Refine
Has Fulltext
- yes (85)
Year of publication
Document Type
- Postprint (85) (remove)
Is part of the Bibliography
- yes (85)
Keywords
- exercise (4)
- muscle strength (4)
- Adaptive Force (3)
- Neuroenhancement (3)
- adolescents (3)
- depression (3)
- inflammation (3)
- maximal isometric Adaptive Force (3)
- resistance training (3)
- Prevention (2)
- children (2)
- gait (2)
- holding capacity (2)
- low back pain (2)
- motor control (2)
- muscle power (2)
- neuromuscular control (2)
- physical fitness (2)
- prevalence (2)
- stress (2)
- youth sports (2)
- 24 h recall (1)
- 3D tissue model (1)
- Acceleration (1)
- Accelerometer (1)
- Alzheimers disease (1)
- Ankle sprain (1)
- Ankles (1)
- App (1)
- Artificial intelligence (1)
- Athlete testing (1)
- BDNF (1)
- BIAT (1)
- Body composition (1)
- CHOP (1)
- Children (1)
- Chronic back pain (1)
- Cognitive interference (1)
- Computer Software (1)
- Conditioning activity (1)
- Countermovement jump (1)
- Defensive actions (1)
- ECG (1)
- EEG/ERP (1)
- EMG (1)
- Education (1)
- Ego-depletion (1)
- Electromyography (1)
- Field test (1)
- Functional ankle instability (1)
- GADD153 (1)
- GRP78 (1)
- Gait (1)
- HIV (1)
- Hip (1)
- IL-6 (1)
- Income (1)
- Indicators of socioeconomic status, Health inequality (1)
- Injury (1)
- Job Demands Resources Theory (1)
- Job position (1)
- Jugendliche (1)
- Kick (1)
- Kinder (1)
- Kinematics (1)
- Knees (1)
- Legs (1)
- Linear regression analysis (1)
- Lower-extremity muscle power (1)
- MMA (1)
- Martial arts (1)
- Maximalkraft (1)
- Metabolic syndrome (1)
- MiSpEx (1)
- Mobile diagnostics (1)
- Motion (1)
- Muscle mass (1)
- Musculoskeletal injury (1)
- Nutrition (1)
- Orthopedics (1)
- Pain occurrence (1)
- Pathologies (1)
- Pavlovian-to-instrumental transfer (1)
- Physical activity (1)
- Physical fitness (1)
- Postural stability (1)
- Principal component analysis (1)
- Punch (1)
- Quality-of-life (1)
- RGB-D cameras (1)
- RPE (1)
- Resistance training (1)
- Rural health (1)
- Scanning electron microscopy (1)
- Schnellkraft (1)
- Self-control (1)
- Short‐term effect (1)
- Skeletal joints (1)
- Socioeconomic status (1)
- Sport medicine (1)
- Sports injury (1)
- Squat jump (1)
- Team sports (1)
- Time-motion analysis (1)
- Training volume (1)
- Trunk muscle strength (1)
- Velocity (1)
- Walking (1)
- Widerstandstraining (1)
- Young athletes (1)
- Youth (1)
- activation (1)
- acute coronary event (1)
- acute coronary syndrome (1)
- adaptive force (1)
- addiction (1)
- adolescent (1)
- aerobic exercise (1)
- aerobic metabolism (1)
- affect (1)
- affective (1)
- affective priming (1)
- alcohol (1)
- allostatic load (1)
- allostatic load index (1)
- alternative rewards (1)
- amygdala (1)
- animal and computational models (1)
- anthropometry (1)
- antidepressants (1)
- aquaporin (1)
- assessment (1)
- association (1)
- associations (1)
- associative (1)
- athletic performance (1)
- autologous chondrocyte implantation (1)
- automatic evaluation (1)
- automatic evaluations (1)
- automatic processes (1)
- back pain diagnosis (1)
- barbell velocity (1)
- basic psychological need frustration (1)
- bibliometric analysis (1)
- biochemical profiles (1)
- biofabrication (1)
- biomechanical effect (1)
- biomechanical parameter (1)
- biomechanics (1)
- bioprinting (1)
- blood lactate (1)
- body-mass index (1)
- bodybuilding (1)
- bone remodeling (1)
- burnout (1)
- cardiac rehabilitation (1)
- cardiorespiratory fitness (1)
- cardiovascular magnetic resonance (1)
- caregivers (1)
- cartilage defect (1)
- cartilage repair (1)
- cell transplantation (1)
- change of direction speed (1)
- child (1)
- childhood obesity (1)
- cognitive control (1)
- cognitive impairment (1)
- cognitive-behavioral control (1)
- combat sports (1)
- communication (1)
- comorbidity (1)
- coronary angiography (1)
- coronary artery disease (1)
- coronary heart disease (1)
