ABSTRACT
This study examined reliability and validity of the Fulltrack AI application to identify cricket ball landing position (line, length). Nine hundred and thirty-two deliveries were compared to 3D motion capture, the criterion measure, with 836 included in analysis (516 bowled (pace = 420, spin = 96), 320 SidearmTM; 301 facing a batter). Agreement analysis indicated an intraclass correlation coefficient of >0.96 for raw and filter 3D line and length data, compared to Fulltrack AI. The coefficient of variation was acceptable for length (<10%) and larger for line (23.82%), albeit with a smaller standard error of measurement (SEM = 0.05 m), improving with outliers removed. Bland-Altman plots confirmed good statistical agreement between devices, with limits of agreement largely within maximal allowable difference values. There are potential practical application considerations, given SEM = 0.47 m for length (diameter of seven cricket balls); with greater variability detecting length closer to the batters-end, and line closer to the bowlers-end. Validity, using a generalised additive model, showed no significant differences between devices (p > 0.05), with no condition-based interaction effects. The Fulltrack AI application enables ecologically valid assessment of bowling performance. Considering the trade-off between this and the accuracy of information is warranted when deciding how best to apply it to coaching environments to support augmented feedback.
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Digital technologies are changing how anatomy is taught tremendously. However, little is known about the effective integration of multimodal digital resources when concurrently provided in an anatomy course. To address this question, an array of digital anatomy resources including Augmented Reality (AR) and Virtual Reality (VR) anatomy resources were concurrently trialed by a total of 326 undergraduate and postgraduate students across three undergraduate (systemic anatomy, neuroanatomy, and regional anatomy) and one postgraduate anatomy (applied musculoskeletal anatomy) curricula in 2022. A five-point Likert scale learning and teaching survey was conducted to evaluate students' experiences, preferences, and perceptions. Most undergraduate (81% systemic anatomy, 76% neuroanatomy, and 87% regional anatomy) and postgraduate (97%) participants across the four cohorts felt confident in studying anatomy using digital resources and the majority (>80% undergraduate and >90% postgraduate) found the multimodal digital anatomy resources interactive and stimulating. The response showed that undergraduate (77% systemic anatomy, 81% neuroanatomy, and 97% regional anatomy) and postgraduate students (92%) consistently enjoyed their experience of using multimodal digital anatomy resources and thought that these resources enhanced their interest in studying anatomy. However, there are significant differences in ratings of specific digital resources among the junior (first-year undergraduates) and senior (third-year undergraduates and postgraduates) students. The virtual dissection table was uniformly preferred by the four cohorts of students across the board. Interestingly, however, VR anatomy and radiographic-based digital anatomy resources received diverse ratings. VR anatomy was valued most by junior undergraduate students (84%) who studied systemic anatomy compared to their senior counterparts (73%) who studied regional anatomy, whereas radiographic-based digital anatomy resources were more valued by the postgraduate students (93%) compared to undergraduates (65% systemic anatomy, 73% neuroanatomy, and 48% regional anatomy). This study identifies that while students uniformly appreciate the value of multimodal digital anatomy teaching, there is a clear difference in their perceptions towards individual resources, likely in a course-specific manner. We conclude that the selection and adoption of digital anatomy tools must be tailored as part of course design and that digital anatomy tools should be used in combination to provide an effective learning experience for students.
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BACKGROUND: The managerial position affects stress and job satisfaction of workers, but these influences have always been studied separately. OBJECTIVE: We aimed to assess bivariate influence of the managerial position on workers' stress and job satisfaction and the inter-relationship of these indicators over time. METHODS: We have analyzed data from workers who use the Wittyfit software, collected annually between 2018 and 2021. Stress and job satisfaction were evaluated by self-report questionnaires. Job position (manager or employee) was provided by the software's client companies. RESULTS: Data of 704 workers were included in the study. Cross-sectional and longitudinal multivariate analyses revealed that managerial position improves job satisfaction (p<0.001), but not stress (p = 0.4). Overall, while workers' job satisfaction has improved (p<0.001), stress has remained stable over time (p = 0.3). Three latent groups, with specific evolutionary multi-trajectory of stress and job satisfaction were identified in the sample (entropy = 0.80). Age and seniority, but not gender tended to influence managers' and employees' indicators. Over time, stress and job satisfaction have tended to negatively interconnect, in cross-section and in a cross-lagged manner (p<0.001). CONCLUSIONS: The managerial position improves workers' job satisfaction but has no effect on stress. Sociodemographics including age and seniority, but not gender, can affect this relationship. Stress and job satisfaction can influence each other, both cross-sectionally and over time. To be more effective, organizations should implement holistic strategies targeting multiple indicators. TRIAL REGISTRATION: Clinicaltrials.gov: NCT02596737.
