Optimal Values of Body Composition for the Lowest Risk of Failure in Tabata Training’s Effects in Adolescents: A Pilot Study

Table 1

Distribution of youth with positive and lack of positive changes in the physical efficiency index (PEI) by BMI intervals and FMI quartiles.

BMI intervals (kg/m^2)	Lack of PEI effect, (%)	Positive PEI effect, (%)	FMI quartiles ()	Lack of PEI effect, (%)	Positive PEI effect, (%)
≤19.00	3 (17.65)	14 (82.35)	Below	3 (15.79)	16 (84.21)
19.01-22.00	11 (29.73)	26 (70.27)		4 (23.53)	13 (76.47)
22.01-25.00	2 (16.67)	10 (83.33)		7 (36.84)	12 (63.16)
>25.00	3 (42.86)	4 (57.14)	Over	5 (27.78)	13 (72.22)

BMI: body mass index; FMI: fat mass index, : number; %: percentage; PEI: physical efficiency index; : between quartile and ; : between quartile and .