- cost-effectiveness (1)
- craving and relapse (1)
- deception (1)
- decision processes (1)
- degenerative disc disease (1)
- delayed onset muscle soreness (1)
- depressive disorder (1)
- depressive symptomatology (1)
- depressive symptoms (1)
- development (1)
- diabetic (1)
- diagnostic techniques and procedures (1)
- dietary intake (1)
- digital health (1)
- dimensional (1)
- dog (1)
- doping (1)
- doping attitude (1)
- doping tests (1)
- dropout (1)
- dual-process (1)
- dual-process models (1)
- eccentric (1)
- echo intensity (1)
- echocardiography (1)
- ego depletion (1)
- electroencephalography (EEG) (1)
- electromyography (1)
- electrospinning (1)
- elite athletes (1)
- emotional imagery (1)
- emotional valence (1)
- emotions (1)
- endoplasmic reticulum stress (1)
- endurance performance (1)
- evaluation (1)
- evaluative priming (1)
- exercise adherence (1)
- exercise induced muscle damage (1)
- exercise intensity (1)
- exercise intervention (1)
- exercise movement techniques (1)
- exercise test (1)
- exercise therapy (1)
- exercise treatment (1)
- eye-tracking (1)
- fMRI (1)
- faking (1)
- fatigue (1)
- female runner (1)
- fitness performance (1)
- flat feet (1)
- football (1)
- force (1)
- force profiles (1)
- forces (1)
- functional capacity (1)
- gait speed (1)
- general population (1)
- habit formation (1)
- hair cortisol (1)
- handheld device (1)
- health (1)
- health behavior (1)
- heart failure (1)
- high risk drinkers (1)
- holding (HIMA) and pushing (PIMA) isometric muscle action (1)
- holding capability (1)
- holding isometric muscle action (HIMA) (1)
- human motion (1)
- human physical conditioning (1)
- hyper-osmolarity (1)
- hypo-osmolarity (1)
- hypocortisolemic symptom triad (1)
- ill-being (1)
- implicit association test (IAT) (1)
- implicit attitude (1)
- implicit attitude test (IAT) (1)
- in vitro (1)
- indirect test (1)
- individualized intervention (1)
- inflammatory (1)
- injury mechanisms (1)
- injury symptom (1)
- instability (1)
- inter-brain synchronization (1)
- inter-muscle-brain synchronization (1)
- interleukin-6 (1)
- internleukin-10 (1)
- interpersonal muscle action (1)
- intervertebral disc (1)
- intervertebral disc degeneration (1)
- isokinetics (1)
- kinematics (1)
- kinetics (1)
- knee joint (1)
- lengthening contractions (1)
- load (1)
- loading rate (1)
- load–velocity relationship (1)
- long COVID (1)
- long-distance race car driving (1)
- long-term effects (1)
- longitudinal cohort (1)
- low back painExercise (1)
- lower limb mechanics (1)
- manual muscle test (1)
- manual muscle testing (1)
- maturation (1)
- mechanical tendinous oscillations (1)
- mechanomyography (MMG) (1)
- mechanotendography (1)
- meniscus (1)
- mental health (1)
- metaanalysis (1)
- methodology (1)
- microRNA (1)
- mobility disability (1)
- monetary incentive delay task (1)
- monitoring (1)
- motion capture (1)
- motivation (1)
- motor performance (1)
- motor-performance (1)
- multidisciplinary intervention (1)
- muscle (1)
- muscle fatigue (1)
- muscle function (1)
- muscle quality (1)
- muscle weakness (1)
- muscular endurance (1)
- muscular strength (1)
- music (1)
- music therapy (1)
- need satisfaction (1)
- negative life events (1)
- neural-control (1)
- neuromuscular adaptation (1)
- neuromuscular diagnostics (1)
- of-direction speed (1)
- oscillations (1)
- osmolarity (1)
- osmotic (1)
- osteoblast (1)
- osteoclast (1)
- overhead athlete (1)
- overuse injury (1)
- overweight children (1)
- oxidative stress (1)
- oxygen consumption (1)
- p38 MAPK (1)
- paediatric athlete (1)
- pain (1)
- pain screening (1)
- partner interdependence model (1)
- patient education (1)
- peak height velocity (1)
- performance (1)
- performance gains (1)
- periodization (1)
- phase angle (1)
- physical activity (1)
- physical conditioning human (1)
- physiological strain (1)