Subject(s)
Biological Evolution , Job Satisfaction , Humans , Cross-Sectional Studies , Entropy , Multivariate AnalysisABSTRACT
OBJECTIVE: Job satisfaction is an emerging indicator for measuring workers' occupational well-being; however, this has been poorly studied in managers. We aimed to explore job satisfaction between managers and employees and assess its factors. METHODS: Data from Wittyfit's users were collected between January 2018 and February 2020. Volunteers anonymously provided their sociodemographic profile, their sense of job satisfaction, and their psychosocial feelings (ambiance, meaning, organization, recognition, values, work-life balance). RESULTS: Data of 10,484 employees and 836 managers were collected. Job satisfaction was higher in managers than employees. All psychosocial factors had an impact on job satisfaction in workers. There was a higher prevalence of satisfied managers than employees. Managerial position and other sociodemographic variables influenced this prevalence. CONCLUSIONS: Managers seem to be more satisfied than employees. Psychosocial and sociodemographic factors can influence workers' job satisfaction.
Subject(s)
Emotions , Job Satisfaction , Humans , Cross-Sectional Studies , Personal Satisfaction , Work-Life Balance , Surveys and QuestionnairesABSTRACT
ABSTRACT: Edwards, T, Weakley, J, Woods, CT, Breed, R, Benson, AC, Suchomel, TJ, and Banyard, HG. Comparison of countermovement jump and squat jump performance between 627 state and non-state representative junior Australian football players. J Strength Cond Res 37(3): 641-645, 2023-This cross-sectional study investigated differences in lower-body power of state and nonstate representative junior Australian football (AF) players through countermovement jump (CMJ) and squat jump (SJ) performance. A total of 627 players performed the CMJ and SJ at the end of the preseason phase over a 2-week period, with each player grouped according to their age (under 18 [U18] or under 16 [U16]), and highest competition level played (state representation and nonstate representation). One-way multivariate analysis of variance (MANOVA), follow up ANOVA's, and Cohen's d effect sizes were used to identify significant main effects and between-group differences. Statistical significance was set at α < 0.05. Significant small-to-moderate effect size differences were observed between competition level, with state U18 and U16 players recording greater CMJ and SJ height, and peak power (PP), compared with their nonstate representative peers, respectively. Similarly, significant small-to-moderate effect size differences existed between age groups, with nonstate U18 players recording greater CMJ and SJ height and PP than nonstate U16 counterparts. However, state U18 and state U16 only differed in CMJ PP. No differences were found between competition level or age groups for the difference between CMJ and SJ jump height (CMJSJ diff ). Together, these findings suggest that state and nonstate representative junior AFs may have a similar ability to use the stretch-shortening cycle, despite state representative players jumping higher in the CMJ and SJ.
Subject(s)
Athletic Performance , Team Sports , Humans , Australia , Cross-Sectional Studies , Muscle StrengthABSTRACT
Individuals with depressive symptoms often experience changes in physical activity and lifestyle factors. Despite the benefits of exercise, mental health clinicians often do not refer for or prescribe exercise as part of traditionally accepted models of care for consumers with depression and anxiety. The aims were to investigate: (i) mental health clinicians' understanding of the relationship between exercise and mental health, (ii) if and how exercise is used by mental health clinicians in treatment for depression and anxiety, and (iii) the barriers to prescription of exercise. A descriptive qualitative method was used, and data were collected via individual semi-structured interviews. Ten mental health clinicians with varying backgrounds participated in this study. The data driven inductive analysis of participants views identified three themes: (i) knowing and not knowing, (ii) consumer comorbidities - the risk and benefit dilemma, and (iii) protecting vulnerable consumers. Enhancing clinicians' knowledge of the beneficial role of exercise in treatment for consumers' experiencing depression and anxiety is an important step. Mental health services can support integration of exercise by implementing policies and training for staff to support exercise prescription, and the role and referral of exercise and physical activity specialists, as part of routine care to improve clinical outcomes for consumers. Additional considerations should be given to fiscal support to access exercise as an adjunct therapy.
