Effects of Whole-Season Training and Match-Play on Hip Adductor and Abductor Muscle Strength in Soccer Players: A Pilot Study

2021 ◽  
pp. 194173812110537
Author(s):  
Víctor Moreno-Pérez ◽  
Marcelo Peñaranda ◽  
Aitor Soler ◽  
Álvaro López-Samanes ◽  
Per Aagaard ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Adductor Muscle ◽  
Soccer Players ◽  
Strength Ratio ◽  
Abductor Muscle ◽  
Match Play ◽  
Hip Abductor ◽  
Soccer Training ◽  
Groin Injury ◽  
Abductor Strength

Background: Previous investigations have associated weakness of hip muscles with a higher likelihood of developing hip groin injury. However, no previous investigation has examined the influence of soccer training and match-play during the season on maximal isometric hip adductor and abductor muscle strength. Hypothesis: Maximal hip adductor and abductor muscle strength would increase after the preseason, maintaining relatively constant levels across the soccer season. Design: Cross-sectional study. Level of Evidence: Level 3. Methods: A total of 26 semiprofessional male soccer players underwent measurements of maximal isometric hip adductor and abductor muscle strength at 3 time points of the soccer season: preseason, midseason, and end-season to investigate the longitudinal effect of soccer training and competition during a complete season on maximal isometric hip adductor and abductor muscle strength in the semiprofessional Spanish soccer player. Results: Compared with preseason, hip abductor muscle strength increased in the midseason (14.2% and 17.1%, for dominant and nondominant limb, respectively; P < 0.001) and in the end-season (13.1%; P = 0.005, and 14.1%; P < 0.005). In contrast, hip adductor muscle strength remained unchanged across the season in both limbs. As a result, the adductor/abductor strength ratio in the nondominant limb was reduced at midseason and end-season time points (−14.6% and −18.4%, respectively; P < 0.001) with a corresponding tendency in the dominant limb (−9.3% and −15.0%, respectively; P > 0.05). Conclusion: While maximal hip abductor muscle strength increased throughout the season, hip adductor muscle strength remained stable across the season. This produced a substantial deficit in hip adductor/abductor strength ratio at midseason and end-season. Clinical Relevance: The progressive imbalance in adductor/abductor strength across the soccer season may be an indicator of increased risk of groin injury and may reinforce the need for preventive rehabilitation activities focused on enhancing adductor muscle strength.

scholarly journals Hip Abductor Muscle Strength Deficit as a Risk Factor for Inversion Ankle Sprain in Male College Soccer Players: A Prospective Cohort Study

2021 ◽  
Vol 9 (7) ◽  
pp. 232596712110202
Author(s):  
Kohei Kawaguchi ◽  
Shuji Taketomi ◽  
Yuri Mizutani ◽  
Hiroshi Inui ◽  
Ryota Yamagami ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Cohort Study ◽  
Muscle Strength ◽  
Ankle Sprain ◽  
Soccer Players ◽  
Ankle Sprains ◽  
Abductor Muscle ◽  
Hip Abductor ◽  
Abductor Strength

Background: Previous studies have attempted to determine whether certain risk factors can predict the occurrence of inversion ankle sprains in male collegiate soccer players. However, no consensus has been reached on the predictive risk factors of inversion ankle sprain in this population. Purpose: To identify risk factors for inversion ankle sprains among male collegiate soccer players. Study Design: Cohort study; Level of evidence, 2. Methods: Included were 145 male collegiate soccer players in Japan who were assessed during a preseason medical checkup for potential risk factors of inversion ankle sprain. The preseason assessment included anthropometric measurements, joint laxity and flexibility, muscle flexibility, muscle strength, and balance ability, with a total of 33 variables. The participants were monitored during the 2019 season for inversion ankle sprains as diagnosed by physicians. Results: A total of 31 inversion ankle sprains in 31 players (21.4%) occurred during the season. Only the measured isometric hip abductor strength was significantly lower in injured players as compared with uninjured players. Logistic regression analysis revealed measured hip abductor muscle strength deficit as a significant risk factor for inversion ankle sprain (odds ratio, 0.978 [95% CI, 0.976-0.999]; P = .05). Conclusion: Hip abductor strength deficit was a risk factor for inversion ankle sprain in the study population. This finding could be useful for the prevention of inversion ankle sprains in male collegiate soccer players.

