The Effect of Changes in Physical Activity on Sedentary Behavior

Results from a Randomized Lifestyle Intervention Trial

Juned Siddique*, Peter John De Chavez, Lynette L. Craft, Patty Freedson, Bonnie Spring

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Purpose. To investigate whether changes in physical activity (PA) have an impact on sedentary behavior (SB) during a lifestyle intervention. Design. Study design was a randomized trial. Setting/Subjects. Participants (n = 204) were individuals with low PA and high sedentary leisure screen time from the Chicago area. Intervention. Participants were randomized to either increase PA (iPA) or decrease sedentary leisure (dSED). The intervention consisted of decision support, coaching, and financial incentives. For iPA participants, the goal was at least 60 min/d of self-reported moderate-tovigorous-intensity PA (MVPA). For dSED participants the goal was less than 90 min/d of sedentary leisure screen time. Measures. Daily accelerometer-based measures of SB and bout-corrected MVPA were obtained. Analysis. Linear mixed-effects models were fit to estimate the effect of the intervention on MVPA and total SB and to estimate the effect of daily changes in MVPA on daily SB. Results. The iPA participants increased their bout-corrected MVPA by 14 min/d (p <.001) and decreased their total SB by 18 min/d (p <.001). The dSED participants did not significantly change their PA or their total SB. On days when participants exercised, each 10-minute bout of MVPA was associated with a 6-minute decrease in SB on the same day (p <.001). Conclusion. In an intervention study designed to increase MVPA, participants who increase their time spent exercising will obtain much of this time by reducing their SB.

Original languageEnglish (US)
Pages (from-to)287-295
Number of pages9
JournalAmerican Journal of Health Promotion
Volume31
Issue number4
DOIs
StatePublished - Jul 1 2017

Fingerprint

Life Style
Leisure Activities
leisure time
Financial Support
coaching
Motivation
incentive

Keywords

  • Accelerometry, Compensation, Exercise, MVPA, Prevention Research. Manuscript format: research
  • Health focus: fitness/physical activity
  • Outcome measure: behavioral
  • Research purpose: modeling/relationship testing
  • Setting: local community
  • Strategy: skill building/behavior change
  • Study design: randomized trial
  • Target population age: adults
  • Target population circumstances: geographic location

ASJC Scopus subject areas

  • Health(social science)
  • Public Health, Environmental and Occupational Health

Cite this

@article{72175fc058a84521a6f2f659bd010384,
title = "The Effect of Changes in Physical Activity on Sedentary Behavior: Results from a Randomized Lifestyle Intervention Trial",
abstract = "Purpose. To investigate whether changes in physical activity (PA) have an impact on sedentary behavior (SB) during a lifestyle intervention. Design. Study design was a randomized trial. Setting/Subjects. Participants (n = 204) were individuals with low PA and high sedentary leisure screen time from the Chicago area. Intervention. Participants were randomized to either increase PA (iPA) or decrease sedentary leisure (dSED). The intervention consisted of decision support, coaching, and financial incentives. For iPA participants, the goal was at least 60 min/d of self-reported moderate-tovigorous-intensity PA (MVPA). For dSED participants the goal was less than 90 min/d of sedentary leisure screen time. Measures. Daily accelerometer-based measures of SB and bout-corrected MVPA were obtained. Analysis. Linear mixed-effects models were fit to estimate the effect of the intervention on MVPA and total SB and to estimate the effect of daily changes in MVPA on daily SB. Results. The iPA participants increased their bout-corrected MVPA by 14 min/d (p <.001) and decreased their total SB by 18 min/d (p <.001). The dSED participants did not significantly change their PA or their total SB. On days when participants exercised, each 10-minute bout of MVPA was associated with a 6-minute decrease in SB on the same day (p <.001). Conclusion. In an intervention study designed to increase MVPA, participants who increase their time spent exercising will obtain much of this time by reducing their SB.",
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The Effect of Changes in Physical Activity on Sedentary Behavior : Results from a Randomized Lifestyle Intervention Trial. / Siddique, Juned; De Chavez, Peter John; Craft, Lynette L.; Freedson, Patty; Spring, Bonnie.

In: American Journal of Health Promotion, Vol. 31, No. 4, 01.07.2017, p. 287-295.

Research output: Contribution to journalArticle

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T1 - The Effect of Changes in Physical Activity on Sedentary Behavior

T2 - Results from a Randomized Lifestyle Intervention Trial

AU - Siddique, Juned

AU - De Chavez, Peter John

AU - Craft, Lynette L.

AU - Freedson, Patty

AU - Spring, Bonnie

PY - 2017/7/1

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N2 - Purpose. To investigate whether changes in physical activity (PA) have an impact on sedentary behavior (SB) during a lifestyle intervention. Design. Study design was a randomized trial. Setting/Subjects. Participants (n = 204) were individuals with low PA and high sedentary leisure screen time from the Chicago area. Intervention. Participants were randomized to either increase PA (iPA) or decrease sedentary leisure (dSED). The intervention consisted of decision support, coaching, and financial incentives. For iPA participants, the goal was at least 60 min/d of self-reported moderate-tovigorous-intensity PA (MVPA). For dSED participants the goal was less than 90 min/d of sedentary leisure screen time. Measures. Daily accelerometer-based measures of SB and bout-corrected MVPA were obtained. Analysis. Linear mixed-effects models were fit to estimate the effect of the intervention on MVPA and total SB and to estimate the effect of daily changes in MVPA on daily SB. Results. The iPA participants increased their bout-corrected MVPA by 14 min/d (p <.001) and decreased their total SB by 18 min/d (p <.001). The dSED participants did not significantly change their PA or their total SB. On days when participants exercised, each 10-minute bout of MVPA was associated with a 6-minute decrease in SB on the same day (p <.001). Conclusion. In an intervention study designed to increase MVPA, participants who increase their time spent exercising will obtain much of this time by reducing their SB.

AB - Purpose. To investigate whether changes in physical activity (PA) have an impact on sedentary behavior (SB) during a lifestyle intervention. Design. Study design was a randomized trial. Setting/Subjects. Participants (n = 204) were individuals with low PA and high sedentary leisure screen time from the Chicago area. Intervention. Participants were randomized to either increase PA (iPA) or decrease sedentary leisure (dSED). The intervention consisted of decision support, coaching, and financial incentives. For iPA participants, the goal was at least 60 min/d of self-reported moderate-tovigorous-intensity PA (MVPA). For dSED participants the goal was less than 90 min/d of sedentary leisure screen time. Measures. Daily accelerometer-based measures of SB and bout-corrected MVPA were obtained. Analysis. Linear mixed-effects models were fit to estimate the effect of the intervention on MVPA and total SB and to estimate the effect of daily changes in MVPA on daily SB. Results. The iPA participants increased their bout-corrected MVPA by 14 min/d (p <.001) and decreased their total SB by 18 min/d (p <.001). The dSED participants did not significantly change their PA or their total SB. On days when participants exercised, each 10-minute bout of MVPA was associated with a 6-minute decrease in SB on the same day (p <.001). Conclusion. In an intervention study designed to increase MVPA, participants who increase their time spent exercising will obtain much of this time by reducing their SB.

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KW - Strategy: skill building/behavior change

KW - Study design: randomized trial

KW - Target population age: adults

KW - Target population circumstances: geographic location

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