Subject(s)
Mental Disorders , Mental Health , Humans , Mental Disorders/therapy , Depression/therapy , Anxiety Disorders/therapy , Anxiety/therapy , ExerciseABSTRACT
Augmented feedback, including that provided using technology, can elicit multifaceted benefits on perceptual-motor learning and performance of sporting skills. However, current considerations of the applied value in supporting learning and teaching cricket skill is limited. This systematic review with meta-analysis aimed to understand the role and effectiveness of feedback-involved interventions on skill-based performance outcomes in cricket-related research. Six electronic databases were searched (SPORTDiscus, CINAHL, MEDLINE, Scopus, Web of Science and PsycINFO). Of 8,262 records identified, 11 studies met inclusion criteria; five of which were included in meta-analyses. Given no studies with an isolated feedback intervention-arm were identified, the two meta-analyses explored anticipation-based studies consisting of an intervention that included augmented feedback; positioned with respect to the key motor skill concepts of perception (anticipation accuracy) and action (performance success). Despite results highlighting improved performance outcomes for the feedback-involved intervention groups, with a large effect size for improved anticipation accuracy (Hedge's g = 1.21, 95% CIs [-0.37, 2.78]) and a medium effect size for overall performance success (Hedge's g = 0.55, 95% CIs [-0.39, 1.50]), results were not statistically significant and should be interpreted with caution given the wide confidence intervals. Considering the small number of studies available, in addition to the lack of isolated feedback protocols, further research is warranted to thoroughly explore the impact of augmented feedback on skill-based performance in cricket. Beyond the meta-analyses, the review also explored all included studies from an ecological dynamics perspective; presenting future avenues of research framed around evaluating the applied value of using augmented feedback (mediated with or without technology) for learning and teaching skill in cricket. Trial registration The protocol was preregistered with Open Science Framework (osf.io/384pd).
Subject(s)
Learning , Motor Skills , Feedback , Clinical Competence , TechnologyABSTRACT
INTRODUCTION: A metabolic equivalent (MET) is one of the most common methods used to objectively quantify physical activity intensity. Although the MET provides an 'objective' measure, it does not account for inter-individual differences in cardiorespiratory fitness. In contrast, 'relative' measures of physical activity intensity, such as heart rate reserve (HRR), do account for cardiorespiratory fitness. The purpose of this systematic review with meta-regression was to compare measures of absolute and relative physical activity intensity collected during walking. METHODS: A systematic search of four databases (SPORTDiscus, Medline, Academic Search Premier and CINAHL) was completed. Keyword searches were: (i) step* OR walk* OR strid* OR "physical activity"; (ii) absolute OR "absolute intensity" OR mets OR metabolic equivalent OR actigraph* OR acceleromet*; (iii) relative OR "relative intensity" OR "heart rate" OR "heart rate reserve" OR "VO2 reserve" OR VO2* OR "VO2 uptake" OR HRmax* OR metmax. Categories (i) to (iii) were combined using 'AND;' with studies related to running excluded. A Bayesian regression was conducted to quantify the relationship between METs and %HRR, with Bayesian logistic regression conducted to examine the classification agreement between methods. A modified Downs and Black scale incorporating 13 questions relative to cross-sectional study design was used to assess quality and risk of bias in all included studies. RESULTS: A total of 15 papers were included in the systematic review. A comparison of means between absolute (METs) and relative (%HRR, %HRmax, %VO2R, %VO2max, HRindex) values in 8 studies identified agreement in how intensity was classified (light, moderate or vigorous) in 60% of the trials. We received raw data from three authors, incorporating 3 studies and 290 participants. A Bayesian random intercept logistic regression was conducted to examine the agreement between relative and absolute intensity, showing agreement in 43% of all trials. Two studies had identical relative variables (%HRR) totalling 240 participants included in the Bayesian random intercept regression. The best performing model was a log-log regression, which showed that for every 1% increase in METs, %HRR increased by 1.12% (95% CI: 1.10-1.14). Specifically, the model predicts at the lower bound of absolute moderate intensity (3 METs), %HRR was estimated to be 33% (95%CI: 18-57) and at vigorous intensity (6 METs) %HRR was estimated to be 71% (38-100). CONCLUSION: This study highlights the discrepancies between absolute and relative measures of physical activity intensity during walking with large disagreement observed between methods and large variation in %HRR at a given MET. Consequently, health professionals should be aware of this lack of agreement between absolute and relative measures. Moreover, if we are to move towards a more individualised approach to exercise prescription and monitoring as advocated, relative intensity could be more highly prioritised.
