Inclusion Criteria:

• Participants must be between 18 and 30 years of age.
• Must be able to read, understand, and provide informed consent, in English.
• Must be currently participating in an organized sport (e.g. collegiate, club, or competitive recreational level) or engaging in structured resistance training and athletic conditioning for recreational sports events (e.g 5k, marathon, Crossfit, Hyrox, etc).
• Medically stable with no known contraindications to physical exertion.
• Cleared for participation in strength or maximal-effort isometric testing.
• Be able to perform lower extremity isometric testing without pain that limits maximal effort.
• Must have 2 lower extremities capable to producing full range knee flexion and extension range of motion.
• No medical condition that significantly alters lower extremity neuromuscular performance.
• No history of lower extremity surgery in the past 12 months.

Exclusion Criteria:

• Individuals younger than 18 or older than 30.
• Acute lower extremity injury in the last 12 weeks.
• Lower extremity surgery within the last 12 months.
• Pain in either lower extremity that would limit maximal physical exertion.
• History of neurological disorders, including but not limited to: Neuropathy, Stoke, MS, Parkinson's Disease, etc.
• Use of medications that significantly impact neuromuscular performance, strength or fatigue.
• No supplementation that affects neuromuscular performance, strength, or fatigue.
• Unable to read and understand English.
• Not in a vulnerable population: Pregnant, mentally or physically challenged, cognitively impaired.