Biology subjects

DeBeliso, M.

Publications and source records attributed to DeBeliso, M..

2 recordsLinked to original sources

bioRxiv2021

The Relationship Between Soldier Height, Weight and Army Combat Fitness Scores

The United States Army recently implemented the Army Combat Fitness Test (ACFT) which was designed to more accurately measure functional-combat fitness constructs. The ACFT replaced the former Army Physical Fitness Test (APFT). The three advent APFT consisted of: two-minute push-ups (PU), two-minute sit-ups (SU), and a timed two-mile run (RUN). The ACFT consists of six events; 3 Rep Max Deadlift (MDL), Standing Power Throw (SPT), Hand Release Push-up (HRP), Sprint-Drag-Carry (SDC), Hanging Leg Tuck (LTK), and a timed two-mile run (2MR). This study investigated the relationship between Soldier height (1.79{+/-}0.07 m) and weight (body mass 86.8{+/-}14.2 kg, BMI 27.1{+/-}3.9) on ACFT scores (442.3{+/-}54.4) of 655 male U.S. Army National Guard Soldiers in a Field Artillery Brigade. For the purpose of the investigation body mass index (BMI) was calculated as the metric representing the Soldiers height and weight. The mean and standard deviation (sd) were calculated for the ACFT event and total scores. Pearson correlation coefficients (PCCs or r) were calculated between BMI and ACFT event and total scores. Likewise, PCCs were calculated between the ACFT event and total scores. The ACFT mean{+/-}sd scores were as follows: MDL=92.2{+/-}31.8 (3 maximum repetitions), SPT=9.5{+/-}2.2 (meters), HRP=24.6{+/-}13.1 (repetitions), SDC=119.8{+/-}21.7 (seconds), LTK=6.2{+/-}5.4 (repetitions), 2MR=1095.0{+/-}233.7 (seconds), ACFT total score=442.3{+/-}54.4 (points). Significant positive correlations were found between the ACFT total score: MDL (r=0.70), SPT (r=0.50), HRP (r=0.74), and LTK (r=0.76) events. Conversely, significant negative correlations were identified between ACFT total score: SDC (r=-0.68) and 2MR (r=-0.53) events. Within the parameters of this study, Soldier BMI demonstrated "no to weak" association with individual ACFT event or ACFT total scores. Further, the range of PCCs between the ACFT event scores were "no to moderately high". Military leaders may consider the results provided as combat and fitness tests continue to evolve.

physiology↗

bioRxiv2021

Establishing Normative Reference Values for the Utah Seated Medicine Ball Throw Protocol in Adolescents

The seated medicine ball throw (SMBT) is a field test intended to assess upper-body muscular power by measuring the maximal distance an individual can throw a medicine ball from an isolated, seated position (25). The SMBT has been used to assess upper-body power in various populations and to establish concurrent validity for other measures of upper-body power such as the bench press power test and the plyometric push-up. The SMBT is less costly and simpler to incorporate into a field test battery than other upper body power assessments. While the SMBT is a valid, reliable field test for upper-body power, normative reference standards for most populations, including adolescent (12-15 years old) physical education students, do not exist. PurposeThis study reports distances thrown in the SMBT to establish normative reference values in male and female physical education students, ages 12-15 years old. MethodsOne hundred thirteen untrained male and female physical education students aged 12-15 years performed the SMBT field test three times on a single testing day. Participants threw a 2kg medicine ball with a 19.5 cm diameter while seated at a 90{degrees} after recording height, body mass, and BMI. ResultsParticipant data was separated by age gender for analysis. Mean and standard deviation for the SMBT for males was 4.3{+/-}0.7m and 5.2{+/-}0.8 m for ages 12-13 and 14-15, respectively, and for females was 3.4{+/-}0.5m and 3.7{+/-}0.5m for ages 12-13 and 14-15, respectively. Pearson correlation coefficients for between-trials comparisons for males and females ranged from r=0.85-0.97. Pearson correlation coefficients for average SMBT and age of participants was r=0.93. Normative reference values as percentile ranks for the SMBT scores for age groups 12-13 and 14-15 among males and females, respectively, were also established. ConclusionThe data presented provides an initial set of normative reference standards for coaches and students to determine upper-body muscular power using the SMBT.

scientific communication and education↗