Introduction: This study aims to analyze the effect of two dance-focused and choreographic fitness classes on Health-Related Quality of Life (HRQoL) in sedentary worker women. Methods: 65 sedentary middle-aged worker women (38 ± 7.3 years old) completed a 16-week intervention randomly assigned to: (1) dance fitness group based on Zumba Fitness classes (DF group, n = 25)], (2) dance fitness + functional strength training group (DFFT group, n = 20), and (3) control group (n = 20). HRQoL was assessed by the 36-Item Short-Form Health-Survey (SF-36), which evaluates 8 dimensions of health [General Health (GH), Physical Functioning (PF), Social Functioning (SF), Physical Role (PR), Emotional Role (ER), Bodily Pain (BP), Vitality (V), and Mental Health (MH)] scored from 0 (worst) to 100 (best health status). Results: The control group statistically differed from both exercise groups in PF and PR, and from the DF group in SF and MH showing a lower score. No statistical differences were observed between exercise groups post-intervention, except in V. DF group showed increases in GH, PF, SF, V, PR, and MH post-intervention. Conclusions: A 16-week dance fitness intervention based on Zumba Fitness classes generates notable improvements in a wide range of HRQoL dimensions in sedentary middle-aged worker women, especially in V, PR and MH dimensions.
Objective: To investigate the effects of a short exercise intervention based on the use of a Zumba Fitness® programme on the quality of life (QoL) in inactive adult workers. Design: Non-experimental pre-test/post-test study involving one experimental group of inactive university workers. Setting: Riobamba in the Andean region of central Ecuador. Methods: A total of 60 inactive adults working at a university (age: 39 ± 1.0 years; 80% women, who used to perform < 150 min of moderate-vigorous physical activity per week) completed a 5-week Zumba Fitness® exercise intervention (three classes per week, 60 minutes per class; outside of work hours). QoL was assessed using the 36-Item Short Form Health Survey (SF-36) administered at baseline, post-intervention and 2 months after the intervention. Data were analysed using a per-protocol analysis. Results: The 5-week intervention improved six out of eight subscales of QoL, including general health (baseline: 63.6±2.51; post-intervention: 68.0±2.5; p = .007), physical role (baseline: 82.1±3.8; post-intervention: 90.6±3.3; p = .029), emotional role (baseline: 71.3±5.0; post-intervention: 88.3±3.9; p = .001), social functioning (baseline: 76.9±2.6; post-intervention: 83.9 ± 2.6; p = .010), vitality (baseline: 60.4±2.8; post-intervention: 69.8±2.4; p < .001), mental health (baseline: 72.4±2.5; post-intervention: 80.4±2.3; p < .001) and the health transition perception item (baseline: 53.9±3.5; post-intervention: 63.6±3.1; p = .001). No statistical differences were found between post-intervention and 2-month follow-up; however, the majority of subscales which improved post-intervention (general health, emotional role, social functioning, vitality and mental health) were maintained at 2-month follow-up showing differences ( p < .05) compared to baseline. Conclusion: A 5-week exercise intervention based on Zumba Fitness® programme could improve QoL in inactive adult workers and most improvements could be maintained at 2 months post-intervention.
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