1.Whole-Body Phase Angle as a Marker of Cellular Health in a Workplace Lifestyle Intervention
Mohd Nahar Azmi Bin Mohamed ; Nurul Zfarina Binti Mohd Zaid
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):57-
Introduction:
Phase angle (PhA) derived from bioelectrical impedance
analysis reflects cellular integrity and has emerged as a
potential marker of metabolic health. Its role in detecting
early physiological changes during lifestyle intervention
remains underexplored in workplace obesity programmes.
Methodology:
This longitudinal study included 30 adults with complete
paired measurements enrolled in a 12-month workplace
lifestyle programme. Body composition was assessed
using multifrequency bioelectrical impedance analysis.
Measurements included whole-body PhA, body cell mass
(BCM), skeletal muscle index (SMI), and extracellular
water to total body water ratio. Paired comparisons and
correlation analyses were performed.
Results:
Mean PhA increased modestly from 5.59 ± 0.70° to 5.67 ±
0.69°, although this did not reach statistical significance (p
= 0.17). Changes in PhA were not significantly associated
with changes in BCM (r = −0.03, p = 0.89). However, baseline
PhA demonstrated a moderate positive association with
SMI (r ≈ 0.51, p <0.01), suggesting a link between cellular
integrity and muscle status. Individual trajectories revealed
heterogeneous responses despite minimal weight change.
Conclusion
Whole-body phase angle provides insight into cellular
health beyond conventional anthropometric measures.
While short-term changes were modest, PhA may serve
as a clinically useful adjunct for monitoring physiological
response in obesity management programmes.
Workplace
2.Integrating Body Composition and Biochemical Markers for Metabolic Risk Stratification in Lifestyle Intervention
Mohd Nahar Azmi Bin Mohamed ; Nor Zurina Zainol ; Ng Ai Kah
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):57-58
Introduction:
Obesity is a heterogeneous metabolic disease in which
individuals with similar body weight may exhibit
markedly different physiological risk profiles. Conventional monitoring using weight alone may fail to capture
underlying metabolic and cellular changes during
lifestyle intervention. Integrating body composition and
biochemical markers may improve risk stratification in
clinical practice.
Methodology:
A prospective observational analysis was conducted among
participants enrolled in a structured lifestyle programme.
Baseline and follow-up assessments included biochemical
markers (fasting glucose, renal function, lipid profile, and
liver enzymes) alongside body composition parameters
derived from bioelectrical impedance analysis, including
percent body fat, visceral fat area, skeletal muscle index
(SMI), and phase angle (PhA). Changes over time and
associations between metabolic and body composition
variables were analyzed.
Results:
Metabolic responses varied substantially despite similar
anthropometric profiles. Renal function improved significantly, with increased estimated glomerular filtration rate
(eGFR) observed over time (p = 0.01), and was inversely
associated with fasting glucose (r = −0.41, p <0.01). Lipid
abnormalities persisted, although reductions in lowdensity lipoprotein cholesterol were noted (p = 0.04). Total
cholesterol remained elevated and correlated positively
with fasting glucose (r = 0.36, p = 0.02). Improvements
in aspartate aminotransferase were observed (p = 0.03),
while other liver markers remained stable. Notably,
body composition parameters, including PhA and SMI,
demonstrated variability independent of weight change,
reflecting heterogeneous physiological adaptation.
Conclusion
Metabolic and physiological responses to lifestyle
intervention are heterogeneous and not fully captured
by changes in body weight alone. The integration of
bioimpedance-derived parameters with biochemical
markers provides a more comprehensive approach
to metabolic risk stratification and may support more
personalized clinical management in obesity care.
Biomarkers
;
Risk Assessment
;
Body Composition
3.Beyond Body Weight: Body Composition and Cellular Health in a Workplace Obesity Intervention Programme
Mohd Nahar Azmi Bin Mohamed ; Nurul Zfarina Binti Mohd Zaid
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):58-
Introduction:
Obesity is a chronic disease characterized by complex
alterations in body composition and metabolic health. Traditional reliance on body weight may overlook important
physiological adaptations during lifestyle intervention.
Methodology:
A cohort of 99 participants at programme entry underwent
body composition assessment using bioelectrical impedance analysis. Parameters included percent body fat (PBF),
visceral fat area (VFA), skeletal muscle index (SMI), and
phase angle (PhA). Correlation analyses were performed to
explore relationships between adiposity, muscle mass, and
cellular health.
Results:
Participants demonstrated elevated adiposity (PBF 38.9 ±
8.9%; VFA 142.9 ± 56.1 cm²). PhA was inversely associated
with VFA (r ≈ −0.23, p <0.05) and positively associated with
SMI (r ≈ 0.49, p <0.001). Notably, a subset of overweight
individuals exhibited relatively preserved PhA, indicating
heterogeneity in metabolic health despite similar adiposity
levels.
