Hypertrophy Perspectives #9: Quinton Agosta on Task-Dependent Recruitment & Real-World Coaching

Описание: Most hypertrophy talk online assumes we’re all young, symmetrical, pain-free, and training for Instagram.
Quinton Agosta’s reality?

He spends 40+ hours a week coaching people who are 50–80+, who have joint replacements, Parkinson’s, fear of falling — and still deserve strength, hypertrophy, and athletic movement.

This episode is the collision of neuroscience, biomechanics, and real-world coaching.

We break down the Marshall et al. (2022) monkey paper — the one showing flexible, task-dependent motor unit recruitment that breaks the oversimplified EMG → moment arm → activation story. And then we ask:
What does this actually mean for how people get stronger and grow muscle? In this episode we cover:

00:00 — Quinton’s background & multi-school athletic journey
03:40 — Early coaching roles & discovering orthokinetics
07:36 — Training seniors & real-world function vs aesthetics
09:04 — Rewiring bad movement patterns & pain avoidance
13:42 — Range of motion, nervous system desensitization & fixing imbalances
18:13 — Gym-floor coaching life & work-life transition into online
21:44 — Parkinson’s clients: dopamine, fall risk & cardiovascular priority
26:39 — Task-dependence in movement & jump-starting motor units
30:59 — Coaching psychology & getting clients to try hard
33:16 — Manual activation, ROM improvements & intensity regulation
38:02 — Stretch-mediated mobility vs static stretching
39:21 — Marshall et al. (2022): flexible motor-unit control
46:51 — Rep ranges, fiber types & athletic vs hypertrophy goals
49:20 — Why this paper matters & task-specific recruitment
53:54 — Joint-angle-specific motor units & ROM implications
55:47 — Biarticular muscle complexities (biceps, rectus femoris)
1:00:55 — Long-head triceps controversy & exercise mechanics
1:06:08 — Where neuromechanical matching still fits
1:12:02 — Delts: planes of motion, presses & mobility context
1:15:17 — Mobility as nervous system tolerance, not just sarcomeres
1:21:01 — What's most limiting for bodybuilders long-term
1:24:44 — Closing & social links

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