Justified Concerns? An Exploration of the Leg Tuck in a Tactical Population

Lockie, Robert G.; Orr, Rob Marc; Dawes, James

doi:10.3390/ijerph192113918

Cited by 6 publications

(24 citation statements)

References 51 publications

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“…What could influence these data are the between-sex differences in upper-body strength (10) and body composition (22) that have been documented in the literature. This is supported by Lockie et al (17) who found male firefighter trainees completed more leg tucks (∼13 repetitions) than females (∼6 repetitions). Lockie et al (17) noted the importance of upper-body pulling strength for this task by identifying a significant relationship between the pull-up and leg tuck ( r = 0.749).…”

Section: Introductionsupporting

confidence: 57%

“…Lockie et al (17) noted the importance of upper-body pulling strength for this task by identifying a significant relationship between the pull-up and leg tuck ( r = 0.749). In addition, grip strength, an indicator of total-body strength (30), has been suggested as being important for the leg tuck, given the need to support one's body mass while gripping the bar (17).…”

Section: Introductionmentioning

confidence: 99%

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A Research Note Investigating the Leg Tuck and Plank With Potential Impacts for Occupational Testing

Gonzalez,

Withrow,

Rubin

et al. 2023

Journal of Strength and Conditioning Research

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Gonzalez, SM, Withrow, KL, Rubin, DA, Lynn, SK, Dawes, JJ, Orr, RM, and Lockie, RG. A research note investigating the leg tuck and plank with potential impacts for occupational testing. J Strength Cond Res 37(10): 2076–2079, 2023—The U.S. Army recently replaced the leg tuck with the plank in their physical ability testing. There has been limited analysis of whether these 2 tests correlate, have any relationships with body composition and strength, or are sex-neutral. Forty-nine civilian college students (28 males, 21 females) were recruited as surrogates for tactical personnel. The following were measured: height, body mass, body fat percentage (BF%), and muscle mass percentage (MM%) measured through bioelectrical impedance analysis, grip strength, leg tuck, and plank. Independent t-tests were calculated to determine between-sex differences for all variables (p < 0.05). Partial correlations controlling for sex were used to compute relationships between the leg tuck, plank, and other variables. Stepwise regression controlling for sex derived predictive relationships for the leg tuck and plank. Males were taller, had greater body mass, MM%, and were superior in grip strength and the leg tuck; females had greater BF%. There were no significant between-sex differences for the plank. The leg tuck correlated with BF%, MM%, grip strength, and the plank (r = ±0.333–0.524). In addition to the leg tuck, the plank correlated with BF% (r = −0.288). The leg tuck was predicted by sex, grip strength, and the plank (adjusted r 2 = 0.662). No variables predicted the plank. As there were no between-sex differences and sex was not a plank predictor, it appears this test minimized sex differences on task performance in civilians. However, the leg tuck and plank likely measure different qualities; further research is needed on job task relationships.

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Section: Introductionsupporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

A Research Note Investigating the Leg Tuck and Plank With Potential Impacts for Occupational Testing

Gonzalez,

Withrow,

Rubin

et al. 2023

Journal of Strength and Conditioning Research

Self Cite

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“…Because female soldiers were the primary group failing the leg tuck (more than 70% of enlisted women), Hardison et al [ 19 ] further stated that the leg tuck did not accurately measure their trunk strength because it also required upper body strength. This statement is partially supported by Lockie et al [ 51 ], who documented the significant relationship between the leg tucks and pull-ups ( r = 0.790, p < 0.001) in firefighters. Lockie et al [ 51 ], also showed large sex difference in leg tuck performance between male (12.64 ± 5.49 repetitions) and female (5.90 ± 5.01 repetitions) firefighters.…”

Section: Discussionmentioning

confidence: 53%

“…This statement is partially supported by Lockie et al [ 51 ], who documented the significant relationship between the leg tucks and pull-ups ( r = 0.790, p < 0.001) in firefighters. Lockie et al [ 51 ], also showed large sex difference in leg tuck performance between male (12.64 ± 5.49 repetitions) and female (5.90 ± 5.01 repetitions) firefighters. However, data from the present study show that performance in the leg tuck was strongly related with performance in the TFM, an essential combat task.…”

Section: Discussionmentioning

confidence: 53%

“…Recent research on the leg tuck performance in firefighters demonstrated that sex, pull-ups, and push-ups predicted 66.8% of the variance in the number of repetitions performed, with pull-ups being the largest contributor [ 51 ]. Considering this, work by Robinson et al [ 46 ] and Orr et al [ 52 ] found that, of all the strength measures assessed (deadlift, squat, bench press, and loaded pull ups), pull-ups was the strength metric that had the strongest relationship to load carriage performance in specialist police covering 5 km with a 25-kg pack ( r = −0.452, p < 0.05) and 5 km with a 40-kg load ( r = −0.356, p < 0.05), respectively.…”

