Considerable attention has been devoted to the concept of flexible emotion regulation, which de-emphasizes the importance of any specific regulatory strategy in favor of the flexible deployment of strategies in response to specific situational challenges. The bulk of research in this area has been conducted on adult samples. Research on emotion regulation flexibility (ERF) in youth has been documented in only a limited number of studies and using various definitions. This systematic review aims to gather and summarize different conceptualizations and methodological approaches of adolescent ERF. We incorporate these findings into a general framework to understand ERF and its role in adolescents\' emotional, behavioral and social functioning. Adhering to the PRISMA guidelines, 11 studies were included in the review. While ERF has been defined in various and inconsistent ways, the included studies utilized conceptualizations from two overarching domains: the regulation of expressed emotion and the repertoire of emotion regulation strategies. Promising approaches and future directions will be highlighted.

UNASSIGNED: Falls are the leading cause of accidental death among older persons, with postmenopausal women facing a greater hazard of falling due to osteoporosis. This study aimed to examine the effects of Taijiquan practice on balance control and functional fitness in at-risk females.
UNASSIGNED: Chinese women who self-reported a tendency to fall and had a baseline one-leg stand test time (4.1 s in the Taijiquan group) below the national average for their age group (60-64 years: 10.9 s, 65-69 years: 9.9 s) were assigned to either a control group (n = 26, mean age = 63.9 years) or a Taijiquan group (n = 24, mean age = 63.9 years). The Taijiquan group participated in a 12-week supervised intervention, while the control group maintained their daily activities. The average duration of each exercise session was 52 min. Static balance and functional fitness were assessed at the beginning and end of the intervention.
UNASSIGNED: After 12 weeks, the Taijiquan group significantly outperformed the control group in terms of balance, flexibility, and muscular fitness (all p < 0.05). Participants in the Taijiquan group improved their one-leg stand by 61.0% (+2.5 s, Hedge\'s g = 0.85), arm curl by 8.3% (+1.7 repetitions, g = 0.53), handgrip strength by 8.3% (+1.9 kg, g = 0.65), and sit-and-reach by 163.2% (+6.2 cm, g = 1.17).
UNASSIGNED: The improvement in balance, coupled with other functional fitness benefits, suggests that Taijiquan could serve as a useful exercise for older women with an elevated risk of falling.

Low back pain (LBP) is a common complaint among individuals engaged in physically demanding occupations, such as construction workers, luggage lifters, manual laborers, and drivers. One of the main problems facing modern healthcare is treating these people. The identification of distinct patient subgroups with non-specific LBP and the development of specialized, more effective therapies are of crucial significance to enhancing evaluation and treatment regimens. This case report describes the evaluation and management of non-specific LBP in a male construction worker who complained of severe low back discomfort. Enhancing the muscular endurance, strength, and flexibility of the back muscles and soft tissues is the main goal of exercise therapy, which is the key to the management of nonspecific LBP. This patient receives a four-week treatment regimen that includes movement control exercises and several advanced therapeutic modalities. The direction of movement control ensures the way patients sit when their back muscles contract. Back muscle activation rates are greater in the active extension group and lower in the flexion group. A comprehensive rehabilitation program that was effective for our patient, who was experiencing lower back discomfort. We assessed the efficacy of our outcome measures using a variety of outcomes, including the modified Oswestry disability index, visual analog scale, range of motion, Quebec back pain disability scale, and pressure biofeedback unit for muscle strength. In addition to a standard physiotherapy course, providing modern physiotherapeutic treatments was found to be more beneficial for enhancing the patient\'s overall health and quality of life.

