scholarly journals HRV‐Monitoring im Rahmen eines vierwöchigen High‐Intensity Intervalltrainings

2020 ◽  
Author(s):  
Christoph Schneider
Keyword(s):  
High Intensity ◽  
Cohen’S D ◽  
Allen Test ◽  
Cohen's D

EINLEITUNG. Das Monitoring von Belastungs‐ und Erholungsreaktionen im Sport gilt mittlerweile als zentralesInstrument im Prozess der Optimierung und Individualisierung von Trainingsmaßnahmen. Die Messungder Herzfrequenz (HR) ‐variabilität (HRV) stellt hier ein vielversprechendes Monitoringtool dar,welches einen Einblick in Aktivität und Regulationsmechanismen des kardial‐autonomen Nervensystems(ANS) liefert. Ziel der Studie ist die Evaluation eines HRV‐Monitorings im Rahmen eines vierwöchigenHigh‐Intensity Intervalltrainings (HIT) hinsichtlich der Fähigkeit Belastungs‐ und Erholungsreaktionensowie Leistungsveränderungen abzubilden.METHODIK. 12 trainierte Probanden aus intermittierenden Sportarten absolvierten einen 4‐wöchigen,periodisierten HIT‐Zyklus mit jeweils 3 Trainingseinheiten pro Woche. Die maximale und submaximaleLeistungsfähigkeit wurde mittels Stufentests auf dem Laufband vor (Baseline) sowie zwei (Post 1) undneun Tage (Post 2) nach der Interventionsphase ermittelt. Der allgemeine Erholungsstatus (KEB) wurdean allen Test‐ und Trainingstagen erfragt. Begleitend, sowie zwei Wochen vor und nach der Intervention,wurden täglich 6‐minütige HRV‐Ruhemessungen nach dem Aufstehen durchgeführt und anschließendmittels gleitendem 7 Tage‐Mittelwert analysiert.ERGEBNISSE. Das Training löste moderate bis starke (Cohen’s d = ‐1,12 bis ‐1,25) Ermüdungserscheinungen(KEB) in den Interventionswochen 1 und 3 (likely bis most likely) aus. Die maximale Leistungsfähigkeitzeigte klare Verbesserungen (d = 0,20 bis 0,41) an Post 1 und Post 2 (likely bis most likely), wobei diesubmaximale Leistungsfähigkeit tendenziell (possibly) an Post 2 gering (d = 0,21 bis 0,23) erhöht war. DerHRV‐Parameter Ln rMSSD/RR war an Post 2 gering (d = ‐0,40) verringert (likely). Die drei Einzelfallanalysenzeigten erheblich divergierende ANS‐Reaktionen bei den betrachteten Athleten, welche sich vergleichbarüberdurchschnittlich in ihrer submaximalen und maximalen Leistungsfähigkeit verbesserten.SCHLUSSFOLGERUNG. Ein HRV‐Monitoring auf Grundlage täglicher Ruhemessungen und gleitender 7 Tage‐Mittelwertsbildung ist auf Gruppenebene nicht in der Lage die beobachteten Belastungs‐ und Erholungsreaktionenoder die Leistungsverbesserungen abzubilden. Im Rahmen von Einzelfallanalysenscheint die HRV potenziell nützliche Informationen hinsichtlich individueller Adaptationsverläufen liefernzu können, welche möglicherweise eine Individualisierung und Optimierung von Trainingsplanungund ‐steuerung ermöglichen. Dennoch stehen Aufwand und Nutzen, sowohl auf Gruppen‐ als auch aufEinzelfallebene, in einem deutlichen Defizitverhältnis. Ein HRV‐Monitoring ist derzeit unter Anwendungder etablierten Methoden in vergleichbaren Settings nicht empfehlenswert.

