Dumbbell ke mofuta oa lisebelisoa tse thusang bakeng sa ho phahamisa boima ba 'mele le boikoetliso ba' mele, bo sebelisetsoang ho aha koetliso ea matla a mesifa.Kaha ha ho na molumo ha motho a ikoetlisa, o bitsoa dumbbell.
Li-dumbbells ke lisebelisoa tse bonolo tse sebelisetsoang ho matlafatsa mesifa.Lintho tsa eona tse ka sehloohong ke tšepe e entsoeng ka tšepe, tse ling li na le lera la rabara.
E sebelisoa bakeng sa koetliso ea matla a mesifa, koetliso ea mesifa ea motsoako oa mesifa.Bakeng sa bakuli ba nang le matla a fokolang a mesifa a bakoang ke ho holofala ha motsamao, bohloko le ho se sebetse nako e telele, tšoara li-dumbbells le ho sebelisa boima ba li-dumbbells ho ikoetlisa ka matla khahlanong le ho hanyetsa ho koetlisa matla a mesifa.
Li-dumbbells li koetlisa mesifa e le 'ngoe;Haeba boima bo ntse bo eketseha, ho hlokahala ho hokahanya ha mesifa e mengata, 'me e ka boela ea sebelisoa e le mofuta oa koetliso ea liketso tsa mesifa.
Thuso ea ho phahamisa litšepe le boikoetliso ba 'mele.Ho na le mefuta e 'meli ea boima bo tsitsitseng le boima bo feto-fetohang.① Li-dumbbells tsa boima bo tsitsitseng.Lahlela ka tšepe ea kolobe, tšepe molamu bohareng, ka bobeli lipheletsong tsa bolo e tiileng e chitja, hobane ha ho na molumo nakong ea boikoetliso, ea bitsoang dumbbell.Boima ba li-dumbbell tse bobebe ke liponto tse 6, 8, 12, le 16 (ponto e le 'ngoe = 0.4536 kg).Boima ba li-dumbbells tse boima ke 10, 15, 20, 25, 30 kg, joalo-joalo ② Li-dumbbells tse feto-fetohang.Ho tšoana le barbell e fokotsehileng, ka har'a tšepe e khuts'oane ea tšepe lipheletsong tse peli tsa boima ba letlapa le chitja, bolelele ba 40 ~ 45 cm, ho phahamisa kapa ho ikoetlisa ho ka eketsa kapa ho fokotsa boima ba 'mele.Hangata ho etsa boikoetliso ba dumbbell, ho ka matlafatsa matla a mesifa ea likarolo tse fapaneng tsa 'mele.
Hoa tsebahala hore tlhahlobo ea ho ikamahanya le maemo ea matla a centrifugal e lokela ho etsoa ha tlhahlobo ea boikoetliso ba 'mele ea astronaut e etsoa.Matla a Centrifugal a ka etsa hore ntho ea pele e nang le boima bo fokolang e fumane matla a kinetic ka makhetlo a 'maloa ho feta tloaelo ka motsotsoana,' me e tsoele pele ho hlahisa inertia, kahoo matla a matla a centrifugal a ke ke a nyenyefatsoa.Indasteri ea lisebelisoa tsa boikoetliso e 'nile ea leka ho fumana litsela tsa ho sebelisa mofuta ona oa matla a kinetic hang-hang ho moralo oa lihlahisoa.Tlas'a mokhoa ona, ho ile ha hlaha "kinetic energy dumbbell" e sa tsoa etsoa.E senya maikutlo a boima a li-dumbbells tsa setso 'me e etsa hore boikoetliso bo boima bo phutholohe.E kopanya litšobotsi tse sebetsang tsa bolo ea letsoho le li-dumbbells ho fana ka koetliso ea bohlokoa ea mesifa le phello ea boikoetliso ba 'mele oohle.
Nako ea poso: Aug-05-2022