We gave a sports injury questionnaire survey to 821 active canoeists, members of the Japan Canoe Association (JCA), and performed
a medical check of 63 top competi-tive JCA canoeists, including physical and laboratory tests and radiographic examinations
of the chest, spine, shoulder, elbow, and wrist joints. Completed questionnaires were returned by 417 canoeists, whose reported
racing styles were: kayak, 324; Canadian canoe, 71; slalom, 13; and not specified, 9. Of the 417 respondents, 94 canoeists
(22.5%) reported that they experienced lumbago; 20.9% experienced shoulder pain; 3.8%, elbow pain; and 10.8%, wrist pain.
On medical examinations, lumbago was found to be mainly of myofascial origin or due to spondylolysis. Impingement syndrome
was also observed in 4 canoeists with shoulder problems. The competitive canoeists had low blood pressure, and some had bradycardia.
On laboratory examinations, serum hemoglobulin, hematocrit, high-density lipoprotein cholesterol (HDL-CHO), creatine phosphokinase
(CK), and creatine (CRTN) in the top competitive canoeists showed high values in comparison with those of an age-matched control
group. However, low serum total cholesterol (TP) values were observed in the top competitive canoeists.
Key words: medical check - paddling - canoe - overuse
Received for publication on March 23, 1998; accepted on Jan. 6, 1999