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E R Laskowski

Publications and source records attributed to E R Laskowski.

At least 19 recordsLinked to original sources

A valid and reliable method for measuring the kicking accuracy of soccer players.

Kicking accuracy is an important component of soccer performance. We constructed a plywood target measuring 243.5cm wide x 122cm high. Carbon paper applied to the surface of the target allowed measurement by 2 raters from a bull's-eye to 10 ball marks left by kicks. Intraclass correlation coefficients with 95% confidence intervals were used to determine the intra- and interrater reliability of the measurement to each ball mark. Mean and median distances from bulls-eye to ball mark were 89.9cm and 97.9cm, respectively (range, 25.7 to 150.75cm). The intraclass correlation coefficients for intra- and interrater reliability were 0.99. The root mean square error of measurement indicated that accuracy of measurement was within 0.15cm. These results suggest that our method of assessing kicking accuracy is a valid and reliable tool for analysing performance. Because this tool closely replicates kicking into a soccer goal, we feel that it also has validity. To our knowledge, no other tool or measure (e.g.. number of shots on goal or number of goals per game) has comparable validity and reliability. This method can be used as a training tool and for future investigations of kicking accuracy.

Confidence Intervals↗

The effects of a lumbar support on repositioning error in subjects with low back pain.

OBJECTIVE: To determine whether a lumbar support improves trunk repositioning error (RE), an aspect of proprioception. DESIGN: RE was measured with and without a lumbar support. SETTING: Outpatient clinic. PARTICIPANTS: Twenty subjects with chronic low back pain (LBP) and 20 control subjects. INTERVENTIONS: Subjects wore the lumbar support for 2 hours and then testing was repeated. MAIN OUTCOME MEASURES: Standing with legs and pelvis immobilized, subjects moved to a predetermined target position and then attempted to replicate the position. The 3-dimensional position of the trunk was measured with a 3Space Tracker. RE was calculated as the absolute difference between the actual target position and the subject-perceived target position. Testing was performed with and without a lumbar support both before and after wearing the support for 2 hours. RESULTS: In subjects with LBP, RE was significantly lower with a support in flexion, extension, and right lateral bending. In control subjects, RE was significantly lower when wearing the support in left bending only, and RE was significantly higher in control subjects after wearing the support for 2 hours. CONCLUSION: A lumbar support improves trunk RE. In subjects with LBP, this result was significant in the sagittal plane and in right lateral bending, whereas in control subjects, it was significant only in left lateral bending.

Adult↗

Development of a musculoskeletal examination skills course for a physical medicine and rehabilitation residency program.

This article describes the development of a musculoskeletal physical examination skills course for a physical medicine and rehabilitation residency training program. Course objectives, structure, and modification over time based on experience and resident feedback are discussed. The current course design is adaptable to meet the needs and resources of most residency programs.

Clinical Competence↗

Corticosteroid injection in early treatment of lateral epicondylitis.

OBJECTIVE: To analyze whether a corticosteroid injection in combination with rehabilitation early in the course of lateral epicondylitis (LE) alters the outcome up to 6 months after injection compared with a control injection and rehabilitation. DESIGN: Randomized, controlled, double-blind study. SETTING: Sports medicine center in a tertiary care center. PARTICIPANTS: Subjects with a diagnosis of LE whose symptoms had been present less than 4 weeks were included. Subjects were recruited by word of mouth and through advertising. The 39 subjects who were recruited were 18 to 65 years old. INTERVENTIONS: 19 subjects were randomized to receive rehabilitation and a sham injection, and 20 were randomized to receive rehabilitation and a corticosteroid injection. At 4 and 8 weeks, they were reevaluated and their treatment programs were modified, if indicated. MAIN OUTCOME MEASURES: Outcome measurements were performed at baseline, 4 weeks, 8 weeks, and 6 months, and included a functional pain questionnaire and a visual analogue pain scale. Painless grip strength on the affected side and maximal grip strength bilaterally were measured at baseline, 4 weeks, and 8 weeks. RESULTS: There were no significant differences in outcome between the two groups with the exception of an improvement in the visual analogue pain scale in the corticosteroid group from 8 weeks to 6 months. Outcome measurements in both groups improved significantly over time; more than 80% of subjects reported improvements from baseline to 6 months for all scales. CONCLUSION: A corticosteroid injection does not provide a clinically significant improvement in the outcome of LE, and rehabilitation should be the first line of treatment in patients with a short duration of symptoms.

