This has been studied in several countries but the best information comes from the natives of the Tuamotu Archipelago in Polynesia, where freedivers in the past made 40 to 60 dives a day to depths of 100 to 140 feet to gather pearls. Their descents were assisted by a lead weight and they ascended by pulling themselves up a rope tethered to a collection basket. An assistant then raised the basket to retrieve the shells gathered on the bottom. Descent times were 30 to 50 seconds, total dive time, about 100 seconds and the surface interval between dives was four to six minutes. Many of the divers developed a severe illness called Taravana, the symptoms of which are similar to those of decompression sickness-paralysis, visual changes, hearing loss and dizziness. Some divers died.
Fred Bove, M.D., Ph.D. Can Freediving Cause DCS?
Bonny.. We might need to take this into consideration for any freediving trip. huhuh..
Salam.. Announcement tuk sume.. dalam post 2nd latest tu aku ada annouce pasal new email subscription system. Nak tukar dari yang lama, pakai FeedBurner. FeedBurner lawa sket, email update yang dia send akan ada gambar skali.. yang lama tu, bukan je gambar xde, x full, content asal pun dah x jadi, x kuar.. x reti nak baiki..
aku dah masukkan email2 lama dari yang lama, ke feedburner, tapi korang kena confirmkan subscription, suppose ada instruction dalam email korang. Sape yang x masukkan lagi, sila la berbuat demikian, senang nak update kalau ada pape news.. tambah2 mase cuti..
almanak xde lagi wei.. ni mmg betul2 up kan website je dulu.. content kelab, daripada Adi mmg aku x masukkan pape lagi kat sini.. buat masa ni, boleh discuss dalam forum ni dulu la.. apa plan nak buat lepas ni..
memula ni, sminggu 2 ni kita pegi bekelah nak? x pun pegi ushar lubuk kawah ke..
haa.. tu boleh je guna. memula yela kot, rasa x besa sket website ni. dah lama sket nnti ok la.. ada forum ni la senang nak discuss. sblm ni mcm one way, aku je yang tulis.. ko nak tulis kat front page tu pun boleh ammar..