scholarly journals Abductor muscle strength deficit in patients after total hip arthroplasty for hip osteoarthritis: a protocol for a systematic review and meta-analysis

BMJ Open ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. e035413
Author(s):  
Petros Ismailidis ◽  
Peter Kvarda ◽  
Werner Vach ◽  
Christian Appenzeller-Herzog ◽  
Annegret Mündermann
Keyword(s):  
Muscle Strength ◽  
Hip Osteoarthritis ◽  
Publication Date ◽  
Review Author ◽  
Sufficient Information ◽  
Cochrane Central Register ◽  
Abductor Muscle ◽  
Total Hip ◽  
Hip Abductor ◽  
Abductor Strength

IntroductionConservation of abductor muscle strength is directly associated with physical function after total hip replacement (THA). Although many studies have tried to explore and quantify a potential abductor muscle strength deficit after THA as well as identify possible causes and treatment options, this topic has not been addressed systematically.Methods and analysisHuman-based studies reporting measurements of hip abductor strength will be included in this review. Studies reporting on hip abductor strength measured manually or isometric measurements at an abduction angle other than 0° will not be considered. No restriction will be placed on study design, publication date operative approach, prosthesis design, age and sex of the patients or severity of OA. Data sources will be Embase via embase.com, Medline ALL via Ovid and the Cochrane Central Register of Controlled Trials. The preliminary search was conducted on 5 May 2019. Data regarding absolute values or torque ratio of hip abductor torque between sides as well as patient demographic data, surgical approaches and rehabilitation protocols will be extracted. The assessment of quality and risk of bias will be performed with the modified Newcastle-Ottawa Scale. The screening, data extraction and quality assessment will be performed by two reviewers independently. Where necessary, a third review author will make a final judgement. Narrative synthesis as well as tabular presentation of the extracted data will be included. Whenever possible, metaregression and subgroup specific meta-analyses will be used to investigate the influence of time since THA and type of measurement (isokinetic or isometric) on the different outcomes. In case of sufficient information, these analyses will be extended to include characteristics such as age, sex, surgical approach or rehabilitation programme.Ethics and disseminationNo ethics approval is required. The results will be disseminated through peer-reviewed publications and conference presentations.PROSPERO registration numberCRD42020153185.

scholarly journals Hip abductor muscle strength in patients after total or unicompartmental knee arthroplasty for knee osteoarthritis or avascular necrosis: a systematic review and meta-analysis protocol

BMJ Open ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. e038770
Author(s):  
Peter Kvarda ◽  
Corina Nüesch ◽  
Christian Egloff ◽  
Christian Appenzeller-Herzog ◽  
Annegret Mündermann ◽  
...  
Keyword(s):  
Systematic Review ◽  
Muscle Strength ◽  
Knee Osteoarthritis ◽  
Knee Arthroplasty ◽  
Surgical Approach ◽  
Unicompartmental Knee Arthroplasty ◽  
Patient Characteristics ◽  
Abductor Muscle ◽  
Hip Abductor ◽  
Abductor Strength

