Effects of Multicomponent Exercise Training on the Health of Older Women with Osteoporosis: A Systematic Review and Meta-Analysis.

This study aimed to analyze the effects of multicomponent exercise training in older women with osteoporosis. We conducted a systematic review following the PRISMA guidelines and registered on PROSPERO (number CRD42022331137). We searched MEDLINE (via PubMed), Web of Science, Scopus, and CINHAL databases for randomized experimental trials that analyzed the effects of physical exercise on health-related variables in older women with osteoporosis. The risk of bias in the studies was verified using the Cochrane Collaboration tool and the Jadad scale was used to assess the methodological quality of the studies. Fourteen randomized controlled trials were included, with a total of 544 participants in the experimental group and 495 in the control group. The mean age of all participants was 68.4 years. The studies combined two to four different exercise types, including strength, aerobic, balance, flexibility, and/or functional fitness training. The practice of multicomponent training with an average of 27.2 weeks, 2.6 sessions per week, and 45 min per session showed improvements in strength, flexibility, quality of life, bone mineral density, balance, and functional fitness and reduced the risk of falls in older women with osteoporosis. Multicomponent training was shown to be effective in improving health-related variables in older women with osteoporosis.

Effects of two training programs on health variables in adults with chronic low back pain: a randomized clinical trial.

Aim: To analyze the effects of two training programs on health variables in adults with low back pain (LBP). Methods: Thirty-eight adults were randomly divided into three groups: resistance training (RG); resistance training with core training (RCG) and control (CG). Results: There were reductions in body mass index (BMI) in RG and RCG, waist circumference in RG and RCG, pain in RG, RCG and CG, CK in RCG, stress in RG and RCG, functional deficiency in RG and RCG and increases in trunk flexor and extensor strength in the RG and RCG. Conclusion: Resistance training, with or without core training exercises, reduced the levels of LBP, functional disability, stress and CK, and increased the strength of trunk flexors and extensors. Trial registration: Brazilian Clinical Trials Registry: ReBEC (RBR-5khzxz).

Resistance and core exercises can be an alternative treatment for adults with low back pain (LBP) that does not require any medicines. This study was designed to test the effectiveness of different exercise regimens on the health of people with low back pain. We divided adults with LBP into three groups: resistance training, resistance training with core training and a control group. We assessed the health of the participants by measuring certain chemicals in their blood samples, pain intensity, functional disability, perceived stress level and muscle strength. After 4 weeks, there were reductions in body mass index, waist circumference, pain, creatine kinase (CK ­ a natural chemical found in the bloodstream that may be higher when muscles are stressed or damaged), stress, functional impairment and increases in the strength of muscles involved in flexing the trunk (torso) in both intervention groups. Therefore, resistance training, with or without basic training exercises, is an effective form of treatment to reduce LBP.

Analysis of pain symptoms, flexibility and hydroxyproline concentration in individuals with low back pain submitted to Global Postural Re-education and stretching.

Aim: To evaluate pain, flexibility and hydroxyproline (HP) urinary levels in patients with nonspecific low back pain submitted to Global Postural Re-education (GPR) and stretching. Materials & methods: 39 individuals who reported low back pain were randomly assigned to a group submitted to GPR (GPRG) or stretching exercises (SG) for 8 weeks. Pain and flexibility were assessed using the Borg CR10 scale and goniometry, respectively. Results: The GPR group showed a significant reduction in the HP levels and significant improvements in flexibility after the intervention when compared with SG. Both groups presented a significant reduction in HP and pain after the intervention. Conclusion: Both interventions were effective in the treatment of low back pain. However, the GPR method presented better responses than stretching.

A systematic review of load control in football using a Global Navigation Satellite System (GNSS)

Abstract Aim: This systematic review aimed to evaluate various Global Navigation Satellite Systems (GNSS) receivers, based on the frequency applied, the number of satellites available, and the dilution of precision (DOP) presented to measure football player load control. Method: The systematic review followed the PRISMA recommendations. Four hundred and eighty-five articles were selected from two online databases (Scopus and ISI Web of Science) over five years, with 21 studies selected for this review. In these studies, the GNSS frequency ranged from 5 to 18 Hz, with 10 Hz as the most commonly used frequency. Results: Of the 21 selected studies, 20 presented the ideal horizontal dilution of precision (HDOP), and the number of satellites available varied from 5 to 20. There was no consensus on defining speed, acceleration, or deceleration zones. Conclusion: There was no uniformity in data collected from the devices. Most GNSS receivers do not adopt the international system of units (SI).