Effects of 22 °C muscle temperature on voluntary and evoked muscle properties during and after high-intensity exercise

2007 ◽  
Vol 32 (6) ◽  
pp. 1043-1051 ◽  
Author(s):  
Eric J. Drinkwater ◽  
David G. Behm
Keyword(s):  
High Intensity ◽  
Repeated Measures ◽  
Muscle Activation ◽  
Contractile Properties ◽  
Muscle Temperature ◽  
Plantar Flexors ◽  
Muscle Properties ◽  
Time To Peak ◽  
Cohen’S D ◽  
Cohen's D

The purpose of this study was to investigate the effect of 22 °C local muscle temperature of intact human plantar flexors performing fatiguing contractions on evoked and voluntary contractile properties before and after fatigue. Twelve subjects were tested on plantar flexor voluntary torque, percent muscle activation derived from twitch interpolation, integrated electromyographic (iEMG) activity, and evoked torque and temporal characteristics of maximal twitch and tetanic stimulations before fatigue and 1, 5, and 10 min after intermittent, high-intensity, isometric fatigue under both normothermic and hypothermic conditions. Hypothermic and normothermic changes between time points were analysed by repeated-measures analysis of variance. Normothermic fatigue induced small to large effects (Cohen’s d: 0.29–3.06) on voluntary and evoked contractile properties, whereas most effects of unfatigued hypothermia were limited to rate-dependent processes (Cohen’s d: 0.78–1.70). Most tetanic properties were potentiated 1 min after normothermic fatigue, but remained unchanged by hypothermic fatigue, resulting in significant differences between the two conditions. Soleus iEMG significantly declined 1 min after normothermic fatigue (–29%), but not after hypothermic fatigue. Twitch torque was potentiated by 29% one minute after fatigue while normothermic, but was potentiated by 46% while hypothermic; rate of twitch torque development and time to peak twitch were potentiated by 39% and 10% while normothermic, but 89% and 28% while hypothermic. Although voluntary contractile properties are generally impaired soon after normothermic fatigue, most were not after hypothermic fatigue. Furthermore, evoked contractile properties were generally higher 1 min after hypothermic fatigue. We conclude that the hypothermic condition slows the recovery of potentiated evoked contractile properties back to baseline values.

scholarly journals Physical Demands in Three Different Basketball Competitions Played By the Same Under-18 Players

2021 ◽  
Vol 10 (2) ◽  
pp. 59-64
Author(s):  
Hugo Salazar ◽  
◽  
Franc Garcia ◽  
Luka Svilar ◽  
Julen Castellano ◽  
...  
Keyword(s):  
Confidence Intervals ◽  
Effect Size ◽  
High Intensity ◽  
External Load ◽  
Training Process ◽  
Physical Demands ◽  
Cohen’S D ◽  
Basketball Coaches ◽  
Cohen's D

The goal of this study was to compare the physical demands of the same team in three different basketball com- petitions (EBA league (EBA), U18 regional league (U18L), and a U18 international tournament (U18T)) during the same season. Data from eleven U18 players (age: 16.92 ± 0.67 years) were collected using inertial movement units. As external load variables, Player Load (PL), accelerations (ACC), decelerations (DEC), changes of direction (COD), and jumps (JUMP) were expressed in their total (t) and high intensity (h) values. The analysis of variances (ANOVA) and effect size (ES, Cohen’s d) with their respective 90% confidence intervals were applied to identify differences between the competitions. U18T showed the highest values in PL, tACC, tDEC, hDEC, tCOD, tJUMP, and hJUMP (small to moderate ES). However, the hACC and hCOD values were greater in EBA (small ES) than in U18L and U18T. In conclusion, all three competitions presented different external load demands for the same group of players. This data could help basketball coaches to optimize the training process based on the competition in which their team plays. Furthermore, data could also indicate the most suitable competition for players’ development.

Phonologische Verarbeitung bei Grundschulkindern mit schwacher Lesefähigkeit

2013 ◽  
Vol 2 (4) ◽  
pp. 199-215 ◽  
Author(s):  
Maria Klatte ◽  
Claudia Steinbrink ◽  
Kirstin Bergström ◽  
Thomas Lachmann
Keyword(s):  
Cohen’S D ◽  
Phonologische Verarbeitung ◽  
Cohen's D

