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1.
Nord J Psychiatry ; 78(4): 319-327, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38421343

RESUMEN

INTRODUCTION: The Hopkins Symptom Checklist-10 (HSCL-10) is a self-report inventory of anxiety and depression symptoms that may assist clinicians in screening for clinical conditions among patients with substance use disorder (SUD). We examined the HSCL-10 as a screening tool for anxiety and depressive disorders within a general population of SUD inpatients. METHODS: We used data from a cohort study of 611 SUD inpatients. Receiver operating characteristic (ROC) analyses were conducted, with and without covariates, to evaluate the potential of the HSCL-10 as a screening tool. This was explored using any anxiety disorder, especially posttraumatic stress disorder (PTSD), and any mood disorder, especially major depressive disorders, as the outcome criteria. Candidate covariates included gender, age, education, polydrug use and treatment center.Results: The HSCL-10 had a moderate ability to identify caseness (i.e. having or not having a clinical diagnosis) according to each outcome criterion, with the area under the ROC curve (AUC) varying from 0.64 to 0.66. Adding relevant covariates markedly enhanced the instrument's ability to identify those who met the criteria for any anxiety disorder (AUC = 0.77), especially PTSD (AUC = 0.82). CONCLUSION: In a real-world clinical setting, the HSCL-10 has fair-to-good clinical utility for identifying SUD inpatients who have comorbid clinical symptoms of anxiety disorders or PTSD, when combined with common background variables. The HSCL-10, a brief self-report screening tool, may serve as an efficient proxy for comprehensive interviews used in research and for clinical anxiety symptom screening among patients with SUD.


Asunto(s)
Trastornos de Ansiedad , Lista de Verificación , Trastornos por Estrés Postraumático , Trastornos Relacionados con Sustancias , Humanos , Trastornos Relacionados con Sustancias/diagnóstico , Trastornos Relacionados con Sustancias/epidemiología , Trastornos Relacionados con Sustancias/psicología , Masculino , Femenino , Adulto , Trastornos de Ansiedad/diagnóstico , Trastornos de Ansiedad/epidemiología , Trastornos de Ansiedad/psicología , Persona de Mediana Edad , Trastornos por Estrés Postraumático/diagnóstico , Trastornos por Estrés Postraumático/epidemiología , Trastornos por Estrés Postraumático/psicología , Comorbilidad , Pacientes Internos/psicología , Trastorno Depresivo Mayor/diagnóstico , Trastorno Depresivo Mayor/epidemiología , Trastorno Depresivo Mayor/psicología , Estudios de Cohortes , Curva ROC , Escalas de Valoración Psiquiátrica/normas , Trastorno Depresivo/diagnóstico , Trastorno Depresivo/epidemiología , Trastorno Depresivo/psicología , Tamizaje Masivo/métodos , Autoinforme
2.
BMC Psychiatry ; 23(1): 152, 2023 03 09.
Artículo en Inglés | MEDLINE | ID: mdl-36894934

RESUMEN

BACKGROUND: The characteristics of substance use disorder (SUD) inpatients with co-occurring psychiatric disorders (COD) have been scantly described in the extant literature. This study investigated psychological, demographic and substance use characteristics in these patients, along with predictors of relapse 3 months post-treatment. METHODS: Prospective data from a cohort of 611 inpatients were analyzed for demographics, motivation, mental distress, SUD diagnosis, psychiatric diagnoses (ICD-10) and relapse rate at 3 months post-treatment (retention rate = 70%). RESULTS: Compared to patients without COD (n = 322), those with COD (n = 289) were younger, had higher mental distress, lower education and higher likelihood of no permanent residence. The relapse rate was also higher in patients with COD (39.8%) relative to patients without COD (26.4%) (OR = 1.85, 95% CI: 1.23-2.78). The relapse rate was particularly high for patients with COD who were diagnosed with cannabis use disorder (53.3%). Multivariate analysis revealed that among patients with COD, relapse was more likely for individuals with a cannabis use disorder (OR = 2.31, 95% CI: 1.34-4.00), and less likely for older ages (OR = 0.97, 95% CI: 0.94-1.00), females (OR = 0.56, 95% CI: 0.33-0.98) and for those with higher intrinsic motivation (OR = 0.58, 95% CI: 0.42-0.81). CONCLUSION: This study showed that among SUD inpatients, those with COD had relatively persistent high levels of mental distress and an increased risk of relapse. Enhanced measures aimed at COD patients' mental health problems during the inpatient stay, along with close and personalized follow-up after discharge from residential SUD treatment may reduce the probability of relapse in this group.


