Roberto Martín Benzo1, Nicholas T Kruse, William E Hughes, Darren P Casey, Lucas J Carr. 1. Department of Health and Human Physiology, University of Iowa, Iowa City, Iowa (Mr Benzo, Dr Carr); and Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, Iowa (Drs Kruse, Hughes, Casey).
Abstract
OBJECTIVE: The aim of this study was to compare the effect of 4 hours of sitting interrupted with hourly bouts of standing and/or pedaling versus uninterrupted sitting on alertness and discomfort among sedentary office workers. METHODS:Fifteen middle-aged sedentary workers were randomized to three 4-hour conditions: (1) uninterrupted sitting; (2) sitting interrupted with 10 minutes of standing/hour; and (3) sitting interrupted with 10 minutes of pedaling/hour. Self-reported measures of alertness and discomfort were collected. RESULTS: Uninterrupted sitting significantly increased discomfort (P < 0.001). Discomfort was lower in both the standing (P < 0.001) and pedaling (P < 0.001) conditions than the uninterrupted sitting condition. Short-lived improvements in alertness were observed immediately following several standing (50%) and pedaling (100%) interruptions. CONCLUSION:Prolonged sitting increases discomfort while brief standing and pedaling interruptions attenuate impairments in discomfort among sedentary workers.
RCT Entities:
OBJECTIVE: The aim of this study was to compare the effect of 4 hours of sitting interrupted with hourly bouts of standing and/or pedaling versus uninterrupted sitting on alertness and discomfort among sedentary office workers. METHODS: Fifteen middle-aged sedentary workers were randomized to three 4-hour conditions: (1) uninterrupted sitting; (2) sitting interrupted with 10 minutes of standing/hour; and (3) sitting interrupted with 10 minutes of pedaling/hour. Self-reported measures of alertness and discomfort were collected. RESULTS: Uninterrupted sitting significantly increased discomfort (P < 0.001). Discomfort was lower in both the standing (P < 0.001) and pedaling (P < 0.001) conditions than the uninterrupted sitting condition. Short-lived improvements in alertness were observed immediately following several standing (50%) and pedaling (100%) interruptions. CONCLUSION: Prolonged sitting increases discomfort while brief standing and pedaling interruptions attenuate impairments in discomfort among sedentary workers.
Authors: Francis Q S Dzakpasu; Alison Carver; Christian J Brakenridge; Flavia Cicuttini; Donna M Urquhart; Neville Owen; David W Dunstan Journal: Int J Behav Nutr Phys Act Date: 2021-12-13 Impact factor: 6.457
Authors: Katie R Hosteng; Alison Phillips Reichter; Jacob E Simmering; Lucas J Carr Journal: Int J Environ Res Public Health Date: 2019-07-13 Impact factor: 3.390