Defizite in der phonologischen Informationsverarbeitung werden heute als Kernsymptom der Lese-Rechtschreibstörung betrachtet. In Trainingsstudien mit betroffenen Kindern erwiesen sich Phonemwahrnehmungsfähigkeiten als trainierbar, und Programme, in denen Aufgaben zur phonologischen Bewusstheit mit der systematischen Vermittlung von Phonem-Graphem-Zuordnungen kombiniert wurden, zeigten Transfereffekte auf Lese- und Rechtschreibleistungen. Ausgehend von diesen Erkenntnissen wurde ein computerbasiertes Trainingsprogramm zur Förderung der Phonemwahrnehmung, der phonologischen Bewusstheit und der Graphem-Phonem-Zuordnungen für deutschsprachige Grundschulkinder mit Lese-Rechtschreibstörung entwickelt. Aufgrund der besonderen Relevanz der Vokallänge für die deutsche Orthographie enthält das Programm neben Aufgaben, die auf Konsonanten fokussieren, auch Vokallängenaufgaben. Bei der Konzipierung des Programms wurden etablierte, ursprünglich für andere Sprachen entwickelte Aufgaben an die deutsche Phonologie angepasst und in ein computerbasiertes Format übersetzt. Im Rahmen der vorliegenden Studie sollte überprüft werden, ob die konstruierten Trainingsaufgaben die spezifischen Defizite von Kindern mit Lese-Rechtschreibstörung wie intendiert abbilden. Hierzu wurden leseschwache Dritt- und Viertklässler (n = 35) mit mindestens durchschnittlichen Lesern derselben Klassenstufen (n = 75; Kontrollgruppe) hinsichtlich ihrer Leistungen in den Aufgaben verglichen. Die leseschwachen Kinder zeigten in allen Aufgaben schlechtere Leistungen als die Kontrollgruppe. Die Effektstärken der Gruppenunterschiede (Cohen's d) lagen im mittleren bis hohen Bereich (0.50 – 2.19). Die Ergebnisse bestätigen, dass die Aufgaben des Trainingsprogramms die spezifischen Defizite leseschwacher Kinder abbilden. Ein Training mit diesen Aufgaben erscheint daher grundsätzlich sinnvoll. Die Wirkungen eines solchen Trainings auf die schriftsprachlichen Leistungen von Kindern mit Lese-Rechtschreibstörung werden in zukünftigen Studien überprüft.

Political Inclusion Reduces Political Prejudice

2019 ◽  
Author(s):  
Jan G. Voelkel ◽  
Dongning Ren ◽  
Mark John Brandt
Keyword(s):  
The Political ◽  
Political Discussion ◽  
Total N ◽  
Cohen’S D ◽  
Promising Strategy ◽  
Political Inclusion ◽  
Cohen's D ◽  
Political Divide ◽  
Scenario Study ◽  
Fair Chance

The political divide is characterized by liberals and conservatives who hold strong prejudice against each other. Here we introduce one possible strategy for reducing political prejudice: political inclusion. We define political inclusion as receiving a fair chance to voice one’s opinions in a discussion of political topics with political outgroup members. This strategy may reduce political prejudice by inducing perceptions of the political outgroup as fair and respectful; however, such a strategy may also highlight conflicting attitudes and worldviews, thereby further exacerbating prejudice. In three preregistered studies (total N = 799), we test if political inclusion reduces or increases prejudice toward the political outgroup. Specifically, political inclusion was manipulated with either an imagined scenario (Study 1) or a concurrent experience in an ostensible online political discussion (Studies 2 & 3). Across all studies, participants who were politically included by political outgroup members reported reduced prejudice toward their outgroup compared to participants in a neutral control condition (Cohen’s d [-0.27, -0.50]). This effect was mediated by perceptions of the political outgroup as fairer and less dissimilar in their worldviews. Our results indicate that political discussions that are politically inclusive do not cause additional prejudice via worldview conflict, but instead give others a feeling of being heard. It is a promising strategy to reduce political prejudice.

scholarly journals Lower Extremity Rehabilitation in Patients with Post-Stroke Sequelae through Virtual Reality Associated with Mirror Therapy

2021 ◽  
Vol 18 (5) ◽  
pp. 2654
Author(s):  
Roxana Steliana Miclaus ◽  
Nadinne Roman ◽  
Ramona Henter ◽  
Silviu Caloian
Keyword(s):  
Virtual Reality ◽  
Muscle Strength ◽  
Lower Extremity ◽  
Range Of Motion ◽  
Control Group ◽  
Mirror Therapy ◽  
Cohen’S D ◽  
Cohen's D ◽  
Experimental Group ◽  
Post Therapy

