NDLI: Impact of body fat, body water content, and skeletal muscle mass index on peak salivary lactate levels after squat jump exercise in healthy non-athlete adult males

Content Provider	Springer Nature : BioMed Central
Author	Okano, Satomi Nishizawa, Hitomi Yui, Joya Nakamura, Akinori
Abstract	Background In the rehabilitation and sports science fields, comprehensive assessment of the response to exercise is important for accurately prescribing exercise programs. Lactate is an important energy substrate that is frequently measured in clinical practice because it provides information on aerobic capacity. Salivary lactate, which can be measured non-invasively, has recently been focused on as an alternative to blood lactate. This study aimed to determine the combined effects of body fat, body water content, and skeletal muscle mass index on peak salivary lactate levels. Methods Thirty-seven non-athletic males performed a squat jump exercise. Their salivary lactate levels were measured before, immediately after, and every 5 min after the exercise using a simplified device. We also assessed body composition. A linear multiple regression analysis was performed with peak salivary lactate levels as the dependent variable and body fat ratio, body water content, and the skeletal muscle mass index as independent variables. Results The participants’ body fat ratio (positive effect; p = 0.001) and body water content (negative effect; p = 0.035) significantly affected peak salivary lactate levels. Skeletal muscle mass index tended to positively influence salivary lactate levels (p = 0.099), albeit not significantly. The adjusted R-squared value of the model was 0.312 (p = 0.001). Conclusions The combined effect of body fat, body water content, and skeletal muscle mass index on peak salivary lactate levels was 31.2%. Better nutritional guidance may be effective in promoting weight loss and increasing body water content to improve aerobic capacity in the rehabilitation setting.
Related Links	https://bmcsportsscimedrehabil.biomedcentral.com/counter/pdf/10.1186/s13102-022-00482-6.pdf
Ending Page	6
Page Count	6
Starting Page	1
File Format	HTM / HTML
ISSN	20521847
DOI	10.1186/s13102-022-00482-6
Journal	BMC Sports Science, Medicine and Rehabilitation
Issue Number	1
Volume Number	14
Language	English
Publisher	BioMed Central
Publisher Date	2022-05-20
Access Restriction	Open
Subject Keyword	BMC Sports Science Medicine and Rehabilitation Sports Medicine Orthopedics Rehabilitation Medicine Saliva Lactate Anthropometric characteristics Squat jump Non-invasive Rehabilitation
Content Type	Text
Resource Type	Article
Subject	Physical Therapy, Sports Therapy and Rehabilitation Rehabilitation Orthopedics and Sports Medicine
Journal Impact Factor	2.1/2023
5-Year Journal Impact Factor	2.3/2023

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