NASM’s Integrated Performance Paradigm outlines three sequential phases of efficient movement:
Reduce force eccentrically (control and decelerate)
Stabilize isometrically (hold position to maintain control and alignment)
Produce force concentrically (accelerate in the intended direction).
The isometric stabilization phase occurs immediately after the eccentric phase and before concentric acceleration. For example, in a jump, the body first absorbs impact forces eccentrically, then stabilizes to maintain proper alignment and readiness for propulsion, and finally explosively extends joints concentrically to lift off.
The isometric stabilization stage is critical for joint integrity, muscle coordination, and injury prevention, as it allows the neuromuscular system to prepare for the next movement phase. Therefore, following the eccentric force reduction in the performance paradigm, the next step is to stabilize isometrically.
Submit