Section: Discussionmentioning

confidence: 99%

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Army Combat Fitness Test Relationships to Tactical Foot March Performance in Reserve Officers’ Training Corps Cadets

Withrow

Rubin

Dawes

et al. 2023

Biology

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The Army Combat Fitness Test (ACFT), consisting of deadlift, standing power throw, hand release push-up, sprint-drag-carry, leg tuck or plank, and 2-mile run, is the United States Army’s new fitness test. The ACFT is designed to measure multiple fitness components required to perform combat tasks. One critical task is the tactical foot march (TFM), where soldiers cover long distances while carrying loads comprised of mission-essential equipment. As the ACFT is meant to predict soldier task performance, determining the relationships between the ACFT and the TFM is important. Data from 29 cadets (♂ = 20, ♀ = 9) from one university Reserve Officers’ Training Corps program were analyzed. The ACFT was recorded in raw and scaled scores. The TFM was performed over 6.44 km, with time recorded. Cadets carried a 15.88-kg rucksack, fighting load carrier, 3-L hydration pack, and replica M4 carbine. Independent samples t-tests evaluated ACFT and TFM between-sex differences. Partial correlations, controlling for sex, determined ACFT event and TFM relationships. Male cadets outperformed females in all ACFT tasks (p ≤ 0.039), except the push-up. ACFT total score, leg tuck, 2-mile run, and sprint-drag-carry showed large correlations with the TFM (r = ±0.463–0.531, p ≤ 0.026). Aerobic and anaerobic capacity and upper body/trunk strength were important fitness components for cadet TFM performance.

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Relationships Between Anthropometric Measures and Body Composition With Individual ACFT Event Performance Among Army Reserve Officers' Training Corps Cadets

Thompson,

Lawson,

Orr

et al. 2023

Journal of Strength &Amp; Conditioning Research

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Thompson, MB, Lawson, DJ, Orr, RM, Lockie, RG, and Dawes, JJ. Relationships between anthropometric measures and body composition with individual ACFT event performance among army reserve officers' training corps cadets. J Strength Cond Res XX(X): 000–000, 2023—The U.S. military commonly uses body composition as an indicator of a soldier's potential to meet the physical demands required of their occupation. The purpose of this study was to determine whether significant relationships existed between select body composition variables and Army Combat Fitness Test (ACFT) performance among a cohort of university Army Reserve Officers' Training Corps (ROTC) cadets. Twenty-six male (20.4 ± 1.6 years, 81.8 ± 8.5 kg, 178.3 ± 7.8 cm) and 12 female (19.9 ± 1.4 years, 64.2 ± 6.7 kg, 161.9 ± 4.9 cm) cadets voluntarily participated in this study. Body composition was measured using bioelectrical impedance analysis, and ACFT event scores were recorded by the cadre using the U.S. Army standard protocol and provided to the investigators. Pearson's correlations were used to identify relationships between body composition variables and ACFT event performance with an alpha level of p ≤ 0.05. Moderate to strong relationships were observed between total body water, dry lean mass, lean body mass, skeletal muscle mass, body fat mass (FM), and body fat percentage and all event scores for the sample as a whole. Body mass index showed weak to moderate significant positive relationships with hand-release push-up and maximum hexagonal bar deadlift in the sample as a whole. No relationships were observed in the men of this sample. All body composition variables showed moderate, nonsignificant relationships with at least 1 ACFT event within the women of this sample. Considering the findings of this study, a multitude of variables could be useful to assess ROTC cadets as predictors for ACFT performance. Reserve Officers' Training Corps programs should emphasize attaining and maintaining functional lean mass, whereas reducing nonfunctional body mass (i.e., excess FM) among cadets to enhance health and performance across the occupational life span.

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Justified Concerns? An Exploration of the Leg Tuck in a Tactical Population

Cited by 6 publications

References 51 publications

A Research Note Investigating the Leg Tuck and Plank With Potential Impacts for Occupational Testing

A Research Note Investigating the Leg Tuck and Plank With Potential Impacts for Occupational Testing

Army Combat Fitness Test Relationships to Tactical Foot March Performance in Reserve Officers’ Training Corps Cadets

Relationships Between Anthropometric Measures and Body Composition With Individual ACFT Event Performance Among Army Reserve Officers' Training Corps Cadets

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