An innovative cardiac rehabilitation based on the power-force-velocity profile to further improve cardiorespiratory capacities in coronary artery disease patients: CITIUS study.

Aims: Individually optimizing the training programme of cardiac rehabilitation (CR) remains a major concern among coronary artery disease (CAD) patients. The power-force-velocity profile (PFVP) for a given task is usually assessed to improve performance in athletes through individualized training. Therefore, assessing PFVP on stationary cycle ergometer may allow better personalization of CR programme.

Importance of observer experience in clinical assessment of ankle and subtalar joint laxity: Validation of a multidirectional 3D opto-electronic motion analysis protocol.

Background: Role of ankle and subtalar ligaments remains poorly understood due to inconsistent literature. This study validates a protocol for analyzing multidirectional foot and ankle motions and assesses the impact of experience on clinical evaluations of ankle and subtalar instability.

Methods: Five cadaveric feet were tested using a 3D opto-electronic system to measure talus, tibia, and calcaneus motions under varying ligament conditions.

Effects of carbon versus plastic ankle foot orthoses on gait outcomes and energy cost in patients with chronic stroke.

Objective: To compare the walking performances of hemiplegic subjects with chronic stroke under 3 conditions: with a new standard carbon fibre ankle foot orthosis (C-AFO), with a personal custom-made plastic AFO (P-AFO), and without any orthosis (No-AFO).

Design: Randomized, controlled crossover design.

Patients: Fifteen chronic patients with stroke (3 women  and 12 men, 59 [10] years, 13 [15] years since injury).

Contribution of the Medial Hamstrings to Valgus Stability of the Knee.

Background: Multiligament knee injuries involving the medial side are common. When performing surgical reconstruction, use of the medial hamstrings (HS) as grafts remains controversial in this setting.

Purpose: To determine the role of the medial HS in stabilizing the valgus knee for different types of medial-sided knee injury.

Dynamic Force Production Capacities Between Coronary Artery Disease Patients vs. Healthy Participants on a Cycle Ergometer.

Background: The force-velocity-power (FVP) profile is used to describe dynamic force production capacities, which is of great interest in training high performance athletes. However, FVP may serve a new additional tool for cardiac rehabilitation (CR) of coronary artery disease (CAD) patients. The aim of this study was to compare the FVP profile between two populations: CAD patients vs.

Determining the change in length of the anterolateral ligament during knee motion: A three-dimensional optoelectronic analysis.

Background: The variation of the anterolateral ligament (ALL) length during knee motion is still unclear, and the knee position in which a reconstruction graft should be tensioned remains controversial. The objective of this study was to determine the variation of the ALL length during knee motion using a three-dimensional optoelectronic system.

Methods: Kinematic analyses of 20 cadaveric knees were performed using a Motion Analysis® system.

The anterolateral ligament: Anatomic implications for its reconstruction.

Background: The purpose of this study was to define the best anatomic parameters with which to perform an accurate anterolateral ligament (ALL) reconstruction. These parameters were anatomical insertions, allowing favorable isometry, length variation during flexion, and anthropometric predictors of ALL lengths.

Methods: A total of 84 fresh-frozen cadaver knees were dissected to analyze the ALL, focusing on its femoral insertion.

Criteria for Return to Sport after Anterior Cruciate Ligament reconstruction with lower reinjury risk (CR'STAL study): protocol for a prospective observational study in France.

Introduction: The decision regarding when to return to sport after an anterior cruciate ligament reconstruction (ACLR) is an important one. Using a variety of subjective and objective parameters, various attempts have been made to determine an optimal timeline for a return to sport after ACLR, but none have been validated.The aim of the present study is therefore to determine which criteria or combination of criteria could allow to return to sport with the lowest possible risk of reinjury.

The Acute Effect of Local Vibration As a Recovery Modality from Exercise-Induced Increased Muscle Stiffness.

Exercise involving eccentric muscle contractions is known to decrease range of motion and increase passive muscle stiffness. This study aimed at using ultrasound shear wave elastography to investigate acute changes in biceps brachii passive stiffness following intense barbell curl exercise involving both concentric and eccentric contractions. The effect of local vibration (LV) as a recovery modality from exercise-induced increased stiffness was further investigated.

Prediction of the biomechanical effects of compression therapy by finite element modeling and ultrasound elastography.

Goal: In the present study, the biomechanical response of soft tissues from the fascia cruris to the skin is studied in the human leg under elastic compression.

Methods: The distribution of elastic moduli in these tissues is measured for a volunteer at inactive and active muscle states using transient ultrasound elastography (TUSE). After registering the elasticity maps against magnetic resonance imaging scans of the same volunteer, patient-specific finite element (FE) models are developed for the leg cross section at inactive and active muscle states.

An evaluation of CT-scan to locate the femoral head centre and its implication for hip surgeons.

Purpose: The aim of this preliminary study was to determine the accuracy of CT-scan to locate the femoral head centre.

Methods: Eleven dried femurs were included for study. Three techniques were compared to determine femoral head centre (FHC) location: CT-scan, Motion Analysis and Faro-Arm.

Distraction osteogenesis using a longitudinal corticotomy.

Purpose: The purpose of this study was to evaluate whether the use of a longitudinal corticotomy (S-Z osteotomy) results in more rapid consolidation following distraction osteogenesis of short tibiae.

Methods: Sixty-seven lengthening procedures were performed in 51 patients ranging in age from nine to 38 (mean 25) years. Diagnoses included short stature (32 tibiae), postpolio limb deformity (22 tibiae), osteomyelitis (three tibiae), trauma (two tibiae) and other diagnoses (eight tibiae).

Study of patellar kinematics after reconstruction of the medial patellofemoral ligament.

Background: Medial patellofemoral ligament reconstruction is currently the technique of choice for the treatment of patellar instability. But what should be the most appropriate graft tension for optimal restoration of patellofemoral kinematics?

Methods: Six freshly frozen cadaveric knees were studied, the three bone segments were respectively equipped with opto-reflective markers. The acquisitions were made using the Motion Analysis System®.

In vitro analysis of patellar kinematics: validation of an opto-electronic cinematic analysis protocol.

Opto-electronic cinematic analysis has already proven useful in the investigation of patients with a knee replacement; however, neither patellar tracking nor the various positional parameters relevant to instability such as patellar tilt and/or patellar shift have ever been specifically evaluated using this type of system. The aim of this research was to validate the relevance of this type of cinematic analysis in order to use it in the evaluation of the main factors underlying patellar instability. Six fresh-frozen anatomical specimens were studied.