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Does Self-efficacy Predict Outcomes Among U.S. Military Academy Cadets During Initial Entry Training?

Does Self-efficacy Predict Outcomes Among U.S. Military Academy Cadets During Initial Entry Training?

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05453110
Enrollment
903
Registered
2022-07-12
Start date
2022-07-04
Completion date
2023-06-08
Last updated
2025-11-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Low Back Pain, Musculoskeletal Injury

Keywords

Nocebo, Self-Efficacy

Brief summary

Background: Lower back injuries are a common occurrence in athletes, sports programs, and in the military (Bengtsson, 2018; Lovalekar, 2021). The Army's new fitness test includes a three-repetition maximum deadlift, and this inclusion has raised concern amongst servicemembers and healthcare workers due to the association between deadlifts and lower back injuries. There is debate amongst researchers about the role of deadlift form in lower back injury prevention, specifically related to flexion of the spine (Sjoberg, 2020). Purpose: The purpose of this study is to investigate the effect of low back pain education (either cautionary regarding injury risk or reassuring regarding spine resiliency) on deadlift performance (weight lifted), and if this education has an effect on self-efficacy and perceived spine vulnerability. Participants: Participants will be incoming new cadets at the United States Military Academy (USMA). Inclusion criteria are cadets age 17-26 (cadets under the age of 18 are legally emancipated therefore able to consent), those participating in the ACFT, and speak and understand English. Study Design: This study will be a randomized controlled trial with parallel design and 1:1 allocation ratio. The investigators plan to use cluster randomization. There will be three groups- control, cautionary, reassuring (Jackson, 2005). The investigators are also planning a prospective cohort study to assess self-efficacy, injury, and performance over time. Procedures: Data will be collected at the United States Military Academy during the summer of 2022 during cadet basic training. Shortly after new cadets arrive at USMA, the investigators will gather demographic and initial self-efficacy information. The randomized control element of this study will occur before and during the maximum deadlift (MDL) of the Army Combat Fitness Test (ACFT). At the start of cadet basic training, investigators will randomly allocate each company of cadets into one of three groups (three companies per group.) The investigator will administer the education (cautionary, reassuring, or control) shortly prior to cadets taking the MDL, and will collect results after the ACFT. The cautionary education is similar to standard information provided to many servicemembers before the start of an ACFT or a maximum deadlift.

Detailed description

Background: Musculoskeletal injuries (MSKIs) are the leading cause of nondeployability, lost duty days (LDD), medical encounters, military discharge, and disability in the United States Military. (Lovalekar, 2021). Ironically, the leading causes of MSKIs are same activities that leaders deliberately conduct to develop physical resilience: running, foot marching, other physical fitness training activities (besides running) and work-related tasks (Lovalekar, 2021). Purpose: The purpose of this study is to learn about relationships between self-efficacy, injury and physical/tactical performance. The investigators also plan to assess the effect of low back pain education (either cautionary regarding injury risk or reassuring regarding spine resiliency) on deadlift performance (weight lifted), and if this education has an effect on self-efficacy and perceived spine vulnerability. Participants: Participants will be incoming new cadets at the United States Military Academy (USMA). Inclusion criteria are cadets age 17-26 (cadets under the age of 18 are legally emancipated therefore able to consent), those participating in the ACFT, and speak and understand English. Study Design: This study will be a randomized controlled trial with parallel design and 1:1 allocation ratio. The investigators plan to use cluster randomization. There will be three groups- control, cautionary, reassuring (Jackson, 2005). The investigators are also planning a prospective cohort study to assess self-efficacy, injury, and performance over time. Procedures: Data will be collected at the United States Military Academy during the summer of 2022 during cadet basic training. Shortly after new cadets arrive at USMA, the investigators will gather demographic and initial self-efficacy information. The randomized control element of this study will occur before and during the maximum deadlift (MDL) of the Army Combat Fitness Test (ACFT). At the start of cadet basic training, researchers will randomly allocate each company of cadets into one of three groups (three companies per group.) The researchers will administer the education (cautionary, reassuring, or control) shortly prior to cadets taking the MDL, and will collect results after the ACFT. The cautionary education is similar to standard information provided to many servicemembers before the start of an ACFT or a maximum deadlift.

Interventions

BEHAVIORALDeadlift Form Education

The education will include information about the lumbar spine as it relates to a deadlift. The researchers will administer this education shortly prior to participants taking a strength test.

Sponsors

Keller Army Community Hospital
Lead SponsorFED

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Intervention model description

Group Between-Factor, Randomized Controlled Trial

Eligibility

Sex/Gender
ALL
Age
17 Years to 26 Years
Healthy volunteers
Yes

Inclusion criteria

* All incoming US Military Academy cadets, attending cadet basic training in summer 2022.

Exclusion criteria

* Unable to communicate in English; unable to participate in deadlift event.

