Abstract:
CONTEXT:Physiological fitness testing, such as the Yo-Yo Intermittent Recovery Test (YYIR) is a key requirement of the Elite Player Performance Plan, introduced by the English Premier League. Eccentric hamstring strength has been identified as a risk factor for hamstring injuries in soccer players, with fatigue highlighted to further exasperate this issue. OBJECTIVE:The aim of the current study was to examine the effect of the YYIR level 1 (YYIR1) on eccentric knee flexor strength assessed using the NordBord in youth soccer players. DESIGN:Experimental design. SETTING:Soccer club academy. PARTICIPANTS:A total of 67 male academy soccer players (age = 16.58 [0.57] y; height = 175.45 [5.85] cm; mass = 66.30 [8.21] kg) volunteered to participate in the current study during the English competitive soccer season. MAIN OUTCOME MEASURES:Participants conducted eccentric hamstring strength assessments using the NordBord prior to and immediately postcompletion of the YYIR1, with outcome measures of peak force and peak force relative to body mass recorded. RESULTS:Paired t tests highlighted increased absolute eccentric knee flexor strength values (P < .001) immediately post-YYIR1 for both the dominant and nondominant limbs, with the same trend (P < .001) observed for eccentric strength relative to body mass. CONCLUSIONS:The results of this study indicate that the YYIR1 does not induce eccentric knee flexor fatigue and as such is not a valid assessment method to assess the effects of fatigue on hamstring function. However, results do suggest that the NordBord may be considered a viable and more accessible alternative to detect pre-post fitness test/fatigue protocol differences in eccentric knee flexor peak strength while working in the field.
journal_name
J Sport Rehabiljournal_title
Journal of sport rehabilitationauthors
Brogden CM,Gough L,Kelly Adoi
10.1123/jsr.2019-0532subject
Has Abstractpub_date
2020-11-20 00:00:00pages
1-5eissn
1056-6716issn
1543-3072pii
jsr.2019-0532pub_type
杂志文章abstract:CONTEXT:Taking into account the complex structure of the diaphragm and its important role in the postural chain, the authors were prompted to check the effects of a diaphragm technique on hamstring flexibility. OBJECTIVE:To evaluate the effects of the doming-of-the-diaphragm (DD) technique on hamstrings flexibility an...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1123/jsr.2014-0190
更新日期:2015-11-01 00:00:00
abstract:CONTEXT:Decreased hamstring flexibility can lead to a plethora of musculoskeletal injuries, including low back pain, hamstring strains, and patellofemoral pain. Lack of flexibility may be the result of myofascial adhesions. The fascia connected to the hamstrings is part of the superficial back line that runs from the c...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2018-0306
更新日期:2019-10-18 00:00:00
abstract:CONTEXT:Anterior cruciate ligament (ACL) reconstruction is the standard of care for individuals with ACL rupture. Balance deficits have been observed in patients with ACL reconstruction (ACLR) using advanced posturography, which is the current gold standard. It is unclear if postural-control deficits exist when assesse...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.22.3.224
更新日期:2013-08-01 00:00:00
abstract:CONTEXT:Reduced strength and activation of hip muscles might correlate with increased weight-bearing knee valgus. OBJECTIVE:To describe relationships among frontal-plane hip and knee angles, hip-muscle strength, and electromyographic (EMG) recruitment in women during a step-down. DESIGN:Exploratory study. SETTING:La...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.18.1.104
更新日期:2009-02-01 00:00:00
abstract:CONTEXT:Eccentric exercises are increasingly being used to treat lower-limb musculoskeletal conditions such as Achilles tendinopathy. Despite widespread clinical application and documented efficacy, mechanisms underpinning clinical benefit remain unclear. Positive adaptations in motor performance are a potential mechan...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2015-0129
更新日期:2017-04-01 00:00:00
abstract:CONTEXT:The push-up-plus (PP) exercise has been recommended for strengthening of the serratus anterior (SA). Previous studies have investigated the effect of different stability properties of the base of support to adjust the difficulty level of SA muscle-strengthening exercises in the PP position. However, the optimal...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2015-0090
更新日期:2017-01-01 00:00:00
abstract:OBJECTIVE:To determine if there is any benefit to static stretching after performing a dynamic warm-up in the prevention of injury in high school soccer athletes. DESIGN:Prospective cluster randomized nonblinded study. SETTING:12 high schools with varsity and junior varsity boys' soccer teams (24 soccer teams) across...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1123/jsr.2013-0114
