Browsing by Author "Duarte-Mendes, Pedro"
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- The effect of smoking on lung function changes during a 16-week combined exercise program in middle-aged workers: a latent growth curve analysisPublication . Silva, Manuela Fernanda Gomes Moreira da; Ferreira, José P.; Teixeira, Ana M.; Monteiro, Diogo; Duarte-Mendes, PedroPurpose To investigate the longitudinal changes in lung function of sedentary middle-aged workers over a 16-week combined exercise training program. Methods Thirty-six sedentary workers (53.70±6.92 years old) were randomly allocated to either a combined aerobic and resistance training program (n=18) or a control group (n=18). Lung function was evaluated through spirometry using a portable fow spirometer (Spiropalm 6MWT, Cosmed, Italy). Predicted percentages of forced vital capacity (FVC), forced expiratory volume in the frst second (FEV1), FEV1/FVC ratio, and mean forced expiratory fow between 25 and 75% of exhaled FVC (FEF25–75) were analyzed. Assessments were performed at baseline (M1), after 8-week (M2) and 16-week follow-up (M3). The changes in lung function were analyzed using the Latent Growth Curve Modeling that estimated interindividual and intraindividual growth paths. Results Smoking status revealed a signifcant efect on lung function growth with signifcant paths to intercept and slope for all models in both groups. The exercise group participants who are non-smokers revealed higher increases in FVC% (β=.22), FEV1% (β=.08), FEV1/FVC% ratio (β=.19), and FEF25–75% (β=.06) compared to those who are smokers from M1 to M3. The control group revealed a lower growth in lung function from M1 to M3, with a lower slope observed in smokers compared to non-smokers for FVC% (β=−.44), FEV1% (β=−.41), FEV1/FVC% (β=−.98), and FEF25–75% (β=−.52). Conclusion Our fndings suggest that a 16-week combined training program is an efective strategy to improve lung function among sedentary workers, with a higher magnitude of improvement for non-smokers compared to smokers. Trial registration Clinicaltrials.gov, NCT04868240. Registered April 30, 2021.
- Effects of a land and aquatic exercise-based program on pain, mobility and quality of life in patients with chronic low back pain: a study protocol for a randomized controlled trialPublication . Borges, Joana; Monteiro, Diogo; Silva, Manuela Fernanda Gomes Moreira da; Jacinto, Miguel; Pastilha, Tiago; Duarte-Mendes, Pedro; Shabnam ShahAliChronic low back pain (CLBP) is a disease with significant functional, emotional and social impact. Several interventions are proposed for its management and exercise is one of main, land-based or water-based. This study describes a randomized controlled trial that will analyze the effect of a combined aquatic and land-based exercise program compared to an aquatic-based program on pain, functional incapacity and quality of life in adults with CLBP. Additionally, it will analyze the effects of exercise cessation in the same outcomes.
- Effects of combined aerobic-resistance training on health-related quality of life and stress in sedentary adultsPublication . Fernanda M. Silva; Ferreira, José P.; Teixeira, Ana M.; Massart, Alain; Duarte-Mendes, PedroIntroduction: Poor quality of life and psychological stress have been associated with worse clinical outcomes, including anxiety and depression disorders, cardiovascular diseases, metabolic syndrome, type 2 diabetes, and premature mortality. Evidence suggested that physically active adults were more likely to report better quality of life and increased capacity to deal with stress, compared to their sedentary peers. This study examines the effects of 16 weeks of combined aerobic and resistance exercise training on health-related quality of life (HRQoL) and stress levels in sedentary adults. Methods: This study involved previously sedentary middle-aged workers (n = 36), randomized, and allocated into control (n = 18) and exercise (n = 18) groups. The exercise group performed 16 weeks of combined exercise training for 75 min, three times/week. The HRQoL was assessed using the SF-36 survey and Satisfaction with Life Scale. Stress levels were assessed subjectively using the Perceived Stress Scale and objectively by the salivary cortisol and alpha-amylase concentrations. Intra- and inter-group analysis were performed using a mixed ANOVA or Friedman’s test. Results: In relation to SF-36 results, a significant improvement in the mental component summary (p = 0.047, Kendall’s W = 0.170 (small effect)) and social functioning subdomain (p = 0.040, Kendall’s W = 0.179 (small effect)) was found for the exercise group after the intervention. A significant difference between groups was found in mean differences (Δ) in the mental health subdomain, with superiority in the exercise group (exercise group, Δ = 7.50 vs. control group, Δ = −5.00; p = 0.006). After 16 weeks of follow-up, the exercise group perceived reduced stress levels compared to the control group (exercise group, Δ = −3.67 points vs. control group, Δ = 0.94 points; p > 0.05); although not significant, this result is clinically relevant. The exercise program had no significant effect on salivary stress biomarkers. Discussion: The present study’s findings may have important clinical implications because they show that middle-aged sedentary workers are likely to benefit from adopting a regular combined exercise training regimen to promote better HRQoL (i.e., mental health component) and wellbeing.
