Trial reportEuropean journal of clinical nutrition2025
Bioelectrical impedance vector analysis and phase angle in response to resistance training volume reduction in older women.
Trial report in European journal of clinical nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- Novel Hypothesis on Phase Angle as a Candidate Marker Associated with Physiological Reserve in Geriatric Patients in Long-Term Care.Geriatrics (Basel, Switzerland) · 2026Article
- Effects of Multicomponent Versus Aerobic Training on Body Composition, Physical Fitness, Psychological Health, and Quality of Life in Cancer Survivors: A 24-Week Randomized Controlled Trial.Sports (Basel, Switzerland) · 2026Article
- Physical activity and health: might exercise interact with appetite control?European journal of clinical nutrition · 2025Article
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
backgroundBioelectrical impedance vector analysis (BIVA) and phase angle (PhA) are important for monitoring hydration, muscle function, and quality of life in older adults. Resistance training (RT) can counteract aging's adverse effects on cellular integrity and function.
objectiveThis study compared the effects of RT volume reduction on BIVA and PhA in physically independent older women. Sixty-seven participants (>60 years) underwent a 20-week standardized whole-body RT program (eight exercises, three sets each, 8-12 repetitions, three non-consecutive days per week in the morning). They were then randomly assigned to one of the three eight-week training conditions following the training model described above: reduced volume to one set (RV1, n = 22), two sets (RV2, n = 24), or maintained volume (MV, n = 21). Bioimpedance spectroscopy measured total body water (TBW), intracellular (ICW), and extracellular (ECW) water, BIVA, and PhA based on resistance (R), impedance (Z), reactance (Xc), and height (H). All groups showed significant increases in TBW, ICW, and ECW during the volume reduction phase (P < 0.05).
resultsR, R/H, Z, and Z/H decreased across all groups, with significant changes from the pre-conditioning phase in the RV1 and RV2 groups (P < 0.05). Xc and Xc/H increased during the pre-conditioning phase across all groups and returned to baseline during the volume reduction phase (P < 0.05). PhA increased during the pre-conditioning and was maintained during the volume reduction phase (RV1 = +0.33°, RV2 = +0.50°, MV = +0.47°; P < 0.05).
conclusionThese results suggest that reducing RT volume by up to one-third can still improve PhA, BIVA, and hydration status in older women.
Indexed as
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Registered trials
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