Asunto(s)
Abuso de Marihuana , Trastornos Mentales , Trastornos Relacionados con Sustancias , Femenino , Humanos , Pacientes Internos , Estudios Prospectivos , Trastornos Mentales/complicaciones , Trastornos Mentales/epidemiología , Trastornos Mentales/terapia , Trastornos Relacionados con Sustancias/complicaciones , Trastornos Relacionados con Sustancias/epidemiología , Trastornos Relacionados con Sustancias/terapia , Enfermedad Crónica , Recurrencia , Comorbilidad
3.
Psychiatry Res ; 317: 114848, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-36116184

RESUMEN

We examined the prevalence of suicidal ideation (SI) among inpatients with substance use disorders (SUD) and investigated the association between SI and demographic (age, education, gender) and clinical factors (SUD, psychiatric disorders, anxiety/depression symptoms, substance use onset age). We collected medical record data including types of ICD-10 SUD and psychiatric diagnoses (i.e. mood: F30-39; anxiety: F40-48; personality: F60-F60.9; F61.0; F62; ADHD: F90-F90.9) and patient-reported data from 563 patients admitted to inpatient SUD treatment. Lifetime SI was measured by one question from the Addiction Severity Index (ASI). Gender differences in SI rates were examined using Chi-square tests. To determine variables that were uniquely associated with SI we conducted hierarchical regression analyses. The overall prevalence of SI was 50%, and it occurred more frequently among females (61.9%) than males (45.4%). SI was associated with female gender, younger age of substance use onset, mood and personality disorders, and higher anxiety/depression symptoms. Male gender accounted for the significant association between younger age of onset and SI. Diagnostic information on mood and personality disorders, and screening of patient-reported anxiety/depression symptoms at treatment intake may be useful for clinicians in identifying and providing personalized treatment for SUD inpatients who are at increased risk of SI.


Asunto(s)
Trastornos Relacionados con Sustancias , Ideación Suicida , Humanos , Masculino , Femenino , Pacientes Internos , Prevalencia , Factores Sexuales , Trastornos Relacionados con Sustancias/psicología , Factores de Riesgo
4.
Nutrients ; 14(11)2022 May 31.
Artículo en Inglés | MEDLINE | ID: mdl-35684109

RESUMEN

Hypovitaminosis D is prevalent worldwide, and especially in South-Asia. According to the Institute of Medicine (IOM), 25(OH)D levels below 30 nmol/L are defined as vitamin D deficiency (VDD) and levels between 30−50 nmol/L as insufficiency (VDI). Besides its role in calcium homeostasis, it has been postulated that vitamin D is involved in metabolic syndrome. Given the scarcity of data on vitamin D status in Nepal, we aimed to examine the prevalence of VDD and VDI, as well as the determinants and association with metabolic parameters (lipids, HbA1c), in a cohort of women in rural Nepal. Altogether, 733 women 48.5 ± 11.7 years of age were included. VDD and VDI were observed in 6.3 and 42.4% of the participants, respectively, and the prevalence increased by age. Women reporting intake of milk and eggs > 2 times weekly had higher 25(OH)D levels than those reporting intake < 2 times weekly. Women with vitamin D levels < 50 nmol/L displayed higher levels of cholesterol, LDL-cholesterol, triglycerides, and HbA1c. Additionally, a regression analysis showed a significant association between hypovitaminosis D, dyslipidemia, and HbA1c elevation. In conclusion, VDI was prevalent and increased with age. Milk and egg intake > 2 times weekly seemed to decrease the risk of VDI. Moreover, hypovitaminosis D was associated with an adverse metabolic profile.


