Kwabasubathi impendulo ilula: yenza uthando akuwona umncintiswano ngakho akuwona umdlalo. Kodwa kulabo bethu abanqikazi ukugqoka amateki ethu ukuze bagijime i-half marathon, kungenzeka yini ukuhlanganisa ibhizinisi nenjabulo?

Uma sizokholelwa i-WHO (World Health Organization), ukuvivinya umzimba kuhlanganisa imisebenzi yokuzilibazisa, uhambo ngebhayisikili noma ngezinyawo… kodwa futhi “imisebenzi yokudlala”. Ukuze uhlale unempilo enhle, isikhungo sincoma futhi ukuzijwayeza okulingana no-2h30 wokukhuthazela okusesilinganisweni noma u-1h15 wokuzivivinya ngamandla isikhathi ngasinye okungenani esiyimizuzu eyi-10 isonto ngalinye.

Lapho sikwazi lokhoumbiko omaphakathi uthatha imizuzu eyi-7,3¹ (ucwaningo olwenziwe imibukiso esandleni) nokuthi amaFulentshi azinikele kukho kancane ngaphezu kokukodwa ngesonto² (Izikhathi eziyisi-6 ngenyanga), sisekude nophawu. Kodwa akubizi lutho ukuzama.

Ucansi: umsebenzi wokuqeqeshwa kwe-cardio njenganoma yimuphi omunye?

Kuyaqondakala ukuthi isayensi ibambezelekile ukuba nentshisekelo kulo msebenzi osusithokozise iminyaka eyinkulungwane. Umgubuzelo olinganiselwe wokuziphatha awuzange ususwe kwaze kwaba ngo-1956 e-United States, nguDkt. Bartlett.³. Ngomqondo othile wokubheka, usosayensi waphawula “Ukufana okumangalisayo” phakathi kokusabela ngokomzimba kowesilisa nowesifazane ngesikhathi socansi. Izinhliziyo zabo bobabili abalingani zishaya ngokushesha futhi nokuphefumula kwabo kuyashesha, ikakhulukazi ngesikhathi se-orgasm. 

Kodwa abalandeli bochungechunge lwaseMelika Omasters of Sex (Showtime, 2013) yazi ukuthi iziphetho zesayensi azigcini lapho. Kunokuba babe abalingiswa bezinganekwane, abelaphi ngocansi uWilliam Masters noVirginia Johnson babekhona ngempela. Ngo-1966, babika imiphumela yeminyaka engu-11 yocwaningo kuhlanganise nabesifazane abacishe babe ngama-700 namadoda, abaneminyaka engu-18 kuya ku-89.⁴. Ngokusho kokubona kwabo, izinga lokuphefumula likhuphuka kancane kancane ngesikhathi socansi kuze kube yilapho lifinyelela imijikelezo engu-40 ngomzuzu (isilinganiso esivamile: imijikelezo engu-12 kuya kwengu-20 / min) futhi ukushaya kwenhliziyo kungakhuphukela ku-110 kuya ku-180 beats ngomzuzu, nge ukuphakama ngesikhathi se-orgasm. Lapha sinento yokuqala yokuqhathanisa nezemidlalo. Kodwa lokho ngaphandle kokubala kwisithako esiyimfihlakalo ... the uthando ! Laba bacwaningi ababili bacacile: ukuqina kwempendulo ye-physiological ilingana ne- izinga lokucindezeleka ngokocansi.

Yiliphi izinga lokuqina esingalilindela ku-a inhliziyo ? Ukuze lithole, ithimba labacwaningi lifake amavolontiya angu-32 ekuhlolweni kokucindezeleka.⁵. Ngemva kokubagibela ebhandeni elihambayo, babanikeza inkululeko yokukhuphuka amakhethini. Imiphumela: Abathandi bangalindela ukufinyelela cishe ku-75% womthamo wabo omkhulu wenhliziyo (izinga lenhliziyo nomfutho wegazi) kodwa ngokuvamile cishe ku-50%. Esinye isiphetho socwaningo: lapho ukumelana okukhulu nomzamo womzimba, kukhulu ubude besikhathi sombiko kubalulekile (imizuzu engu-2,3 yama-somersault azuzwe ngeminithi ngalinye lomdlalo ngomfutho omkhulu owenziwayo). Ngakho-ke ukuqeqeshwa ngokomzimba akuyona into encane.

