Dumbbell yog ib yam khoom siv pab txhawb nqa qhov hnyav thiab qoj ib ce, uas yog siv los tsim kev cob qhia cov leeg nqaij. Vim tias tsis muaj suab thaum xyaum, nws hu ua dumbbell.
Dumbbells yog cov khoom siv yooj yim siv los ntxiv dag zog rau cov leeg. Nws cov khoom tseem ceeb yog cam khwb cia hlau, ib txhia nrog ib txheej ntawm roj hmab.
Nws yog siv rau kev cob qhia cov leeg nqaij, kev cob qhia cov leeg nqaij. Rau cov neeg mob uas tsis muaj zog ntawm cov leeg nqaij uas tshwm sim los ntawm kev txav mus los, qhov mob thiab lub sijhawm ntev tsis ua haujlwm, tuav dumbbells thiab siv qhov hnyav ntawm dumbbells los tawm dag zog tawm tsam kev tawm tsam rau cov leeg nqaij.
Dumbbells cob qhia ib leeg leeg; Yog tias qhov hnyav nce ntxiv, kev sib koom tes ntawm ntau cov leeg yuav tsum tau ua, thiab nws kuj tseem siv tau los ua ib hom kev cob qhia cov leeg nqaij.
Ib qho kev pab rau qhov hnyav lifting thiab qoj ib ce. Muaj ob hom kev ruaj khov thiab qhov hnyav adjustable. ① Kho qhov hnyav dumbbells. Cam khwb cia nrog npua hlau, hlau pas nrig nyob rau hauv nruab nrab, ob qho tib si kawg ntawm cov khoom round pob, vim hais tias tsis muaj suab nrov thaum xyaum, hu ua dumbbell. Qhov hnyav ntawm lub teeb dumbbells yog 6, 8, 12, thiab 16 phaus (1 phaus = 0.4536 kg). Qhov hnyav ntawm dumbbells hnyav yog 10, 15, 20, 25, 30 kg, thiab lwm yam. ② Adjustable dumbbells. Zoo ib yam li qhov txo qis barbell, nyob rau hauv luv luv hlau bar ntawm ob qhov kawg ntawm qhov hnyav ntawm cov ntawv hlau puag ncig, txog 40 ~ 45 cm ntev, nqa lossis qoj ib ce tuaj yeem nce lossis txo qhov hnyav. Feem ntau ua dumbbell ce, tuaj yeem ntxiv dag zog rau cov leeg nqaij ntawm ntau qhov chaw ntawm lub cev.
Nws yog qhov paub zoo tias qhov kev ntsuas kev hloov pauv ntawm lub zog centrifugal yuav tsum tau ua thaum tus neeg caij nkoj kuaj lub cev qoj ib ce. Lub zog centrifugal tuaj yeem ua rau cov khoom qub nrog cov khoom me me tau txais ob peb zaug ntau lub zog kinetic tshaj li niaj zaus hauv ib pliag, thiab txuas ntxiv tsim inertia, yog li lub zog ntawm lub zog centrifugal tsis tuaj yeem kwv yees. Kev lag luam cov cuab yeej siv dag zog tau sim nrhiav txoj hauv kev los siv cov khoom siv hluav taws xob tam sim no rau cov khoom tsim. Nyob rau hauv cov qauv no, tus tshiab tsim kinetic zog dumbbell tau yug los. Nws tawg los ntawm kev xav hnyav ntawm cov tsoos dumbbells thiab ua rau kev tawm dag zog hnyav dua. Nws muab cov yam ntxwv ua haujlwm ntawm lub dab teg pob thiab dumbbells los muab kev cob qhia cov leeg tseem ceeb thiab tag nrho lub cev qoj ib ce.
Post lub sij hawm: Aug-05-2022