Asunto(s)
Raquitismo , Deficiencia de Vitamina D , Femenino , Hemoglobina Glucada/análisis , Humanos , Metaboloma , Nepal/epidemiología , Prevalencia , Vitamina D/análisis , Deficiencia de Vitamina D/epidemiología , Vitaminas
5.
Bone Rep ; 14: 101095, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34095362

RESUMEN

Patients with gastroesophageal reflux disease (GERD) are routinely treated with proton pump inhibitors (PPIs), despite many reports of increased fracture risk associated with PPI use. Notably, the skeletal properties in patients with GERD prior to PPI therapy have not been addressed. We hypothesized that PPI-naïve GERD patients have bone impairment, and that short-term treatment with PPI has minimal skeletal effects. To test this, 17 (12 men/5 women) GERD patients age 32-73 years, not previously exposed to PPI, and 17 age- and sex-matched controls were enrolled from September 2010 to December 2012. Bone mineral density (BMD) at lumbar spine, femoral neck, total hip, and trabecular bone score (TBS) at the lumbar spine, a marker of bone microarchitecture, were measured by dual X-ray absorptiometry. Markers of bone turnover and calcium homeostasis, and gastric hormones were analyzed. The same parameters were measured after three months of treatment with the PPI pantoprazole. The GERD patients displayed a significantly lower TBS at baseline than controls (1.31 ± 0.11 vs. 1.43 ± 0.07, p = 0.0006). Total hip and femoral neck BMD were lower in patients compared to controls, however, not significantly (p = 0.09 and 0.12, respectively). CTX was non-significantly higher in GERD patients at baseline (p = 0.11). After three months, changes in BMD, TBS and CTX did not differ between the groups. In conclusion, this is the first report demonstrating compromised bone quality and inferior BMD in PPI-naïve GERD patients. Treatment with pantoprazole did not influence bone parameters, indicating that short-term use with this PPI is safe for the skeleton.

6.
PLoS One ; 14(9): e0222712, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31557195

RESUMEN

BACKGROUND: Vitamin A and D deficiency is prevalent in pregnant women worldwide. Both vitamins are involved in fetal skeletal development. A positive association between maternal vitamin D levels and offspring bone mineral density (BMD) at adulthood has been observed. The impact of maternal vitamin A status in pregnancy on offspring peak bone mass remains unclear. METHOD AND FINDINGS: Forty-one mother-child pairs were recruited from a population-based prospective cohort study in Trondheim, Norway, where pregnant women were followed from gestational week 17. Their term-born infants were followed from birth (1986-88). Regression analyses were performed for vitamin A (retinol), 25-hydroxyvitamin D [25(OH)D] and 1,25-dihydroxyvitamin D [1,25(OH)2D] in maternal serum (gestational weeks 17, 33, 37) and cord blood. Offspring BMD and spine trabecular bone score (TBS), a measure of bone quality, were analyzed by dual x-ray absorptiometry at 26 years. Average levels during pregnancy of retinol, 25(OH)D and 1,25(OH)2D were 1.66 (0.32) µmol/L, 59.0 (20.6) nmol/L, and 251.3 (62.4) pmol/L, respectively. 1,25(OH)2D levels were similar in those with 25(OH)D levels <30 and >75 nmol/L. After adjustment for maternal age, BMI, smoking, and education, and offspring birth weight, maternal serum retinol was positively associated with offspring spine BMD [mean change 30.8 (CI 7.6, 54.0) mg/cm2 per 0.2 µmol/L retinol], and with offspring TBS, although non-significant (p = 0.08). No associations were found between maternal 25(OH)D and 1,25(OH)2D levels and offspring bone parameters. Vitamin levels in cord blood were not associated with offspring BMD or TBS. CONCLUSIONS: This is the first study to show an association between maternal vitamin A status and offspring peak bone mass. Our findings may imply increase future risk for osteoporotic fracture in offspring of mothers with suboptimal vitamin A level. No associations were observed between 25(OH)D and 1,25(OH)2D and offspring BMD.


