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Work-related factors predict changes in physical activity among nurses participating in a web-based worksite intervention: a randomized controlled trial
Brunet J, Black M, Tulloch HE, Pipe AL, Reid RD, Reed JL
BMC Nursing 2021 Nov 9;20(224):Epub
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: Yes; Between-group comparisons: No; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

BACKGROUND: Despite the numerous benefits associated with physical activity (PA), most nurses are not active enough and few interventions have been developed to promote PA among nurses. A secondary analysis of raw data from a single-centre, three-arm parallel-group randomized controlled trial was conducted to assess whether work-related characteristics and general mood states predict changes in total weekly moderate-to-vigorous intensity PA (MVPA) and average daily step-count among nurses participating in a 6-week web-based worksite intervention. METHODS: Seventy nurses (mean age 46.1 +/- 11.2 years) were randomized to an individual-, friend-, or team-based PA challenge. Participants completed questionnaires pre- and post-intervention assessing work-related characteristics (ie, shift schedule and length, number of hours worked per week, work role) and general mood states (ie, tension, depression, anger, confusion, fatigue, vigour). Participants received a PA monitor to wear before and during the 6-week PA challenge, which was used to assess total weekly MVPA minutes and average daily step-count. Data were analyzed descriptively and using multilevel modeling for repeated measures. RESULTS: Change in total weekly MVPA minutes, but not change in average daily step-count, was predicted by shift schedule (rotating versus fixed) by time (estimate -17.43, SE 6.18, p = 0.006), and work role (clinical-only versus other) by time (estimate 18.98, SE 6.51, p = 0.005). General mood states did not predict change in MVPA or change in average daily step-count. CONCLUSIONS: Given that nurses who work rotating shifts and perform clinical work showed smaller improvements in MVPA, it may be necessary to consider work-related factors/barriers (eg, time constraints, fatigue) and collaborate with nurses when designing and implementing MVPA interventions in the workplace. TRIAL REGISTRATION: ClinicalTrials.gov NCT04524572. August 24, 2020. This trial was registered retrospectively. This study adheres to the CONSORT 2010 statement guidelines.

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