Mental Effort During Low Load Resistance Training in Older Adults
2026년 7월 6일 업데이트: Garrett Hester, Kennesaw State University
The Effect of Maximal Mental Effort During Resistance Training on Physical Function and Motor Unit Behavior in Older Adults
The goal of this clinical trial is to determine the effect of maximal mental effort combined with low-intensity resistance training on strength and neuromuscular function in older adults. The main questions it aims to answer are:
- Does low-intensity resistance training in combination with maximal mental effort increase strength more than low intensity resistance training alone?
- Does low-intensity resistance training in combination with maximal mental effort improve neuromuscular function more than low intensity resistance training alone?
Participants will be randomly assigned to 1 of 3 groups:
- Low intensity resistance training
- Low intensity resistance training with maximal mental effort
- Control Researchers will compare groups to determine differences in changes in strength, neuromuscular function, and body composition.
연구 개요
상태
상태
모병
정황
정황
개입 / 치료
개입 / 치료
상세 설명
Participants in both training groups will perform 8 weeks of low intensity, whole-body resistance training. Participants in the control group will participate in all testing procedures but not perform any training. Participants from all groups will be instructed to otherwise maintain their normal physical activity levels and dietary habits.
All training sessions will be supervised by research personnel at a Kennesaw State University fitness center. Participants will complete 2 training sessions per week for 8 weeks. Each training session will last about 45-60 minutes and consist of 5 exercises, including both multi-joint (leg press, chest press, back row) and single-joint (knee extension, bicep curl) exercises. Participants will perform 2 sets of 15 repetitions for each exercise for the first 2 weeks, then volume will be increased by progressing to 3 sets for the remaining 6 weeks. There will be a 60-second rest interval between sets and a similar tempo will be used between groups.
Both training groups will perform the same training protocol, but participants in the maximal mental effort group will mentally urge their muscles to contract maximally during each repetition. That is, despite using a low intensity, participants will imagine the feeling of maximal muscle contraction of the primary muscles during each repetition.
Several measures of strength, neuromuscular function, physical function, and body composition will be measured before and after the training or control period.
연구 유형
연구 유형
중재적
등록 (추정된)
등록
75
단계
단계
- 해당 없음
연락처 및 위치
이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.
연구 연락처
연구 연락처
- 이름: Garrett Hester Professor of Exercise Science
- 전화번호: 470-578-4267
- 이메일: ghester4@kennesaw.edu
연구 장소
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Georgia
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Kennesaw, Georgia, 미국, 30144
- 모병
- Kennesaw State University
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연락하다:
- Garrett Hester
- 전화번호: 470-578-4267
- 이메일: ghester4@kennesaw.edu
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참여기준
연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.
자격 기준
자격 기준
공부할 수 있는 나이
- 고령자
건강한 자원 봉사자를 받아들입니다
예
설명
Inclusion Criteria:
- Body mass index between 18.5 - 33 kg·m2
- No structured physical activity in past 2 years
- Any unstable condition contradicting exercise
- Independently walk with or without assistive device
- No significant cognitive impairment
Exclusion Criteria:
- Score of 22 or lower on Montreal Cognitive Assessment
- Missing more than 3 training sessions (training groups only)
- Pacemaker
- Unstable angina
- Symptomatic heart failure
- Uncontrolled arrythmias
- Uncontrolled hypertension (greater or equal to 160/90)
- Myocardial infarction in the past 6 months
- Uncontrolled type 2 diabetes
- Type 1 diabetes
- Severe or unstable pulmonary conditions,
- Currently on supplemental oxygen therapy
- Severe hearing loss or visual impairment
- Alzheimer's Disease or significant cognitive impairment
- Stroke in the past 6 months or ongoing stroke-induced motor impairment
- Any neurological (e.g., Parkinson's) condition affecting motor control
- Undergoing chemotherapy
- Surgery in past 6 months
- Musculoskeletal injury in the past 6 months
- Terminal illness
- Stage 3 or greater chronic kidney disease
공부 계획
이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 다른
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 하나의
팔의 수
3
무기와 개입
참가자 그룹 / 팔참가자 그룹 / 팔 |
개입 / 치료개입 / 치료 |
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간섭 없음: 제어
이 그룹은 어떠한 훈련도 수행하지 않으며 규칙적인 신체 활동 수준을 유지합니다.
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실험적: Low Intensity Resistance Training
This group will perform low intensity, whole-body resistance training.
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This training intervention will be 8 weeks of low intensity resistance training, including whole-body and isolated muscle exercises.
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실험적: Low Intensity Resistance Training with Maximal Mental Effort
This group will perform low intensity, whole-body resistance training with maximal mental effort during muscle contraction.
