@online{olson2026,
  author = {Olson, Dieter},
  title = {Proximal-to-Distal {Energy} {Transfer} {(Technical}
    {Monograph)}},
  date = {2026-08-08},
  url = {https://affinedrift.com/articles/proximal_distal_energy_transfer/},
  langid = {en},
  abstract = {Proximal-to-distal sequencing is commonly treated as
    evidence that mechanical energy should be transferred outward as
    early and completely as possible. This monograph tests a narrower
    proposition: transfer timing and sign depend on system state,
    geometry, contact constraints, and the counterfactual used.
    Reproducible planar, compliant-shaft, moving-base, two-hand,
    spatial, and reduced full-body models separate control, momentum,
    gravity, damping, elasticity, and contact contributions. Registered
    timing sweeps, same-state killswitches, work-\/-energy balances,
    geometry reversals, cross-engine checks, and adverse-load controls
    identify mechanisms that are possible in the declared models and
    conditions that reverse or erase their effects. The results reject
    universal prescriptions. Delayed distal actuation can improve
    delivery in selected double-pendulum programs, separated hand forces
    can generate a negative late-downswing club couple without direct
    club torque, and passive structural pathways can alter delivery;
    however, matching rules materially change conclusions, elastic and
    proximal-rate effects retain both signs, and several observables are
    structurally non-identifying. An exact double-pendulum audit further
    shows that a fully excited seven-coefficient inverse model still
    cannot uniquely recover its declared eleven physical parameters.
    Model outputs therefore do not establish muscle action, intent,
    coaching strategy, anatomical validity, or equipment calibration.
    The release links each claim to equations, code, machine-readable
    results, and declared falsifiers. Independent human confirmation
    remains open because no governed participant dataset with
    synchronized bilateral six-axis grip wrenches, whole-body
    kinematics, ground reaction, club motion, and launch outcomes is
    currently available. The contribution is an open, testable framework
    for distinguishing feasible mechanisms from validated human
    effects.}
}