IntroductionReduced hip abductor strength may indirectly lead to changes in knee kinematics and functional impairment and has been reported in patients with patellofemoral pain and knee osteoarthritis (OA). Limited information is available regarding hip abductor strength following total or unicompartmental knee arthroplasty (TKA/UKA). The aims of this systematic review are to synthesise the evidence of hip abductor muscle strength deficits in patients following TKA/UKA and to determine influencing factors for these deficits.Methods and analysisEmbase, Medline, SportDiscus, the Web of Science Core Collection and Scopus will be searched for human-based clinical studies investigating hip abductor muscle strength after TKA/UKA for knee OA or avascular necrosis (AVN). Articles studying hip abductor strength after knee arthroplasty for post-traumatic OA will not be considered. No restriction on study design, prosthesis design, surgical approach, patient characteristics or severity of OA/AVN will be applied. We will search articles published between 1 January 1990 and the date of our last search. Only articles in English or German language will be considered for inclusion. Studies reporting manually measured muscle strength or measurements performed at hip abduction angles other than 0° will be excluded. References will be screened by two reviewers independently. Where necessary, a third author will make the final decision. The assessment of quality and risk of bias will be performed with the modified Newcastle-Ottawa scale. Data will be extracted and presented in a tabular form. Depending on availability, comparable subgroup and meta-analyses will be conducted. Patient characteristics such as age, sex and surgical approach or rehabilitation programme will be analysed, if sufficient data are available.Ethics and disseminationNo ethics approval is required. The results will be published in a peer-reviewed journal and as conference presentation.

scholarly journals Experimentally Reduced Hip-Abductor Muscle Strength and Frontal-Plane Biomechanics During Walking

2015 ◽  
Vol 50 (4) ◽  
pp. 385-391 ◽  
Author(s):  
Michael B. Pohl ◽  
Karen D. Kendall ◽  
Chirag Patel ◽  
J. Preston Wiley ◽  
Carolyn Emery ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Knee Osteoarthritis ◽  
Nerve Block ◽  
Frontal Plane ◽  
Knee Adduction Moment ◽  
Abductor Muscle ◽  
Hip Abduction ◽  
Hip Abductor ◽  
Abduction Strength ◽  
Abductor Strength

Context Researchers have postulated that reduced hip-abductor muscle strength may have a role in the progression of knee osteoarthritis by increasing the external knee-adduction moment. However, the relationship between hip-abductor strength and frontal-plane biomechanics remains unclear. Objective To experimentally reduce hip-abduction strength and observe the subsequent changes in frontal-plane biomechanics. Design Descriptive laboratory study. Setting Research laboratory. Patients or Other Participants Eight healthy, recreationally active men (age = 27 ± 6 years, height = 1.75 ± 0.11 m, mass = 76.1 ± 10.0 kg). Intervention(s) All participants underwent a superior gluteal nerve block injection to reduce the force output of the hip-abductor muscle group. Main Outcome Measure(s) Maximal isometric hip-abduction strength and gait biomechanical data were collected before and after the injections. Gait biomechanical variables collected during walking consisted of knee- and hip-adduction moments and impulses and the peak angles of contralateral pelvic drop, hip adduction, and ipsilateral trunk lean. Results Hip-abduction strength was reduced after the injection (P = .001) and remained lower than baseline values at the completion of the postinjection gait data collection (P = .02). No alterations in hip- or knee-adduction moments (hip: P = .11; knee: P = .52) or impulses (hip: P = .16; knee: P = .41) were found after the nerve block. Similarly, no changes in angular kinematics were observed for contralateral pelvic drop (P = .53), ipsilateral trunk lean (P = .78), or hip adduction (P = .48). Conclusions A short-term reduction in hip-abductor strength was not associated with alterations in the frontal-plane gait biomechanics of young, healthy men. Further research is needed to determine whether a similar relationship is true in older adults with knee osteoarthritis.

scholarly journals Changes in Knee Biomechanics After a Hip-Abductor Strengthening Protocol for Runners With Patellofemoral Pain Syndrome

2011 ◽  
Vol 46 (2) ◽  
pp. 142-149 ◽  
Author(s):  
Reed Ferber ◽  
Karen D. Kendall ◽  
Lindsay Farr
Keyword(s):  
Muscle Strength ◽  
Knee Joint ◽  
Pain Syndrome ◽  
Patellofemoral Pain Syndrome ◽  
Patellofemoral Pain ◽  
Genu Valgum ◽  
Abductor Muscle ◽  
Muscle Strengthening ◽  
Peak Knee ◽  
Hip Abductor

