Table 1.
Medline search strategy
| 1 | self report$.tw. |
| 2 | questionnaire$.tw. |
| 3 | diary.tw. |
| 4 | log$.tw. |
| 5 | survey.tw. |
| 6 | interview$.tw. |
| 7 | recall.tw. |
| 8 | physical activity assessment.tw. |
| 9 | Minnesota Leisure Time Physical Activity Questionnaire.tw. |
| 10 | Framingham Leisure Time Physical Activity Questionnaire$.tw. |
| 11 | Global Physical Activity Questionnaire$.tw. |
| 12 | (International Physical Activity Questionnaire or IPAQ$).tw. |
| 13 | (Godin Leisure Time Exercise Questionnaire or Godin-Shephard Leisure Time Exercise Questionnaire$).tw. |
| 14 | seven day physical activity recall$.tw. |
| 15 | (Bouchard three day physical activity record or bouchard 3 day physical activity record$).tw. |
| 16 | Baecke Questionnaire of Habitual Physical Activity.tw. |
| 17 | Modified Baecke Questionnaire for Older Adults$.tw. |
| 18 | Modifiable Activity Questionnaire$.tw. |
| 19 | Aerobics Center Longitudinal Study Physical Activity Questionnaire.tw. |
| 20 | CARDIA Physical Activity Questionnaire$.tw. |
| 21 | (Health Insurance Plan of New York Activity Questionnaire or HIP activity questionnaire).tw. |
| 22 | (physical activity questionnaire of the kuopio ischemic heart disease study or physical activity questionnaire of the KIHD study).tw. |
| 23 | Paffenbarger Physical Activity Questionnaire$.tw. |
| 24 | Lipid Research Clinics Questionnaire.tw. |
| 25 | Stanford Physical Activity Questionnaire$.tw. |
| 26 | Tecumseh Occupational Physical Activity Questionnaire$.tw. |
| 27 | Physical Activity Scale for the Elderly.tw. |
| 28 | Canada Fitness Survey$.tw. |
| 29 | (The MONICA Optional Study of Physical Activity or MOSPA$).tw. |
| 30 | Framingham Physical Activity Index.tw. |
| 31 | YALE Physical Activity Survey$.tw. |
| 32 | Zutphen Physical Activity Questionnaire$.tw. |
| 33 | or/1–32 |
| 34 | (doubly labeled water or doubly labelled water).tw. |
| 35 | calorimet$.tw. |
| 36 | heart rate monitor$.tw. |
| 37 | acceleromet$.tw. |
| 38 | pedomet$.tw. |
| 39 | activity monitor$.tw. |
| 40 | CSA monitor.tw. |
| 41 | or/34–40 |
| 42 | direct$ observ$.tw. |
| 43 | ((direct$ or physical or objective) adj2 measur$).tw. |
| 44 | ((reference or gold or criter$) adj standard$).tw. |
| 45 | (reliability or validity).tw. |
| 46 | or/42–45 |
| 47 | physical activity.tw. |
| 48 | exercise.tw. |
| 49 | walk$.tw. |
| 50 | physical fitness.tw. |
| 51 | or/47–50 |
| 52 | 46 and 51 |
| 53 | 41 or 52 |
| 54 | 33 and 53 |
| 55 | adult$.tw. |
| 56 | exp adult/ |
| 57 | or/55–56 |
| 58 | 54 and 57 |