Context: To quantify quadriceps weakness after anterior cruciate ligament reconstruction (ACLR), researchers have often analyzed only peak torque. However, analyzing other characteristics of the waveform, such as rate torque development (RTD), time to (TTP), and central activation ratio (CAR), can lend insight into underlying neuromuscular factors that regulate development. Objective: determine if interlimb asymmetry was present in patients with ACLR at clearance return activity. Design:...

Abnormal gait is common after anterior cruciate ligament reconstruction (ACLR) which may influence osteoarthritis risk in this population. Yet few retraining options currently exist ACLR rehabilitation. Cueing cadence changes a simple, low-cost method that can alter walking mechanics healthy adults, but studies have tested its effectiveness an Here, we evaluated the acute effects of altering on knee patients 9 to 12 months post ACLR.

Parents of preschoolers' report using screen media frequently. More frequent use by parents may undermine child development displacing time for foundational parent-child interactions. The objective the present study is to examine extent which parent contributes global 1 year later.

Quadriceps neuromuscular function is negatively affected after anterior cruciate ligament reconstruction (ACLR). The specific effect that the ACLR has on quadriceps femoris rate of force production and its impact functional recovery unknown.

ABSTRACT Context Knee joint effusion and quadriceps strength activation deficits are common consequences of anterior cruciate ligament (ACL) injury reconstruction. The presence an may initiate or worsen the dysfunction present after ACL trauma. In simulated studies, evidence indicates inverse relationship between size dysfunction. While this was not found in patients injury, prior research limited by a subjective clinical assessment grade. Objective purpose study to determine if knee...

Abstract Winters, JD, Heebner, NR, Johnson, AK, Poploski, KM, Royer, SD, Nagai, T, Randall, CA, Abt, JP, and Lephart, SM. Altered physical performance following advanced special operations tactical training. J Strength Cond Res 35(7): 1809–1816, 2021—The purpose of this study was to determine how the unique challenges specific military training phases influence overall characteristics. Broad jump, 5-10-5, 300-yd shuttle, percent body fat (%BF), anaerobic power (AP) capacity (AC), maximal...

Individuals with anterior cruciate ligament reconstruction (ACLR) generally exhibit limb underloading behaviors during walking, but most research focuses on per-step comparisons. Cumulative loading metrics offer unique insight into joint as magnitude, duration, and total steps are considered, few studies have evaluated if cumulative loads altered post-ACLR. Here, we apparent in ACLR limbs when using load how change response to walking speed modifications.

A series of focus groups was conducted to obtain and compare attitudes held by undergraduate university students educators about the nature academic writing. Analysis comments found misalignment assumptions linguistic demands on students. Such misalignments were evident not only between but also within each population. follow-up study involved two recording impressions in journals their own awareness language use demands, trace any metalinguistic gains from participating groups. Data this...

Background: Anterior cruciate ligament reconstruction (ACLR) results in persistent altered knee biomechanics, but contributing factors such as pain or patient function, leading to the loading, are unknown. Hypothesis: Individuals with worse self-reported after ACLR would have poorer biomechanics during running, and poor loading mechanics be present limb compared contralateral control limbs. Study Design: Cohort pilot study. Level of Evidence: 3. Methods: A total 20 patients (age, 18.4 ± 2.7...

Mitigating inflammation early after anterior cruciate ligament reconstruction (ACLR) may help strength and biomechanical outcomes further in rehabilitation. PURPOSE: The purpose of this study was to determine if hyaluronate injections (HI) administered surgery improves running mechanics six months ACLR. METHODS: Nineteen individuals (Table 1) who suffered an ACL tear during sport participation were enrolled a randomized double-blind controlled trial test post-operative intraarticular HI...

Patients with anterior cruciate ligament (ACL) reconstruction often display abnormal gait mechanics, reflective of “stiff-knee” gait. However, dynamic knee stiffness has not been directly examined during walking in individuals ACL reconstruction. Here, we aimed to evaluate the involved compared uninvolved limb weight-acceptance and mid-stance phases walking. Twenty-six who underwent (Age: 20.2±5.1 yrs., Time post-op: 7.2±0.9 mo.) were recruited completed an overground assessment using a...

ABSTRACT Purpose This study aimed to comprehensively examine the extent which knee flexion angle at initial contact, peak angle, and vertical ground reaction force (vGRF) contribute extension moments during gait in individuals with anterior cruciate ligament (ACL) reconstruction. Methods Overground biomechanics were evaluated 26 participants ACL reconstruction three time points (about 2, 4, 6 months after surgery). Knee vGRF, moment calculated for each limb early stance phase of all points....

To quantify a loss in strength after anterior cruciate ligament reconstruction (ACLr), researchers have often only utilized discrete measures of quadriceps force production such as peak torque. Yet, analyzing other characteristics the waveform, rate torque development (RTD) and time to (TTP), can tell us about several factors that regulate alterations muscle firing alpha motor neuron recruitment, respectively. PURPOSE: determine if RTD, TTP, exists between limbs ACLr at when patients are...

During exercise and sport, physically active individuals often perform movements that require dynamic postural stabilization. Postural stability has been linked to ankle knee injuries examining factors associated with stabilization may provide insight as how poor influences joint loading. PURPOSE: To examine mechanisms during a Forward Jump Single-Leg Landing task (FJSL). METHODS: Dynamic index (DPSI), composite of the anterior-posterior, medial-lateral, vertical ground reaction forces,...

Reducing dynamic joint loading is a key strategy included in injury prevention landing mechanics programs. Previous research has noted the importance of increased knee flexion to reduce vertical ground reaction forces (vGRF), and relationship between strength asymmetry asymmetrical following injury. PURPOSE: To determine if how kinematics at hip, knee, ankle, as well quadriceps contribute vGRF single limb task. METHODS: Thirty-four physically active males (Age: 27.6 ± 4.6yrs; Height: 177.74...

Individuals who have undergone anterior cruciate ligament reconstruction (ACLR) reduced muscle function that has been shown to persist for many years post-surgery. The ability predict future levels of neuromuscular with the use early-on inflammatory markers may assist clinicians better target common deficits seen after ACLR. PURPOSE: purpose this study is determine if inflammation and patient reported outcomes one month post-surgery at six months METHODS: Nineteen patients underwent ACLR...