Abstract Context: Very few authors have investigated the relationship between hip-abductor muscle strength and frontal-plane knee mechanics during running. Objective: To investigate this relationship using a 3-week hip-abductor muscle-strengthening program to identify changes in strength, pain, and biomechanics in runners with patellofemoral pain syndrome (PFPS). Design: Cohort study. Setting: University-based clinical research laboratory. Patients or Other Participants: Fifteen individuals (5 men, 10 women) with PFPS and 10 individuals without PFPS (4 men, 6 women) participated. Intervention(s): The patients with PFPS completed a 3-week hip-abductor strengthening protocol; control participants did not. Main Outcome Measure(s): The dependent variables of interest were maximal isometric hip-abductor muscle strength, 2-dimensional peak knee genu valgum angle, and stride-to-stride knee-joint variability. All measures were recorded at baseline and 3 weeks later. Between-groups differences were compared using repeated-measures analyses of variance. Results: At baseline, the PFPS group exhibited reduced strength, no difference in peak genu valgum angle, and increased stride-to-stride knee-joint variability compared with the control group. After the 3-week protocol, the PFPS group demonstrated increased strength, less pain, no change in peak genu valgum angle, and reduced stride-to-stride knee-joint variability compared with baseline. Conclusions: A 3-week hip-abductor muscle-strengthening protocol was effective in increasing muscle strength and decreasing pain and stride-to-stride knee-joint variability in individuals with PFPS. However, concomitant changes in peak knee genu valgum angle were not observed.

scholarly journals Training duration may not be a predisposing factor in potential maladaptations in talent development programmes that promote early specialisation in elite youth soccer

2018 ◽  
Vol 13 (5) ◽  
pp. 674-678 ◽  
Author(s):  
Thomas E Brownlee ◽  
Andy O’Boyle ◽  
Ryland Morgans ◽  
James P Morton ◽  
Robert M Erskine ◽  
...  
Keyword(s):  
Resistance Training ◽  
Body Mass ◽  
Age Groups ◽  
Talent Development ◽  
Soccer Players ◽  
Predisposing Factor ◽  
Match Play ◽  
Training Time ◽  
Youth Soccer ◽  
Soccer Training

Purpose To determine whether training duration is a predisposing factor in potential maladaptations in talent development programmes that promote early specialisation in elite youth soccer. Methods Training times and type of 184 elite soccer players, from the under-9 to under-21 age groups (age 9.4 to 18.4 yrs; stature 1.38 to 1.82 m; body mass 32.2 to 76.2 kg) were recorded. Results Total training time progressively increased between the under-9 (268 ± 25 min/week) and under-14 (477 ± 19 min/week) groups with the majority of training time (96.5 ± 3.9%) consisting of soccer training and matches. Total training time then subsequently reduced from under-14 to under-15 (266 ± 77 min/week) groups, with no differences in training time between under-15 and under-21. Only under-15 to under-21 players completed resistance training; this inclusion coincided with a reduction in soccer training and match play when compared to time spent in these activities for younger groups (73.8 ± 3.2% of total training). Conclusion Data suggest that although the majority of training is focused on technical development, the training duration as a whole is unlikely to contribute to potential maladaptations in talent development programmes in elite youth soccer.

scholarly journals Measuring the Hip Adductor to Abductor Strength Ratio in Ice Hockey and Soccer Players: A Critically Appraised Topic

2020 ◽  
Vol 29 (1) ◽  
pp. 116-121
Author(s):  
Robert Rodriguez
Keyword(s):  
Ice Hockey ◽  
Soccer Players ◽  
Injury Incidence ◽  
Strength Ratio ◽  
Bottom Line ◽  
Injury Rates ◽  
Final Study ◽  
Hockey Players ◽  
Level 3 ◽  
Abductor Strength