Design outcomes

Primary

MeasureTime frameDescription
Maximum Deadlift Weight LiftedFollowing the intervention. This event/data collection took place at a single time point immediately following the intervention, up to 30 minutesWeight lifted for three repetitions
Perceived Spine Vulnerability, Q1Immediately after the interventionEase of which participants believe the back can be injured, it is easy to injure your back. Questions based on Back Pain Attitude Questionnaire, item 6. Count reflects the number of participants who selected true
Perceived Spine Vulnerability, Q2Immediately after the interventionEase of which participants believe the back can be injured, you could injure your back if you are not careful. Questions based on Back Pain Attitude Questionnaire, item 11. Count reflects the number of participants who selected true

Secondary

MeasureTime frameDescription
Deadlift Self-Efficacy QuestionnaireOutcome data was collected immediately following the interventionSelf-efficacy related to the deadlift was gathered by a single numeric rating scale question. Participants were asked to rate their confidence in succeeding at the deadlift event, from not confident at all - 0 to fully confident - 10).

Countries

United States

Participant flow

Pre-assignment details

903 new cadets consented to the study and signed informed consent forms. 18 of them were separated from the academy before data collection, and 64 were injured prior to data collection and did not take the fitness test. Of the 64 participants who were injured, 16 received the intervention but did not take the fitness test, thus we did not collect primary outcome data. This resulted in 837 who received the intervention. There were 821 participants who were included in the final analysis.

Participants by arm

ArmCount
Cautionary
The group will receive a message regarding potential risk for spine injury before the tested task. Deadlift Form Education: The education will include information about the lumbar spine as it relates to a deadlift. The researchers will administer this education shortly prior to participants taking a strength test.
293
Reassuring
This group will receive a message regarding spine resiliency before the tested task. Deadlift Form Education: The education will include information about the lumbar spine as it relates to a deadlift. The researchers will administer this education shortly prior to participants taking a strength test.
298
Control
This group will not receive education before the tested task.
312
Total903

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyReceived intervention but did not complete primary outcome measure556

Baseline characteristics

CharacteristicControlTotalCautionaryReassuring
Age, Continuous18.3 years
STANDARD_DEVIATION 0.9
18.3 years
STANDARD_DEVIATION 0.9
18.3 years
STANDARD_DEVIATION 1
18.2 years
STANDARD_DEVIATION 0.9
Intercollegiate Athlete96 Participants286 Participants101 Participants89 Participants
Prior history of deadlift-related low back pain49 Participants116 Participants30 Participants37 Participants
Prior Military Service54 Participants153 Participants52 Participants47 Participants
Race and Ethnicity Not Collected0 Participants
Sex: Female, Male
Female
73 Participants198 Participants62 Participants63 Participants
Sex: Female, Male
Male
239 Participants705 Participants231 Participants235 Participants
Weight74.1 kilograms
STANDARD_DEVIATION 11.7
74.4 kilograms
STANDARD_DEVIATION 12.6
74.7 kilograms
STANDARD_DEVIATION 13.3
74.3 kilograms
STANDARD_DEVIATION 12.8

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 2690 / 2830 / 279
other
Total, other adverse events
0 / 2690 / 2830 / 285
serious
Total, serious adverse events
0 / 2690 / 2830 / 285

Outcome results

Primary

Maximum Deadlift Weight Lifted

Weight lifted for three repetitions

Time frame: Following the intervention. This event/data collection took place at a single time point immediately following the intervention, up to 30 minutes

Population: Includes only those who completed the primary outcome measure

ArmMeasureValue (MEAN)Dispersion
CautionaryMaximum Deadlift Weight Lifted117.2 kilogramsStandard Deviation 25.9
ReassuringMaximum Deadlift Weight Lifted115.9 kilogramsStandard Deviation 26.6
ControlMaximum Deadlift Weight Lifted119.0 kilogramsStandard Deviation 27.1
Primary

Perceived Spine Vulnerability, Q1

Ease of which participants believe the back can be injured, it is easy to injure your back. Questions based on Back Pain Attitude Questionnaire, item 6. Count reflects the number of participants who selected true

Time frame: Immediately after the intervention

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
CautionaryPerceived Spine Vulnerability, Q1153 Participants
ReassuringPerceived Spine Vulnerability, Q1136 Participants
ControlPerceived Spine Vulnerability, Q1114 Participants
Primary

Perceived Spine Vulnerability, Q2

Ease of which participants believe the back can be injured, you could injure your back if you are not careful. Questions based on Back Pain Attitude Questionnaire, item 11. Count reflects the number of participants who selected true

Time frame: Immediately after the intervention

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
CautionaryPerceived Spine Vulnerability, Q2242 Participants
ReassuringPerceived Spine Vulnerability, Q2251 Participants
ControlPerceived Spine Vulnerability, Q2227 Participants
Secondary

Deadlift Self-Efficacy Questionnaire

Self-efficacy related to the deadlift was gathered by a single numeric rating scale question. Participants were asked to rate their confidence in succeeding at the deadlift event, from not confident at all - 0 to fully confident - 10).

Time frame: Outcome data was collected immediately following the intervention

ArmMeasureValue (MEDIAN)
CautionaryDeadlift Self-Efficacy Questionnaire10 score on a scale
ReassuringDeadlift Self-Efficacy Questionnaire10 score on a scale
ControlDeadlift Self-Efficacy Questionnaire9 score on a scale

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026