更新日期:2015-08-01 00:00:00
abstract:CONTEXT:In clinical and sports settings, static stretching (SS) is usually performed to increase range of motion (ROM) and decrease passive muscle stiffness. Recently, the shear elastic modulus was measured by ultrasonic shear wave elastography as an index of muscle stiffness. Previous studies reported that the shear e...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2018-0376
更新日期:2019-10-18 00:00:00
abstract:CONTEXT:Baseball players, specifically pitchers, with symptomatic neurovascular occlusion often initially complain of arm fatigue and loss of ball control and velocity. As the compression continues complaints may manifest in dull pain, paresthesia, and decreased grip strength. OBJECTIVE:To determine the correlation be...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2015-0179
更新日期:2017-07-01 00:00:00
abstract::Clinical Scenario: Currently, rest following concussion serves as the keystone of concussion treatment, but substantial evidence to support it is lacking. Recent literature suggests that early physical activity may be beneficial in reducing concussion symptoms which may influence clinical recovery time. Clinical Quest...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2017-0217
更新日期:2019-01-01 00:00:00
abstract:CONTEXT:Patellar tendinopathy (PT) is prevalent in physically active populations, and it affects their quality of living, performance of activity, and may contribute to the early cessation of their athletic careers. A number of previous studies have identified contributing factors for PT; however, their contributions t...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2017-0196
更新日期:2019-02-01 00:00:00
abstract:CONTEXT:Though previous research has focused on examining the effects of concussion history using a dual-task paradigm, the influence of factors like symptoms (unrelated to concussion), gender, and type of sport on gait in college athletes is unknown. OBJECTIVE:To examine the effect of concussion history, symptoms, ge...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2019-0331
更新日期:2021-01-08 00:00:00
abstract::Clinical Scenario: Health care clinicians are encouraged to practice according to the best available evidence for the purpose of improving patient outcomes. Clinical practice guidelines are one form of evidence that has been developed to enhance the care that patients receive for particular conditions. Low back pain i...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章,评审
doi:10.1123/jsr.2015-0185
更新日期:2018-03-01 00:00:00
abstract:CONTEXT:Deficiencies in scapular upward rotation and periscapular strength have been associated with various shoulder pathologies and decreased athletic performance. Therefore, proper periscapular strength and concomitant scapular upward rotation are important factors among overhead athletes, such as baseball players. ...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.17.2.95
更新日期:2008-05-01 00:00:00
abstract:CONTEXT:Joint trauma is a risk factor for osteoarthritis (OA), which is becoming an increasingly important orthopedic concern for athletes and nonathletes alike. For advances in OA prevention, diagnosis, and treatment to occur, a greater understanding of the biochemical environment of the affected joint is needed. OBJ...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.19.4.411
更新日期:2010-11-01 00:00:00
abstract:CONTEXT:Shoulder rehabilitation can be a difficult task due to the dynamic nature of the joint complex. Various weight training implements, including kettlebells (KB), have been utilized for therapeutic exercise in the rehabilitation setting to improve shoulder girdle strength and motor control. The KBs are unique in t...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2019-0541
更新日期:2020-12-17 00:00:00
abstract:CONTEXT:It is well established that autologous chondrocyte implantation (ACI) can require extended recovery postoperatively; however, little information exists to provide clinicians and patients with a timeline for anticipated function during the first year after ACI. OBJECTIVE:To document the recovery of functional p...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2013-0094
更新日期:2014-08-01 00:00:00
abstract:CONTEXT:An accurate assessment of lumbar spine active range of motion (AROM) is clinically important. Dual inclinometry is recommended as the optimal technique for measuring lumbar flexion AROM; however, the procedures differ in the literature. OBJECTIVE:To compare 2 different handheld digital dual inclinometry (HDDI)...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2019-0368
更新日期:2020-06-10 00:00:00
