Short answer

Do not rely on simple ergogenic aids to compensate for significant sleep deprivation in tasks requiring high accuracy and complex manipulation; instead, design for reduced cognitive load and error tolerance.

Field
Human Factors
Source
PLoS ONE (2023)
Method
Experimental, within-subjects design
Sample
18 participants
Evidence
Moderate effect

While ammonium inhalants can provide a small, temporary improvement in reaction time and jump height, they do not mitigate the significant performance declines in complex military tasks like shooting or equipment manipulation caused by prolonged sleep deprivation. This human factors research insight is drawn from a 2023 study published in PLoS ONE. Using Experimental, within-subjects design with 18 participants, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Do not rely on simple ergogenic aids to compensate for significant sleep deprivation in tasks requiring high accuracy and complex manipulation; instead, design for reduced cognitive load and error tolerance.

Study
Human FactorsRecentModerate effect

Ammonium Inhalants Offer Minor Performance Boosts Under Sleep Deprivation, But Don't Compensate for Critical Task Degradation

While ammonium inhalants can provide a small, temporary improvement in reaction time and jump height, they do not mitigate the significant performance declines in complex military tasks like shooting or equipment manipulation caused by prolonged sleep deprivation.

PLoS ONE · 2023

01

Key Findings

  • 01Ammonium inhalants led to a small but significant improvement in simple reaction time (1.6%) and countermovement jump height (1.5%).
  • 02Ammonium inhalants also reduced the rating of perceived exertion (9.4%) and increased heart rate (5.0%).
  • 03Neither shooting accuracy nor rifle disassembly/reassembly performance was significantly affected by ammonium inhalants or sleep deprivation.
  • 04Performance on simple reaction time and countermovement jump height varied depending on the time of day and sleep debt.
  • 05Subjective sleepiness (Epworth Sleepiness Scale) increased significantly with prolonged sleep deprivation.
02

Application

Design takeaway

Do not rely on simple ergogenic aids to compensate for significant sleep deprivation in tasks requiring high accuracy and complex manipulation; instead, design for reduced cognitive load and error tolerance.

How to apply

When designing tools or interfaces for environments where users are likely to experience sleep deprivation, prioritize intuitive design, clear error prevention, and simplified workflows over features that assume optimal cognitive function.

Project actions

  • 01When researching user states, consider how physiological factors like fatigue can impact performance on different types of tasks.
  • 02If exploring performance aids, investigate their specific effects on various cognitive and motor skills, not just general alertness.
03

Method & Evidence

AimTo investigate the acute effect of ammonium inhalants (AI) on cognitive and physical performance during 36 hours of total sleep deprivation (TSD) in military personnel.
MethodExperimental, within-subjects design
ProcedureEighteen male military cadets underwent 36 hours of total sleep deprivation, completing five testing sessions at different time points. At each session, participants performed tasks including simple reaction time, shooting accuracy, rifle disassembly/reassembly, and countermovement jump height, both with and without the use of ammonium inhalants. Physiological measures like heart rate and perceived exertion were also recorded.
Sample18 participants
ContextMilitary operations and training

Variables

IV["Use of Ammonium Inhalants (AI vs. Control)","Time since sleep deprivation began (0, -12, -24, -36 hours)","Time after recovery sleep (+8 hours)"]
DV["Simple Reaction Time (SRT)","Shooting Accuracy (SA)","Rifle Disassembling and Reassembling time/accuracy (DAS)","Countermovement Jump Height (JH)","Epworth Sleepiness Scale (ESS)","Rating of Perceived Exertion (RPE)","Heart Rate (HR)"]
CV["Participant gender (all male)","Participant age range","Participant weight range","Military cadet status","Testing environment conditions (assumed consistent)","Specific tasks performed"]
04

Strengths & Limitations

Strengths

  • +Controlled experimental design with within-subjects comparison.
  • +Inclusion of both cognitive and physical performance measures.
  • +Inclusion of subjective measures (ESS, RPE) alongside objective performance.

Limitations

The sample size was small, and the participants were all young, healthy males, so the results might not apply to everyone.

Reliability & validity

The study employed a within-subjects design, which helps control for individual variability, enhancing internal validity. The use of standardized tasks and objective measures contributes to reliability. However, the sample size is relatively small, and the specific context of military cadets may limit external validity.

Think critically

Considering that ammonium inhalants did not improve shooting accuracy or rifle disassembly, what design features could be implemented to support these specific tasks in a sleep-deprived state?

05

Design Principles

"Task complexity and user state (e.g., sleep deprivation) interact to determine the efficacy of performance-enhancing interventions."

This research highlights the limitations of simple ergogenic aids when facing severe physiological stress. Designers of operational equipment and protocols must recognize that such aids cannot replace adequate rest for maintaining proficiency in high-stakes, complex tasks.

06

What This Means for Your Design

Using smelling salts can make you a tiny bit faster at simple tasks when you're tired, but they won't help you shoot better or fix your gear if you haven't slept.

How to use in your project

  • 1.Reference this study when discussing the impact of user fatigue on the performance of specific design elements or tasks within your design project.
07

Add to My Project

08

Quick Cite

Paragraph starter

The findings from Maleček et al. (2023) demonstrate that while certain ergogenic aids can offer minor, transient benefits for simple physical and reaction tasks under sleep deprivation, they are ineffective in supporting complex, high-accuracy operations. This underscores the importance of designing systems that account for significant user fatigue by simplifying critical tasks and incorporating robust error-prevention mechanisms, rather than relying on external aids to maintain performance.

09

Source

PLoS ONE

Effects of 36 hours of sleep deprivation on military-related tasks: Can ammonium inhalants maintain performance?

journal · 2023

View source

Questions About This Research

What does the research say about ammonium inhalants offer minor performance boosts under sleep deprivation, but don't compensate for critical task degradation?
Do not rely on simple ergogenic aids to compensate for significant sleep deprivation in tasks requiring high accuracy and complex manipulation; instead, design for reduced cognitive load and error tolerance. Evidence: PLoS ONE (2023).
Why does "Ammonium Inhalants Offer Minor Performance Boosts Under Sleep Deprivation, But Don't Compensate for Critical Task Degradation" matter for design?
This research highlights the limitations of simple ergogenic aids when facing severe physiological stress. Designers of operational equipment and protocols must recognize that such aids cannot replace adequate rest for maintaining proficiency in high-stakes, complex tasks.
How can designers apply this research?
Do not rely on simple ergogenic aids to compensate for significant sleep deprivation in tasks requiring high accuracy and complex manipulation; instead, design for reduced cognitive load and error tolerance.
What were the main findings?
Ammonium inhalants led to a small but significant improvement in simple reaction time (1.6%) and countermovement jump height (1.5%).. Ammonium inhalants also reduced the rating of perceived exertion (9.4%) and increased heart rate (5.0%).. Neither shooting accuracy nor rifle disassembly/reassembly performance was significantly affected by ammonium inhalants or sleep deprivation.. Performance on simple reaction time and countermovement jump height varied depending on the time of day and sleep debt.
What research method was used?
Experimental, within-subjects design with 18 participants.
How strong is the evidence?
Evidence strength is rated Moderate effect, based on a 2023 journal from PLoS ONE.
What should I do differently in my next project?
When designing tools or interfaces for environments where users are likely to experience sleep deprivation, prioritize intuitive design, clear error prevention, and simplified workflows over features that assume optimal cognitive function.
What are the limitations?
The study focused only on male military cadets, limiting generalizability to other populations or genders. The effects of chronic sleep deprivation were not assessed. The study did not investigate the long-term effects or potential side effects of ammonium inhalant use.