Lin et al. (2015) — WBV and Body Composition in Mice: Study Summary

Study Details

Study: Effect of whole-body vibration training on body composition, exercise performance and biochemical responses in middle-aged mice

Authors: Lin CI, Huang WC, Chen WC, Kan NW, Wei L, Chiu YS, Huang CC

Institution: Kainan University; National Taiwan Sport University; Chang Gung University of Science and Technology; Taipei Medical University

Journal: Metabolism Clinical and Experimental (Elsevier)

Year: 2015

DOI: 10.1016/j.metabol.2015.05.007

Study type: Randomised controlled trial — animal study

Population: Male C57BL/6 mice aged 15 months (middle-aged), divided into sedentary control (SC), low-frequency WBV (LV: 5.6 Hz, 2 mm, 0.13 g), and high-frequency WBV (HV: 13 Hz, 2 mm, 0.68 g)

Plain-English Summary

Researchers investigated the effects of 4 weeks of whole-body vibration (WBV) training at two different frequencies on body composition, exercise performance, and biochemical responses in middle-aged mice. Mice in the WBV groups were vibrated for 15 minutes per day, 5 days per week for 4 weeks.

High-frequency WBV (13 Hz) significantly increased relative muscle weight and brown adipose tissue weight compared to sedentary controls, while relative liver weight was reduced. Both WBV groups showed dose-dependent improvements in forelimb grip strength, aerobic endurance, and core temperature. Serum lactate, ammonia, and creatine kinase (CK) levels decreased with increasing vibration frequency — suggesting reduced physical fatigue and less exercise-induced muscle damage.

What Researchers Examined

• Body composition (muscle, brown adipose tissue, liver, epididymal fat pad weights)
• Forelimb grip strength
• Swimming endurance (exhaustive swimming test)
• Core temperature
• Serum lactate, ammonia, glucose, and creatine kinase (CK) after 15-min swimming exercise
• Biochemical variables (ALP, ALT, AST, BUN, LDH, TC, TG, TP)

Key Findings

High-frequency WBV (13 Hz, 0.68 g) for 4 weeks resulted in significantly higher relative muscle weight and brown adipose tissue weight compared to sedentary controls. Low-frequency WBV (5.6 Hz, 0.13 g) showed intermediate but positive effects. Both frequencies improved grip strength, aerobic endurance, and core temperature in a dose-dependent manner. Serum lactate, ammonia, and CK levels — markers of fatigue and muscle damage — were significantly lower in the high-frequency WBV group after swimming exercise.

Methodology Notes

This is an animal study. Findings from mouse research cannot be directly applied to humans. The study provides mechanistic evidence that WBV at sufficient frequency and amplitude can stimulate musculoskeletal and physiological adaptations in mammalian tissue.

Dose-response relationship: The study found dose-dependent effects — higher vibration frequency produced greater improvements in body composition, strength, and fatigue markers — which is informative for understanding the frequency-amplitude relationship in WBV.

Aging context: The use of 15-month-old male mice approximates a middle-aged to older adult biological state, making this more relevant to aging research than studies in young animals.

Full Citation

Lin CI, Huang WC, Chen WC, Kan NW, Wei L, Chiu YS, Huang CC. (2015). Effect of whole-body vibration training on body composition, exercise performance and biochemical responses in middle-aged mice. Metabolism, 64(9), 1146–1156. https://doi.org/10.1016/j.metabol.2015.05.007

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