Conclusion
Body composition and PhA provide complementary
insights into metabolic health beyond body weight. These
findings support the role of bioimpedance-derived parameters in identifying metabolic heterogeneity and guiding
personalized obesity management.
Body Composition
;
Body Weight
;
Workplace
;
Obesity
4.A Rare Presentation of Probable Training-Related Chronic Myopericarditis in an Endurance Cyclist: A Case Report
Azwan Aziz MOHAMAD ; Nahar Azmi MOHAMED
Korean Journal of Family Medicine 2024;45(2):116-120
We report a rare case of high-volume training-related myopericarditis. A male, 18 years old, elite road bicycle racing cyclist with high-volume training of 1,000 km per week for >7 years, presented with progressively worsening exertional breathlessness, reduced effort tolerance, and one episode of cardiac syncope. The symptoms were present prior to the coronavirus disease 2019 pandemic but made worse with the sudden increase in the volume of training after lockdown periods in preparation for competition. He exhibited multiple premature ventricular ectopic beats during his resting electrocardiogram, with a normal echocardiogram and non-elevated cardiac enzyme. The exercise stress test revealed similar multiple premature ventricular beats, warranting further investigation using cardiac magnetic resonance imaging (MRI). The findings of the cardiac MRI were suggestive of myopericarditis. He was instructed to refrain from training and initially started with a short course of colchicine. However, his symptoms deteriorated, and cardiac MRI revealed a decrease in the left ventricular ejection fraction from 59% to 50%. His treatment was escalated to a short course of tapered dose steroid, anti-failure medication and gradual, supervised, return to sports program. This case report highlights the discussion of return to play in athletes with myopericarditis.
5.Risk analysis of musculoskeletal pain intervention using corticosteroid during COVID-19 pandemic:a cohort study
Azwan Aziz MOHAMAD ; Nahar Azmi MOHAMED
The Korean Journal of Pain 2023;36(1):106-112
Background:
Most international bodies recommended against musculoskeletal steroid injection during the COVID-19 pandemic, fearing that the immunosuppressive effects of the steroid could worsen COVID-19 infection, thus prolonging the suffering of patients with severe musculoskeletal disease. The authors’ aim is to analyze the risk of COVID-19 infection after musculoskeletal injections.
Methods:
This is a retrospective study of patients who visited a sports medicine clinic and received musculoskeletal steroid injections between January 1, 2020 and February 28, 2021. The collected data was compared with the national COVID-19 registry to identify positive COVID-19 patients. The patients were only considered positive for COVID-19 following corticosteroid injection within 3 months after injection.
Results:
Out of 502 steroid injections; 79.7% (n = 400) received a single injection in one day, 19.1% (n = 96) received steroid injections at 2 sites in one day, and 1.2% (n = 6) received steroid injections at 3 sites in one day. Using the Fisherʼs exact test, there was no statistically significant association of COVID-19 infection between the steroid group and control group (relative risk, 1.44; 95% confidence interval, 0.9–23.1, P = 0.654). Only one patient contracted mild COVID-19 with no post COVID complications.
Conclusions
The authors recommend the use of musculoskeletal steroid injections in clinically indicated situation without having increased risk of COVID-19.
6.THE ROLE OF OFFICE-BASED NEEDLE ARTHROSCOPY IN THE DIAGNOSIS OF INTRA-ARTICULAR KNEE SYMPTOMS: A CASE REPORT
Muhammad Sophee Abdul Gani ; Kamarul Hashimy Hussein ; Shamsul Iskandar Hussein ; Nahar Azmi Mohamed
Journal of University of Malaya Medical Centre 2023;26(1):27-31
Anterior cruciate ligament (ACL) tears are serious knee injuries, whether partial or total. ACL injuries are most typically diagnosed in the clinic settings using a combination of a detailed history, physical examination and corroborated with an appropriate imaging modality. Magnetic resonance imaging (MRI) is highly sensitive for identifying intra-articular knee pathology. This combination has been demonstrated to be effective and non-invasive in diagnosing ACL injury. The reliability of MRI for diagnostic purposes, on the other hand, is not always ideal. This might be due to various factors, including low-quality MRI magnets, post-surgical tissue changes, metallic artifacts, patient movement during procedure, and static rather than dynamic structural evaluation. Nevertheless, office-based diagnostic arthroscopy offers an alternative to imaging modalities by allowing clinicians to visualize large joints safely, painless, high-quality images, and time-efficient approaches. Furthermore, the risk of major and minor complications of office-based diagnostic arthroscopy is comparable to or lower than any standard office-based injection. This is the first office-based needle arthroscopy (OBNA) performed in Malaysia to evaluate intra-articular knee symptoms. Thus, we aim to understand and overview OBNA to identify intra-articular knee pathology by reporting this case report.
Anterior Cruciate Ligament Injuries


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