Table 2.

Mean and median hip-worn accelerometer results for the vertical axis and vector magnitude by activity; WHI OPACH Calibration Study, 2013.

		Vertical axis in counts/15 s				Vector magnitude in counts/15 s
Physical activity in order of visit	N	Normal filter		Low frequency extension filter		Normal filter		Low frequency extension filter
Mean (SD)	Median (IQR)	Mean (SD)	Median (IQR)	Mean (SD)	Median (IQR)	Mean (SD)	Median (IQR)
Watch DVD	200	0.8 (1.9)	0.0 (0.0, 0.7)	1.3 (2.5)	0.1 (0.0, 1.5)	5.8 (8.2)	2.7 (0.0, 9.2)	7.3 (9.5)	4.1 (0.3, 11.4)
Wash and dry dishes	200	7.2 (12.9)	2.6 (0.2, 8.3)	12.1 (17.5)	5.9 (1.9, 15.0)	60.5 (50.0)	48.6 (25.2, 81.7)	85.7 (58.6)	75.0 (42.2, 112.8)
Laundry while standing	200	21.2 (33.2)	9.1 (3.4, 23.9)	34.2 (42.0)	17.9 (9.0, 41.8)	161.2 (91.5)	135.5 (95.6, 222.0)	206.0 (100.4)	181.3 (132.4, 273.8)
400 meter walk	195	427.3 (178.1)	429.3 (300.7, 540.3)	466.2 (172.0)	464.0 (339.9, 573.8)	654.5 (220.9)	636.8 (518.3, 799.4)	720.5 (215.4)	708.1 (587.5, 851.9)
Assemble puzzle	199	6.1 (14.2)	0.7 (0.0, 3.9)	10.3 (20.1)	2.2 (0.3, 8.6)	30.6 (32.7)	18.8 (9.0, 37.9)	46.3 (40.9)	33.1 (17.5, 57.6)
Mopping	199	82.4 (105.7)	50.5 (19.4, 114.8)	112.0 (111.3)	82.1 (41.9, 154.6)	405.3 (188.6)	365.9 (277.3, 503.4)	465.8 (186.6)	430.0 (343.8, 567.1)
Treadmill (1.5 mph)	174	140.3 (118.7)	111.7 (60.7, 174.6)	190.8 (117.6)	171.1 (115.1, 230.3)	351.0 (203.6)	303.9 (224.7, 419.8)	428.6 (196.6)	382.6 (308.5, 494.1)
Treadmill (2.0 mph)	56	255.2 (166.7)	220.2 (159.1, 311.6)	297.6 (154.0)	264.8 (218.4, 346.7)	450.2 (246.6)	392.2 (299.6, 529.7)	519.3 (235.7)	467.6 (384.4, 591.5)
Treadmill (2.5 mph)	91	416.2 (135.7)	419.0 (315.8, 512.2)	457.7 (129.1)	460.6 (370.3, 550.7)	617.3 (161.8)	613.8 (506.3, 708.0)	686.5 (158.4)	687.2 (577.3, 770.5)

IQR: interquartile range; mph: miles per hour; SD: standard deviation.

Accelerometer data are averaged for each woman and then averaged for the sample.