Cardiorespiratory fitness and accelerometer-determined physical activity following one year of free-living high-intensity interval training and moderate-intensity continuous training: a randomized trial

Jung, M. E.; Locke, S. R.; Bourne, J. E.; Beauchamp, M. R.; Lee, T.; Singer, J.; MacPherson, M.; Barry, J.; Jones, C.; Little, J. P.

doi:10.1186/s12966-020-00933-8

International Journal of Behavioral Nutrition and Physical Activity

Table 2 Estimated change relative to baseline (with associated 95% confidence intervals and p-values)

From: Cardiorespiratory fitness and accelerometer-determined physical activity following one year of free-living high-intensity interval training and moderate-intensity continuous training: a randomized trial

		HIIT	P-value	MICT	P-value	Between group differences	P-value
VO₂ absolute (L/min)	Month 6	0.15 (0.06, 0.24)	0.002	0.12 (0.05, 0.20)	0.001	0.03 (−0.09, 0.14)	0.66
	Month 12	0.16 (0.08, 0.23)	< 0.001	0.10 (0.02, 0.17)	0.014	0.06 (−0.04, 0.17)	0.25
	Average of the 12 months	0.15 (0.08, 0.23)	< 0.001	0.11 (0.05, 0.18)	0.001	0.04 (−0.06, 0.14)	0.38
VO₂ relative (mL/kg/min)	Month 6	1.79 (0.68, 2.90)	0.002	1.79 (0.75, 2.83)	0.001	0.00 (−1.52, 1.52)	1.00
	Month 12	1.94 (0.88, 2.99)	< 0.001	1.52 (0.50, 2.54)	0.004	0.42 (−1.05, 1.88)	0.57
	Average of the 12 months	1.86 (0.87, 2.85)	< 0.001	1.66 (0.69, 2.62)	0.001	0.21 (−1.17, 1.59)	0.76
Watts peak	Month 6	9.51 (3.83, 15.19)	0.001	8.12 (3.86, 12.38)	< 0.001	1.39 (−5.71, 8.48)	0.70
	Month 12	11.26 (6.53, 15.99)	< 0.001	4.97 (0.25, 9.70)	0.04	6.28 (−0.40, 12.97)	0.07
	Average of the 12 months	10.38 (5.75, 15.02)	< 0.001	6.55 (2.37, 10.73)	0.003	3.83 (−2.40, 10.07)	0.22
MVPA 10+	Month 3	49.39 (30.15, 68.64)	< 0.001	84.03 (53.00, 115.07)	< 0.001	−34.64 (−71.16, 1.88)	0.06
	Month 6	29.36 (9.24, 49.48)	0.004	91.66 (63.91, 119.40)	< 0.001	−62.30 (−96.57, −28.03)	< 0.001
	Month 9	39.80 (16.02, 63.57)	0.001	54.45 (25.92, 82.98)	< 0.001	−14.65 (−51.79, 22.49)	0.44
	Month 12	24.17 (−7.49, 55.83)	0.13	44.26 (19.16, 69.37)	< 0.001	−20.09 (−60.50, 20.31)	0.33
	Average of the 12 months	35.68 (17.22, 54.14)	< 0.001	68.60 (48.66, 88.54)	< 0.001	−32.92 (− 60.09, − 5.75)	0.02
Vigorous PA	Month 3	6.24 (2.09, 18.58)	0.001	2.09 (0.80, 5.42)	0.13	2.99 (0.70, 12.73)	0.14
	Month 6	3.60 (1.21, 10.72)	0.021	3.47 (1.24, 9.72)	0.018	1.04 (0.23, 4.66)	0.96
	Month 9	6.70 (2.19, 20.50)	< 0.001	2.88 (1.05, 7.89)	0.040	2.33 (0.52, 10.51)	0.27
	Month 12	3.35 (1.06, 10.62)	0.040	2.02 (0.69, 5.89)	0.20	1.66 (0.34, 8.01)	0.53
	Average of the 12 months	4.74 (1.93, 11.67)	< 0.001	2.55 (1.16, 5.58)	0.020	1.86 (0.56, 6.15)	0.307
Moderate PA	Month 3	58.54 (34.77, 82.32)	< 0.001	79.52 (39.63, 119.40)	< 0.001	−20.97 (−67.40, 25.46)	0.37
	Month 6	17.13 (−6.67, 40.92)	0.16	93.71 (60.45, 126.97)	< 0.001	−76.58 (− 117.48, −35.69)	< 0.001
	Month 9	19.00 (−6.50, 44.50)	0.14	67.61 (38.51, 96.71)	< 0.001	−48.61 (−87.30, −9.92)	0.014
