The effect of vehicle motion (cab vibration) on accelerometer cut-point determined moderate-to-vigorous physical activity in heavy goods vehicle drivers
Date
2024
Authors
Sayyah, M.
Clemes, S.A.
Maylor, B.D.
Edwardson, C.L.
Sherry, A.P.
Ruettger, K.
Chen, Y.L.
Varela Mato, V.
Guest, A.J.
King, J.A.
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Journal article
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Journal for the Measurement of Physical Behaviour, 2024; 7(1, article no. jmpb.2024-0027):1-10
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Abstract
This study aimed to determine the impact of cab noise when driving Heavy Goods Vehicles (HGV) on cut-point estimated moderate-to-vigorous physical activity (MVPA) from wrist-worn accelerometers. First, we investigated the impact of cab noise on accelerometer output during HGV driving and then on cut-point estimated MVPA in HGV drivers. A GENEActiv accelerometer was located beneath the seat in six HGVs for 8 days. Acceleration recorded during driving lay predominantly (∼94%) within the sedentary range (<40mg). HGV drivers (N = 386, 47.9 ± 9.3 years) wore a wrist-worn GENEActiv and a thigh-worn activPAL simultaneously for 8 days covering workdays and nonworkdays. MVPA recorded by the activPAL excludes seated transport, thus provided the criterion. Wrist accelerometer MVPA was classified using two cut-points approximating 3 metabolic equivalents (MVPA100mg) and 4.3 metabolic equivalents (indicative of brisk walking, MVPABRISK_WALK). Acceleration classified as MVPA100mg or MVPABRISK_WALK during activPAL-determined seated transport was considered erroneous. Across all-days, activPAL MVPA was 15 (interquartile range: 9, 26) min/day. Compared with activPAL, MVPA100mg was 100 min/day higher (95% limits of agreement ±53 min), but MVPABRISK_WALK similar (mean bias = −2 min/day, 95% limits of agreement ±15). On workdays, 23 (interquartile range: 11, 52) min of MVPA100mg and 2 (1, 7) min of MVPABRISK_WALK were erroneous. However, on nonworkdays, only 4 (3, 14) and 0.4 (0, 1) min, respectively, were erroneous. In conclusion, MVPA may be erroneously captured using cut-point analyses of accelerometer data in HGV drivers. However, this was substantially reduced by using an MVPA cut-point indicative of brisk walking, which also approximated activPAL estimated MVPA.
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Copyright 2024 Human Kinetics