The Sit-Up test battery

Calculation of the energy expenditure




Biomechanics, Biomechanical model, Hip flexor, Youth people


Sit-Up tests have been involved to measure the abdominal strength and endurance of youth and elite players in training sessions and specific skill tests. This study was aimed at evaluating the fitness level of the muscular strength and endurance of the abdominal and hip-flexor muscles of youth people corresponding to the body segment parameters: height and weight. The test battery and biomechanical model of the dynamic movement of Sit-Up were designed. The 30s Sit-Up test was performed by youth people: n = 1373 male and n = 1160 female. The percentile method was used to distinguish the performance levels. The average numbers of Sit-Up of males and females are 17 (SD = 2.17) and 12 (SD = 1.98), respectively. University students (68), who have already tested their fitness levels (satisfactory level or above) of muscular strength and endurance of abdominal and hip-flexor muscles by the Euro-fit test, were selected to show the validity of the test battery. Nearly 90% of students were at the average level or above relevant to the new Sit-Up test battery. The biomechanical model described the main active muscles’ forces (Rectus Femoris: 0-900 N, Psoas 0-300 N, and Iliacus 0-295 N) and total mechanical energy expenditure (132.66 J: 70.72 J, 61.94 J concentric and eccentric movements, respectively; player: mass 67.5 kg and height 1.66 m) for any player. The new '30s Sit-Up test battery’ is affective to evaluate reliable fitness levels for muscular strength, endurance of abdominal and hip-flexor muscles of youth. The biomechanical model demonstrates the energy expenditure for anyone (EAvg = 0.317 + 0.002 Cal).


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The Sit-Up test battery: Calculation of the energy expenditure



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How to Cite

Arangala Witharanage, S. C. (2023). The Sit-Up test battery: Calculation of the energy expenditure. Journal of Human Sport and Exercise, 18(4), 954–963.