mean age/height/weight/symptom duration/#concussions [SD]: 33.4 years [7.9]: 185.8 cm [5.1]: 94.8 kg [14.6]; 121 wks: [156]; 4.3 [2.3]) with persistent but mild post-concussion symptoms were treated for 10 sessions at an outpatient neurorehabilitation center specializing in functional neurology. The athletes were evaluated before- and after treatment utilizing the C3 Logix platform. The interventions included joint manipulation, neuromuscular re-education, vestibular rehabilitation in a whole-body off-axis rotational device, orthoptic exercises, and cognitive training. Graded Symptoms Checklist (0–162), Digit-Symbol Coding, Simple- and Choice Reaction Time, and Trail Making Test A/B were analyzed in Graphpad PRISM. 9.1.0 by multiple paired t-tests with Holm-Šídák corrections. Results are reported as differences-of-means pre- to post-treatment (SE) with Cohen's d effect sizes [ES] (0.2, 0.5, 0.8 represents small, medium, and large effect sizes, respectively). p-values <0.05 were considered significant.ResultsGraded Symptom Checklist score (p < 0.001): −25.1 (4.0) [1.83]; Digit-Symbol Matching speed (#symbols) (p = 0.03): 6.2 (1.9) [0.92]; Simple reaction time (ms) (p = 0.03): −74.7 (22.9) [0.94]; Choice reaction time (ms) (p = 0.009): −106.1 (26.0) [1.18]; Trails A (s) (p = 0.04) [0.80]: −2.6 (0.9); and Trails B (s) (p = 0.04): −6.0 (2.2) [0.79].ConclusionsThe present case series shows that a functional neurology approach of multimodal short duration intensive therapies can produce clinically meaningful improvements with large and very large effect sizes, in both the concussion symptoms and neurocognitive performance, of 12 professional NHL players experiencing symptom stagnation.

scholarly journals A biomechanical analysis of the stand-up paddle board stroke: a comparative study

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e8006
Author(s):  
Ben Schram ◽  
James Furness ◽  
Kevin Kemp-Smith ◽  
Jason Sharp ◽  
Matthew Cristini ◽  
...  
Keyword(s):  
Injury Risk ◽  
Three Dimensional ◽  
Elbow Flexion ◽  
Biomechanical Analysis ◽  
Whole Body ◽  
Distributed Data ◽  
Cross Sectional ◽  
Injury Rates ◽  
Shoulder Flexion ◽  
Body Kinematic

Background Stand-up paddle boarding (SUP) is a rapidly growing global aquatic sport, with increasing popularity among participants within recreation, competition and rehabilitation. To date, few scientific studies have focused on SUP. Further, there is no research examining the biomechanics of the SUP paddle stroke. The purpose of this study was to investigate whether variations in kinematics existed among experienced and inexperienced SUP participants using three-dimensional motion analysis. This data could be of significance to participants, researchers, coaches and health practitioners to improve performance and inform injury minimization strategies. Methods A cross-sectional observational design study was performed with seven experienced and 19 inexperienced paddlers whereby whole-body kinematic data were acquired using a six-camera Vicon motion capture system. Participants paddled on a SUP ergometer while three-dimensional range of motion (ROM) and peak joint angles were calculated for the shoulders, elbows, hips and trunk. Mann–Whitney U tests were conducted on the non-normally distributed data to evaluate differences between level of expertise. Results Significant differences in joint kinematics were found between experienced and inexperienced participants, with inexperienced participants using greater overall shoulder ROM (78.9° ± 24.9° vs 56.6° ± 17.3°, p = 0.010) and less hip ROM than the experienced participants (50.0° ± 18.5° vs 66.4° ± 11.8°, p = 0.035). Experienced participants demonstrated increased shoulder motion at the end of the paddle stoke compared to the inexperienced participants (74.9° ± 16.3° vs 35.2° ± 28.5°, p = 0.001 minimum shoulder flexion) and more extension at the elbow (6.0° ± 9.2° minimum elbow flexion vs 24.8° ± 13.5°, p = 0.000) than the inexperienced participants. Discussion The results of this study indicate several significant kinematic differences between the experienced and inexperienced SUP participants. These variations in technique were noted in the shoulder, elbow and hip and are evident in other aquatic paddling sports where injury rates are higher in these joints. These finding may be valuable for coaches, therapists and participants needing to maximize performance and minimize injury risk during participation in SUP.

scholarly journals Filtering Biomechanical Signals in Movement Analysis

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4580
Author(s):  
Francesco Crenna ◽  
Giovanni Battista Rossi ◽  
Marta Berardengo
Keyword(s):  
Measurement Uncertainty ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Movement Analysis ◽  
Analytical Signal ◽  
Human Movement ◽  
Reference Points ◽  
Biomechanical Analysis ◽  
Method Performance ◽  
Acceleration Signal

Biomechanical analysis of human movement is based on dynamic measurements of reference points on the subject’s body and orientation measurements of body segments. Collected data include positions’ measurement, in a three-dimensional space. Signal enhancement by proper filtering is often recommended. Velocity and acceleration signal must be obtained from position/angular measurement records, needing numerical processing effort. In this paper, we propose a comparative filtering method study procedure, based on measurement uncertainty related parameters’ set, based upon simulated and experimental signals. The final aim is to propose guidelines to optimize dynamic biomechanical measurement, considering the measurement uncertainty contribution due to the processing method. Performance of the considered methods are examined and compared with an analytical signal, considering both stationary and transient conditions. Finally, four experimental test cases are evaluated at best filtering conditions for measurement uncertainty contributions.

