Accuracy of Five Talking Pedometers under Controlled Conditions

[摘要] Background: Thisstudy examined the reliability and accuracy of five talking pedometers: BrookstoneTalking Pedometer, Voice Zone, Sportline 343, Accusplit Alliance AL390, andOregon Scientific PE829. All pedometers announced cumulative step count whenthe talk button was pressed. Methods: Ten olderadults (73 ± 5.5 years old), and 13 adults with visual impairments (42.4 ± 13.6years old) wore the pedometers during a 50-step walk, ascending and descendingstairs.Pedometer step counts werecompared to hand-tally counts.Results: Allpedometers underestimated actual steps with higher prevalence of under-countingwhen ascending stairs and descending stairs.Average absolute errors follow: Brookstone(13.0%±13.8), Accusplit (18.7%±21.7), Voice Zone (20.2%±18.1), OregonScientific (25.7%±24.3) and Sportline (33.7±25.5).Conclusions: TheBrookstone and Accusplit pedometers were the most accurate models.None of the talking pedometers tested appearedappropriate for research (maximum of 5% error) or general use (maximum of 10%error).

[学科分类] 眼科学

[关键词] Anisopteromalus calandrae;venom transcriptome;venom gland;ectoparasitoid;insect pests