Subject(s)
Exercise Test , Oxygen Consumption , Humans , Oxygen Consumption/physiology , Cross-Sectional Studies , Bayes Theorem , WalkingABSTRACT
The recent focus on the bidirectional heart-brain interactions in psychoneurophysiological research has led to a variety of findings suggesting vagal activity is associated with cognition and, possibly, specifically with executive functioning. This systematic review and meta-analysis aimed to provide a better understanding of the association between vagally-mediated heart rate variability (HRV) and executive functioning. We included 13 correlational studies. We found a small positive association between vagally-mediated HRV and executive functioning (r = .19, 95% CI .15 to .23, p < .0001) using a quantitative synthesis of existing studies with random-effect models. Conducting meta-regression analyses, we found that vagally-mediated HRV predicts cognitive inhibition and cognitive flexibility more than working memory. In addition to the specific executive function measured, this relationship is moderated by the HRV measurement used, and age. After proposing a theoretical interpretation of the results, we emphasized the need for further research in light of the methodological issues identified in the included studies, and we outline several aspects to consider in future studies.
Subject(s)
Executive Function , Vagus Nerve , Brain , Executive Function/physiology , Heart Rate/physiology , Humans , Vagus Nerve/physiologyABSTRACT
BACKGROUND: We conducted a systematic review and meta-analysis to assess the effects of lifestyle intervention on telomere length (TL). METHOD: Four databases were searched for studies reporting TL in leukocytes, before and after a lifestyle intervention. We computed random-effects meta-analysis on TL within intervention and control group after versus before intervention, and on changes in TL between groups. Sensitivity analyses and Meta-regression were conducted. RESULTS: We included 20 studies in the systematic review (2995 participants, mean 50.3 years old, 77% women, 2045 following an intervention and 950 controls) and 19 in the meta-analysis. TL were similar at baseline between intervention and control groups. The physical activity ± diet group had an increase in TL (Effect size 0.17, 95%CI 0.03-0.31, p = 0.020) using changes within the intervention group, whereas TL shortened in the control group (-0.32, -0.61 to -0.02, p = 0.037). TL was longer in the physical activity ± diet intervention group (0.24, 0.08-0.40, p = 0.004) compared to controls after the intervention. Sensitivity analysis gave similar results. Meta-regressions demonstrated that combining strength and endurance exercise increased TL more than endurance alone or strength alone. CONCLUSION: A lifestyle intervention with physical activity ± diet can increase telomere length, independently of population characteristics or baseline TL.
Subject(s)
Life Style , Telomere , Exercise , Female , Humans , Male , Nutritional StatusABSTRACT
BACKGROUND: Karasek's Job Demand-Control-Support model is the gold standard to assess the perception of work; however, this model has been poorly studied among managers. We aimed to explore the perception of work (job demand, control, and support) in managers, and to quantify their risk of job strain (high job demand and low job control) and isostrain (job strain with low job support). METHODS: We conducted a cross-sectional study on workers from various French companies using the Wittyfit software. Job demand, control, and support were evaluated by self-reported questionnaires, as well as sociodemographic data. RESULTS: We included 9257 workers: 8488 employees (median age of 45 years, median seniority of 10 years, 39.4% women) and 769 managers (463 were more than 45 years old, 343 with more than 10 years of service, 33.3% women). Managers had higher mean ± SD levels than employees in job control (79.2 ± 14.9 vs. 75.4 ± 16.9) and job support (25.2 ± 5.1 vs. 24.0 ± 6.1) (p < 0.001). Compared to employees, managers had a 37% decreased risk of job strain (OR = 0.63, 95% CI 0.52 to 0.77) and a 47% decreased risk of isostrain (OR = 0.53, 95% CI 0.40 to 0.69) (p < 0.001). Workers over age 45 (OR = 1.26, 95% CI 1.14 to 1.40, p < 0.001) and women (OR = 1.12, 95% CI 1.01 to 1. 25, p = 0.03) were at greater risk of job strain. Furthermore, workers over age 45 (OR = 1.51, 95% CI 1.32 to 1.73, p < 0.001), workers with over 10 years of service (OR = 1.35, 95% CI 1.16 to 1.56, p < 0.001), and women (OR = 1.15, 95% CI 1.00 to 1.31, p = 0.04) were at greater risk of isostrain. CONCLUSIONS: Managers seem to have higher autonomy and greater social support and therefore are less at risk of job strain or isostrain than employees. Other factors such as age, seniority, and sex may influence this relationship. TRIAL REGISTRATION: Clinicaltrials.gov: NCT02596737.
