Physical activity and quality of life in severely obese individuals seeking bariatric surgery or lifestyle intervention

Table 2 Comparison of time spent performing activities of varying intensity and reported health-related quality of life between severely obese participants seeking bariatric surgery or lifestyle intervention

	Bariatric Surgery (N = 34)	Lifestyle Intervention (N = 34)	P
Activity intensity (METs)
Sedentary (min/d)	641.0 ± 117.7	638.4 ± 133.4	0.62
Light (min/d)	136.4 ± 76.1	145.5 ± 72.5	0.59
Moderate-to-vigorous (min/d)	36.4 ± 26.2	40.2 ± 31.3	0.59
Total physical activity (min/d)	172.8 ± 94.3	185.7 ± 94.1	0.58
Health-Related Quality of Life (SF-36)
Physical function	42.4 ± 10.9	49.0 ± 6.8	0.004
Role-physical	46.7 ± 11.1	49.0 ± 10.7	0.39
Bodily pain	50.6 ± 7.6	52.8 ± 7.1	0.22
General health	41.8 ± 9.6	42.3 ± 8.6	0.83
Physical component summary	43.9 ± 10.1	48.9 ± 7.0	0.02
Vitality	46.2 ± 10.0	47.0 ± 10.1	0.12
Social functioning	46.6 ± 8.6	47.6 ± 10.3	0.73
Role-emotional	49.1 ± 10.1	48.2 ± 12.1	0.52
Mental health	49.5 ± 9.0	48.1 ± 10.0	0.54
Mental component summary	49.1 ± 9.3	47.2 ± 11.3	0.44

Note. P values are based on independent t-tests. Values are presented as mean ± standard deviation. METs = metabolic equivalents. Activity intensity (METs) thresholds = sedentary (<1.5 METs), light (1.5-2.9 METs), moderate-to-vigorous (≥3 METS), and total physical activity (≥1.5 METs). SF-36 scores are standardized to a population normal distribution with a mean of 50 and standard deviation of 10 to provide context for reported degree of health-related quality of life impairment [12].

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