Adolescent↗

Neurophysiologic influences on hamstring flexibility: a pilot study.

OBJECTIVE: To examine the potential contribution of neurologic influences on hamstring length during passive range of motion. DESIGN: Prospective study. SETTINGS: Academic sports medicine center. PATIENTS: 15 subjects undergoing arthroscopic surgery for unilateral knee injuries without previous injury to the contralateral knee. INTERVENTIONS: Subjects received: 1) spinal anesthesia with bupivacaine, 2) epidural anesthesia with lidocaine, 3) general anesthesia, or 4) femoral nerve block of injured leg only. MAIN OUTCOME MEASURES: Noninjured leg popliteal angle preoperatively, intraoperatively under anesthesia, and postoperatively after recovery from anesthesia. RESULTS: The overall mean popliteal angle was 132.5 +/- 3.1 degrees preoperatively, 134.31 +/- 11.6 degrees intraoperatively, and 130.7 +/- 10.2 degrees postoperatively. Overall, the intraoperative angle was significantly greater than the postoperative angle (p = 0.02). The mean change in popliteal angle was 8.1 +/- 2.2 degrees (Group 1), -0.4 +/- 1.9 degrees (Group 2), 0.9 +/- 1.4 degrees (Group 3), and -2.4 +/- 3.8 degrees (Group 4). There was no significant change in pre- to postoperative popliteal angle in relation to postoperative pain. Females had a greater mean popliteal angle (139.84 degrees ) compared with males (128.84 degrees ) (p = 0.04). CLINICAL RELEVANCE: Understanding the neuromuscular influences on muscle flexibility will assist in the development of new rehabilitative and injury preventative techniques. CONCLUSION: The present pilot study implicates neural contributions to muscle flexibility. Further studies are needed to delineate the relative contributions of neural and muscular components and to facilitate new techniques in the rehabilitation and prevention of injury.

Adolescent↗

Barriers to bicycle helmet use.

OBJECTIVE: To determine why people do or do not wear helmets while bicycling. METHODS: A survey was conducted from August through October 1999. Two survey areas were chosen for this study: local public schools and paved bicycle trails. For the school arm of the study, 3 public elementary, middle, and high schools were selected from 3 different regions of Rochester, Minnesota, for participation in the study. For the bicycle arm of the study, 3 paved trails located in southeastern Minnesota were selected. A total of 2970 surveys were distributed to the public school system, and 463 surveys were collected from bicyclists on the paved bicycle trails. The survey population was split into 3 age categories for analysis: child (7-10), adolescent (11-19), and adult (older than 19). RESULTS: Of the 2970 surveys distributed to Rochester public schools, 2039 (69%) were returned for analysis. Seventy-eight of the surveys that were completed in the public school system were discarded for the following reasons: age <10 years (35), insufficient completion (24), and selection of every reason for not wearing a bicycle helmet (19). A total of 463 surveys were completed on the 3 paved bicycle trails. One survey from the paved bicycle trail arm of the study was discarded because of insufficient completion. The total number of surveys used for statistical analysis was 2424. The distribution of male (52.7%) and female (47.3%) participants was similar. No significant difference in bicycle helmet use was found between genders. The age groups with the highest rate of bicycle helmet use were 50 to 59 years (62%) and older than 59 years (70%). The age groups with the lowest rate of bicycle helmet use were 11 to 19 years (31%) and 30 to 39 years (30%). The most common reasons given for not wearing a bicycle helmet were "uncomfortable," "annoying," "it's hot," "don't need it," and "don't own one." Bicycle helmet use was significantly influenced by peer helmet use in all 3 age groups. Children also were more likely to wear a bicycle helmet when their parents wore bicycle helmets. A majority of respondents in all 3 age groups indicated that bicycle helmets provided either "moderate" or "great" protection from head injury, although significantly more adults (65.9%) than adolescents (43.9%) believed that the protection afforded by bicycle helmets was "great." Despite this belief, a majority of adolescents and adults indicated that there was only a "slight risk" of head injury when bicycling without a helmet. Participants in all 3 categories were more likely to wear a bicycle helmet when they indicated either that there was a "great risk" of head injury when bicycling without a helmet or that helmets provided "great protection" from head injury. Adolescents and adults who believed that bicycling without a helmet put one at "great risk" for head injury also were more likely to indicate that helmets provided "great protection" from head injury. CONCLUSIONS: The prevalence of bicycle helmet use remains low despite research indicating the high level of head injury risk when bicycling without a helmet and the significant protection afforded by bicycle helmets. With the information provided by this survey, a well-designed intervention to increase the use of bicycle helmets can be implemented. Suggestions for a campaign to promote an increase in bicycle helmet use include focusing efforts on males and females between 11 and 19 years and 30 and 39 years of age; educating the public on new bicycle helmet designs that address comfort, ventilation, and fashion; educating adolescents on the significant protection from head injury afforded by bicycle helmets; and educating the public on the risk and severity of head injury associated with bicycling without a helmet. The influence of parents and peers on bicycle helmet use may be targeted through education and statements such as, "If you wear a bicycle helmet, you are not only protecting yourself, you are also helping to protect your friends and/or children." bicycle, helmet, injury, accident, prevention.