Analysis of the relationship between personality traits and leadership characteristics of handball coaches of school teams in the state of Rio de Janeiro, Brazil

Aim: This study aimed to investigate the relationship between personality traits and leadership characteristics of handball coaches of school teams in the state of Rio de Janeiro, Brazil. Method: The sample was composed of 31 male individuals (41.71 ± 9.61 years) registered as coaches at the Federation of Student Sports of Rio de Janeiro (FEERJ). The data collection instruments were the Eysenck Personality Questionnaire, the Revised Leadership Scale for Sport and a sociodemographic questionnaire. Results: The Pearson correlation test showed a moderate negative correlation between working time as a coach and coach ages and Psychoticism (P); a moderate positive correlation between Extroversion (E) and Positive Feedback (PF) behavior; a moderate positive correlation between Neuroticism (N) and PF; a moderate positive correlation between N and autocratic behavior. The ANOVA revealed that coaches in the infantile category exhibited higher levels of N than those in the juvenile category. The Social Support (SS) given by the coaches of the junior categories presented superior levels to those of the juvenile category. The SS of the coaches of the infantile category showed higher levels than those of the juvenile category. Conclusion: It was concluded that certain personality traits are associated with the leadership characteristics of the investigated coaches.(AU)

Análise da relação entre competência técnica e intenções morais em tomadas de decisão de árbitros de futebol: um estudo exploratório com crianças / Analysis of the relation between technical competence and moral intentions in soccer referee decisions: an exploratory study with children / Análisis de la relación entre competencia técnica e intenciones morales en tomas de decisión de árbitros de fútbol: un estudio exploratorio con niños

O objetivo do presente estudo foi investigar se, para crianças, errar e roubar constituem ações conceitualmente equivalentes entre si na conduta do árbitro de futebol, e se existe divergência de opinião entre meninos e meninas. Para tanto, utilizou-se um questionário fechado contendo três perguntas sobre a conduta dos árbitros de futebol durante as partidas da modalidade, aplicado a 46 crianças (25 meninos e 21 meninas) de oito a onze anos de idade (idade: 9,6 ± 0,83 anos), numa escola municipal do Rio de Janeiro. Para verificar a associação entre as respostas, o que sugere coerência na opinião da criança, e para verificar se há diferença de opinião entre os gêneros, empregou-se o teste de Qui-quadrado de Pearson. Observou-se que mais da metade da amostra relatou conhecer o papel do árbitro e mostrou coerência ao responder as questões. Isso pode refletir um nível de maturidade para compreender perguntas e julgar o árbitro. Não houve diferença estatística significativa entre meninos e meninas quanto à concordância das respostas. Assim, a maioria respondeu que, quando os árbitros erram, não o fazem de propósito. Sugere-se o trabalho com amostras maiores e a inclusão dos responsáveis pelas crian- ças em estudos futuros.

The objective of the present study was to investigate whether, for children, to err and to steal are actions conceptually equivalent to each other in the conduct of the soccer referee, and if there is divergence of opinion between boys and girls. For that, it was used a closed questionnaire containing three questions about the conduct of soccer referees during the games of the modality, applied to 46 children (25 boys and 21 girls) from eight to eleven years old (age: 9.6 ± 0.83 years), in a municipal school in Rio de Janeiro. To verify the association between the answers, which suggests coherence in the child's opinion, and to verify if there is a difference of opinion between the genres, the Pearson Chi-square was used. It was observed that more than half of the sample reported knowing the role of the referee and showed coherence in answering the questions. This may reflect a level of maturity to understand questions and judge the referee. There was no significant statistical difference between boys and girls as to the agreement of the answers. Thus, most answered that, when the referees err, they do not do it on purpose. It is suggested to work with larger samples and to include those responsible for the children in future studies.