- piezo-based measurement system (1)
- pilot study (1)
- plantar pressure distribution (1)
- pleasant and unpleasant imagery (1)
- plyometric exercise (1)
- polygenic risk (1)
- polyurethane foam (1)
- positive life events (1)
- post COVID syndrome (1)
- post-activation potentiation (1)
- power training (1)
- pre-participation screening (1)
- preclinical testing (1)
- prepubescent children (1)
- primary care (1)
- primary school (1)
- principles (1)
- psychology (1)
- psychosocial moderators (1)
- pushing isometric muscle action (PIMA) (1)
- quality of life (1)
- randomized controlled-trial (1)
- reactive movement (1)
- real options (1)
- recovery (1)
- rehabilitation (1)
- repeated adaptive isometric–eccentric muscle action (1)
- repeated bout effect (1)
- reproducibility (1)
- research framework (1)
- reward system (1)
- risk factors (1)
- rotator cuff (1)
- rugby league players (1)
- school (1)
- school baseball players (1)
- scintigraphy (1)
- selection (1)
- sensorimotor training (1)
- shoulder joint (1)
- situated processes (1)
- skin (1)
- skin disease (1)
- somatic comorbidity (1)
- somatic variables (1)
- speed (1)
- steroid use (1)
- strength (1)
- strength training (1)
- strength vs. endurance athletes (1)
- stress types (1)
- stretch-shortening cycle (1)
- striking combat sports (1)
- stroke rehabilitation (1)
- students (1)
- study demands (1)
- sudden cardiac death (1)
- sustainability (1)
- synchronization (1)
- task failure (1)
- team sports (1)
- tendons (1)
- time (1)
- tonicity-responsive enhancer binding protein (1)
- training (1)
- training adaptation (1)
- training load (1)
- transient receptor potential channel (1)
- trunk muscles (1)
- tumor necrosis factor-α (1)
- unstable resistance training (1)
- unstable walkway (1)
- validation study (1)
- ventral striatum (1)
- walking (1)
- water pipe (1)
- water sports (1)
- wavelet coherence (1)
- wearable devices (1)
- weight lifting (1)
- weight training (1)
- whole-body vibratoin (1)
- work-rate distribution (1)
- yellow flags (1)
- young athletes (1)
- young male gymnast (1)
- young soccer players (1)
- youth (1)
- youth soccer (1)
Institute
- Department Sport- und Gesundheitswissenschaften (85) (remove)
Objective:
Depression and coronary heart disease (CHD) are highly comorbid conditions. Brain-derived neurotrophic factor (BDNF) plays an important role in cardiovascular processes. Depressed patients typically show decreased BDNF concentrations. We analysed the relationship between BDNF and depression in a sample of patients with CHD and additionally distinguished between cognitive-affective and somatic depression symptoms. We also investigated whether BDNF was associated with somatic comorbidity burden, acute coronary syndrome (ACS) or congestive heart failure (CHF).
Methods:
The following variables were assessed for 225 hospitalised patients with CHD: BDNF concentrations, depression [Patient Health Questionnaire-9 (PHQ-9)], somatic comorbidity (Charlson Comorbidity Index), CHF, ACS, platelet count, smoking status and antidepressant treatment.
Results:
Regression models revealed that BDNF was not associated with severity of depression. Although depressed patients (PHQ-9 score >7) had significantly lower BDNF concentrations compared to non-depressed patients (p = 0.04), this was not statistically significant after controlling for confounders (p = 0.15). Cognitive-affective symptoms and somatic comorbidity burden each closely missed a statistically significant association with BDNF concentrations (p = 0.08, p = 0.06, respectively). BDNF was reduced in patients with CHF (p = 0.02). There was no covariate-adjusted, significant association between BDNF and ACS.
Conclusion:
Serum BDNF concentrations are associated with cardiovascular dysfunction. Somatic comorbidities should be considered when investigating the relationship between depression and BDNF.
