RESUMEN
PURPOSE: Many people experience aging-related losses in different physical domains, which leads to a condition often called physical frailty (PF). The aim of this study was to analyse the effects of two different, 28-weeks, class chair-exercise protocols on salivary steroid hormones (SH), PF, and functional disabilities (FD) in frail older women. METHODS: A sample of older frail individuals (n = 60, 817.84 years) participated in the study and were divided into three groups: chair elastic-band muscle strength exercises (CSE), n = 20), chair-multimodal exercise (CME, n = 21) and a control non-exercise group (CGne, n = 19). Both exercise programs consisted of 45 min of supervised chair-based exercise group classes, carried out 3 times/week. CME participants performed a progressive training using walking, mobility and body weight resistance exercises. The CSE participants exercised using an elastic-band system of progressive exercises. Both CSE and CME followed a circuit training protocol. The controls did not change their usual lifestyle. The indicators of PF, FD and SH concentrations were analyzed before and after the intervention. RESULTS: Both exercise programs diminished the PF status showing significant time and time versus treatment interactions (p < .01). An increase in the CME group, between baseline and 14-weeks, and in the CSE group, after 28 weeks, for Testosterone concentrations was observed (p < .01). Dehydroepiandrosterone (DHEA) increased after 28-weeks in the CME group and decreased in the CGne after the same period (p < .05). Both exercise programs decreased the negative scores of several FD domains, specially fear of falling that showed significant effects with time (p < .01), and time vs intervention (p < .05). CONCLUSION: Both chair-exercise based programs were effective in stimulating positive changes in physical health and in steroid hormone responses, especially in DHEA. The control group did show a negative trend towards an increased PF status and decreased levels of SH. It is crucial for public health to identify the main factors associated with Functional Disability and Physical Frailty that underlie the development of new methods for complementary therapies, such as the use of low doses of hormonal supplementation combined with long-term exercise interventions.
Asunto(s)
Personas con Discapacidad/rehabilitación , Terapia por Ejercicio/métodos , Anciano Frágil , Fragilidad/terapia , Saliva/metabolismo , Anciano , Anciano de 80 o más Años , Deshidroepiandrosterona/metabolismo , Ejercicio Físico/fisiología , Femenino , Humanos , Fuerza Muscular/fisiología , Entrenamiento de Fuerza , Testosterona/metabolismoRESUMEN
BACKGROUND: Rheumatoid arthritis (RA) is characterized by pain, functional disability, poor quality of life (QoL), high socioeconomic impact, and annual costs of over $56 billion in the United States. Acupuncture (AC) is widely in use; however, studies show severe methodological shortcomings, did not consider the functional diagnosis for the allocation of acupoints and their results showed no differences between verum and control groups. OBJECTIVE: The authors aimed to objectively assess the safety and efficacy of AC treatments for RA. METHODS: 105 RA patients with a functional diagnosis of a "Pivot syndrome" or "Turning Point syndrome" were randomly assigned to (1) verum-AC (verum acupoints), (2) control-AC (sham acupoints-points outside of the conduits/meridians and of the extra-conduits), or (3) waiting list (each group n = 35). AC groups experienced the exact same number, depth, and stimulation of needles. Assessments took place before and 5 min after AC with follow-ups over 4 weeks. RESULTS: (1) Verum-AC significantly improved self-reported pain (Z = -5.099, p < 0.001) and pressure algometry (Z = -5.086, p < 0.001); hand grip strength (Z = -5.086, p < 0.001) and arm strength (Z = -5.086, p < 0.001); health status improved significantly (p < 0.001, Z = -4.895); QoL improved significantly in 7/8 survey domains; and number of swollen joints (Z = -2.862, p = 0.004) and tender joints (Z = -3.986, p < 0.001) significantly decreased. (2) Control-AC showed no significant changes, except in self-reported pain improvement. (3) Waiting list group showed an overall worsening. CONCLUSION: This is the first double-blind controlled study on AC in RA of the hand that objectively and specifically assesses positive effects supporting its integration in rheumatology. Acupoint allocation according to Chinese Medicine functional diagnoses is extremely relevant to assess AC effectiveness in a patient group primarily defined by a "western" medicine diagnosis. Based on clear allocation criteria for acupoints, the authors minimized the possible bias of unspecific and suggestive effects on the control group, showed the specific effects of the points chosen, improved efficacy, and identified an evidence base for AC.