More innovative technologies are used worldwide in patient’s rehabilitation after stroke, as it represents a significant cause of disability. The majority of the studies use a single type of therapy in therapeutic protocols. We aimed to identify if the association of virtual reality (VR) therapy and mirror therapy (MT) exercises have better outcomes in lower extremity rehabilitation in post-stroke patients compared to standard physiotherapy. Fifty-nine inpatients from 76 initially identified were included in the research. One experimental group (n = 31) received VR therapy and MT, while the control group (n = 28) received standard physiotherapy. Each group performed seventy minutes of therapy per day for ten days. Statistical analysis was performed with nonparametric tests. Wilcoxon Signed-Rank test showed that both groups registered significant differences between pre-and post-therapy clinical status for the range of motion and muscle strength (p < 0.001 and Cohen’s d between 0.324 and 0.645). Motor Fugl Meyer Lower Extremity Assessment also suggested significant differences pre-and post-therapy for both groups (p < 0.05 and Cohen’s d 0.254 for the control group and 0.685 for the experimental group). Mann-Whitney results suggested that VR and MT as a therapeutic intervention have better outcomes than standard physiotherapy in range of motion (p < 0.05, Cohen’s d 0.693), muscle strength (p < 0.05, Cohen’s d 0.924), lower extremity functionality (p < 0.05, Cohen’s d 0.984) and postural balance (p < 0.05, Cohen’s d 0.936). Our research suggests that VR therapy associated with MT may successfully substitute classic physiotherapy in lower extremity rehabilitation after stroke.

Development of a multimedia intervention to improve pneumoconiosis prevention in construction workers using RE-AIM framework

2021 ◽  
Author(s):  
Jieling Chen ◽  
Cho Lee Wong ◽  
Bernard Man Hin Law ◽  
Winnie Kwok Wei So ◽  
Doris Yin Ping Leung ◽  
...  
Keyword(s):  
South Asian ◽  
Educational Intervention ◽  
Self Efficacy ◽  
Intervention Mapping ◽  
Intervention Development ◽  
Educational Interventions ◽  
Construction Workers ◽  
Post Intervention ◽  
Cohen’S D ◽  
Cohen's D

Summary Pneumoconiosis is a common occupational lung disease among construction workers. Educational interventions targeting specific ethnic groups of construction workers are of benefit for pneumoconiosis prevention. The aim of this study was to develop a multimedia educational intervention for pneumoconiosis prevention for South Asian construction workers, and to evaluate its feasibility, acceptability and effectiveness in increasing knowledge of pneumoconiosis, modifying beliefs about pneumoconiosis, and enhancing intention to implement measures for its prevention among the workers. This evaluation was performed using the Reach-Effectiveness-Adoption-Implementation-Maintenance framework. A one-group design was adopted and intervention mapping was used to guide the process of intervention development, while the Health Belief Model guided the development of intervention content. The intervention was delivered at construction sites, ethnic minority associations and South Asian community centres. Data were collected via surveys completed at pre-intervention, post-intervention and 3 months after the intervention. A total of 1002 South Asian construction workers participated in the intervention. The participants reported a moderate-to-large increase in knowledge, perceived susceptibility, perceived severity, perceived benefits, cues to action and self-efficacy (Cohen’s d: 0.37–0.89), a small reduction in perceived barriers (Cohen’s d = 0.12) and a moderate improvement in attitudes and intention to practice (Cohen’s d: 0.45, 0.51) at post-intervention. A follow-up survey of 121 participants found that the implementation of preventive measures appeared to increase. Overall, the findings demonstrate that the implementation of a culturally adapted multimedia educational intervention could be an effective approach to improving knowledge, self-efficacy and intention regarding pneumoconiosis prevention among South Asian construction workers.

scholarly journals Explainable AI enables clinical trial patient selection to retrospectively improve treatment effects in schizophrenia

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Monika S. Mellem ◽  
Matt Kollada ◽  
Jane Tiller ◽  
Thomas Lauritzen
Keyword(s):  
Clinical Trial ◽  
Patient Selection ◽  
Treatment Effect ◽  
Controlled Clinical Trial ◽  
Learning Approaches ◽  
Full Sample ◽  
Cohen’S D ◽  
Explainable Ai ◽  
Cohen's D ◽  
Analytical Approaches

