Comparative effectiveness of Yoga and Pilates intervention on respiratory function of patients with breast cancer / Efectividad de la intervención de Yoga vs Pilates en la función respiratoria de pacientes con cáncer de mama

Objective:Most modern breast cancer treatments are shown to be effective in terms of survival but lead to side effects such as dysfunction of the upperlimb, lymphedema, pain syndrome, plexitis, ardiotoxicity, fatigue, and pulmonary complications. Applied radiotherapy enhances the number of sideсardiotoxicity, fatigue, and pulmonary complications. Applied radiotherapy enhances the number of sideeffects that patients with breast cancer experience over a long period. The aim of this study was to compare effectiveness of Hatha Yoga and Pilatesinterventions on respiratory function in patients with breast cancer.Methods:95 women completed the interventions and were included in the final analysis. The participants, staged I-II, were randomly assigned to 2groups. Group A (n = 48, 57.53 ± 1.92 years) received Hatha Yoga intervention and group B (n = 47, 58.00 ± 1.27 years) received Pilates intervention.Both programs were conducted for 12 weeks, with three 60-min sessions per week. Spirometry was used to measure pre- and post-interventionfunctional capacity of the respiratory system.Results:Significant differences (p<0.05) were found in Vital Capacity, Forced Vital Capacity, Peak Expiratory Flow, Maximum Expiratory Flow25,Expiratory Reserve Volume and Maximal Voluntary Ventilation in Hatha Yoga group compared with Pilates group. There was no significant differencebetween both groups in Force Expiratory Volume and Maximum Expiratory Flow50 (p>0,05) Conclusions: Hatha Yoga and Pilates interventions are both effective in respiratory function, but Hatha Yoga turns out more beneficial.(AU)

Objetivo: La mayoría de los tratamientos modernos contra el cáncer de mama han demostrado ser efectivos en términos de supervivencia, pero provocanefectos secundarios como disfunción del miembro superior, linfedema, síndrome de dolor, plexitis, cardiotoxicidad, fatiga y complicaciones pulmonares.La radioterapia aplicada aumenta la cantidad de efectos secundarios que experimentan los pacientes con cáncer de mama durante un períodoprolongado. El objetivo de este estudio fue comparar la efectividad de las intervenciones de Hatha Yoga y Pilates sobre la función respiratoria enpacientes con cáncer de mama.Métodos: 95 mujeres completaron las intervenciones y fueron incluidas en el análisis final. Los participantes, estadios I-II, fueron asignadosaleatoriamente a 2 grupos. El grupo A (n = 48, 57.53 ± 1.92 años) recibió intervención de Hatha Yoga y el grupo B (n = 47, 58.00 ± 1.27 años) recibióintervención de Pilates. Ambos programas se realizaron durante 12 semanas, con tres sesiones de 60 min por semana. La espirometría se utilizó paramedir la capacidad funcional del sistema respiratorio antes y después de la intervención.Resultados: Se encontraron diferencias significativas (p<0.05) en Capacidad Vital, Capacidad Vital Forzada, Flujo Espiratorio Pico, Flujo EspiratorioMáximo25, Volumen de Reserva Espiratorio y Ventilación Voluntaria Máxima en el grupo de Hatha Yoga comparado con el grupo de Pilates. No hubodiferencia significativa entre ambos grupos en Volumen Espiratorio Forzado y Flujo Espiratorio Máximo50 (p>0.05).Conclusiones: Las intervenciones de Hatha Yoga y Pilates son efectivas en la función respiratoria, pero Hatha Yoga resulta más beneficiosa.(AU)

Creatinine is a biochemical marker for assessing how untrained people adapt to fitness training loads.

BACKGROUND: To study the peculiarities of changes in creatinine concentration in blood serum of untrained men during the prolonged usage of training loads different in volume and intensity, and to determine the value of this biochemical marker for the assessment of adaptive body changes during fitness training. METHODS: We examined 50 untrained men aged 18-20 years who had no contraindications for practicing fitness. Taking into account the aim of the research, we divided these people into two groups: group A and group B. The research participants used training load regimes different in volume and intensity: representatives of group Aused low intensity training load regime (Ra = 0.53) and representatives of group B used high intensity training load regime (Ra = 0.72). To assess the adaptive body changes in the examined contingent, we used the anthropometry method (circumference body size) and bioimpedansometry (body composition indicators). We also determined the features of adaptation-compensatory body reactions to different training loads by means of biochemical control of creatinine concentration in blood serum. RESULTS: The obtained results showed a significant increase in basal level of creatinine concentration in blood serum (by 17.6%) of group B representatives fixed after 3 months of practicing fitness in high intensity training load regime (R a  = 0.72). This group representative also revealed the most pronounced manifestation of adaptive body changes confirmed by the results of the maximal muscle strength growth (1RM) and circumference body size, which was almost 2.5 times higher than the results of group A representatives for the same period of time. The parameters indicating the load volume in a set (Wn) were almost 62.0 % higher in group A representatives in comparison with group B during all stages of control. Nonetheless, the highest creatinine concentration in blood serum (by 11.1 % (p < 0.05) was fixed in group A representatives in response to training load after 3 months of practicing. This fact testifies to the important role of the creatine phosphokinase mechanism of energy supply of muscular activity in the conditions of high volume and low intensity training load regime (R a  = 0.53). CONCLUSION: The analysis of the results obtained during a series of experimental studies indicates the need and feasibility of using the indicator of basal level of creatinine concentration in blood during fitness training, especially in the conditions of high intensity and low volume training load regime (R a  = 0.72), as an informative marker for assessing the process of long-term adaptation.