overexert

from WordNet (r) 3.0 (2006)

overexert
    v 1: exert (oneself) excessively and go beyond one's strength;
         "don't overexert yourself when exercising!"

from The Collaborative International Dictionary of English v.0.48

Overexert \O`ver*ex*ert"\, v. t.
   To exert too much.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

45 Moby Thesaurus words for "overexert":
      carry too far, exaggerate, exhaust, go overboard, go to extremes,
      go too far, haul, heave, know no bounds, overact, overcarry,
      overdevelop, overdo, overdrive, overelaborate, overemphasize,
      overexercise, overexpend, overextend, overindulge, overlabor,
      overplay, overreact, overspend, overstrain, overstress, overstudy,
      overtask, overtax, overtrain, overuse, overwork, pass all bounds,
      press, protest too much, pull, rack, strain, strain every nerve,
      stress, stretch, sweat blood, tax, tense, tug