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High-intensity interval neuromuscular training promotes exercise behavioral regulation, adherence and weight loss in inactive obese women |
Batrakoulis A, Loules G, Georgakouli K, Tsimeas P, Draganidis D, Chatzinikolaou A, Papanikolaou K, Deli CK, Syrou N, Comoutos N, Theodorakis Y, Jamurtas AZ, Fatouros IG |
European Journal of Sport Science 2020;20(6):783-792 |
clinical trial |
4/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
It is unclear how high-intensity, interval-type nontraditional exercise training programs can be feasible and effective options for inactive obese individuals. This randomized controlled trial investigated the hypothesis that a 10-month high-intensity, group interval-type neuromuscular training program (DoIT) with adjunct portable modalities, performed in a small-group setting, induces improvements in psychological well-being, subjective vitality and exercise behavioral regulations in obese women. Associations between adherence, psychological and physiological indicators were also investigated. Forty-nine previously inactive obese females (36.4 +/- 4.4 yrs) were randomly assigned to three groups (control; N = 21, 10-month training; N = 14, or 5-month training plus 5 month-detraining; N = 14). DoIT was a supervised, progressive, and time-efficient (< 30 min) program that used 10 to 12 functional/neuromotor exercises and prescribed work and rest time intervals (20 to 40 sec) in a circuit fashion (1 to 3 rounds) for 10 months. Questionnaires were used to measure psychological distress, subjective vitality, and behavioral regulations in exercise at pre-, mid-, and post-intervention. The 10-month training reduced psychological distress (72%, p = 0.001), external regulation (75%, p = 0.011) and increased vitality (53%, p = 0.001), introjected regulation (63%, p = 0.001), intrinsic regulation (33%, p = 0.004), and identified regulation (88%, p = 0.001). A moderate to strong positive relationship was found between adherence rate and identified regulation scores (r = 0.59, p = 0.001) and between VO2peak and identified regulation scores (r = 0.59, p = 0.001). A mild dissociation between exercise intensity and perceived exertion was also observed. Our novel findings suggest that a 10-month implementation of a high-intensity interval neuromuscular training program promotes positive psychological adaptations provoking exercise behavioral regulation and adherence while inducing weight loss in previously inactive obese women.
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