Adolescent↗

A preliminary analysis of psychophysiological variables and nursing performance in situations of increasing criticality.

OBJECTIVE: To examine the relationship between psychological, physiological, and performance variables in intensive care unit (ICU) nurses in situations of increasing criticality. SUBJECTS AND METHODS: Psychophysiological variables and endotracheal suctioning performance were examined in a classroom, a skills laboratory, and an ICU. Situation-specific anxiety (state anxiety) and the predisposition to view situations as threatening (trait anxiety), cognitive appraisal, and heart rate were measured and compared with self-appraisal and a nurse instructor's ratings of suctioning performance. Baseline data were obtained during class on 45 novice ICU nurses. RESULTS: Twenty-six nurses provided complete data, which included being videotaped and monitored in the classroom, in the skills laboratory performing endotracheal suctioning, and in the ICU during suctioning. High state anxiety significantly predicted poor ICU suctioning performance (P<.04). Nurses high in state and trait anxiety, worry, and heart rate performed poorly compared with less anxious nurses. Nurses in this study who performed best had a mean heart rate of 94 beats/min. CONCLUSION: Those nurses who are high state anxious, high trait anxious, and worried and who had a faster heart rate performed less well than their more relaxed peers. Nurses with high state anxiety may be at risk for attrition, burnout, medical errors, and poor performance in other ICU nursing tasks.

Anxiety↗

Differences in repositioning error among patients with low back pain compared with control subjects.

STUDY DESIGN: Trunk repositioning error was measured in 20 patients with chronic low back pain and 20 control subjects. OBJECTIVES: To measure trunk repositioning error as a method of measuring proprioception of the low back and to compare trunk repositioning error in patients with low back pain and in control subjects. SUMMARY OF BACKGROUND DATA: Although many current low back pain rehabilitation programs incorporate proprioceptive training, very little research has been performed on proprioception of the low back. METHODS: While standing with the legs and pelvis immobilized, the subject bent the trunk to a predetermined target position and then attempted to replicate the position. Repositioning error was calculated as the absolute difference between the actual target position and the subject-perceived target position. The multiple target positions in the frontal and sagittal planes were tested. Trunk position was measured with a 3Space Tracker, which analyzes the three-dimensional position of the body. RESULTS: Repositioning error in patients with low back pain was significantly higher than that of control subjects in flexion, and significantly lower than that of control subjects in extension. CONCLUSIONS: The increase in repositioning error of patients with low back pain during flexion implies that some aspects of proprioception are lost in patients with low back pain. The decrease in repositioning error in patients with low back pain in extension is not as easily explained, but could possibly be caused by increased activation of mechanoreceptors in facet joints.

Adult↗

Repositioning error in low back pain. Comparing trunk repositioning error in subjects with chronic low back pain and control subjects.