Abstract Background Heterogeneity among patients’ responses to treatment is prevalent in psychiatric disorders. Personalized medicine approaches—which involve parsing patients into subgroups better indicated for a particular treatment—could therefore improve patient outcomes and serve as a powerful tool in patient selection within clinical trials. Machine learning approaches can identify patient subgroups but are often not “explainable” due to the use of complex algorithms that do not mirror clinicians’ natural decision-making processes. Methods Here we combine two analytical approaches—Personalized Advantage Index and Bayesian Rule Lists—to identify paliperidone-indicated schizophrenia patients in a way that emphasizes model explainability. We apply these approaches retrospectively to randomized, placebo-controlled clinical trial data to identify a paliperidone-indicated subgroup of schizophrenia patients who demonstrate a larger treatment effect (outcome on treatment superior than on placebo) than that of the full randomized sample as assessed with Cohen’s d. For this study, the outcome corresponded to a reduction in the Positive and Negative Syndrome Scale (PANSS) total score which measures positive (e.g., hallucinations, delusions), negative (e.g., blunted affect, emotional withdrawal), and general psychopathological (e.g., disturbance of volition, uncooperativeness) symptoms in schizophrenia. Results Using our combined explainable AI approach to identify a subgroup more responsive to paliperidone than placebo, the treatment effect increased significantly over that of the full sample (p < 0.0001 for a one-sample t-test comparing the full sample Cohen’s d = 0.82 and a generated distribution of subgroup Cohen’s d’s with mean d = 1.22, std d = 0.09). In addition, our modeling approach produces simple logical statements (if–then-else), termed a “rule list”, to ease interpretability for clinicians. A majority of the rule lists generated from cross-validation found two general psychopathology symptoms, disturbance of volition and uncooperativeness, to predict membership in the paliperidone-indicated subgroup. Conclusions These results help to technically validate our explainable AI approach to patient selection for a clinical trial by identifying a subgroup with an improved treatment effect. With these data, the explainable rule lists also suggest that paliperidone may provide an improved therapeutic benefit for the treatment of schizophrenia patients with either of the symptoms of high disturbance of volition or high uncooperativeness. Trial Registration: clincialtrials.gov identifier: NCT 00,083,668; prospectively registered May 28, 2004

scholarly journals Louisiana Geriatric Workforce Enhancement Program: Analysis of Learning Outcomes From Dementia Training

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 58-58
Author(s):  
Katherine Kirsch ◽  
Catherine Lemieux ◽  
Laura Ainsworth ◽  
Sarah Choate ◽  
Ashleigh Borgmeyer ◽  
...  
Keyword(s):  
Primary Care ◽  
Program Analysis ◽  
Training Session ◽  
Cohen’S D ◽  
Response Formats ◽  
Cohen's D ◽  
Item Knowledge ◽  
South Louisiana ◽  
Severe Shortage ◽  
Primary Care Professionals

Abstract A recent Alzheimer’s Association report noted that by year 2050, the number of Americans diagnosed with Alzheimer’s disease and related dementias (ADRD) will triple to over 15 million. The report referred to primary care as the front line for meeting this demand, yet the nation faces a severe shortage of ADRD trained, primary care professionals (PCPs). Louisiana Geriatric Workforce Enhancement Program (LA-GWEP) addresses this demand. The purpose of this study was to examine preliminary data respective to LA-GWEP effectiveness with interdisciplinary education and training seminars, primarily aimed at medical, nursing, and social work PCPs. Three seminars were conducted in south Louisiana: Seminars 1 and 2 addressed effective communication, verbal and nonverbal, among persons with ADRD and caregivers; Seminar 3 offered basic overview of dementia symptomology, stages, and behaviors. Pre- and post-training session data were collected on-site. Participants completed questionnaires that included a 10-item knowledge assessment and 20-item Dementia Attitudes Scale (DAS). These measures contained Likert response formats; higher scores indicating greater levels of ADRD knowledge, in patient and caregiver contexts. Paired sample t-tests were conducted to observe any significant pre-to-post improvement, Cohen’s d for effect size. Seminar 1 revealed no significant pre-to-post difference: t = -1.019, p = 0.320. Adjusting content from audience feedback, Seminar 2 revealed significant pre-to-post difference: t = -7.516, p &lt; .001, Cohen’s d = 1.2. Seminar 3 yielded significant improvement on DAS scores: t = -2.96, p &lt; .01, Cohen’s d = 0.34. Implications for seminars in future years of LA-GWEP are discussed.