Asunto(s)
Densidad Ósea/fisiología , Fracturas Osteoporóticas/epidemiología , Complicaciones del Embarazo/sangre , Efectos Tardíos de la Exposición Prenatal/epidemiología , Deficiencia de Vitamina A/sangre , Deficiencia de Vitamina D/sangre , Absorciometría de Fotón , Adulto , Femenino , Estudios de Seguimiento , Humanos , Masculino , Noruega , Fracturas Osteoporóticas/diagnóstico por imagen , Fracturas Osteoporóticas/fisiopatología , Embarazo , Efectos Tardíos de la Exposición Prenatal/diagnóstico por imagen , Efectos Tardíos de la Exposición Prenatal/fisiopatología , Estudios Prospectivos , Medición de Riesgo , Factores de Riesgo , Vitamina A/sangre , Vitamina D/análogos & derivados , Vitamina D/sangre
7.
J Clin Endocrinol Metab ; 103(12): 4437-4446, 2018 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-30099519

RESUMEN

Context and Objectives: Low birthweight (LBW) has emerged as a risk factor of metabolic syndrome (MetS). Whether adults with very low birthweight (VLBW) born preterm are at higher risk than individuals who were term-born small for gestational age (tb-SGA) is not established. We assessed metabolic outcomes, including relation with skeletal parameters, in these two LBW categories. Design, Participants, and Outcomes: This follow-up cohort study included 189 individuals (females 51%), aged 25 to 28 years; 55 were preterm VLBW (≤1500 g), 59 were tb-SGA (<10th percentile), and 75 were controls (≥10th percentile). Outcomes were indices of MetS: blood pressure (BP), waist circumference, fasting glucose, lipid profile, and association between calculated MetS score and bone mineral density (BMD) and trabecular bone score (TBS), a measure of bone quality. Results: Compared with controls, individuals with VLBW displayed higher systolic [mean (SD), 126 (13.3) vs 119 (12.3) mm Hg; 95% CI, 1.27 to 11.48 mm Hg] and diastolic [71.9 (7.6) vs 68.6 (7.1) mm Hg; 95% CI, 0.3 to 6.2 mm Hg] BP, higher glycated hemoglobin, higher C-peptide, increased insulin resistance (Homeostatic Model Assessment 2), and lower high-density lipoprotein cholesterol [1.34 (0.3) vs 1.50 (0.4); 95% CI, 0.32 to 0.01]. Substantial differences were mainly seen between control females and females with VLBW. The adults who were tb-SGA had higher waist circumference and higher total and low-density lipoprotein cholesterol compared with controls. In males, MetS score correlated positively with BMD and inversely with TBS. Conclusions: The LBW groups and preferentially females in the VLBW group displayed a less favorable metabolic profile than did controls. The inverse association between MetS score and bone quality suggests enhanced future fracture risk.


Asunto(s)
Recien Nacido Prematuro/fisiología , Recién Nacido Pequeño para la Edad Gestacional/fisiología , Recién Nacido de muy Bajo Peso/fisiología , Síndrome Metabólico/epidemiología , Efectos Tardíos de la Exposición Prenatal/epidemiología , Adulto , Presión Sanguínea/fisiología , Densidad Ósea/fisiología , Hueso Esponjoso/fisiología , Femenino , Estudios de Seguimiento , Humanos , Recién Nacido , Masculino , Síndrome Metabólico/metabolismo , Embarazo , Efectos Tardíos de la Exposición Prenatal/metabolismo , Factores Sexuales , Circunferencia de la Cintura/fisiología
8.
J Clin Endocrinol Metab ; 102(7): 2491-2500, 2017 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-28453635