STUDY DESIGN: Repositioning error of the trunk was tested in 20 subjects with chronic low back pain and in 20 control subjects. The 3Space Tracker (Polhemus, Colchester, VT), a device that measures three-dimensional position in space, was used to determine the subject's trunk position. OBJECTIVES: To determine whether repositioning error is different in subjects with chronic low back pain than in control subjects. SUMMARY OF BACKGROUND DATA: Proprioception allows the body to maintain proper orientation during static and dynamic activities. In peripheral joint injuries, researchers have demonstrated a loss of some aspects of proprioception and improvement in outcome with retraining. Although the components of proprioception in subjects with low back pain have not been well studied, it is thought that these persons lose some elements of proprioception that can be measured in a quantifiable way. If so, then rehabilitation to improve these deficits is important. In this pilot study, one aspect of proprioception, repositioning error, was examined. METHODS: The subjects attempted to replicate target positions of the trunk in flexion, extension, lateral bending, and lateral rotation. Repositioning error was calculated as the absolute difference between the actual and the subject-replicated target positions. RESULTS: No significant difference was found in repositioning error between the control subjects and the persons with chronic low back pain. CONCLUSIONS: Because proprioception is complex and entails the use of many afferent receptors, it is difficult to measure any one afferent deficiency discretely. The authors believe that this study, in which one aspect of proprioception was measured in an indirect manner, provides important background information on low back position sense. Further studies analyzing aspects of proprioception in subjects with low back pain are recommended.

Adult↗

A multidisciplinary study of the 'yips' phenomenon in golf: An exploratory analysis.

BACKGROUND: The 'yips' is a psychoneuromuscular impediment affecting execution of the putting stroke in golf. Yips symptoms of jerks, tremors and freezing often occur during tournament golf and may cause performance problems. Yips-affected golfers add approximately 4.7 strokes to their scores for 18 holes of golf, and have more forearm electromyogram activity and higher competitive anxiety than nonaffected golfers in both high and low anxiety putting conditions. The aetiology of the yips is not clear. OBJECTIVE: To determine whether the yips is a neurological problem exacerbated by anxiety, or whether the behaviour is initiated by anxiety and results in a permanent neuromuscular impediment. METHODS: In phase I, golf professionals assisted investigators in developing a yips questionnaire that was sent to tournament players (<12 handicap) to establish the prevalence and characteristics of the yips. Phase II measured putting behaviour in scenarios that contribute to the yips response. Four self-reported yips and 3 nonaffected golfers putted 3 scenarios using an uncorrected grip and a standard length putter. Heart rate was superimposed on the videotape and the putter grip was instrumented with strain gauges to measure grip force. Electromyograms and relative putting performance were also measured. RESULTS: The questionnaire was sent to 2,630 tournament players, of whom 1,031 (39%) responded (986 men and 45 women). Of these, 541 (52%) perceived they experienced the yips compared with 490 (48%) who did not. Yips-affected golfers reported that the most troublesome putts were 3, 4 and 2 feet (0.9, 1.2 and 0.6 metres) from the hole. Fast, downhill, left-to-right breaking putts and tournament play also elicited the yips response. Golfers affected by the yips had a faster mean heart rate, increased electromyogram activity patterns and exerted more grip force than nonrffected golfers and had a poorer putting performance. CONCLUSIONS: For <10 handicap male golfers and <12 handicap female golfers, the prevalence of the yips is between 32.5% and 47.7%, a high proportion of serious golfers. This high prevalence suggests that medical practitioners need to understand the aetiology of the yips phenomenon so that interventions can be identified and tested for effectiveness in alleviating symptoms. Although previous investigators concluded that the yips is a neuromuscular impediment aggravated but not caused by anxiety, we believe the yips represents a continuum on which 'choking' (anxiety-related) and dystonia symptoms anchor the extremes. The aetiology may well be an interaction of psychoneuromuscular influences. Future research to test the effect of medications such as beta-blockers should assist in better identifying the contributions these factors make to the yips phenomenon.

Adaptation, Physiological↗

Proprioception.

Although definitions of proprioception may vary, its importance in preventing and rehabilitating athletic injuries remains constant. Proprioception plays a significant role in the afferent-efferent neuromuscular control arc. This control arc is disrupted with joint and soft tissue injury. Restoring proprioception after injury allows the body to maintain stability and orientation during static and dynamic activities. By focusing on aspects of neuromuscular function, such as dynamic joint stability, practitioners can design and study interventions to maximize sport and daily life neuromuscular function. Further research is necessary to elucidate how proprioceptive deficits can be remedied or compensated to improve function and prevent reinjury.

Athletic Injuries↗

Snow skiing.

There are many inherent difficulties in the collection of epidemiologic ski data, but important trends have been identified. Further investigation into controllable risk factors is currently in progress in an attempt to reduce injury incidence, along with prophylactic strength training and conditioning programs. A comprehensive ski-specific training program entailing training of the energy systems, isolated and kinetic chain strength training, skill-specific training, and psychological training is essential to ensure the optimal performance and safety of the skier. Rehabilitation issues also can be addressed in the context of the above elements.