Muscle Strength Deficit though Intact Proprioception after Lateral Ankle Sprain without Persistent Instability

2021 ◽  
Author(s):  
Adel M. Madkhali ◽  
Shibili Nuhmani
Keyword(s):  
Ankle Sprain ◽  
Peak Torque ◽  
Position Sense ◽  
Joint Position Sense ◽  
Joint Position ◽  
Lateral Ankle Sprain ◽  
Lateral Ankle ◽  
Cohen’S D ◽  
History Of ◽  
Cohen's D

Abstract Background Lateral ankle sprain is one of the most common injuries in competitive sports. Previous studies which investigated muscle strength and proprioception (joint position sense) focused on subjects who sustained ankle sprain with instability. It is also important to investigate strength deficits and proprioception in subjects with a history of ankle sprain without instability. Therefore the aim of the study is to investigate proprioception and muscle strength deficits in athletes with lateral ankle sprain. Methods Twenty-four male athletes with a history of lateral ankle sprain and 24 age-matched controls (mean age of 22.42±4.13 years, mean height of 173±5.73 cm, and mean weight of 71.20±7.55 Kg) participated in this cross-sectional study. Peak torque and peak torque ratio at speeds of 30 and 120°/s for concentric and eccentric ankle inversion/eversion were evaluated using an isokinetic dynamometer. The joint position sense of the ankle joint was evaluated using an active angle reproduction test. Result Peak torque produced was significantly less in subjects with history of ankle sprain in concentric inversion 30°/s(t(47)=4.11; p=0.000, Cohen’s d=1.29), concentric inversion 120°/s (t(47)=3.01; p=0.006, Cohen’s d=1.13), concentric eversion 30°/s (t(47)=3.85; p=0.001, Cohen’s d=1.24) and concentric eversion 120°/s (t(47)=3.15; p=0.005, Cohen’s d=1.09). At the same time there was no significant difference observed in eccentric eversion peak torque in both speed (eccentric eversion 30°/s p=0.079; eccentric eversion 120°/s p=0.867) between experimental and control group. No significant difference was found in the joint position sense in the maximal active inversion −5° position (p=0.312) and the 15° inversion position (P=0.386) between both group. Conclusion The study’s results reported a significantly less peak torque of invertors and evertors during concentric movements in athletes with history of ankle sprain. At the same time, no significant difference reported in the evertor/invertor peak torque ratio, and active joint position sense between the 2 groups.

scholarly journals Effects of moderate sleep restriction during 8-week calorie restriction on lipoprotein particles and glucose metabolism

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Joshua R Sparks ◽  
Ryan R Porter ◽  
Shawn D Youngstedt ◽  
Kimberly P Bowyer ◽  
J Larry Durstine ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Calorie Restriction ◽  
Sleep Restriction ◽  
Lipoprotein Subclass ◽  
Cohen’S D ◽  
Time Interaction ◽  
Group Time ◽  
Female Body Mass ◽  
Ad Libitum ◽  
Cohen's D

Abstract Study Objectives This study examined how glucose, glucose regulatory hormones, insulin sensitivity, and lipoprotein subclass particle concentrations and sizes change with sleep restriction during weight loss elicited by calorie restriction. Methods Overweight or obese adults were randomized into an 8-week calorie restriction intervention alone (CR, n = 12; 75% female; body mass index = 31.4 ± 2.9 kg/m2) or combined with sleep restriction (CR+SR, n = 16; 75% female; body mass index = 34.5 ± 3.1 kg/m2). Participants in both groups were given the same instructions to reduce calorie intake. Those in the CR+SR group were instructed to reduce their habitual time-in-bed by 30–90 minutes 5 days each week with 2 ad libitum sleep days. Fasting venous blood samples were collected at pre- and post-intervention. Results Differential changes were found between the two groups (p = 0.028 for group × time interaction) in glucagon concentration, which decreased in the CR group (p = 0.016) but did not change in CR+SR group. Although changes in mean HDL particle (HDL-P) size and visfatin concentration were not statistically different between groups (p = 0.066 and 0.066 for group×time interaction, respectively), mean HDL-P size decreased only in the CR+SR group (Cohen’s d = 0.50, p = 0.022); visfatin concentrations did not change significantly in either group but appeared to decrease in the CR group (Cohen’s d = 0.67, p = 0.170) but not in the CR+SR group (Cohen’s d = 0.43, p = 0.225). Conclusion These results suggest that moderate sleep restriction, despite the presence of periodic ad libitum sleep, influences lipoprotein subclass particles and glucose regulation in individuals undergoing calorie restriction. Clinical trial registration: ClinicalTrials.gov (NCT02413866, Weight Outlooks by Restriction of Diet and Sleep)

Sign in / Sign up

Export Citation Format

Share Document