- Intra-observer reproducibility and inter-observer agreement of Fels skeletal age assessments among male tennis players 8–16 yearsPublication . Sousa-e-Silva, Paulo; Coelho-e-Silva, Manuel J.; Celis-Moreno, Jorge M.; Costa, Daniela C.; Martinho, Diogo V.; Ribeiro, Luís Pedro; Oliveira, Tomas; Gonçalves-Santos, João; Tavares, Oscar M.; Castanheira, Joaquim M.; Pereira, Telmo; Conde, Jorge; Cayolla, Ricardo R.; Duarte-Mendes, Pedro; Myburgh, Gillian K.; Cumming, Sean P.; Malina, Robert M.Background Skeletal age (SA) is an estimate of biological maturity status that is commonly used in sport-related medical examinations. This study considered intra-observer reproducibility and inter-observer agreement of SA assessments among male tennis players. Methods SA was assessed with the Fels method in 97 male tennis players with chronological ages (CA) spanning 8.7–16.8 years. Radiographs were evaluated by two independent trained observers. Based on the difference between SA and CA, players were classified as late, average or early maturing; if a player was skeletally mature, he was noted as such as an SA is not assigned. Results The magnitude of intra-individual differences between repeated SA assessments were d = 0.008 year (observer A) and d = 0.001 year (observer B); the respective coefficients of variation were 1.11% and 1.75%. Inter-observer mean differences were negligible (t = 1.252, p = 0.210) and the intra-class correlation coefficient was nearly perfect (ICC = 0.995). Concordance of classifications of players by maturity status between observers was 90%. Conclusion Fels SA assessments were highly reproducible and showed an acceptable level of inter-observer agreement between trained examiners. Classifications of players by skeletal maturity status based on assessments of the two observers were highly concordant, though not 100%. The results highlight the importance of experienced observers in skeletal maturity assessments.
- Skeletal age assessed by Greulich-Pyle: intra-observer and inter-observer agreement among male pubertal tennis playersPublication . Celis-Moreno, Jorge M.; Martinho, Diogo V.; Coelho-e-Silva, Manuel J.; Fragoso, Isabel; Ribeiro, Luís Pedro; Gouveia, Élvio R.; Oliveira, Tomas; Gonçalves-Santos, João; Tavares, Oscar M.; Cayolla, Ricardo R.; Duarte-Mendes, Pedro; Konarski, Jan M.; Malina, Robert M.; Myburgh, Gillian K.; Cumming, Sean P.; Sherar, Lauren B.; Roberto ScendoniThe assessment of biological maturation is a central topic in pediatric exercise sciences. Skeletal age (SA) reflects changes in each bone of the hand and wrist from initial ossification to the adult state. This study examined intra-observer and inter-examiner agreement is Greulich-Pyle (GP) assessments of SA in 97 male tennis players 8.6–16.8 years of age. Two observers independently examined all films on two occasions using the GP method. The SA of each bone was evaluated. The mean and median of SAs assigned for each bone was the individual SA for each participant. The calculation was exclusively based on the bones that were not skeletally mature. Intra-observer mean differences were significant for several bones with better results by the experienced examiner (observer B). Comparisons between SA values of the two independent observers indicated significant differences for the ulna, metacarpals II and III, and distal phalanx V. Nevertheless, the magnitude of the bone-specific differences was small, perhaps trivial. Differences in individual SA values of the tennis players based on the non-mature bones of the hand-wrist were negligible based on the mean (0.04±0.39, t = 0.321, p = 0.749) or the median (0.05±0.58, t = 0.007, p = 0.994). Nevertheless, the current study confirmed examiners as a source of error in the estimation of SA using the Greulich-Pyle method and highlighted the importance of calculating SAs based on non-mature bones among adolescent players.
- Skeletal age assessed by Greulich-Pyle: intra-observer and inter-observer agreement among male pubertal tennis playersPublication . Celis-Moreno, Jorge M.; Martinho, Diogo V.; Coelho-e-Silva, Manuel J.; Fragoso, Isabel; Ribeiro, Luís Pedro; Gouveia, Élvio R.; Oliveira, Tomas; Gonçalves-Santos, João; Tavares, Oscar M.; Cayolla, Ricardo R.; Duarte-Mendes, Pedro; Konarski, Jan M.; Malina, Robert M.; Myburgh, Gillian K.; Cumming, Sean P.; Sherar, Lauren B.; Roberto ScendoniThe assessment of biological maturation is a central topic in pediatric exercise sciences. Skeletal age (SA) reflects changes in each bone of the hand and wrist from initial ossification to the adult state. This study examined intra-observer and inter-examiner agreement is Greulich-Pyle (GP) assessments of SA in 97 male tennis players 8.6–16.8 years of age. Two observers independently examined all films on two occasions using the GP method. The SA of each bone was evaluated. The mean and median of SAs assigned for each bone was the individual SA for each participant. The calculation was exclusively based on the bones that were not skeletally mature. Intra-observer mean differences were significant for several bones with better results by the experienced examiner (observer B). Comparisons between SA values of the two independent observers indicated significant differences for the ulna, metacarpals II and III, and distal phalanx V. Nevertheless, the magnitude of the bone-specific differences was small, perhaps trivial. Differences in individual SA values of the tennis players based on the non-mature bones of the hand-wrist were negligible based on the mean (0.04±0.39, t = 0.321, p = 0.749) or the median (0.05±0.58, t = 0.007, p = 0.994). Nevertheless, the current study confirmed examiners as a source of error in the estimation of SA using the Greulich-Pyle method and highlighted the importance of calculating SAs based on non-mature bones among adolescent players.