Peer-reviewed veterinary case report
How exercise affects bodyweight and size in dogs
By Söder, Josefin et al.·Published in BMC veterinary research·2024·Department of Clinical Sciences·View original on PubMed →
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Original publication title: Effects of a physical exercise programme on bodyweight, body condition score and chest, abdominal and thigh circumferences in dogs.
- Species:
- dog
Plain-English summary
A group of 21 healthy dogs participated in an eight-week exercise program that included jogging and strength exercises with their owners. After the program, the dogs showed a decrease in body condition score, meaning they became leaner, and their chest and abdominal measurements also shrank. Interestingly, while their body weight stayed the same, the thigh circumference increased, suggesting a gain in muscle mass. This study highlights that regular exercise can help improve body composition in dogs, making them healthier overall.
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Abstract
BACKGROUND: Research on the effects of physical exercise on canine body composition is limited. The aim of this study was to investigate the effects of a physical exercise programme on bodyweight, body condition score (BCS) and chest, abdominal and thigh circumferences in dogs. Twenty-one healthy dogs of different breeds exercised together with their owners during an eight-week programme consisting of jogging and strength exercises. Standardised measurements were performed in triplicates with a measuring tape on standing dogs. Chest circumference was measured at three anatomical locations, abdomen at two and thigh at one. Data on bodyweight, BCS (9-point scale) and circumferences were analysed with mixed model repeated measures analyses to evaluate changes after the programme and effects of target distance. RESULTS: Seven dog owners choose a target distance of 2 km and 14 owners choose 5-10 km. Mean BCS decreased (P = 0.007) after the programme (5.1 ± 0.9 vs. 4.7 ± 0.6) but there was no effect of target distance. Almost all chest and abdominal circumference measurements decreased (P ≤ 0.007) with the 2 km group driving the reduction in chest circumference and the 5-10 km group driving the reduction in abdominal circumference. In contrast, thigh circumference (28.8 ± 0.4 vs. 30.2 ± 0.4) increased (P = 0.007) while bodyweight was maintained. There were positive correlations between BCS and abdominal/chest ratios before and after the programme (Pearson correlation; R square ≤ 0.43, P ≤ 0.0012) but the mean ratio remained constant. CONCLUSIONS: Results indicated a redistribution between total body fat and muscle mass in body composition of normal weight to slightly overweight dogs after the physical exercise programme. The use of bodyweight alone was not a reliable evaluation method to complement the BCS assessment. However, repeated measurements of chest, abdominal and thigh circumference might aid in the assessment of body composition in dogs performing physical exercise. Further research should include a control group and objective evaluations of total body fat and lean mass, in order to investigate the effectiveness of physical exercise as a freestanding method for decreasing BCS and increasing muscle mass in overweight dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/38971722/