Subject(s)
Social Support , Stress, Psychological , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Surveys and QuestionnairesABSTRACT
This study assesses the relationship between an inexpensive and an established inertial measurement device for the measurement of movement and jumps in netball. Twenty-five female netballers participated in this study (11 elite and 14 sub-elite). Two inertial measurement devices (Catapult ClearSky T6 and VERT Classic) were worn simultaneously during a training session. The 'Kinetic Energy' output provided by the VERT device was compared to the total PlayerLoad collected by the ClearSky T6 device. Automated total jump counts were also compared across devices. A correlation of r = 0.76 (95% confidence interval [CI]; 0.52 to 0.89) was identified between total PlayerLoad and 'Kinetic Energy'. Similarly, a correlation of r = 0.81 (95% CI; 0.61 to 0.91) was identified for the relationship between ClearSky T6 jump count and VERT jump count. Mean bias of 1.7 jumps (95% CI; -2.5 to 5.8) with 95% limits of agreement (-17.9 to 21.3) were found when comparing the jump counts between the ClearSky T6 and VERT devices. The correlations found in this study indicate that the VERT devices may be an accessible alternative for sub-elite athletes; however, the wide confidence intervals and limits of agreement warrant caution.
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BACKGROUND: Understanding the experiences of general practice (GP) residents caring for dependent elderly people during the first lockdown as part of the countries COVID-19 pandemic strategy. The aim was to explore themes that could explain the gap between the missions and values at the heart of GP practice during this period of strict isolation. METHOD: Qualitative study using an iterative approach. Semi-structured interviews were conducted with 13 GP residents using a pre-established interview guide. Audio recordings were transcribed verbatim. Data were analyzed according to a coding grid, developed using Nvivo software (NVivo Qualitative Data Analysis Software; QSR International Pty Ltd. Version Release 1.5.1 (940) 2021), to identify emerging themes. RESULTS: Three themes emerged from this qualitative research: cognitive dissonance, psychosocial risks, and fear. General practice residents have lived in the paradox between care and deprivation of liberty of dependent elderly people. CONCLUSION: The results suggest that the GP residents experienced a form of work-related suffering in this situation of deprivation of liberty of dependent elderly people. The present research serves as a pilot study to explore how GP residents experienced their care of locked-up dependent elderly people.
Subject(s)
COVID-19 , General Practice , Aged , Communicable Disease Control , Humans , Pandemics , Pilot Projects , Qualitative Research , SARS-CoV-2ABSTRACT
BACKGROUND: Smoking is a major public health problem. Although physicians have a key role in the fight against smoking, some of them are still smoking. Thus, we aimed to conduct a systematic review and meta-analysis on the prevalence of smoking among physicians. METHODS: PubMed, Cochrane, and Embase databases were searched. The prevalence of smoking among physicians was estimated and stratified, where possible, by specialties, continents, and periods of time. Then, meta-regressions were performed regarding putative influencing factors such as age and sex. RESULTS: Among 246 studies and 497,081 physicians, the smoking prevalence among physicians was 21% (95CI 20 to 23%). Prevalence of smoking was 25% in medical students, 24% in family practitioners, 18% in surgical specialties, 17% in psychiatrists, 16% in medical specialties, 11% in anesthesiologists, 9% in radiologists, and 8% in pediatricians. Physicians in Europe and Asia had a higher smoking prevalence than in Oceania. The smoking prevalence among physicians has decreased over time. Male physicians had a higher smoking prevalence. Age did not influence smoking prevalence. CONCLUSION: Prevalence of smoking among physicians is high, around 21%. Family practitioners and medical students have the highest percentage of smokers. All physicians should benefit from targeted preventive strategies.