Kunalokho ukudoba noma ukweqa uthango?

Ake sithi ingxenye yomlenze emoyeni iwukuzivocavoca umzimba. Ingabe ilingana nohambo oluhle lokudoba noma isithiyo esingamamitha angu-400? Ngokusho komagazini besifazane, sishisa isilinganiso sama-kcal angama-200 ngesikhathi se-frolic, I-400 kcal kwabagangile kakhulu.

Kodwa uJulie Frappier, isazi sesayensi yesintu owaphothula eNyuvesi yaseQuebec eMontreal, akagcini nje ngokufunda omagazini. Kodwa-ke, ngo-2012, izifundo ezimbalwa ezisungulwe ngokunemba amandla asetshenziswe ngaphansi kwe-duvet. Ngakho-ke unquma ukuhlomisa imibhangqwana emincane engama-21 ethandana nobulili obuhlukile ngesongo esixhunyiwe.⁶. Imiyalo yabo icacile: ukwenza ucansi ngesonto inyanga yonke ngokuvula idivayisi ngesikhathi sokudlala kwangaphambili.  

Ingabe "i-400 kcal sex" ingokoqobo? Akuhambisani nokutholwe ocwaningweni. Amandla asetshenzisiwe angathanda ukuba khona 100 kcal kwabesilisa kanye 70 kcal kwabesifazane. Noma okulingana no-25 cl kabhiya kumnumzane, kanye nengilazi ye-brut champagne yomlingani wakhe ...

Futhi ngokombono wezemidlalo, simi kuphi? Ucwaningo luphakamisa ukuthi ingxenye yomlenze emoyeni i umsebenzi wokuqina omaphakathi^*. Uma kuqhathaniswa, ukuqina kokuzivocavoca kungaba phezulu kunokuhamba ku-4.8 km/h kodwa kube ngaphansi kunokugijima ngo-8 km/h. Ngakho-ke sikhuluma ngokuhamba kahle ehlathini. 

KuJulie Frappier nozakwabo, isenzo sothando singathathwa njenge ukuzivocavoca umzimba okubalulekile empilweni. Uma sinamathela ezincomo zezikhungo zezempilo zaseMelika⁷, kungathatha imizuzu engu-30 yokuzivocavoca okunamandla izikhathi ezi-5 ngesonto ukuze ulondoloze isimo esihle somzimba. Umzuzu wokusondelana uzochitha ingxenye yesithathu yamandla kanye nezingxenye ezimbili kwezintathu zokuqina^* iseshini yemizuzu engama-30. Okubalulekile, okutholwe ocwaningweni kugqamisa ababambiqhaza ababenakho kumnandi kakhulu ukuzitika ngocansi kunokuzivocavoca umzimba. Akuyona yini into esemqoka lena?

*Ukuzivocavoca umzimba okulula, okumaphakathi noma okuqinile ? Ukuze kutholwe ukushuba kokuzivocavoca ukusuka enanini lamakholori asetshenziswa umuntu ngamunye, ososayensi bayabala isilinganiso se-metabolic (I-Metabolic Equivalent of Task, MET) bese uqhathanisa umphumela namathebula ereferensi. Isibonelo, ukubuka ithelevishini kuwumsebenzi we-1 MET (ukukhanya kokukhanya), shisha yi-3,4 MET (ukuqina okumaphakathi) futhi ama-push-ups yi-10 MET (umsebenzi oshubile). UJulie Frappier nozakwabo bayalinganisela ukuqina kocansi kuma-MET angu-6 kwabesilisa kanye nama-MET angu-5,6 kwabesifazane, noma umsebenzi onamandla amaphakathi. Ngo-2011, imisebenzi yansuku zonke engama-821 yayinokulingana kwayo kwe-metabolic.