RESUMEN

Context and Objectives: Peak bone mass (PBM) is regarded as the most important determinant of osteoporosis. Growing evidence suggests a role of intrauterine programming in skeletal development. We examined PBM and trabecular bone score (TBS) in adults born preterm with very low birth weight (VLBW) or small for gestational age (SGA) at term compared with term-born controls. Design, Setting, Participants, and Outcomes: This follow-up cohort study included 186 men and women (25 to 28 years); 52 preterm VLBW (≤1500 g), 59 term-born SGA (<10th percentile), and 75 controls (>10th percentile). Main outcome was bone mineral density (BMD) by dual x-ray absorptiometry. Secondary outcomes were bone mineral content (BMC), TBS, and serum bone markers. Results: VLBW adults had lower BMC and BMD vs controls, also when adjusted for height, weight, and potential confounders, with the following BMD Z-score differences: femoral neck, 0.6 standard deviation (SD) (P = 0.003); total hip, 0.4 SD (P = 0.01); whole body, 0.5 SD (P = 0.007); and lumbar spine, 0.3 SD (P = 0.213). The SGA group displayed lower spine BMC and whole-body BMD Z-scores, but not after adjustment. Adjusted odds ratios for osteopenia/osteoporosis were 2.4 and 2.0 in VLBW and SGA adults, respectively. TBS did not differ between groups, but it was lower in men than in women. Serum Dickkopf-1 was higher in VLBW subjects vs controls; however, it was not significant after adjustment for multiple comparisons. Conclusions: Both low-birth-weight groups displayed lower PBM and higher frequency of osteopenia/osteoporosis, implying increased future fracture risk. The most pronounced bone deficit was seen in VLBW adults.


Asunto(s)
Densidad Ósea/fisiología , Desarrollo Óseo/fisiología , Matriz Ósea/fisiología , Recién Nacido Pequeño para la Edad Gestacional/crecimiento & desarrollo , Recién Nacido de muy Bajo Peso , Nacimiento a Término , Absorciometría de Fotón/métodos , Adulto , Factores de Edad , Estudios de Cohortes , Intervalos de Confianza , Femenino , Fracturas Espontáneas/epidemiología , Fracturas Espontáneas/fisiopatología , Humanos , Recién Nacido , Modelos Logísticos , Masculino , Oportunidad Relativa , Osteoporosis/epidemiología , Osteoporosis/fisiopatología , Factores Sexuales
9.
J Endocrinol ; 230(2): 251-62, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-27325243

RESUMEN

Epidemiological studies suggest an increased fracture risk in patients taking proton pump inhibitors (PPIs) for long term. The underlying mechanism, however, has been disputed. By binding to the gastric proton pump, PPIs inhibit gastric acid secretion. We have previously shown that proton pump (H(+)/K(+)ATPase beta subunit) KO mice exhibit reduced bone mineral density (BMD) and inferior bone strength compared with WT mice. Patients using PPIs as well as these KO mice exhibit gastric hypoacidity, and subsequently increased serum concentrations of the hormone gastrin. In this study, we wanted to examine whether inhibition of the gastrin/CCK2 receptor influences bone quality in these mice. KO and WT mice were given either the gastrin/CCK2 receptor antagonist netazepide dissolved in polyethylene glycol (PEG) or only PEG for 1year. We found significantly lower bone mineral content and BMD, as well as inferior bone microarchitecture in KO mice compared with WT. Biomechanical properties by three-point bending test also proved inferior in KO mice. KO mice receiving netazepide exhibited significantly higher cortical thickness, cortical area fraction, trabecular thickness and trabecular BMD by micro-CT compared with the control group. Three-point bending test also showed higher Young's modulus of elasticity in the netazepide KO group compared with control mice. In conclusion, we observed that the gastrin receptor antagonist netazepide slightly improved bone quality in this mouse model, suggesting that hypergastrinemia may contribute to deteriorated bone quality during acid inhibition.


