Adherence, physical activity and exercise engagement
| Baseline to 12 weeks | 12–24 weeks | 24 weeks–1 year | |||||||
| Tai Chi | Group walking | Usual care | Tai Chi | Group walking | Usual care | Tai Chi | Group walking | Usual care | |
| Adherence | |||||||||
| Class time, min·week−1 | 105.3±33.2 | 82.5±43.4 | 40.6±16.3 | 33.1±17.2 | |||||
| Home practice time, min·week−1 | 80.2±55.2 | 73.3±48.3 | 45.7±48.5 | 40.5±39.8 | |||||
| Physical activity logs, min·week−1 | |||||||||
| Total | 414.9±365.6 | 249.6±203.0 | 402.9±295.5 | 368.3±386.5 | 240.6±200.3 | 382.2±372.9 | 351.8±418.0 | 319.8±312.2 | 376.0±329.2 |
| Walking | 125.3±141.6 | 126.2±139.5 | 173.5±191.9 | 115.3±159.6 | 117.0±126.6 | 183.7±310.8 | 107.0±131.4 | 136.0±180.4 | 160.1±208.5 |
| Stretching exercises | 17.6±22.4 | 21.4±22.9 | 27.9±38.9 | 15.2±24.1 | 16.2±16.7 | 27.2±35.3 | 11.9±15.7 | 26.5±27.5 | 29.9±41.0 |
| Cardiovascular exercise# | 9.3±19.0 | 2.7±5.3 | 37.2±51.1 | 4.9±11.9 | 1.4±2.6 | 35.0±66.2 | 10.3±25.3 | 7.0±15.0 | 26.1±38.8 |
| Strength training¶ | 20.9±37.0 | 10.0±15.2 | 37.5±60.0 | 18.0±28.5 | 10.0±18.6 | 28.1±40.5 | 19.8±33.0 | 19.8±26.7 | 35.0±57.4 |
| Playing sports+ | 17.0±62.6 | 0.2±0.6 | 4.3±23.0 | 11.0±32.8 | 0 | 1.3±5.0 | 5.4±13.3 | 3.2±10.3 | 1.0±4.7 |
| Heavy housework§ | 33.2±69.7 | 9.2±20.2 | 22.4±38.6 | 57.8±172.1 | 5.6±9.7 | 19.4±30.6 | 65.9±231.2 | 27.3±29.8 | 22.6±57.5 |
| Light houseworkƒ | 132.6±174.3 | 69.8±63.9 | 88.2±14.2 | 95.0±121.3 | 70.9±73.7 | 78.6±93.7 | 96.3±123.9 | 92.6±108.4 | 90.7±150.4 |
| Composite exercise engagement, min·week−1 | 538.7±366.9 | 396.3±220.7 | 402.9±295.5 | 404.7±397.7 | 306.3±193.2 | 382.1±373.0 | 322.2±419.5 | 319.8±312.2 | 376.0±329.2 |
Data are presented as mean±sd. #: e.g. jogging, running, cycling or rowing; ¶: e.g. general conditioning, chair exercises, or using weights or resistance bands; +: e.g. golf, tennis, squash, basketball, football or swimming; §: e.g. washing windows, cleaning gutters, home repairs, mowing lawn, raking leaves or shovelling snow; ƒ: e.g. sweeping, vacuuming, cleaning, watering plants, weeding or planting.