Introducing SUSTAIN

When Performance Drops, Mistakes Happen

SUSTAIN: Performance Recovery System for High-Demand Teams

Teach your team how to recognize declining capacity, recover effectively, and maintain consistent performance under sustained demand.

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Protect Performance. Reduce Hidden Loss.

A structured performance recovery system that helps teams recognize declining capacity, recover effectively, and maintain consistent performance under sustained demand.

Stress Signal Recognition

Recognize the early signs of declining capacity before performance begins to suffer.

Decision Integrity Under Pressure

Maintain clarity, judgment, and focus in high-demand environments.

Sustained Capacity

Build sustainable performance through structured recovery and capacity management.

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$2.5M

Estimated annual cost of fatigue for an organization with 1,000 employees, driven by productivity loss, health costs, errors, and operational disruption.

~$2500

Estimated annual productivity loss per employee due to performance decline associated with fatigue.

.05%

Fatigue can impair performance similarly to a BAC of 0.05% or higher, doubling impairment risk.

53%

Over half of workplace incidents involve human performance factors such as attention, decision-making, and situational awareness.

The Story behind Sustained Performance

Driving Clarity. Sustaining Results.

Focused on restoring capacity, reducing fatigue, and protecting performance in high-demand environments.

Kassie Mandseth Creator- Headshot






Kassie Mandseth created Sustained Performance to help organizations maintain human performance under sustained demand. Through its flagship system, SUSTAIN, organizations learn practical, evidence-informed strategies to recognize declining capacity, recover effectively, and maintain consistent performance in high-demand environments.

Having worked in high-demand operational environments herself, Kassie understands that technical skill alone is not enough. Sustained performance depends on the ability to recognize when capacity is declining and recover before performance begins to suffer.
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SUSTAIN is built on one simple belief: High performance isn't sustained by technical skill alone. It also depends on our ability to recover, restore capacity, and continue performing when demand doesn't let up.
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