	Month 12	−7.70 (−41.10, 25.70)	0.65	49.13 (13.38, 84.88)	0.007	−56.83 (− 105.76, − 7.91)	0.023
	Average of the 12 months	21.74 (2.05, 41.44)	0.031	72.49 (48.66, 96.32)	< 0.001	−50.75 (−81.67, − 19.83)	0.001
Moderate-to-vigorous PA	Month 3	68.47 (45.32, 91.63)	< 0.001	86.36 (43.94, 128.78)	< 0.001	−17.88 (−66.21, 30.44)	0.47
	Month 6	24.39 (0.45, 48.33)	0.046	98.98 (65.49, 132.46)	< 0.001	−74.59 (− 115.75, − 33.43)	< 0.001
	Month 9	26.31 (0.03, 52.58)	0.050	72.79 (41.86, 103.71)	< 0.001	−46.48 (−87.06, −5.90)	0.025
	Month 12	−2.24 (−35.82, 31.33)	0.90	61.61 (24.24, 98.99)	0.001	−63.86 (− 114.10, − 13.62)	0.013
	Average of the 12 months	29.23 (9.68, 48.78)	0.004	79.93 (55.44, 104.42)	< 0.001	−50.70 (−82.04, − 19.37)	0.002
Propotion of MVPA prescription achieved	Month 3	0.39 (0.25, 0.52)	< 0.001	0.35 (0.21, 0.48)	< 0.001	0.04 (−0.15, 0.23)	0.69
	Month 6	0.22 (0.08, 0.35)	0.002	0.39 (0.28, 0.50)	< 0.001	−0.18 (− 0.35, − 0.00)	0.05
	Month 9	0.27 (0.09, 0.45)	0.003	0.25 (0.13, 0.36)	< 0.001	0.02 (−0.19, 0.23)	0.83
	Month 12	0.13 (−0.06, 0.32)	0.19	0.19 (0.08, 0.29)	< 0.001	−0.06 (− 0.28, 0.16)	0.61
	Average of the 12 months	0.25 (0.11, 0.39)	< 0.001	0.29 (0.21, 0.38)	< 0.001	−0.04 (− 0.20, 0.12)	0.59
Weight (kg)	Month 6	−0.26 (−1.10, 0.58)	0.54	−1.28 (−3.32, 0.77)	0.22	1.02 (−1.19, 3.23)	0.36
	Month 12	0.00 (−1.32, 1.31)	1.00	−1.48 (−3.92, 0.97)	0.23	1.48 (−1.30, 4.25)	0.29
	Average of the 12 months	−0.13 (−1.09, 0.82)	0.78	−1.38 (−3.57, 0.81)	0.21	1.25 (−1.14, 3.64)	0.30
Waist circumference (cm)	Month 6	−1.89 (−3.14, −0.65)	0.003	−3.62 (−5.84, − 1.39)	0.002	1.72 (− 0.82, 4.27)	0.18
	Month 12	−2.62 (−4.24, − 1.01)	0.002	−4.95 (−7.41, − 2.49)	< 0.001	2.32 (− 0.62, 5.26)	0.12
	Average of the 12 months	− 2.26 (− 3.55, − 0.97)	< 0.001	−4.28 (−6.54, − 2.02)	< 0.001	2.02 (− 0.58, 4.63)	0.13
Body fat (%)	Month 6	− 0.98 (− 1.55, − 0.41)	0.001	−0.93 (− 1.80, − 0.07)	0.04	−0.05 (− 1.09, 0.99)	0.93
	Month 12	−1.68 (− 2.47, − 0.90)	< 0.001	−1.90 (− 2.88, − 0.92)	< 0.001	0.22 (− 1.04, 1.47)	0.73
	Average of the 12 months	− 1.33 (− 1.94, − 0.73)	< 0.001	− 1.42 (− 2.27, − 0.56)	0.002	0.08 (− 0.96, 1.13)	0.87
Task self-efficacy	Month 6	12.50 (6.60, 18.40)	< 0.001	7.50 (3.07, 11.93)	0.001	5.00 (−2.38, 12.38)	0.18
Task self-efficacy	Month 12	10.00 (2.87, 17.13)	0.007	5.00 (−2.81, 12.81)	0.21	5.00 (−5.58, 15.58)	0.35
Self-regulatory efficacy	Month 6	1.43 (− 4.62, 7.47)	0.64	3.57 (−1.45, 8.59)	0.16	−2.14 (− 10.00, 5.72)	0.59
Self-regulatory efficacy	Month 12	−1.43 (− 12.39, 9.53)	0.80	2.86 (− 4.08, 9.80)	0.42	−4.29 (− 17.26, 8.69)	0.51

All values are estimated change (95% CI)
Number of participants in HIIT: 3-months (n = 43); 6-months (n = 42); 9-months (n = 37); 12-months (n = 35)
Number of participants in MICT: 3-months (n = 49); 6-months (n = 44); 9-months (n = 39); 12 months (n = 37)

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