Effects of standing and light-intensity activity on ambulatory blood pressure

Zachary S. Zeigler, Sarah L. Mullane, Noe C. Crespo, Matthew Buman, Glenn Gaesser

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

Purpose This study aimed to compare ambulatory blood pressure (ABP) response to accumulated standing (STAND), cycling (CYCLE), and walking (WALK) to a sitting-only (SIT) day in adults. Methods Nine overweight or obese (body mass index, 28.7 ± 2.7 kg·m-2) adults (30 ± 15 yr) participated in this randomized crossover full-factorial study. Four conditions (WALK, STAND, CYCLE, and SIT) were randomly performed 1 wk apart. WALK, STAND, and CYCLE conditions consisted of progressively increasing activity time to accumulate 2.5 h during an 8-h simulated workday. WALK (1.0 mph) and STAND (0.0 mph) were completed on a treadmill placed underneath a standing-height desk. During CYCLE, participants pedaled on a Monark cycle ergometer at a cadence and energy expenditure equivalent to WALK. Participants remained seated during the SIT condition. Participants wore an ABP cuff from 0800 h until 2200 h on all conditions. Linear mixed models were used to test condition differences in systolic (SBP) and diastolic (DBP) blood pressure. Chi-square was used to detect frequency difference of BP load. Results There was a whole-day (during and after work hours) SBP and DBP treatment effect (P <0.01). Systolic blood pressure during STAND (132 ± 17 mm Hg), WALK (133 ± 17 mm Hg), and CYCLE (130 ± 16 mm Hg) were lower compared with that during SIT (137 ± 17 mm Hg) (all P <0.01). CYCLE was lower than STAND (P = 0.04) and WALK (P <0.01). For DBP, only CYCLE (69 ± 12 mm Hg) was lower than SIT (71 ± 13 mm Hg; P <0.01). Compared with SIT, WALK, STAND, and CYCLE reduced SBP load by 4%, 4%, and 13%, respectively (all P <0.01). Conclusions Compared with sitting, accumulating 2.5 h of light-intensity physical activity or standing during an 8-h workday may reduce ABP during and after work hours.

Original languageEnglish (US)
Pages (from-to)175-181
Number of pages7
JournalMedicine and Science in Sports and Exercise
Volume48
Issue number2
DOIs
StatePublished - Feb 1 2016

Keywords

  • blood pressure load
  • fractionized exercise
  • light intensity
  • postexercise hypotension

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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