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<p>This study used compositional data techniques that address the interdependence of 24-h movement behaviors (sleep, sedentary behavior [SB], light-intensity physical activity [LPA], moderate-to-vigorous intensity physical activity [MVPA]) to examine: (1) how patients undergoing metabolic bariatric surgery (MBS) allocate time among these behaviors before MBS, and (2) whether overall time-use composition and modeled reallocation patterns relate to early weight loss after MBS. Participants wore an accelerometer 24 h/day for 10 days before MBS to measure time in sleep, SB, LPA, and MVPA. Isotemporal substitution models estimated differences in 6-month post-MBS percentage total weight loss (%TWL) associated with reallocations of these pre-surgery movement behaviors. Forty-five participants provided valid data. Pre-MBS time-use composition was associated with %TWL (23.8 ± 5.1%; <i>F</i> = 2.66, <i>p</i> = 0.047). Reallocating 15–60 SB or LPA minutes/day to MVPA was estimated to relate to 0.9–3.5% greater %TWL. Reallocating 15–30 MVPA minutes/day to SB or LPA was estimated to relate to 1.4–5.0% less %TWL (all comparisons <i>p</i> &lt; 0.05). Other reallocations were non-significant. In conclusion, modeled shifts in time from SB or LPA to MVPA and vice versa were associated with estimated increases or decreases in early post-surgical weight loss, respectively. Experimental research is needed to clarify causal relationships and inform interventions to improve MBS outcomes.</p>

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Preoperative 24-hour movement behaviors and early weight loss after metabolic bariatric surgery: a compositional analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月12日

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  • Leah M. Schumacher,
  • Yin Wu,
  • J. Graham Thomas,
  • Aurélie Baillot,
  • Pavlos K. Papasavas,
  • Sivamainthan Vithiananthan,
  • Daniel B. Jones,
  • Jennifer Webster,
  • Dale S. Bond

摘要

This study used compositional data techniques that address the interdependence of 24-h movement behaviors (sleep, sedentary behavior [SB], light-intensity physical activity [LPA], moderate-to-vigorous intensity physical activity [MVPA]) to examine: (1) how patients undergoing metabolic bariatric surgery (MBS) allocate time among these behaviors before MBS, and (2) whether overall time-use composition and modeled reallocation patterns relate to early weight loss after MBS. Participants wore an accelerometer 24 h/day for 10 days before MBS to measure time in sleep, SB, LPA, and MVPA. Isotemporal substitution models estimated differences in 6-month post-MBS percentage total weight loss (%TWL) associated with reallocations of these pre-surgery movement behaviors. Forty-five participants provided valid data. Pre-MBS time-use composition was associated with %TWL (23.8 ± 5.1%; F = 2.66, p = 0.047). Reallocating 15–60 SB or LPA minutes/day to MVPA was estimated to relate to 0.9–3.5% greater %TWL. Reallocating 15–30 MVPA minutes/day to SB or LPA was estimated to relate to 1.4–5.0% less %TWL (all comparisons p < 0.05). Other reallocations were non-significant. In conclusion, modeled shifts in time from SB or LPA to MVPA and vice versa were associated with estimated increases or decreases in early post-surgical weight loss, respectively. Experimental research is needed to clarify causal relationships and inform interventions to improve MBS outcomes.