Subject(s)
Physicians , Students, Medical , Humans , Male , Prevalence , Smoking/epidemiology , Tobacco SmokingABSTRACT
BACKGROUND: Leptin is a satiety hormone mainly produced by white adipose tissue. Decreasing levels have been described following acute stress. OBJECTIVE: To conduct a systematic review and meta-analysis to determine if leptin can be a biomarker of stress, with levels decreasing following acute stress. METHODS: PubMed, Cochrane Library, Embase, and ScienceDirect were searched to obtain all articles studying leptin levels after acute stress on 15 February 2021. We included articles reporting leptin levels before and after acute stress (physical or psychological) and conducted random effects meta-analysis (DerSimonian and Laird approach). We conducted Meta-regressions and sensitivity analyses after exclusion of groups outside the metafunnel. RESULTS: We included seven articles-four cohort and three case-control studies-(28 groups) from 27,983 putative articles. Leptin levels decreased after the stress intervention (effect size = -0.34, 95%CI -0.66 to -0.02) compared with baseline levels, with a greater decrease after 60 min compared to mean decrease (-0.45, -0.89 to -0.01) and in normal weight compared to overweight individuals (-0.79, -1.38 to -0.21). There was no difference in the overweight population. Sensitivity analyses demonstrated similar results. Levels of leptin after stress decreased with sex ratio-i.e., number of men/women-(-0.924, 95%CI -1.58 to -0.27) and increased with the baseline levels of leptin (0.039, 0.01 to 0.07). CONCLUSIONS: Leptin is a biomarker of stress, with a decrease following acute stress. Normal-weight individuals and women also have a higher variation of leptin levels after stress, suggesting that leptin may have implications in obesity development in response to stress in a sex-dependent manner.
Subject(s)
Leptin/blood , Stress, Psychological/blood , Biomarkers/blood , Humans , Regression Analysis , Time FactorsABSTRACT
Long-term maintenance of changes in cardiovascular risk factors and physical capacity once patients leave the supervised program environment have not previously been reported. This study investigated the changes in physical capacity outcomes and cardiovascular risk factors in an Australian cardiac rehabilitation setting, and the maintenance of changes in these outcomes in the 12 months following cardiac rehabilitation attendance. Improvements in mean (95% CI) cardiorespiratory fitness (16.4% (13.2-19.6%), p < 0.001) and handgrip strength (8.0% (5.4-10.6%), p < 0.001) were observed over the course of the cardiac rehabilitation program, and these improvements were maintained in the 12 months following completion. Waist circumference (p = 0.003) and high-density lipoprotein cholesterol (p < 0.001) were the only traditional cardiovascular risk factors to improve during the cardiac rehabilitation program. Vigorous-intensity aerobic exercise was associated with significantly greater improvements in cardiorespiratory fitness, Framingham risk score, and waist circumference in comparison to moderate-intensity exercise. An increase in the intensity of the exercise prescribed during cardiac rehabilitation in Australia is recommended to induce larger improvements in physical capacity outcomes and cardiovascular risk. A standardized exercise test at the beginning of the rehabilitation program is recommended to facilitate appropriate prescription of exercise intensity.