Athletic Injuries↗

The preparticipation physical examination: Mayo Clinic experience with 2,739 examinations.

OBJECTIVE: To report the results of preparticipation physical examination (PPE) performed on 2,739 high school athletes and present a model for providing PPEs in similar practice settings. DESIGN: We analyzed 2,739 PPEs performed on high school athletes by means of a station examination approach in our Sports Medicine Center during a 3-year period. MATERIAL AND METHODS: Personnel from the Departments of Physical Medicine and Rehabilitation, Orthopedics, Family Medicine, and Internal Medicine participated in performance of a comprehensive station-based physical examination of high school athletes. The final reviewing physician assigned one of three dispositions to each athlete: cleared for participation in sports, not cleared, or cleared with follow-up recommended. RESULTS: On the basis of PPE findings, 53 athletes (1.9%) were disqualified from participation in sports. Abnormalities that did not preclude participation but necessitated follow-up were identified in another 327 athletes (11.9%). Musculoskeletal problems were the leading cause of restriction from sports activities (43.4%) and the second leading cause for recommended follow-up (27.8%). Clinically significant cardiac abnormalities were noted in only 10 athletes (0.37% of the overall group of students). Our methods and results are discussed in relationship to previous PPE studies. CONCLUSION: On the basis of this study, we conclude that (1) a Sports Medicine Clinic can efficiently administer PPEs to a large number of athletes by using an adaptable station approach, (2) the musculoskeletal component of a PPE is an important part of the process that often reveals abnormalities and should be performed by qualified personnel, and (3) each practice must refine its delivery of PPEs on the basis of its particular environment.

Adolescent↗

Psychologic, situational, and physiologic variables and on-ice performance of youth hockey goalkeepers.

OBJECTIVE: To determine the relationship between psychologic, situational, and physiologic variables and on-ice performance of youth hockey goalkeepers. DESIGN: This study was structured to identify relationships and predictors of goalie performance. MATERIAL AND METHODS: Because athletes playing solo positions in team sports have not been analyzed in depth in terms of precompetition anxiety and because goalkeeper performance is critical to game outcome, we undertook a study of 43 goalies at a hockey camp. These goalies completed psychometric inventories to assess trait and state anxiety, confidence, life stress, and social support. Holter monitors measured heart rate while the goalies rotated through on-ice stations. Goalies were videotaped at the puck-shooting machine station, and performance (percent saves) was calculated. RESULTS: Trait (somatic) anxiety and positive mood state (ability to share) had different but significant relationships with on-ice performance. Heart rates ranged from 88 to 208 beats/min at the on-ice stations. Mean heart rate for older goalies (14 to 18 years of age) was 164 beats/min at the puck-shooting machine and 176 beats/min at other stations such as the slap-shot station. CONCLUSION: Older goalies performed well at a high level of arousal. Better performing goalies were more experienced, had faster heart rates "in the net," and had lower scores on all measures of anxiety.

Adolescent↗

Kinematics of the elbow during wheelchair propulsion: a comparison of two wheelchairs and two stroking techniques.

OBJECTIVE: The kinematics of the elbow joint were studied for two types of wheelchairs and during two types of propulsive strokes. PARTICIPANTS: Ten serially selected healthy volunteers propelled a standard and a lightweight wheelchair on a roller system with both circular and pumping strokes. DESIGN: Kinematic data for the wheelchair and the upper extremity were collected by an optical tracking system. These kinematic descriptors were subsequently time-normalized with a spline algorithm to provide a graphic description of the wheelchair strokes. MAIN OUTCOME MEASURES: Thirteen discrete variables were compared for the two chairs and the two propulsive strokes. RESULTS: Total elbow motion ranged from 60.9 degrees of flexion to 5.2 degrees of extension. Maximal elbow flexion velocity ranged from 515.4 degrees to 572.8 degrees per second. Kinematic differences between the two wheelchairs were minimal, with a trend for 8.3 degrees to 5.2 degrees more elbow flexion in the lightweight wheelchair (p < .05), depending on the stroke used. With the use of any one chair, the style of the stroke had no significant effect on elbow kinematics, but the use of a pumping stroke did decrease propulsion arc by 12 degrees to 14 degrees (p < .05). CONCLUSION: No major differences regarding elbow kinematics were seen between the two types of wheelchairs. The pumping-stroke technique resulted in a shortened handrim contact arc.

