back extensor muscles’ endurance in young, middle-aged and
Chidozie E. Mbada2
department, College of medicine, University of Ibadan, Nigeria.
of Medical Rehabilitation, College of Health Sciences, Obafemi Awolowo
The potential influence of age on endurance test results of the back
extensors remains debated. There is also a dearth of studies on back
muscle endurance testing from Sub-Sahara Africa. This study examined
the differences in static endurance capacity of young, middle-aged and
older adult Nigerians.
extensors endurance was assessed using the Sørensen test.
Height and weight were measured using standard procedures. Percentage
body fat was estimated using a bioelectrical impedance analysis
machine. Body mass index and lean body mass and body fat mass were
Results: Endurance time was
inversely correlated with age for all the participants (r = -0.562; p =
0.000) without gender bias. Significant difference (F = 94.556; p =
0.000) was found in the endurance time among the young, middle-aged and
older adults categories. The results suggested that the significant age
and anthropometric difference between the different age classifications
could contribute to the endurance differences.
Compared to younger adults the older individuals exhibited decreased
muscular endurance without gender bias. Middle-aged men had significant
higher static back endurance than their women counterparts. We conclude
that age is a major factor affecting an individual’s physical
performance capacity of the back muscles.
extensor muscles, Sørensen test, static endurance, nigerian