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Table 5 Activity protocols of previous child calibration studies which included treadmill and free-living activities

From: Feasibility of a laboratory-based accelerometer calibration protocol for children with intellectual disabilities

Study Participant age range (years) Treadmill activities Time per treadmill activity (min) Free-living activities Time per free-living activity (min)
Eston et al. [13]a 8–10 Walk 4 km/h 4 Playing catch 4
Walk 6 km/h 4 Hopscotch 4
Run 8 km/h 4 Sitting crayoning 4
Run 10 km/h 4   
Evenson et al. [14]b 6–8 Light   Sedentary  
Walk 2 mph 7 Rest 15
Moderate   Sitting watching DVD 7
Walk 3 mph 7 Sitting colouring books 7
Vigorous   Moderate  
Run 4 mph 7 Stair climb 7
   Dribble basketball 7
   Vigorous  
   Cycle on stationary bike 7
   Jumping jacks 7
McMurray et al. [35]b 8–18 Walk 4 km/h 10 Standing arcade game 10
Walk 5.6 km/h 10 Stretching 10
Run 8 km/h 10 Sweeping 10
   Vacuuming 10
   Shovelling 10
   Stair climb (88 steps/min) 10
   Rope skipping 10
Puyau et al. [15]c 6–16 Light   Sedentary  
Walk 2.5 mph 10 Rest 20
Moderate   Sitting playing Nintendo 20
Walk 3.5 mph (6–7 years) 10 Arts and crafts 20
Walk 4 mph (8–16 years) 10 Free play sitting, e.g. cards, lego, miniature cars 20
Vigorous   Light  
Jog 4.5 mph (6–7 years) 10 Aerobic warm up 10
Jog 5 mph (8–10 years) 10 Moderate  
  Jog 6 mph (11–16 years) 10 Tae Bo martial arts exercises 10
   Free play standing, e.g. hula hoop, throwing ball, jumping jacks 10
   Vigorous  
   Jump rope 3
   Walk—self-selected pace 5
   Skip 3
   Jog—self-selected pace 3
   Soccer 3
Puyau et al. [28]c 7–18 Walk 2 mph 7 Rest 30
Walk 3.5–4 mph 7 Sitting playing handheld Nintendo 20
Jog/run 4.5–7 mph 7 Sitting playing computer 20
   Cleaning (dusting) 10
   Aerobic exercises 12
   Ball toss 10
Vanhelst et al. [23]a 10–16 Light 15 min consecutive Sedentary 15 min consecutive
Walk 1.5 km/h, 3 % gradient   Lying in bed watching TV  
Moderate   Sitting reading  
Walk 3 km/h, 3 % gradient   Sitting playing computer game  
Run 4 km/h, 3 % gradient   Light  
  Standing drawing  
Vigorous   Passing football  
Run 6 km/h, 3 % gradient    
  1. aRespiratory gas exchange was measured using a stationary metabolic system, which restricts movement within a laboratory environment
  2. bRespiratory gas exchange was measured using a portable metabolic system, which allows almost unrestricted movement within a designed indoor or outdoor area
  3. cRespiratory gas exchange was measured using a whole room calorimeter, which allows unrestricted body movement within a confined room