Real options are widely applied in strategic and operational decision-making, allowing for managerial flexibility in uncertaincontexts. Increased scholarly interest has led to an extensive but fragmented research landscape. We aim to measure andsystematize the research field quantitatively. To achieve this goal, we conduct bibliometric performance analyses and bibliographiccoupling analyses with an in-depth content review. The results of the performance analyses show an increasing interest in realoptions since the beginning of the 2000s and identify the most influential journals and authors. The science mappings reveal sixand seven research clusters over the last two decades. Based on an in-depth analysis of their themes, we develop a researchframework comprising antecedents, application areas, internal and external contingencies, and uncertainty resolution throughreal option valuation or reasoning. We identify several gaps in that framework, which we propose to tackle in future research.
We are glad to introduce the Second Journal Club of Volume Five, Second Issue. This edition is focused on relevant studies published in the last few years in the field of resistance training, chosen by our Editorial Board members and their colleagues. We hope to stimulate your curiosity in this field and to share with you the passion for the sport, seen also from the scientific point of view. The Editorial Board members wish you an inspiring lecture.
Background Recent shoulder injury prevention programs have utilized resistance exercises combined with different forms of instability, with the goal of eliciting functional adaptations and thereby reducing the risk of injury. However, it is still unknown how an unstable weight mass (UWM) affects the muscular activity of the shoulder stabilizers. Aim of the study was to assess neuromuscular activity of dynamic shoulder stabilizers under four conditions of stable and UWM during three shoulder exercises. It was hypothesized that a combined condition of weight with UWM would elicit greater activation due to the increased stabilization demand. Methods Sixteen participants (7 m/9 f) were included in this cross-sectional study and prepared with an EMG-setup for the: Mm. upper/lower trapezius (U.TA/L.TA), lateral deltoid (DE), latissimus dorsi (LD), serratus anterior (SA) and pectoralis major (PE). A maximal voluntary isometric contraction test (MVIC; 5 s.) was performed on an isokinetic dynamometer. Next, internal/external rotation (In/Ex), abduction/adduction (Ab/Ad) and diagonal flexion/extension (F/E) exercises (5 reps.) were performed with four custom-made-pipes representing different exercise conditions. First, the empty-pipe (P; 0.5 kg) and then, randomly ordered, water-filled-pipe (PW; 1 kg), weight-pipe (PG; 4.5 kg) and weight + water-filled-pipe (PWG; 4.5 kg), while EMG was recorded. Raw root-mean-square values (RMS) were normalized to MVIC (%MVIC). Differences between conditions for RMS%MVIC, scapular stabilizer (SR: U.TA/L.TA; U.TA/SA) and contraction (CR: concentric/eccentric) ratios were analyzed (paired t-test; p <= 0.05; Bonferroni adjusted alpha = 0.008). Results PWG showed significantly greater muscle activity for all exercises and all muscles except for PE compared to P and PW. Condition PG elicited muscular activity comparable to PWG (p > 0.008) with significantly lower activation of L.TA and SA in the In/Ex rotation. The SR ratio was significantly higher in PWG compared to P and PW. No significant differences were found for the CR ratio in all exercises and for all muscles. Conclusion Higher weight generated greater muscle activation whereas an UWM raised the neuromuscular activity, increasing the stabilization demands. Especially in the In/Ex rotation, an UWM increased the RMS%MVIC and SR ratio. This might improve training effects in shoulder prevention and rehabilitation programs.
In animals and humans, behavior can be influenced by irrelevant stimuli, a phenomenon called Pavlovian-to-instrumental transfer (PIT). In subjects with substance use disorder, PIT is even enhanced with functional activation in the nucleus accumbens (NAcc) and amygdala. While we observed enhanced behavioral and neural PIT effects in alcohol-dependent subjects, we here aimed to determine whether behavioral PIT is enhanced in young men with high-risk compared to low-risk drinking and subsequently related functional activation in an a-priori region of interest encompassing the NAcc and amygdala and related to polygenic risk for alcohol consumption. A representative sample of 18-year old men (n = 1937) was contacted: 445 were screened, 209 assessed: resulting in 191 valid behavioral, 139 imaging and 157 genetic datasets. None of the subjects fulfilled criteria for alcohol dependence according to the Diagnostic and Statistical Manual of Mental Disorders-IV-TextRevision (DSM-IV-TR). We measured how instrumental responding for rewards was influenced by background Pavlovian conditioned stimuli predicting action-independent rewards and losses. Behavioral PIT was enhanced in high-compared to low-risk drinkers (b = 0.09, SE = 0.03, z = 2.7, p < 0.009). Across all subjects, we observed PIT-related neural blood oxygen level-dependent (BOLD) signal in the right amygdala (t = 3.25, p(SVC) = 0.04, x = 26, y = -6, z = -12), but not in NAcc. The strength of the behavioral PIT effect was positively correlated with polygenic risk for alcohol consumption (r(s) = 0.17, p = 0.032). We conclude that behavioral PIT and polygenic risk for alcohol consumption might be a biomarker for a subclinical phenotype of risky alcohol consumption, even if no drug-related stimulus is present. The association between behavioral PIT effects and the amygdala might point to habitual processes related to out PIT task. In non-dependent young social drinkers, the amygdala rather than the NAcc is activated during PIT; possible different involvement in association with disease trajectory should be investigated in future studies.