abstract:CONTEXT:Lower back pain is prevalent in horse riders as a result of the absorption of repetitive and multiplanar propulsive forces from the horse. Global positioning system technology provides potential for in vivo measurement of planar loading during riding. OBJECTIVE:To quantify the uniaxial loading at the lumbar an...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2019-0266
更新日期:2020-03-01 00:00:00
abstract:CONTEXT:Patients with somatosensory deficits have been found to rely more on visual feedback for postural control. However, current balance tests may be limited in identifying increased visual dependence (sensory reweighting to the visual system), as options are typically limited to eyes open or closed conditions with ...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2017-0035
更新日期:2017-09-01 00:00:00
abstract:CONTEXT:As the number of injuries in young soccer players increases, an epidemiological study is the first step in improving preventive strategies. OBJECTIVES:To analyze the injury profile of a Spanish professional soccer club's academy during 4 consecutive seasons and to examine the injury incidence across different ...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2019-0113
更新日期:2019-10-18 00:00:00
abstract:CLINICAL SCENARIO:Interventions aimed at safely overloading the quadriceps muscle after anterior cruciate ligament (ACL) reconstruction are essential to reducing quadriceps muscle weakness that often persists long after the rehabilitation period. Despite the best efforts of clinicians and researchers to improve ACL reh...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章,评审
doi:10.1123/jsr.22.2.150
更新日期:2013-05-01 00:00:00
abstract:CONTEXT:Within each hamstring muscle, there are segments with separate nerve innervation. However, a better understanding of activation levels within these regions during resistance exercise could lead to region-specific training for improved performance and injury prevention. OBJECTIVE:To compare muscle activation le...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2019-0118
更新日期:2019-09-24 00:00:00
abstract:CONTEXT:Soft tissue restrictions have been linked to poor flexibility and decreased range of motion (ROM). To decrease the soft tissue restrictions and ultimately increase ROM/flexibility, myofascial release techniques, such as foam rolling (FR) and instrument-assisted soft tissue mobilization (IASTM), have been used. ...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2018-0494
更新日期:2020-07-23 00:00:00
abstract::Context: Knee abduction angle (KAA), as measured by 3-dimensional marker-based motion capture systems during jump-landing tasks, has been correlated with an elevated risk of anterior cruciate ligament injury in females. Due to the high cost and inefficiency of KAA measurement with marker-based motion capture, surrogat...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2018-0017
更新日期:2019-05-01 00:00:00
abstract:CONTEXT:Unstable devices in various forms are used as therapeutic adjuncts for prevention or following an injury. A slip-over-the-shoe design with inflatable domes (STEPRIGHT® Stability Trainer) was developed to improve balance. It is unknown how this unstable device affects muscle activity during a closed-chain exerci...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2018-0296
更新日期:2019-10-18 00:00:00
abstract:CONTEXT:Existing theoretical frameworks and empirical research support the applicability and usefulness of integrating mental skills throughout sport injury rehabilitation. OBJECTIVE:To determine what, if any, mental skills athletes use during injury rehabilitation, and by who these skills were taught. Cross-cultural ...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2013-0148
更新日期:2015-05-01 00:00:00
abstract::Clinical Scenario: A variety of training approaches have been adopted in anterior cruciate ligament (ACL) prevention programs, including neuromuscular control training, core stability training, balance training, and plyometric exercise. This review was conducted to determine if current evidence supports one of these t...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2017-0055
更新日期:2019-01-01 00:00:00
abstract:CONTEXT:During sport activity, knee proprioception might worsen. This decrease in proprioceptive acuity negatively influences motor control and therefore may increase injury risk. Hiking is a common activity characterized by a higher-intensity-exercise phase during uphill walking and a lower-intensity-exercise phase du...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2014-0192
更新日期:2015-11-01 00:00:00
abstract:CONTEXT:Blood flow restriction research has focused on muscular strength and hypertrophy. Limited data have been reported about the blood flow restriction effect on the tendon. OBJECTIVE:To analyze and compare the time course of recovery in Achilles tendon thickness after a single bout of low-intensity resistance trai...
journal_title:Journal of sport rehabilitation
pub_type: 杂志文章
doi:10.1123/jsr.2019-0403
更新日期:2020-07-27 00:00:00