Asunto(s)
Benzodiazepinonas/uso terapéutico , Huesos/efectos de los fármacos , ATPasa Intercambiadora de Hidrógeno-Potásio/deficiencia , Osteoporosis/prevención & control , Compuestos de Fenilurea/uso terapéutico , Receptor de Colecistoquinina B/antagonistas & inhibidores , Absorciometría de Fotón , Proteínas Adaptadoras Transductoras de Señales , Animales , Benzodiazepinonas/farmacología , Densidad Ósea/efectos de los fármacos , Huesos/diagnóstico por imagen , Evaluación Preclínica de Medicamentos , Femenino , Gastrinas/sangre , Glicoproteínas/sangre , ATPasa Intercambiadora de Hidrógeno-Potásio/genética , Péptidos y Proteínas de Señalización Intercelular , Leptina/sangre , Ratones Endogámicos BALB C , Ratones Noqueados , Osteocalcina/sangre , Osteoporosis/inducido químicamente , Compuestos de Fenilurea/farmacología , Inhibidores de la Bomba de Protones/efectos adversos , Ligando RANK/sangre , Estómago/efectos de los fármacos , Microtomografía por Rayos X
10.
J Cell Biochem ; 117(9): 2089-96, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-26869358

RESUMEN

Epidemiological studies suggest increased fracture risk in patients using proton pump inhibitors (PPIs). We have previously shown that the H(+) /K(+) ATPase beta subunit knockout (KO) mouse, which is a model of PPI-use, have lower bone mineral density (BMD) and impaired bone quality compared to wild type (WT) mice. Like PPI users, these KO mice display elevated gastric pH and hypergastrinemia, which in turn stimulates gastric histamine release. Previous studies have suggested a negative effect of histamine on bone, thus, we wanted to study whether a histamine 1 receptor (H1R) antagonist could improve bone quality in KO mice. Female KO and WT mice aged 8 weeks received either an H1R antagonist (cetirizine) or polyethylene glycol (PEG) for 6 months. At the end of the study, KO mice displayed elevated plasma histamine levels compared to WT. As demonstrated previously, the KO mice also exhibited lower whole body BMD, reduced mechanical bone strength, and impaired bone quality assessed by µCT. No significant differences, however, were found between the KO groups receiving cetirizine or PEG for any of the measured bone parameters. In vitro gene expression analyses of histamine receptors revealed the presence of H1R and H2R both in osteoblasts and osteoclasts, and H3R in late stage osteoblasts. In conclusion, administration of the H1R antagonist cetirizine in a concentration of 3 mg/kg did not rescue the osteoporotic phenotype in H(+) /K(+) ATPase beta subunit KO mice. It can, however, not be ruled out that histamine may influence bone via other receptors. J. Cell. Biochem. 117: 2089-2096, 2016. © 2016 Wiley Periodicals, Inc.


Asunto(s)
Cetirizina/farmacología , ATPasa Intercambiadora de Hidrógeno-Potásio/deficiencia , Antagonistas de los Receptores Histamínicos/farmacología , Histamina/metabolismo , Osteoporosis/tratamiento farmacológico , Receptores Histamínicos/metabolismo , Animales , Femenino , Ratones , Ratones Endogámicos BALB C , Ratones Noqueados , Osteoporosis/genética , Osteoporosis/metabolismo , Osteoporosis/patología , Receptores Histamínicos/genética
11.
J Strength Cond Res ; 28(10): 2935-45, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24736773