Adult↗

Effect of corrective rearfoot orthotic devices on ground reaction forces during ambulation.

OBJECTIVE: To determine the quantitative effects of a corrective rearfoot orthotic device on the vertical, anteroposterior, and mediolateral ground reaction forces (GRFs) during ambulation. DESIGN: We conducted a prospective, randomized, single-blinded study of 25 subjects during ambulation with and without a rearfoot orthotic device. MATERIAL AND METHODS: Thirteen men and 12 women were enrolled in the study; the inclusion criteria included asymptomatic pes planus (5 to 10 degrees of calcaneal eversion). Each subject walked across a standard force plate in 10 trials without an orthotic device. The force plate was used to quantify the effect of a semirigid functional rearfoot orthotic device on GRFs and the center of pressure versus a standard shoe with no device. The observer was blinded, trials were completed in random order, and the paired t test was used for statistical analysis. RESULTS: No evidence suggested the presence of a significant difference in mediolateral GRFs and in the center of pressure exerted at 10%, 20%, 50%, and 80% of stance phase with and without the orthotic device. Significant reductions were noted in vertical GRFs per newton of body weight exerted at 10% (P = 0.0009) and 20% (P = 0.0383) of stance phase and in anteroposterior GRFs exerted at 10% (P = 0.0009) and 50% (P = 0.0033) of stance phase when ambulation was compared with and without the orthotic device. CONCLUSION: These results indicate that a rearfoot orthotic device reduces vertical and anteroposterior GRFs in the early stages of the stance phase during the gait cycle. We found no evidence to suggest a significant difference at any of the percent stance phases when comparisons were made of mediolateral GRFs exerted with and without the orthotic device. These data are contrary to current hypotheses about use of orthotic devices, and further studies would be helpful to reproduce these findings and to determine whether these changes are related to clinical improvement in symptomatic pes planus.

Adolescent↗

Medical coverage for multievent sports competition: a comprehensive analysis of injuries in the 1994 Star of the North Summer Games.

OBJECTIVE: To determine the incidence and type of requests for medical assistance and the treatment required in 21 sports at the 1994 Star of the North Summer Games and to develop a plan, based on these findings, for efficient allocation of medical supplies and staff. DESIGN: We reviewed our experience with a large multisport amateur athletic event and analyzed the pattern of injuries for participants in the various sports. MATERIAL AND METHODS: Injury evaluation forms and medical supply kits were given to the health-care volunteers, who received preliminary instructions on classifications and definitions of injuries and on appropriate completion of the forms. When a medical contact occurred, an evaluation form was completed. The data from these forms were subsequently compiled and analyzed. RESULTS: Of 6,243 athletes who participated in the 1994 Star of the North Summer Games, 55 (0.88%) received medical attention (2 officials also required medical assistance). The sports with the greatest number of medical contacts were soccer and track and field--31 and 16 contacts for medical assistance, respectively. The lower extremities were the anatomic site most frequently involved in injury (62% of the medical contacts). The most common types of injury were contusions, strains, and sprains. CONCLUSION: Because few injuries were sustained and most were of minor severity, basic medical supplies (such as ice bags and compression wraps) were sufficient. For locations with a scarcity of medical personnel, a triage system can be established in which athletic trainers or registered nurses manage the initial assessments and refer cases, as needed, to physicians for specialized care. An effective communication system can also considerably reduce volunteer hours.

Adolescent↗

Thigh injuries in athletes.

The thigh, which consists of the heavily muscled region around the femur, is vulnerable to many types of athletic injury. This review addresses the assessment, prevention, and rehabilitation of both the common thigh injuries associated with participation in sports, such as contusions and myositis ossificans traumatica, and a few relatively uncommon but diagnostically important entities that sports physicians must recognize when an athlete has pain or dysfunction attributable to the thigh. Dividing the thigh into anatomic compartments aids in both differential diagnosis and understanding of the pathomechanics that lead to injury. Rehabilitation is especially emphasized because improper selection of modalities or misuse of exercise can seriously impede or worsen recovery. Conversely, the use of appropriate rehabilitation principles and new concepts in exercise prescription can decrease morbidity and lead to rapid resumption of sports.

Athletic Injuries↗