Introduction Systemic sclerosis/scleroderma (SSc) is a chronic autoimmune disease with connective tissue, multi-organ, and multisystem involvement. The disease has three main characteristics, namely vasculopathy, fibrosis, and autoimmunity. The effect of high-intensity interval training (HIIT) in aerobic exercise on other rheumatic diseases has been studied, for example in patients with rheumatoid arthritis (RA) and juvenile idiopathic arthritis (JIA). The purpose of this work is to investigate the effectiveness of HIIT of aerobics exercise on improving the inspiratory muscle, quality of life and functional ability for systemic sclerosis subjects. Material and methods The study was conducted on patients with confirmed systemic sclerosis who met the inclusion criteria. The research was carried out for 12 months in the outpatient clinic and gait laboratory of the Department of Physical Medicine and Rehabilitation. Results After HIIT in aerobic exercise, we found significant changes in inspiratory muscle (SNIP values 45.67 [30.92] vs. 54.25 [22.71]), handgrip (13.14 [4.42] vs. 15.63 [4.08]), walking speed (184.70 [26.86] vs. 246.6 [12.30]), metabolic equivalent (3.53 [0.30] vs. 4.21 [1.25]) and Scleroderma-Specific Health Assessment Questionnaire Disability Index for all visual analog scale (VAS) domains except Disability Index. Exercise approaches are characterized by repeated cycles of exercise interrupted by rest. For a range of clinical conditions, HIIT in aerobic exercise is known to remedy blood vessel function. Conclusions Our results suggest that HIIT in aerobic exercise has improved functional ability, respiratory muscle strength, and quality of life in SSc subjects. Training twice a week in a 12-week HIIT program is considered to be safe for this population. We have to consider internal and external factors that influenced the result. A larger sample and further exploration of the feasibility of combined exercise in SSc patients should be the focus for future research.
Introduction: Cardiorespiratory fitness (CRF) and physical activity (PA) in childhood can reduce the risk of cardiovascular diseases in adults. Further analysis related to the relationship between PA and CRFto prevent an inactive lifestyle is neededMethods: An analytic cross-sectional design in adolescents aged 13-15 years old, who had no cardiovascular and metabolic diseases, with light or medium physical activity, no deformity in thelower limbs and posture disorders. Cardiorespiratory fitness was assessed by the indirect method Bruce Protocol in the Faculty of Sport and Health Education’s library, The University of Pendidikan Indonesiaon September-October 2019. Physical activity was measure by the Physical Activity Questionnaire for Adolescent (PAQ-A).Results: Subjects consisted of 82 adolescents (41 boys, 41 girls), aged 13-15 years old with the Body mass index (BMI) was 18.5-29 kg/m2. The mean value of predicted VO2max (Bruce) for boys and girlswere 46.66 ± 8.765 and 40.06 ± 6.210 ml/kg2, while the value of predicted PAQ-A score for boys and girls were 2.54±0.756 and 2.16±0.416. The correlation between PAQ-A and VO2max in boys and girlswere r=0,190, p=0,234 and r=0.420; p=0.006.Conclusion: There was a moderate association between PAQ-A with VO2max in girls.Keywords: Cardiorespiratory fitness, Physical activity questionnaire, VO2max.
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