How to recover mentally and emotionally after an act of mass violence

For emergency responders, trauma from an act of mass violence can create a cyclical pattern of negative thinking

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AAA study sets a benchmark for turnover in the EMS industry

Voluntary turnover and involuntary turnover of part-time and full-time EMS providers was studied to determine the overall EMS turnover rate

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How to use tax incentives to boost EMS recruitment

Tax incentives are one way to incentivize volunteer EMS professionals for agencies struggling with EMS recruitment and retention

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What is vicarious trauma and how to prevent it in EMS

Moderating exposure to secondary trauma and practicing self-care can help EMTs and paramedics avoid PTSD

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Fix the late call conundrum to improve retention

Two Australian paramedics are under investigation for refusing a late call assignment because of fatigue

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Addressing leadership and caregiver bias in EMS

The EMS leader's task is to recognize and reduce negative impacts of bias as much as possible

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EMS From a Distance: Upgrading EMS

Changing a fragmented industry from the bottom up

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What is a system?

Featuring systems-level questions that help to identify high-functioning STEMI systems of care

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Understanding the mindset of a paramedic student

Our co-hosts talk with paramedic student Reagan DeLuca about the process of learning and how confident he feels in his knowledge

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Convicted felons as EMTs?

California legislation proposes former inmates as emergency medical technicians

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Training Day: Video laryngoscopes for increased intubation success

Ensure your EMS providers understand when to use video laryngoscopes and airway anatomy, and practice their intubation skills

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Did a canceled drug trial strain the relationship between police and EMS?

Our co-hosts discuss a recent article about a pulled drug trial in Minnesota and its implication for local emergency responders

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Data: Behavioral emergencies are frequent, complex responses for EMS

EMS responses to psychiatric or behavioral emergencies are frequent, but violence, physical restraint and chemical restraint are rare

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How EMS data is being used to measure value, improve patient care

Two agencies share innovative ways to use data to improve performance, as well as measure and report the value EMS providers offer to their patients, agencies and communities

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STEMI benchmarks in EMS care

EMS benchmarks can help drive STEMI care improvements through data-driven improvements and hospital collaboration

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Perceptual and prefrontal cortex haemodynamic responses to high-intensity interval exercise with decreasing and increasing work-intensity in adolescents

Publication date: Available online 22 July 2018

Source: International Journal of Psychophysiology

Author(s): Adam A. Malik, Craig A. Williams, Kathryn L. Weston, Alan R. Barker

Abstract

Objectives

Affect experienced during high-intensity interval exercise (HIIE) is dependent on work-intensity, but the influence of increasing (low-to-high (L-H)) or decreasing (high-to-low (H-L)) work-intensity during HIIE remains unclear in adolescents. The role of prefrontal cortex haemodynamics in mediating changes in affect during HIIE also remains unexplored in adolescents. We examined affect, enjoyment and cerebral haemodynamic responses to HIIE with increasing or decreasing work intensities in adolescents.

Methods

Participants (N = 16; 8 boys; age 12.5 ± 0.8 years) performed, on separate days, HIIE cycling consisting of 8 × 1-min work-intervals at 100%-to-70% (HIIE_H-L), 70%-to-100% (HIIE_L-H) or 85% (HIIE_CON) peak power separated by 75 s recovery. Affect, enjoyment and cerebral haemodynamics (oxygenation (∆O₂Hb), deoxygenation (∆HHb) and tissue oxygenation index (TOI)) were recorded before, during, and after all conditions. Results: Affect and enjoyment were lower during HIIE_H-L compared to HIIE_L-H and HIIE_CON at work-intervals 1 to 3 (all P < 0.043, ES > 0.83) but were greater during HIIE_H-L than HIIE_L-H and HIIE_CON at work-interval 8 (all P < 0.048, ES > 0.83). ∆O₂Hb was similar across conditions (P = 0.87) but TOI and ∆HHb were significantly greater and lower, respectively during HIIE_H-L compared to HIIE_L-H and HIIE_CON at work-interval 8 (all P < 0.039, ES > 0.40). Affect was correlated with TOI (all r > 0.92) and ∆HHb (all r > −0.73) across conditions.

Conclusions

HIIE_H-L offers advancement to the HIIE_CON and HIIE_L-H which bring significant greater affect and enjoyment towards the end HIIE work-interval, implicating the feasibility and adoption of this protocol for health promotion in youth. Also, changes in prefrontal cortex haemodynamics are associated with the affect during HIIE.

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