This study investigates individual performance adaptations on 2 years of training between European Aerobics Championships. An elite, 22-year-old aerobic gymnast performed postural coordination test, Y-Balance test, squat and countermovement jumps, 60 s test of repeated jumps, an isokinetic leg muscle strength test, and the Wingate test. Postural stability and flexibility improved in terms of increased distance achieved in the Y-Balance test in the anterior (by 6.3%), posteromedial (by 2%), and posterolateral (by 4.8%) directions. Lower limb muscular endurance also increased, which can be corroborated by a reduced fatigue index in the 60 s test of repeated jumps (from 42% to 27% after the 1st and to 22% after the 2nd year of training). In addition, mean power increased during dominant (by 23.2% at 60°/s and by 18.5% at 180°/s) and non-dominant leg extension (by 4.9% at 180°/s and by 15.5% at 300°/s), plus dominant leg flexion (by 2.0% at 60°/s and by 6.9% at 300°/s). Similarly, peak torque/body weight ratio increased during dominant (by 24.9% at 60°/s, by 11.5% at 180°/s, and by 2.1% at 300°/s) and non-dominant leg extension (by 0.5% at 60°/s and by 6.4% at 300°/s), plus dominant leg flexion (by 1.7% at 60°/s and by 5.4% at 300°/s). However, 2 years of training failed to show any significant improvements in the explosive power of lower limbs and anaerobic performance. These findings indicate that general aerobic gymnastics training without any specific inputs leads to performance adaptation, namely, in abilities closely related to competition routine (dynamic balance and strength endurance of lower limbs).

The main objective of this person-centred study was to identify profiles of actual and perceived physical fitness among a sample of youth with intellectual disabilities (ID). Participants were 377 youth (60.4% boys) with mild (49.6%) to moderate (50.4%) ID recruited in Australia and Canada. Latent profile analyses revealed five profiles: (1) Underestimation of Average Physical Fitness (5.5% of the sample); (2) Moderate Overestimation of Low Physical Fitness (17.7%), (3) Moderate Underestimation of Average Physical Fitness (31.3%); (4) High Overestimation of Average Physical Fitness (28.3%); and (5) Moderate Underestimation of High Physical Fitness with an Accurate Estimation of Average Flexibility (17.2%). Profiles 1, 2, and 3 relatives to Profiles 4 and 5 included younger participants, more participants with moderate levels of ID, and participants with a higher body mass index. Additionally, profiles 1 and 3 also included a higher proportion of youth pursuing externally-driven motives and less frequently involved in sports outside of the school. In sum, our findings showed that the tendency of youth with ID to rely on upward or downward-lateral social comparisons may have resulted in a depreciation or overestimation of their low levels of physical fitness.

Objective: Rapid bone development in growing children causes excessive tension in the lower extremities\' muscles and tendons, leading to reduced flexibility and increased musculoskeletal disorder risk. Further, lack of exercise causes obesity. Therefore, we created a stretching exercise protocol to prevent musculoskeletal disorders in elementary school (middle and upper grades) children during their growth period, when rapid bone development begins. Patients and Methods: We examined the effects on pain, injury, and flexibility. Fifty-three (boys: 34, girls: 19) students in grades 3-5 (ages 9-11) performed the stretching exercises at school thrice a week for one year, and we compared the results before and a year after the intervention. Results: A three-minute stretching exercise routine achieved an intensity of 4.6-4.9 metabolic equivalents (METs; equivalent to brisk walking). Obesity (P=1.000), flexibility problems (inability to bend forward [P=0.754] or squat problems [P=1.000]), bone/joint pain (P=1.000), and injury (P=1.000) did not significantly increase. Conclusion: Stretching exercises during the growth period may help prevent childhood musculoskeletal disorders, obesity, and flexibility loss.

Flexibility of nanomaterials is challenging but worthy to tune for biomedical applications. Biocompatible silica nanomaterials are under extensive exploration but are rarely observed to exhibit flexibility despite the polymeric nature. Herein, a facile one-step route is reported to ultrathin flexible silica nanosheets (NSs), whose low thickness and high diameter-to-thickness ratio enables folding. Thickness and diameter can be readily tuned to enable controlled flexibility. Mechanism study reveals that beyond the commonly used surfactant, the \"uncommon\" one bearing two hydrophobic tails play a guiding role in producing sheeted/layered/shelled structures, while addition of ethanol appropriately relieved the strong interfacial tension of the assembled surfactants, which will otherwise produce large curled sheeted structures. With these ultrathin NSs, it is further shown that the cellular preference for particle shape and rigidity is highly dependent on surface chemistry of nanoparticles: under high particle-cell affinity, NSs, and especially the flexible ones will be preferred by mammalian cells for internalization or attachment, while this preference is basically invalid when the affinity is low. Therefore, properties of the ultrathin silica NSs can be effectively expanded and empowered by surface chemistry to realize improved bio-sensing or drug delivery.