Subject(s)
Cardiac Rehabilitation , Cardiovascular Diseases , Australia/epidemiology , Cardiovascular Diseases/epidemiology , Exercise Therapy , Hand Strength , Heart Disease Risk Factors , Humans , Risk FactorsABSTRACT
BACKGROUND: The benefits of breastfeeding are widely known; however, continuation after returning to work (RTW) is not. We aimed to conduct a systematic review and meta-analysis to assess the prevalence of breastfeeding after RTW. The secondary objectives were to compare the economic statuses between continents. METHOD: PubMed, Cochrane Library, Base, and Embase were searched until 1 September 2020, and two independent reviewers selected the studies and collated the data. To be included, articles needed to describe our primary outcome, i.e., prevalence of breastfeeding after RTW. RESULTS: We included 14 studies, analyzing 42,820 women. The overall prevalence of breastfeeding after RTW was 25% (95% CI, 21% to 29%), with an important heterogeneity (I2 = 98.6%)-prevalence ranging from 2% to 61%. Stratification by continents and by GDP per capita also showed huge heterogeneity. The Middle East had the weakest total prevalence with 10% (6% to 14%), and Oceania the strongest with 35% (21% to 50%). Despite the prevalence of breastfeeding in general increasing with GDP per capita (
Subject(s)
Breast Feeding , Return to Work , Female , Humans , Middle East , Socioeconomic FactorsABSTRACT
Progression of prescribed exercise is important to facilitate attainment of optimal physical capacity during cardiac rehabilitation. However, it is not clear how often exercise is progressed or to what extent. This study evaluated whether exercise progression during clinical cardiac rehabilitation was different between cardiovascular treatment, age, or initial physical capacity. The prescribed exercise of sixty patients who completed 12 sessions of outpatient cardiac rehabilitation at a major Australian metropolitan hospital was evaluated. The prescribed aerobic exercise dose was progressed using intensity rather than duration, while repetitions and weight lifted were utilised to progress resistance training dose. Cardiovascular treatment or age did not influence exercise progression, while initial physical capacity and strength did. Aerobic exercise intensity relative to initial physical capacity was progressed from the first session to the last session for those with high (from mean (95%CI) 44.6% (42.2-47.0) to 68.3% (63.5-73.1); p < 0.001) and moderate physical capacity at admission (from 53.0% (50.7-55.3) to 76.3% (71.2-81.4); p < 0.001), but not in those with low physical capacity (from 67.3% (63.7-70.9) to 85.0% (73.7-96.2); p = 0.336). The initial prescription for those with low physical capacity was proportionately higher than for those with high capacity (p < 0.001). Exercise testing should be recommended in guidelines to facilitate appropriate exercise prescription and progression.
Subject(s)
Cardiac Rehabilitation , Australia , Exercise , Exercise Test , Exercise Therapy , HumansABSTRACT
OBJECTIVE: To investigate the effects of exercise supervision on short- and longer-term moderate-vigorous physical activity (MVPA) participation. METHODS: Fifty-six Australian university employees completed a 16-week moderate-to-high intensity aerobic and resistance exercise intervention, and the international physical activity questionnaire (IPAQ) 15âmonths later. Participants received either personal (SUP; nâ=â21) or non-personal (NPS; nâ=â19) exercise supervision at an onsite facility or exercised offsite with no supervision (CON; nâ=â16). RESULTS: A linear mixed model identified a significant groupâ×âtime interaction effect for MVPA, with increases at 15-month follow-up for CON only. Pooled data suggested more participants completed ≥500 MET-minutes of weekly MVPA at 16âweeks (66%) and 15-month follow-up (68%) compared to baseline (54%). CONCLUSIONS: A comprehensive health and fitness assessment and individually tailored exercise without personal supervision may promote ongoing MVPA.
Subject(s)
Exercise , Workplace , Australia , Follow-Up Studies , HumansABSTRACT
The aim of this study was to assess the differences in movement intensity demands between training activities and competition match-play in elite netball. Twelve elite female netballers (mean ± SD, age = 25.9 ± 5.1 years; height = 178.6 ± 8.9 cm, body mass = 71.1 ± 7.1 kg) competing in Australia's premier domestic netball competition participated. Data were collected across the season from all pre-season training sessions (n = 29), pre-season practice matches (n = 8), in-season training sessions (n = 21), in-season practice matches (n = 5), and competition matches (n = 15). Linear mixed-effects models assessed differences in PlayerLoad™ per minute and metreage per minute between activity types (Specialist, Skill Drills, Set-piece, Match Scenarios, Practice Match-play, and Competition Match-play) for positional groupings (Defenders, Midcourters, and Goalers). Competition Match-play resulted in higher (p < 0.05) PlayerLoad™ than all training activity types, with the largest magnitudes of difference between Specialist-Competition (d = 0.44-0.59; small to medium) and Skill Drills-Competition (d = 0.35-0.63; small to medium) for all positional groups. The smallest difference was found between Match Scenarios-Competition (d = 0.12-0.20; trivial to small) and Practice Match-play-Competition (d = 0.12-0.14; trivial). Competition Match-play also resulted in higher (p < 0.05) metreage per minute than Specialist (d = 0.23-0.53; small to medium), Skill Drills (d = 0.19-0.61; trivial to medium) and Set-piece (d = 0.05-0.31; trivial to small). Training activity demands in order of least to most similar to competition were specialist, skill drills, set-piece, match scenarios, and practice match-play. We provide data that enables coaches and physical preparation staff to incorporate progressions into their training session designs that can replicate the movement intensity demands of competition in training.