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This training intervention will be 8 weeks of low intensity resistance training, including whole-body and isolated muscle exercises, where participants will perform maximal mental effort by imagining maximal muscle contraction during each exercise.
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연구는 무엇을 측정합니까?
주요 결과 측정
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Change in isokinetic strength of the knee extensors at 60 degrees per second
기간: Baseline, Week 8
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Dynamic strength of the knee extensors contracting at a constant velocity
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Baseline, Week 8
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2차 결과 측정
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Change in isokinetic knee extensor muscle activation as measured by electromyography amplitude
기간: Baseline, Week 8
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Electromyography root mean square during isokinetic contraction divided by root mean square during isometric contraction
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Baseline, Week 8
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Change in isometric knee extensor strength as measured by newton-meters of torque
기간: Baseline, Week 8
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Isometric strength of a muscle
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Baseline, Week 8
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Change in knee extensor muscle activation as measured by electromyography amplitude
기간: Baseline, Week 8
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A measure of the capacity at which the muscle is activated by the nervous system
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Baseline, Week 8
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Change in motor unit firing rate as measured relative to the motor unit recruitment threshold
기간: Baseline, Week 8
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A measure of how nervous system input produces force output during an isometric contraction
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Baseline, Week 8
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Change in motor unit action potential size as measured relative to the motor unit recruitment threshold
기간: Baseline, Week 8
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A measure of how nervous system input produces force output during an isometric contraction
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Baseline, Week 8
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Change in handgrip strength as measured in kilograms of force
기간: Baseline, Week 8
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Upper-body strength as measured by a handgrip dynamometer
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Baseline, Week 8
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Change in walking speed as measured by time taken to walk 4 meters
기간: Baseline, Week 8
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Measure of lower-body physical function
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Baseline, Week 8
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Change in chair rise performance as measured by number of chair rises performed in 30 seconds
기간: Baseline, Week 8
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Measure of lower-body physical function
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Baseline, Week 8
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Change in bicep curl strength as measured by load lifted in pounds
기간: Baseline, Week 8
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Maximum dumbbell load lifted successfully throughout the range of motion of a bicep curl
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Baseline, Week 8
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Change in dynamic strength of the lower body muscles during the leg press as measured by load lifted in pounds for 5 repetitions
기간: Baseline, Week 5, Week 8
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Measure of dynamic strength during the leg press exercise
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Baseline, Week 5, Week 8
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Change in muscle composition as measured by ultrasound-derived grey-scale analysis
기간: Baseline, Week 8
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Echo-intensity value derived from grey-scale analysis is indicative of amount of non-contractile tissue in muscle
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Baseline, Week 8
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Change in skeletal muscle size as measured by ultrasound-derived cross-sectional area
기간: Baseline, Week 8
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Size of a muscle
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Baseline, Week 8
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Change in fat mass as measured by kilograms
기간: Baseline, Week 8
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Amount of fat tissue a person possesses estimated by bioelectrical impedance analysis
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Baseline, Week 8
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Change in fat-free mass as measured by kilograms
기간: Baseline, Week 8
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Amount of non-fat tissue a person possesses estimated by bioelectrical impedance analysis
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Baseline, Week 8
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Change in body fat percentage as measured by fat tissue relative to fat-free tissue
기간: Baseline, Week 8
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Relative amount of body fat a person possesses estimated by bioelectrical impedance analysis
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Baseline, Week 8
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Change in cognitive function as measured by the Montreal Cognitive Assessment
기간: Baseline, Week 8
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Assessment of cognitive function where 0 is the lowest score and 30 is the highest score and a higher score represents higher cognitive function.
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Baseline, Week 8
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공동 작업자 및 조사자
여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.
연구 기록 날짜
이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.
연구 주요 날짜
연구 시작 (실제)
연구 시작
2026년 6월 6일
기본 완료 (추정된)
기본 완료
2027년 12월 1일
연구 완료 (추정된)
연구 완료
2027년 12월 1일
연구 등록 날짜
최초 제출
최초 제출
2026년 6월 30일
QC 기준을 충족하는 최초 제출
QC 기준을 충족하는 최초 제출
2026년 6월 30일
처음 게시됨 (실제)
처음 게시됨
2026년 7월 7일
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
마지막 업데이트 게시됨
2026년 7월 8일
QC 기준을 충족하는 마지막 업데이트 제출
QC 기준을 충족하는 마지막 업데이트 제출
2026년 7월 6일
마지막으로 확인됨
마지막으로 확인됨
2026년 7월 1일
추가 정보
이 연구와 관련된 용어
기타 연구 ID 번호
기타 연구 ID 번호
- 2026-Hester
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
아니요
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
아니
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아니
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .