Method for Activity Sleep Harmonization (MASH): a novel method for harmonizing data from two wearable devices to estimate 24-h sleep–wake cycles

Table 3 Pre-harmonization and post MASH harmonization time-use estimates (N = 8560) days

Time-use behavior^a	Pre-harmonization, minutes Median (IQR)	MASH harmonization, minutes Median (IQR)
Sedentary behavior	438 (344, 547)	419 (329, 512)
Low light intensity physical activity (LLPA)	277 (219, 337)	274 (216, 333)
High light intensity physical activity (HLPA)	137 (100, 181)	136 (99, 181)
Moderate to vigorous intensity physical activity (MVPA)	46 (24, 78)	45 (24, 78)
Sleep^b	440 (378, 497)	444 (383, 502)

MASH method for activity sleep harmonization
^aEvenson vector magnitude (VM) cut point values were used to classify minutes as sedentary behavior (< 76 VMct·min⁻¹), low light (76 to < 903 VMct·min⁻¹) intensity (LLPA), high light (903 to < 2075 VMct·min⁻¹) intensity (HLPA), and MVPA (≥ 2075 VMct·min⁻¹)
^bPre-harmonization included 8024 days due to missing data

ISSN: 2731-4391