UNASSIGNED: Significant impacts of heavy work investment on employee well-being and organizational performance have prompted its increasing importance as a research topic. The findings about good or evil of these repercussions are nonetheless inconclusive. The intersection of Heavy Work Investment construct with gender has not been explicitly addressed by previous literature review and research. Besides, the relevance of flexibility for women, as one of the key factors for successful work-family balance management, still remains to be analyzed.
UNASSIGNED: A literature review on Heavy Work Investment was conducted using the SPAR-4-SLR protocol, wherein 83 articles were selected from a pool of 208 previously identified works. Bibliometric and content analysis techniques were employed, including co-word analysis, to evaluate research production, impact, and trends in the gender perspective within Heavy Work Investment.
UNASSIGNED: As a result, a strategic diagram illustrates thematic topics, providing a clear understanding of the field\'s structure and evolution. Six thematic groups were identified, around work-family conflict as the central theme.
UNASSIGNED: The explicit consideration of a gender perspective in literature involves nuanced differences regarding the conclusions of studies with a broader focus. First, the emerging prominence of studies on China and Japan becomes clear with gender as the specific focus of the review, aiming to clarify the experiences women face in more traditional societies with a more decisive division of roles. Second, there is a shift in interest regarding the analysis of Job Demands and Job Resources. Despite the apparent decline in interest in the former, the focus in gender literature clearly shifts toward the side of Job Resources, showing potential for the future. It could be understood that in a context of talent war and employee retention efforts, priority is given to better understanding of facilitating individual and organizational factors for work-life balance, especially for women. Future research areas are identified, including gender differences in organizational support and the impact of flexible work on the work-life balance, providing valuable insights for academia, practitioners, and organizations. The need for more comprehensive cross-cultural and gender research is also made clear.

The aim of the study was to determine the role of isometric strength and range of motion in predicting Functional Movement Screen (FMS) scores of adults. A total of 120 participants (age = 34.62 ± 11.82 years; height = 170.56 ± 9.63 cm; weight = 73.62 ± 15.39 kg) volunteered to participate in the study. Anthropometric measurements were performed, including height, body weight, muscle mass, and body fat. Following this, the ranges of motion of the shoulder, hip, knee, and ankle joints were measured sequentially. Isometric strength and FMS tests were then performed. Hip extension isometric strength explained 23% of the variation in FMStotal. The common effect of knee flexion, shoulder flexion, and dorsiflexion joint range of motion explained 34% of the change in FMStotal (F (3-116) = 20.375, p < 0.001). A significant relationship (R = 0.658, R2 = 0.413) was found between hip extension isometric strength, knee flexion, shoulder flexion, and dorsiflexion range of motion and FMStotal (F (4-115) = 21.952, p < 0.001). The common effect of all these variables explains 43% of the change in FMStotal. The results indicate that the FMS test scores, which are utilized to evaluate the risk of injury in sedentary adults, can be significantly predicted by the effect of hip extension isometric strength and parameters related to knee flexion, shoulder flexion, and dorsiflexion joint range of motion. At this time, it is advised that range of motion and isometric strength be taken into account when determining a person\'s functional movement capacity.

Increasing evidence points out that Executive Functions (i.e., EFs) may be core mechanisms for the generation of resilient responses to adversity. A systematic review testing the relations between either affective (hot) and/or non-affective (cold) EFs (i.e., inhibition, flexibility and working memory updating) and resilience was conducted. A total of 449 articles were initially identified. After two steps of title-and-abstract (k = 449), and full-text reading filtering (k = 67), 11 studies were reviewed. Three studies included cold measures of working memory and supported significant positive relations between higher working memory functioning and higher trait resilience levels. One study included cold measures of inhibition and another one both hot and cold measures, with only the first one supporting a positive relation between more efficient inhibition and higher trait resilience levels. Finally, 7 studies measured flexibility in its cold and/or hot dimensions and overall supported significant relations between higher flexibility and higher levels of trait, process and outcome resilience measures. These results support the role of EFs performance to promote different forms of resilience. This review allows to identify different issues that need to be addressed in future research and highlight the need to integrate the analysis of all hot and cold EFs components to understand their role in the generation of resilience.