El objetivo del presente estudio fue analizar si, para niños, errar y robar constituye acciones conceptualmente equivalentes entre sí en la conducta del árbitro de fútbol, y si existe divergencia de opinión entre niños y niñas. Para ello, se utilizó un cuestionario cerrado que conten- ía tres preguntas sobre la conducta de los árbitros de fútbol durante los partidos de la modalidad, aplicado a 46 niños (25 niños y 21 niñas) de ocho a once años de edad (edad: 9,6 ± 0,83 años), en una escuela municipal de Río de Janeiro. Para verificar la asociación entre las respuestas, lo que sugiere coherencia en la opinión del niño, y para verificar si hay diferencia de opinión de los géneros en este estudio se utilizó el Chi-cuadrado de Pearson. Se observó que más de la mitad de la muestra relató conocer el papel del árbitro y mostró coherencia al responder a las preguntas. Esto puede reflejar un nivel de madurez para entender preguntas y juzgar al árbitro. No hubo diferencia estadística significativa entre niños y niñas en cuanto a la concordancia de las respuestas, así, la mayoría respondió que, cuando los árbitros se equivocan, no lo hacen de propósito. Se sugiere el trabajo con muestras mayores y la inclusión de los responsables de los niños en estudios futuros.

Muscle strength, gh and igf-1 in older women submitted to land and aquatic resistance training / Força muscular, gh e igf-1 em idosas submetidas ao treinamento de força no solo e na água / Fuerza muscular, gh e igf-1 en adultas mayores sometidas al entrenamiento de fuerza en suelo y agua

ABSTRACT Introduction: Aging leads to decline in multiple organ systems associated to hormone alterations and loss of muscle mass and strength. Objective: To evaluate the effects of land and water resistance training on muscle strength, basal serum levels of GH, IGF-1, and IGFBP3 in elderly women. Methods: Subjects were distributed in three groups: land resistance training (LRT; n=10; age: 66.10±2.77 years), water resistance training (WRT; n=10; age: 67.10±3.54 years) and control (CG; n=10; age: 68.80±5.41 years). Muscle strength was assessed with the 1-RM test in bench press (BP) and leg press (LP) exercises. Serum levels of GH, IGF-1, and IGFBP3 were analyzed by chemiluminescence. Results: Repeated measures ANOVA showed elevated muscle strength in the BP only in LRT (D%=60.2%; p=0.0001) when compared to the CG (D%=46.73%, p=0.0001) and WRT (D%=32.49%, p=0.004). LRT and WRT increased muscle strength in LP (D%LRT=57.14%; p=0.004; D%WRT=42.3%; p=0.033). There was an increase in LRT and WRT in the LP when compared to CG (D%=45.59%, p=0.019; D%=43.97%, p=0.026, respectively). IGF-1 was elevated only in LRT (D%=49.72%, p=0.004) from pre- to post-test and when compared to WRT (D%=56.76%, p=0.002) and CG (D%=74.63%, p=0.0001). IGFBP3 levels showed that only WRT increased (D%=26.79%, p=0.044) from pre- to post-test. The IGF-1/IGFBP3 ratio demonstrated that LRT reached intragroup elevation (D%=52.66%, p=0.002) and when compared to WRT (D%=94.11%, p=0.0001) and CG (D%=73.45%, p=0.0001). There was no significant difference in GH. Conclusion: Land resistance training may provide better anabolic effects in elderly women.