Background: Habitual walking speed predicts many clinical conditions later in life, but it declines with age. However, which particular exercise intervention can minimize the age-related gait speed loss is unclear.
Purpose: Our objective was to determine the effects of strength, power, coordination, and multimodal exercise training on healthy old adults' habitual and fast gait speed.
Methods: We performed a computerized systematic literature search in PubMed and Web of Knowledge from January 1984 up to December 2014. Search terms included 'Resistance training', 'power training', 'coordination training', 'multimodal training', and 'gait speed (outcome term). Inclusion criteria were articles available in full text, publication period over past 30 years, human species, journal articles, clinical trials, randomized controlled trials, English as publication language, and subject age C65 years. The methodological quality of all eligible intervention studies was assessed using the Physiotherapy Evidence Database (PEDro) scale. We computed weighted average standardized mean differences of the intervention-induced adaptations in gait speed using a random-effects model and tested for overall and individual intervention effects relative to no-exercise controls.
Results: A total of 42 studies (mean PEDro score of 5.0 +/- 1.2) were included in the analyses (2495 healthy old adults; age 74.2 years [64.4-82.7]; body mass 69.9 +/- 4.9 kg, height 1.64 +/- 0.05 m, body mass index 26.4 +/- 1.9 kg/m(2), and gait speed 1.22 +/- 0.18 m/s). The search identified only one power training study, therefore the subsequent analyses focused only on the effects of resistance, coordination, and multimodal training on gait speed. The three types of intervention improved gait speed in the three experimental groups combined (n = 1297) by 0.10 m/s (+/- 0.12) or 8.4 % (+/- 9.7), with a large effect size (ES) of 0.84. Resistance (24 studies; n = 613; 0.11 m/s; 9.3 %; ES: 0.84), coordination (eight studies, n = 198; 0.09 m/s; 7.6 %; ES: 0.76), and multimodal training (19 studies; n = 486; 0.09 m/s; 8.4 %, ES: 0.86) increased gait speed statistically and similarly.
Conclusions: Commonly used exercise interventions can functionally and clinically increase habitual and fast gait speed and help slow the loss of gait speed or delay its onset.
The Adaptive Force (AF) reflects the neuromuscular capacity to adapt to external loads during holding muscle actions and is similar to motions in real life and sports. The maximal isometric AF (AFisomax) was considered to be the most relevant parameter and was assumed to have major importance regarding injury mechanisms and the development of musculoskeletal pain. The aim of this study was to investigate the behavior of different torque parameters over the course of 30 repeated maximal AF trials. In addition, maximal holding vs. maximal pushing isometric muscle actions were compared. A side consideration was the behavior of torques in the course of repeated AF actions when comparing strength and endurance athletes. The elbow flexors of n = 12 males (six strength/six endurance athletes, non-professionals) were measured 30 times (120 s rest) using a pneumatic device. Maximal voluntary isometric contraction (MVIC) was measured pre and post. MVIC, AFisomax, and AFmax (maximal torque of one AF measurement) were evaluated regarding different considerations and statistical tests. AFmax and AFisomax declined in the course of 30 trials [slope regression (mean ± standard deviation): AFmax = −0.323 ± 0.263; AFisomax = −0.45 ± 0.45]. The decline from start to end amounted to −12.8% ± 8.3% (p < 0.001) for AFmax and −25.41% ± 26.40% (p < 0.001) for AFisomax. AF parameters declined more in strength vs. endurance athletes. Thereby, strength athletes showed a rather stable decline for AFmax and a plateau formation for AFisomax after 15 trials. In contrast, endurance athletes reduced their AFmax, especially after the first five trials, and remained on a rather similar level for AFisomax. The maximum of AFisomax of all 30 trials amounted 67.67% ± 13.60% of MVIC (p < 0.001, n = 12), supporting the hypothesis of two types of isometric muscle action (holding vs. pushing). The findings provided the first data on the behavior of torque parameters after repeated isometric–eccentric actions and revealed further insights into neuromuscular control strategies. Additionally, they highlight the importance of investigating AF parameters in athletes based on the different behaviors compared to MVIC. This is assumed to be especially relevant regarding injury mechanisms.