scholarly journals Performance After Anterior Cruciate Ligament Reconstruction in National Basketball Association Players

2021 ◽  
Vol 9 (2) ◽  
pp. 232596712098164
Author(s):  
Steven F. DeFroda ◽  
Devan D. Patel ◽  
John Milner ◽  
Daniel S. Yang ◽  
Brett D. Owens
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Odds Ratio ◽  
Cruciate Ligament ◽  
Case Series ◽  
National Basketball Association ◽  
High Rate ◽  
Return To Play ◽  
Lower Percentage ◽  
Anterior Cruciate

Background: Anterior cruciate ligament (ACL) injury in National Basketball Association (NBA) players can have a significant impact on player longevity and performance. Current literature reports a high rate of return to play, but there are limited data on performance after ACL reconstruction (ACLR). Purpose/Hypothesis: To determine return to play and player performance in the first and second seasons after ACLR in NBA players. We hypothesized that players would return at a high rate. However, we also hypothesized that performance in the first season after ACLR would be worse as compared with the preinjury performance, with a return to baseline by postoperative year 2. Study Design: Case series; Level of evidence, 4. Methods: An online database of NBA athlete injuries between 2010 and 2019 was queried using the term ACL reconstruction. For the included players, the following data were recorded: name; age at injury; position; height, weight, and body mass index; handedness; NBA experience; dates of injury, surgery, and return; knee affected; and postoperative seasons played. Regular season statistics for 1 preinjury season and 2 postoperative seasons were compiled and included games started and played, minutes played, and player efficiency rating. Kaplan-Meier survivorship plots were computed for athlete return-to-play and retirement endpoints. Results: A total of 26 athletes underwent ACLR; of these, 84% (95% CI, 63.9%-95.5%) returned to play at a mean 372.5 days (95% CI, 323.5-421.5 days) after surgery. Career length after injury was a mean of 3.36 seasons (95% CI, 2.27-4.45 seasons). Factors that contributed to an increased probability of return to play included younger age at injury (odds ratio, 0.71 [95% CI, 0.47-0.92]; P = .0337) and fewer years of experience in the NBA before injury (odds ratio, 0.70 [95% CI, 0.45-0.93]; P = .0335). Postoperatively, athletes played a significantly lower percentage of total games in the first season (48.4%; P = .0004) and second season (62.1%; P = .0067) as compared with the preinjury season (78.5%). Player efficiency rating in the first season was 19.3% less than that in the preinjury season ( P = .0056). Performance in the second postoperative season was not significantly different versus preinjury. Conclusion: NBA players have a high rate of RTP after ACLR. However, it may take longer than a single season for elite NBA athletes to return to their full preinjury performance. Younger players and those with less NBA experience returned at higher rates.

scholarly journals Symptom cluster is associated with prolonged return-to-play in symptomatic athletes with acute respiratory illness (including COVID-19): a cross-sectional study—AWARE study I

2021 ◽  
pp. bjsports-2020-103782
Author(s):  
Martin Schwellnus ◽  
Nicola Sewry ◽  
Carolette Snyders ◽  
Kelly Kaulback ◽  
Paola Silvia Wood ◽  
...  
Keyword(s):  
Online Survey ◽  
Severe Disease ◽  
Univariate Analysis ◽  
Respiratory Illness ◽  
Symptom Cluster ◽  
Return To Play ◽  
Whole Body ◽  
Multiple Model ◽  
Acute Respiratory Illness ◽  
Cross Sectional

BackgroundThere are no data relating symptoms of an acute respiratory illness (ARI) in general, and COVID-19 specifically, to return to play (RTP).ObjectiveTo determine if ARI symptoms are associated with more prolonged RTP, and if days to RTP and symptoms (number, type, duration and severity) differ in athletes with COVID-19 versus athletes with other ARI.DesignCross-sectional descriptive study.SettingOnline survey.ParticipantsAthletes with confirmed/suspected COVID-19 (ARICOV) (n=45) and athletes with other ARI (ARIOTH) (n=39).MethodsParticipants recorded days to RTP and completed an online survey detailing ARI symptoms (number, type, severity and duration) in three categories: ‘nose and throat’, ‘chest and neck’ and ‘whole body’. We report the association between symptoms and RTP (% chance over 40 days) and compare the days to RTP and symptoms (number, type, duration and severity) in ARICOV versus ARIOTH subgroups.ResultsThe symptom cluster associated with more prolonged RTP (lower chance over 40 days; %) (univariate analysis) was ‘excessive fatigue’ (75%; p<0.0001), ‘chills’ (65%; p=0.004), ‘fever’ (64%; p=0.004), ‘headache’ (56%; p=0.006), ‘altered/loss sense of smell’ (51%; p=0.009), ‘Chest pain/pressure’ (48%; p=0.033), ‘difficulty in breathing’ (48%; p=0.022) and ‘loss of appetite’ (47%; p=0.022). ‘Excessive fatigue’ remained associated with prolonged RTP (p=0.0002) in a multiple model. Compared with ARIOTH, the ARICOV subgroup had more severe disease (greater number, more severe symptoms) and more days to RTP (p=0.0043).ConclusionSymptom clusters may be used by sport and exercise physicians to assist decision making for RTP in athletes with ARI (including COVID-19).

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