Correction

This article refers to:

The effects of caffeine on marksmanship accuracy and reaction time: a systematic review

Article title: The effects of caffeine on marksmanship accuracy and reaction time: a systematic review

Authors: Torres, C., & Kim, Y.

Journal: Ergonomics

Bibliometrics: Volume 62, Number 8, pages 1023–1032

DOI: https://doi.org/10.1080/00140139.2019.1613572

When this article was originally published online, there were errors in table 2. The table 2 information for Gillingham 2003 has been updated to:

N 13 males

Age 28 ± 9

treatment: 1 dose 300 mg caffeine capsule

Table 2. Stressful environment without sleep deprivation.

Study	n	Age	Subjects	Study type	Min between dose and test	Situation	Treatment	Primary outcomes	Secondary outcomes
Gillingham et al. 2003	13 M 3 F	28 ± 9	Canadian Military Reservists	Randomised, blinded, crossover	60	Received one dose followed by 2.5 hrs military skills exercise task. Re-dose followed by final shooting test.	1 dose 300mg caffeine capsule.	Marksmanship accuracy was unaffected by caffeine.	Reaction time improved with caffeine and precision was unaffected (p < .05).
Gillingham, Keefe, and Tikuisis 2004	9 M 3 F	26.8 (M) 26.3 (F)	Canadian Military Reservists	Randomised, blinded, crossover	60	Received one dose followed by 2.5 hrs military skills exercise task. Re-dose followed by final shooting test.	2 doses: 5 mg/kg and 2.5 mg/kg or placebo capsule.	Marksmanship accuracy was unaffected by caffeine.	Reaction time improved with caffeine (p < .05).
Clemente-Suarez and Robles-Perez 2015	19 M	38.9 ± 4.1	Soldiers in Spanish Army	Randomised, blinded, crossover	30	Tested marksmanship in close quarter combat simulation Subjects had average of 6.1 h sleep prior to activity.	1 dose 400 mg caffeine monohydrate or placebo pill.	Marksmanship accuracy was unaffected by caffeine.	Heart rate and anxiety increased with caffeine (p < .05).
Diaz-Manzano et al. 2018	20 M	38.8 ± 4.0	Soliders in Spanish Army	Randomised, blinded, crossover	30	Tested marksmanship in close quarter combat simulation Subjects had average of 6.1 h sleep prior to activity.	1 dose 400 mg caffeine monohydrate or placebo pill.	Marksmanship accuracy was unaffected by caffeine.	Heart rate and anxiety increased with caffeine (p < .05).
Pomportes et al. 2018	6 M 4 F	18.5 (M) 18.9 (F)	High level modern pentathlon athletes	Randomised, blinded, crossover	25 and 80	Dose followed by a 40 min run, with re-dose in mid-run, immediately followed by the final shooting test.	2 doses of CHO, guarana complex, 200 and 100 mg caffeine, or placebo drink in 250 and 125 mL.	Marksmanship accuracy was unaffected by caffeine.	Reaction time improved with caffeine (p=.01).

Notes: M: male; F: female.