Ibhola ngumdlalo onobungozi. Umbhoxo kufuneka ubekwe kwindawo yesibini njengomdlalo obulalayo emva komlo ukuba yonke imidlalo ithathwa njengeyingozi. Yintoni kanye eyenziwa ngumnqwazi webhola emva koko? Ngokwenyani, lo mba unokusonjululwa ngokulula. I-air cushion kwi-helmet yomdlali isebenza njengento yokulungiswa kunye nokukhusela. Ngexesha lemidlalo eshushu ye-NFL, abagcini bomlomo babalulekile ukunqanda ukwenzakala ebusweni namazinyo wabadlali. Ukugruzuka kwalapha ekhaya, ukugruzuka kolusu, ukukruneka kwamalungu, ukukruneka kwezihlunu, kunye nolunye umonzakalo luxhaphakile embhoxweni, kodwa ukugruzuka kunxulumene ngokukodwa nombhoxo kwaye akunakuthathelwa ngqalelo nokuba zizifo zombhoxo. Nokuba kukhuselwe isigcina-ntloko, ukwenzakala kakhulu akunakuthintelwa ngokupheleleyo

Ibonwa njengeqhekeza lenguqu yemidlalo, eyona helmet ikhuselekileyo kwimbali yeNFL. Abadlali abaninzi be-NFL banxiba le helmethi. Kodwa yenzelwe ukuthambisa ukubetha kwentloko yabadlali beNFL. Izazinzulu, ii-neurosurgeons kunye neenjineli ezayila isigcina-ntloko zayenza yacaca into yokuba ayizukuthintela ukungqubana. Akukho sigcina-ntloko sinokukwenza oko.