RESUMO Introdução: O envelhecimento leva ao declínio de múltiplos sistemas de órgãos associado a alterações hormonais e perda de massa e força muscular. Objetivo: Avaliar os efeitos do treinamento de força no meio terrestre e aquático sobre a força muscular e os níveis séricos basais de GH, IGF-1 e IGFBP3 em mulheres idosas. Métodos: Os indivíduos foram distribuídos em três grupos: treinamento de força no meio terrestre (TFT; n = 10; idade: 66,10 ± 2,77 anos), treinamento de força na água (TFA; n = 10; idade: 67,10 ± 3,54 anos) e grupo controle (GC; n = 10; idade: 68,80 ± 5,41 anos). A força muscular foi avaliada pelo teste de 1-RM nos exercícios supino reto (SR) e leg press (LP). Os níveis séricos de GH, IGF-1 e IGFBP3 foram analisados por quimioluminescência. Resultados: O teste ANOVA com medidas repetidas mostrou aumento da força muscular no SR só no TFT (∆% = 60,2%; p = 0,0001) quando comparado ao GC (∆% = 46,73%, p = 0,0001) e TFA (∆% = 32,49%, p=0,004). TFT e TFA aumentaram a força muscular no LP (∆% TFT = 57,14%; p = 0,004; ∆% TFA = 42,3%; p = 0,033). Houve um aumento no TFT e TFA no LP em comparação com o GC (∆% = 45,59%, p = 0,019; ∆% = 43,97%, p = 0,026, respectivamente). IGF-1 aumentou só no TFT (∆% = 49,72%, p = 0,004) do pré para o pós-teste e quando comparado ao TFA (∆% = 56,76%, p = 0,002) e ao GC (∆% = 74,63%, p = 0,0001). Os níveis de IGFBP3 mostraram aumento apenas no TFA (∆% = 26,79%, p = 0,044) do pré para o pós-teste. A razão IGF-1/IGFBP3 demonstrou que TFT atingiu elevação intragrupo (∆% = 52,66%, p = 0,002) e quando comparado ao TFA (∆% = 94,11%, p = 0,0001) e CG (∆% = 73,45%, p = 0,0001). Não foram verificadas diferenças significativas no GH. Conclusão: O treinamento de força no meio terrestre produziu maior efeito anabólico nas idosas.

RESUMEN Introducción: El envejecimiento lleva al declive de múltiples sistemas de órganos, asociado a cambios hormonales y pérdida de masa y fuerza muscular. Objetivo: Evaluar los efectos del entrenamiento de fuerza en el medio terrestre y acuático sobre la fuerza muscular y los niveles séricos basales de GH, IGF-1 e IGFBP3 en mujeres mayores. Métodos: Los individuos fueron distribuidos en tres grupos: entrenamiento de fuerza en medio terrestre (EFT; n = 10; edad: 66,10 ± 2,77 años), entrenamiento de fuerza en medio acuático (EFA; n = 10; edad: 67,10 ± 3,54 años) y grupo control (GC, n = 10; edad = 68,80 ± 5,41 años). La fuerza muscular se evaluó por la prueba de 1-RM en los ejercicios de press de banca (PB) y prensa de pierna (PP). Los niveles séricos de GH, IGF-1 e IGFBP3 se analizaron por quimioluminiscencia. Resultados: La prueba ANOVA con medidas repetidas mostró aumento de la fuerza muscular en el PB sólo en el EFS (∆% = 60,2%; p = 0,0001) en comparación al GC (∆% = 46,73%, p = 0,0001) y EFA (∆% = 32,49%, p = 0,004). EFS y EFA aumentaron la fuerza muscular en la PP (∆%EFS = 57,14%; p = 0,004; ∆%EFA = 42,3%; p = 0,033). Se observó un aumento en el EFS y EFA en la PP en comparación con el GC (∆% = 45,59%, p = 0,019; ∆% = 43,97%, p = 0,026, respectivamente). IGF-1 aumentó sólo en el EFS (∆% = 49,72%; p = 0,004) del pre para el post-test y en comparación con el EFA (∆% = 56,76%; p = 0,002) y al GC (∆% = 74,63%; p = 0,0001). Los niveles de IGFBP3 mostraron aumento sólo en el EFS (∆% = 26,79%; p = 0,044) del pre para el post-test. La razón IGF-1/IGFBP3 demostró que EFS alcanzó elevación intragrupo (∆% = 52,66%; p = 0,002) y en comparación al EFA (∆% = 94,11%, p = 0,0001) y GC (∆% = 73,45%; p = 0,0001). No se observaron diferencias significativas en el GH. Conclusión: El entrenamiento de fuerza en el medio terrestre produjo un mayor efecto anabólico en las mujeres mayores.