@article {26674,
	title = {Effets d\&rsquo;un r{\'e}entra{\^\i}nement dans la zone du LIPOXmax sur la composition corporelle de femmes ob{\`e}ses d\&rsquo;{\^a}ge p{\'e}rim{\'e}nopausique.},
	journal = {Sciences et sport },
	year = {2020},
	abstract = {
	R{\'e}sum{\'e}



	Objectif



	Le but de notre travail est d{\textquoteright}{\'e}valuer les effets d{\textquoteright}un r{\'e}entra{\^\i}nement en zone de LIPOXmax sur les param{\`e}tres anthropom{\'e}triques, imp{\'e}danc{\'e}m{\'e}triques et cardiorespiratoires chez des femmes ob{\`e}ses d{\textquoteright}{\^a}ge p{\'e}rim{\'e}nopausique.



	M{\'e}thode et mat{\'e}riel



	Soixante et une femmes ob{\`e}ses (IMC\&nbsp;>=\&nbsp;30\&nbsp;kg/m2) ont particip{\'e} au protocole de r{\'e}entra{\^\i}nement individualis{\'e} dans la zone du LIPOXmax (40{\textendash}50\&nbsp;\% de\&nbsp;V.\&nbsp;O2max mesur{\'e}e) r{\'e}alis{\'e} sur ergocycle. Le protocole s{\textquoteright}est {\'e}tal{\'e} sur trois semaines {\`a} raison de trois s{\'e}ances par semaine. Chaque s{\'e}ance dure 60\&nbsp;mn. Le poids, l{\textquoteright}IMC et la composition corporelle ont {\'e}t{\'e} {\'e}valu{\'e}s avant et apr{\`e}s r{\'e}entra{\^\i}nement. Les capacit{\'e}s cardiorespiratoires (V.\&nbsp;O2max, FCmax, d{\'e}pense {\'e}nerg{\'e}tique li{\'e}e {\`a} l{\textquoteright}effort [DEE] et Mets) obtenues suite {\`a} un test d{\textquoteright}effort maximal (FCmax mesur{\'e}e\&nbsp;>=\&nbsp;90\&nbsp;\% valeur pr{\'e}dite) ont {\'e}t{\'e} {\'e}valu{\'e}es avant et apr{\`e}s r{\'e}entra{\^\i}nement.



	R{\'e}sultats



	Le protocole de r{\'e}entra{\^\i}nement individualis{\'e} en zone de LIPOXmax a permis des changements tant sur le poids, sur la composition corporelle que sur les fonctions cardiorespiratoires. Le poids total et l{\textquoteright}IMC ont diminu{\'e} de mani{\`e}re significative (poids 92,97\&nbsp;{\textpm}\&nbsp;15,46\&nbsp;vs 95,02\&nbsp;{\textpm}\&nbsp;15\&nbsp;kg,\&nbsp;p\&nbsp;=\&nbsp;0,001) (IMC 37,58\&nbsp;{\textpm}\&nbsp;5,86\&nbsp;vs 38,66\&nbsp;{\textpm}\&nbsp;5,9\&nbsp;kg/m2,\&nbsp;p\&nbsp;=\&nbsp;0,002). Il y a une diminution non significative de la masse grasse (42,78\&nbsp;{\textpm}\&nbsp;10,38\&nbsp;vs 43,98\&nbsp;{\textpm}\&nbsp;10,25\&nbsp;kg,\&nbsp;p\&nbsp;=\&nbsp;0,08), mais une perte tr{\`e}s significative de la graisse visc{\'e}rale (passant de 11,77\&nbsp;{\textpm}\&nbsp;3,37\&nbsp;{\`a} 11,36\&nbsp;{\textpm}\&nbsp;3,35\&nbsp;;\&nbsp;p\&nbsp;=\&nbsp;0,005) et une l{\'e}g{\`e}re diminution de la masse maigre (passant de 51,56\&nbsp;{\textpm}\&nbsp;5,64\&nbsp;{\`a} 50,61\&nbsp;{\textpm}\&nbsp;6,2\&nbsp;kg\&nbsp;p\&nbsp;=\&nbsp;0,003). On a pu constater une am{\'e}lioration significative du\&nbsp;V.\&nbsp;O2max (16,11\&nbsp;{\textpm}\&nbsp;3,04\&nbsp;vs 14,40\&nbsp;{\textpm}\&nbsp;4,46\&nbsp;mL/kg/mn,\&nbsp;p\&nbsp;=\&nbsp;0,001). Ce protocole peut donc {\^e}tre propos{\'e} afin d{\textquoteright}initier une diminution du poids chez des sujets ob{\`e}ses.



