Several studies have shown that force application is influenced by different neuromuscular mechanisms depending on the time of force application analysis in isometric knee extension test (IKE), and a countermovement jump (CMJ) has contributions from knee extension, so some CMJ variables could be indicators of such mechanisms. Purpose: The aim of this study was to determine the level of relationship of variables of IKE and bilateral CMJ tests. Methods: Male college soccer players (n = 25; corporal mass = 72 ± 8 kg; height = 171 ± 5 cm; age = 22 ± 2 years) performed the IKE at two angles (60° and 75°) on an isokinetic machine and the CMJ on two uniaxial force platforms. To determine the level of relationship, Pearson’s correlation coefficient was analyzed between the test variables. Results: Trivial to moderate correlations (r = −0.45 to 0.62; p < 0.05) were found between CMJ variables and IKE in both knee angles (60° and 75°); Conclusions: The variables of IKE have a trivial to moderate correlation with the variables of CMJ, so the variables of CMJ could not be considered interchangeably with those of IKE and therefore considered indicators of neuromuscular mechanisms isolated from the knee extensor function. Longitudinal design (fatigue or training protocols) should be realized to corroborate these results.

The running cycle is distinguished from the gait cycle by the presence of a flight phase and distinct biomechanical characteristics. Despite existing frameworks for the temporal segmentation of running, these models remain underutilized in comprehensive biomechanical analyses, particularly for delineating phases, subphases, and key events. This study aims to provide a review of historical and contemporary temporal models of the running cycle and to introduce a unified structure designed to enhance analytical precision. The proposed framework divides the running cycle into two primary phases: (a) contact (subdivided into braking and propulsion subphases) and (b) flight, together with three critical events: (1) initial contact, (2) transition of braking–propulsion, (3) toe-off. While leg swing is not considered a phase in this framework due to temporal overlap with other phases, its recognized importance in running mechanics warrants its integrated analysis under the proposed temporal phase delineation. Additionally, methodologies for identifying these events through dynamometry and motion capture are evaluated, emphasizing their role in contextualizing kinetic and kinematic data. By integrating this temporal structure, the study aims to standardize biomechanical assessments of running technique, fostering more consistent comparisons across studies. Such integration has the potential to not only refine interpretations of running mechanics but also to enable practical advancements in athletic training, injury mitigation, and performance optimization.

Introduction: Afaf Meleis's Transitions Theory addresses how multidimensional transitions impact individuals' health and well-being, emphasizing the importance of properly managing these transitions. This study aims to critically and reflectively describe this theory by analyzing its strengths, limitations, usefulness, and significance in nursing education. Method: Chinn and Kramer's theory analysis methodology was used. The description was based on publications from 1994 to 2010, and a critical reflection was performed by searching for evidence in PubMed and CINAHL between 2015 and 2021. The MeSH descriptors "Nursing Theory," "Models," and "Nursing" were used, along with the keywords "Transition" and "Transition Theory Meleis," resulting in a total of 16 selected articles. Results: The Transitions Theory has several strengths and limitations. Among its strengths are its high generalizability and accessibility, allowing for application in various clinical and educational contexts. However, the theory has limited semantic clarity and is complex, which may hinder its full understanding and application. Conclusions: The theory is highly valued in nursing education, providing a valuable theoretical framework for understanding and addressing student transitions. Its application allows for incorporating lived contexts into the educational process, creating equitable and student-centered learning environments. More research is needed in Latin America to evaluate its usefulness and adapt it to regional contexts, promoting meaningful learning both in the classroom and in clinical practice.

Introduction: Anterior cruciate ligament (ACL) tears are among the most common knee injuries. These injuries compromise stability and function, frequently requiring surgical reconstruction. Understanding how postural control of the lower limb is affected in patients undergoing ACL reconstruction (ACLR) with different techniques, under the same rehabilitation protocol, is essential for optimizing recovery and improving functional outcomes after physical therapy. Objective: Compare the rehabilitation protocol effectiveness on postural control between the ACLR technique Bone-Tendon-Bone (BTB) and graft extracted from the semitendinosus and gracilis muscles (STG). Methodology: Posturographic evaluation was performed 16 weeks after surgery with a 16-week standardized rehabilitation protocol in a BTB group (n=30, age=32,16±8,73 years, weight=78,03±9,53 kg, height=1,69±0,06 m) and another STG group (n=38; age=34,84±9,4 years; weight=76,47±9,27 kg; height=1,67±0,05 m). Results: The investigation shows that there are no statistically significant differences in unilateral velocity (p>0.05) and unilateral area of the center of pressure (p>0.05) in subjects with ACLR using the BTB technique. Discussion: Two ACLR techniques were compared under the same 16-week rehabilitation protocol, evaluating balance and postural stability. The results showed that the BTB technique presented less difference between the injured and healthy limbs, demonstrating better results than the STG graft. However, methodological limitations were identified, as well as the need to consider factors such as limb dominance in future research. Conclusions: The BTB reconstruction technique presents better postural control results in patients undergoing 16 weeks of physiotherapy.

Introduction: Overweight/obesity is a global and national public health problem associated with cardiometabolic risk, functional limitation, and reduced health-related quality of life. Pragmatic evidence from primary healthcare (PHC) programs remains limited. Objective: To evaluate whether a 12-week concurrent training program delivered in PHC was associated with pre-post changes in cardiometabolic profile, functional performance, SF-36 total score, and serum IL-6 in adults with overweight/obesity. Methodology: Quasi-experimental single-group pre-post study in two CESFAMs (La Cisterna, Chile). Adults 18-60 years with BMI >25 kg/m² attended three sessions/week (planned aerobic and strength components) plus educational support and non-standardized nutritional counseling. Outcomes were assessed at baseline and week 12. Wilcoxon matched-pairs signed-rank tests were used, and effect sizes were estimated using r and rank-biserial correlation. Results: Forty participants completed assessments (estimated VO₂max n=18). Weight and BMI remained stable. Favorable pre-post changes were observed in HOMA-IR, HbA1c, triglycerides, VLDL, functional performance, 6MWT distance, estimated VO₂max, SF-36 total score, and IL-6. Total cholesterol increased modestly and should therefore be interpreted cautiously. Functional outcomes showed the largest effect sizes. Discussion: In a real-world PHC context, favorable cardiometabolic, functional, and person-centered changes may occur without marked weight loss; however, given the single-group pre-post design, these findings should be interpreted as preliminary and non-causal. Conclusions: A 12-week concurrent training program implemented in CESFAM was associated with favorable pre-post changes in insulin resistance, selected lipid fractions, function, quality of life, and IL-6. Controlled pragmatic studies are needed to confirm causality and implementation potential.