Clinical Scenario: Ice hockey and soccer are both dynamic sports that involve continuous, unpredictable play. These athletes consistently demonstrate higher rates of groin strains compared with other contact sports. Measuring the hip adductor/abductor ratio has the potential to expose at-risk players, reduce injury rates, and preserve groin health in players with chronic strains. Focused Clinical Question: What is the clinical utility of measuring the hip adductor/abductor ratio for preseason and in-season ice hockey and soccer players? Summary of Key Findings: Three studies, all of which were prospective cohort designs, were included. One study involved assessing preseason strength and flexibility as a risk factor for adductor strains in professional ice hockey players. Another study performed with the same professional hockey team used preseason hip adductor/abductor strength ratios to screen for those players who would benefit from a strengthening intervention aimed at reducing the incidence of adductor strains. The final study, which was performed in elite U17 soccer players, assessed the effectiveness of monthly in-season strength monitoring as a guide to trigger in-season interventions to decrease injury incidence. Clinical Bottom Line: Measuring the hip adductor/abductor strength ratio in hockey and soccer players can be a beneficial preseason and in-season tool to predict future groin strain risk and screen for athletes who might benefit from a strengthening intervention. Strength of Recommendation: Level 3 evidence exists to support monitoring the hip adductor/abductor strength ratio to assess and reduce the risk of adductor strains in ice hockey and soccer players.

Groin Problems in Male Soccer Players Are More Common Than Previously Reported

2017 ◽  
Vol 45 (6) ◽  
pp. 1304-1308 ◽  
Author(s):  
Joar Harøy ◽  
Ben Clarsen ◽  
Kristian Thorborg ◽  
Per Hölmich ◽  
Roald Bahr ◽  
...  
Keyword(s):  
Injury Surveillance ◽  
Soccer Players ◽  
Time Loss ◽  
Match Play ◽  
Surveillance Studies ◽  
Trauma Research ◽  
Increased Risk ◽  
High Prevalence ◽  
Soccer Training ◽  
Different Levels

Background: The majority of surveillance studies in soccer have used a time-loss injury definition, and many groin problems result from overuse, leading to gradually increasing pain and/or reduced performance without necessarily causing an absence from soccer training or match play. Thus, the magnitude of groin problems in soccer has probably been underestimated in previous studies based on traditional injury surveillance methods. Purpose: To investigate the prevalence of groin problems among soccer players of both sexes and among male soccer players at different levels of play through a new surveillance method developed to capture acute and overuse problems. Study Design: Descriptive epidemiology study. Methods: We registered groin problems during a 6-week period of match congestion using the Oslo Sports Trauma Research Center Overuse Injury Questionnaire. A total of 240 players from 15 teams across different levels of play and from both sexes were included, and they responded to the weekly questionnaire. We calculated the average weekly prevalence of all groin problems and substantial groin problems. Results: Of the 240 players, 112 male players (59%) and 20 female players (45%) reported at least 1 episode of groin problems. The average weekly prevalence of any groin problem and substantial groin problem for all male players was 29% (range, 23%-32% across different levels) and 10% (7%-13%), respectively. Elite male players had an increased risk of experiencing groin problems (odds ratio: 3.1, 95% CI: 1.5-6.4, P = .03) compared with elite female players. There was no difference in the risk of experiencing groin problems among elite, subelite, and amateur male players. For substantial problems, there was no difference between elite male and elite female players or among levels of play for senior male soccer players. Conclusion: We found a high prevalence of groin problems among male soccer players during a period with match congestion. Time-loss definition as used in previous injury surveillance studies captured only one-third of the male groin problems registered with the new method. Elite male players had 3 times’ higher risk of reporting groin problems as compared with elite female players, while playing level did not influence the risk of reporting a groin problem among males.

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