Satisfaction and frustration of the needs for autonomy, competence, and relatedness, as assessed with the 24-item Basic Psychological Need Satisfaction and Frustration Scale (BPNSFS), have been found to be crucial indicators of individuals’ psychological health. To increase the usability of this scale within a clinical and health services research context, we aimed to validate a German short version (12 items) of this scale in individuals with depression including the examination of the relations from need frustration and need satisfaction to ill-being and quality of life (QOL). This cross-sectional study involved 344 adults diagnosed with depression (Mage (SD) = 47.5 years (11.1); 71.8% females). Confirmatory factor analyses indicated that the short version of the BPNSFS was not only reliable, but also fitted a six-factor structure (i.e., satisfaction/frustration X type of need). Subsequent structural equation modeling showed that need frustration related positively to indicators of ill-being and negatively to QOL. Surprisingly, need satisfaction did not predict differences in ill-being or QOL. The short form of the BPNSFS represents a practical instrument to measure need satisfaction and frustration in people with depression. Further, the results support recent evidence on the importance of especially need frustration in the prediction of psychopathology.
Exercise or not?
(2023)
Objective: Individuals’ decisions to engage in exercise are often the result of in-the-moment choices between exercise and a competing behavioral alternative. The purpose of this study was to investigate processes that occur in-the-moment (i.e., situated processes) when individuals are faced with the choice between exercise and a behavioral alternative during a computerized task. These were analyzed against the background of interindividual differences in individuals’ automatic valuation and controlled evaluation of exercise.
Method: In a behavioral alternatives task 101 participants were asked whether they would rather choose an exercise option or a behavioral alternative in 25 trials. Participants’ gaze behavior (first gaze and fixations) was recorded using eye-tracking. An exercise-specific affect misattribution procedure (AMP) was used to assess participants’ automatic valuation of exercise before the task. After the task, self-reported feelings towards exercise (controlled evaluation) and usual weekly exercise volume were assessed. Mixed effects models with random effects for subjects and trials were used for data analysis.
Results: Choosing exercise was positively correlated with individuals’ automatic valuation (r = 0.20, p = 0.05), controlled evaluation (r = 0.58, p < 0.001), and their weekly exercise volume (r = 0.43, p < 0.001). Participants showed no bias in their initial gaze or number of fixations towards the exercise or the non-exercise alternative. However, participants were 1.30 times more likely to fixate on the chosen alternative first and more frequently, but this gaze behavior was not related to individuals’ automatic valuation, controlled evaluation, or weekly exercise volume.
Conclusion: The results suggest that situated processes arising from defined behavioral alternatives may be independent of individuals’ general preferences. Despite one’s best general intention to exercise more, the choice of a non-exercise alternative behavior may seem more appealing in-the-moment and eventually be chosen. New psychological theories of health behavior change should therefore better consider the role of potentially conflicting alternatives when it comes to initiating physical activity or exercise.
Muscle quality defined as the ratio of muscle strength to muscle mass disregards underlying factors which influence muscle strength. The aim of this review was to investigate the relationship of phase angle (PhA), echo intensity (EI), muscular adipose tissue (MAT), muscle fiber type, fascicle pennation angle (θf), fascicle length (lf), muscle oxidative capacity, insulin sensitivity (IS), neuromuscular activation, and motor unit to muscle strength. PubMed search was performed in 2021. The inclusion criteria were: (i) original research, (ii) human participants, (iii) adults (≥18 years). Exclusion criteria were: (i) no full-text, (ii) non-English or -German language, (iii) pathologies. Forty-one studies were identified. Nine studies found a weak–moderate negative (range r: [−0.26]–[−0.656], p < 0.05) correlation between muscle strength and EI. Four studies found a weak–moderate positive correlation (range r: 0.177–0.696, p < 0.05) between muscle strength and PhA. Two studies found a moderate-strong negative correlation (range r: [−0.446]–[−0.87], p < 0.05) between muscle strength and MAT. Two studies found a weak-strong positive correlation (range r: 0.28–0.907, p < 0.05) between θf and muscle strength. Muscle oxidative capacity was found to be a predictor of muscle strength. This review highlights that the current definition of muscle quality should be expanded upon as to encompass all possible factors of muscle quality.