Table 2

Minimum required reporting sheet for standardized and transparent data sharing

DescriptionReporting
Target population
Sampling methodRandom, convenient, and so on
Distribution of sex♂=n/♀=n
Body heightMean±SD and range (cm)
BMIMean±SD and range (kg/m²)
Skin toneDistribution of Fitzpatrick scale
Sample sizeNumber of subjects
Criterion measure
Chest strap or ECG (RR intervals)Model and brand; chest strap: agreement with respect to bpm
PlacementManufacturer’s instructions and actual placement
Index device
PlacementManufacturer’s instructions and actual placement
Pre-test preparation
Standardised meal replacementType of replacement and duration of control (hours prior to testing)
Caffeine intakeDuration of control (hours prior to testing)
Medical screeningType of medical screening
Exclusion of participantsExclusions due to specific medication affecting cardiovascular function
Intense physical activityDuration of control (hours prior to testing)
Testing protocol
Type of protocolLaboratory, semi-free living/sport-specific, free-living
Contextual factorsIndoors, outdoors
Type of activityCycling, treadmill walking/running, swimming, other sports/activities
DurationMinutes, hours
Exercise intensityRelative to aerobic capacity (%HRmax, VO2max, RM) Or
Absolute values (ie, speed/ incline, W/rpm)
Steady-state (2–5 min)Mean HR (ie, 5–30 s intervals)
HR kinetics (transitions and recovery)ΔHR
Processing
Criterion measure processingMethod used for error correction and data smoothing
Index measure processingMethod used for resampling (is used)
Epochs for analysis/window sizeIn seconds
Index and criterion synchronisationMethod used (cross-correlations or similar methods)
Statistical analysis (report separately for each exercise intensity and/or activity)
N of paired observationsPaired HR (amount)
Data availabilityData availability (%)
Index device, mean HRMean±SD
Criterion device, mean HRMean±SD
Mean differenceMean±SD and SE
Mean absolute errorBpm
MAPE%
Standard LoAMean difference or mean relative difference and LoA including 95% CIs (separately for each steady-state intensity and/or activity)
Repeated measure LoA analysisMean difference or mean relative difference and LoA including 95% CIs (separately for each non-steady-state activities)
Within–device precision for steady-state activitiesThe 95% prediction interval and ICC (report separately for each steady-state intensity and/or activity)
Other
Deviations in the validation process
  • BMI, body mass index; bpm, beats per minute; ECG, electrocardiogram; HR, heart rate; HRmax, maximal heart rate; ICC, intra class correlation coefficient; LoA, limits of agreement; MAPE, mean absolute percentage error; RM, repetition maximum; rpm, repetitions per minute; SE, standard error; VO2max, maximal oxygen uptake; W, Watt.