	Summary



	Aims



	This study wants to assess the effects of training in the LIPOXmax zone on the anthropometric, impedancemetric and cardiorespiratory parameters in middle-age obese women.



	Method and material



	Sixty-one obese women (BMI\&nbsp;>=\&nbsp;30\&nbsp;kg/m2) participated in the individualized training protocol in the LIPOXmax zone (40{\textendash}50\% of measured peak\&nbsp;V.\&nbsp;O2) performed on Ergocycle. The protocol spanned three weeks three times a week. Each session lasts 60\&nbsp;mn. Weight, BMI and body composition were assessed before and after training. Cardiorespiratory capacities ([peak\&nbsp;V.\&nbsp;O2], HRmax, Energy Expenditure [EE] and Mets), obtained following a maximum effort test (HRmax measured\&nbsp;>=\&nbsp;90\% predicted value), were evaluated before and after training.



	Results



	The individualized training protocol in the LIPOXmax zone allowed changes in both weight, BMI, body composition and cardiorespiratory functions. Total weight and BMI decreased significantly (weight 92.97\&nbsp;{\textpm}\&nbsp;15.46 vs. 95.02\&nbsp;{\textpm}\&nbsp;15\&nbsp;kg,\&nbsp;P\&nbsp;=\&nbsp;0.001) (BMI 37.58\&nbsp;{\textpm}\&nbsp;5.86 vs. 38.66\&nbsp;{\textpm}\&nbsp;5.9\&nbsp;kg/m2,\&nbsp;P\&nbsp;=\&nbsp;0.002). There is an insignificant decrease in body fat (42.78\&nbsp;{\textpm}\&nbsp;10.38 vs. 43.98\&nbsp;{\textpm}\&nbsp;10.25\&nbsp;kg,\&nbsp;P\&nbsp;=\&nbsp;0.08) with a significant loss of visceral fat (from 11.77\&nbsp;{\textpm}\&nbsp;3.37 to 11.36\&nbsp;{\textpm}\&nbsp;3.35\&nbsp;;\&nbsp;P\&nbsp;=\&nbsp;0.005) and a slight decrease in fat-free mass (from 51.56\&nbsp;{\textpm}\&nbsp;5.64 to 50.61\&nbsp;{\textpm}\&nbsp;6.2\&nbsp;kg;\&nbsp;P\&nbsp;=\&nbsp;0.003). There was a significant improvement in peak\&nbsp;V.\&nbsp;O2\&nbsp;(16.11\&nbsp;{\textpm}\&nbsp;3.04 vs. 14.40\&nbsp;{\textpm}\&nbsp;4.46\&nbsp;mL/kg/mn,\&nbsp;P\&nbsp;=\&nbsp;0.001). This protocol can thus be proposed in order to initiate a weight loss in obese subjects.



	Mots cl{\'e}s: Ob{\'e}sit{\'e}, LIPOXmax, R{\'e}entra{\^\i}nement, V O2max



	Keywords:Obesity,LIPOXmax,Training,Peak V̇ O2

},
	url = {https://doi.org/10.1016/j.scispo.2020.05.003},
	author = {Mohamed Ridha Guedjati}
}