RESUMEN

-Exercise guidelines highlight maximizing bone mass early in life as a strategy to prevent osteoporosis. Which intervention is most effective for this purpose remains unclear. This study investigated the musculoskeletal effects of high acceleration, maximal strength training (MST), in young adult women. Thirty healthy women (22 ± 2 years) were randomly assigned to a training group (TG) and a control group (CG). The TG completed 12 weeks of squat MST, executed at 85-90% of maximal strength 1 repetition maximum (1RM), emphasizing progressive loading and high acceleration in the concentric phase. The CG was encouraged to follow the American College of Sports Medicine's exercise guidelines for skeletal health. Measurements included bone mineral density (BMD) and body composition by dual-energy X-ray absorptiometry, dynamic and isometric rate of force development (RFD), and squat 1RM. Serum levels of type 1 collagen amino-terminal propeptide (P1NP), type 1 collagen C breakdown products (CTX), and sclerostin were analyzed by immunoassays. In the TG, lumbar spine and total hip BMD increased by 2.2 and 1.0%, whereas serum P1NP increased by 26.2%. Dynamic RFD and 1RM improved by 81.7 and 97.7%, and isometric RFD improved by 38% at 100 milliseconds. These improvements were significantly greater than those observed in the CG. Within the CG, dynamic RFD and 1RM increased by 27.2 and 12.9% while no other significant changes occurred. These findings suggest that squat MST may serve as a simple, time-efficient strategy to optimize peak bone mass in early adulthood.


Asunto(s)
Densidad Ósea , Músculo Esquelético/fisiología , Acondicionamiento Físico Humano/fisiología , Entrenamiento de Fuerza/métodos , Absorciometría de Fotón , Proteínas Adaptadoras Transductoras de Señales , Composición Corporal , Proteínas Morfogenéticas Óseas/sangre , Colágeno Tipo I/metabolismo , Femenino , Marcadores Genéticos , Humanos , Fuerza Muscular , Fragmentos de Péptidos/sangre , Acondicionamiento Físico Humano/métodos , Procolágeno/sangre , Adulto Joven
12.
J Strength Cond Res ; 27(10): 2879-86, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23287836

RESUMEN

Current guidelines recommend weight-bearing activities, preferably strength training for improving skeletal health in patients with osteoporosis. What type of strength training that is most beneficial for these patients is not established. Maximal strength training (MST) is known to improve 1-repetition maximum (1RM) and rate of force development (RFD), which are considered as important covariables for skeletal health. Squat exercise MST might serve as an effective intervention for patients with low bone mass. We hypothesized that 12 weeks of squat exercise MST would improve 1RM and RFD in postmenopausal women with osteoporosis or osteopenia and that these changes would coincide with improved bone mineral density (BMD) and bone mineral content (BMC), and serum markers of bone metabolism. The participants were randomized to a training group (TG, n = 10) or control group (CG, n = 11). The TG underwent 12 weeks of supervised squat exercise MST, 3 times a week, with emphasis on rapid initiation of the concentric part of the movement. The CG was encouraged to follow current exercise guidelines. Measurements included 1RM, RFD, BMD, BMC, and serum bone metabolism markers; type 1 collagen amino-terminal propeptide (P1NP) and type 1 collagen C breakdown products (CTX). At posttest, 8 participants remained in each group for statistical analyses. The TG improved the 1RM and RFD by 154 and 52%, respectively. Lumbar spine and femoral neck BMC increased by 2.9 and 4.9%. The ratio of serum P1NP/CTX tended to increase (p = 0.09), indicating stimulation of bone formation. In conclusion, squat exercise MST improved 1RM, RFD, and skeletal properties in postmenopausal women with osteopenia or osteoporosis. The MST can be implemented as a simple and effective training method for patients with reduced bone mass.


Asunto(s)
Enfermedades Óseas Metabólicas/rehabilitación , Osteoporosis Posmenopáusica/rehabilitación , Entrenamiento de Fuerza , Absorciometría de Fotón , Anciano , Biomarcadores/sangre , Densidad Ósea , Colágeno/sangre , Ensayo de Inmunoadsorción Enzimática , Prueba de Esfuerzo , Femenino , Humanos , Persona de Mediana Edad , Consumo de Oxígeno/fisiología , Fragmentos de Péptidos/sangre , Procolágeno/sangre , Radioinmunoensayo , Resultado del Tratamiento
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