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OFF-SEASON TO PRE-SEASON: LOWER BODY MASS CHANGES IN MEN’S COLLEGE BASKETBALL PLAYERS

Abstract

Garrison R. Collier1, Poonam N. Patel1, Jeremy T. Barnes1, Jason D. Wagganer1, FACSM, & Monica L. Kearney1

1Southeast Missouri State University, Cape Girardeau, Missouri

PURPOSE: Muscular strength and increased muscle mass, particularly in the legs, is a key training target for collegiate basketball athletes to enhance sport related power and performance. Typically, strength and hypertrophy training are a main focus during the off-season, providing a window to assess changes in body composition. Thus, the purpose of this study was to evaluate changes in Total Body Mass (TBM), Total Lean Body Mass (TLBM), Leg Lean Mass (LLM, combination of both legs), and total Bone Mineral Content (BMC) in collegiate men’s basketball players from off-season (PRE) to the beginning of pre-season (POST) training. METHODS: Male division 1 basketball athletes [n=14, age 20 (2) yrs., height 76.64 (3.85) inches, body mass 87.4 (15.5) kg, BMI 22.9 (2.8) kg/m2, % Body Fat 13.77 (3.84)] completed testing using Dual Energy X-Ray Absorptiometry (DXA) in a rested state for both PRE and POST conditions. Paired samples t-tests, with two-tailed significance set at p < 0.05, compared TBM, TLBM, LLM, and BMC between the two time points. RESULTS: Significant changes in TBM (PRE = 192.72 (9.15) lbs, POST 195.32 (8.61) lbs), LLM (PRE = 55.10 (2.49) lbs, POST 55.87 (2.35) lbs), and BMC (PRE = 9.11 (.29) g·cm-2, POST 9.22 (.28) g·cm-2 were found, with no change in TLBM (PRE = 157.93 (7.21) lbs, POST 159.24 (6.57) lbs) or BF (PRE = 13.77 (1.02) %, POST 14.19 (.89) %). CONCLUSIONS: LLM increased despite no change in TLBM, suggesting that changes in the lean mass of the legs is more pronounced than whole body lean mass due to training focus during a typical ‘off-season’ for basketball players. Total BMC also improved between time points, and future studies should examine if the change in BMC is driven by region-specific bone, or if changes occur throughout the skeletal system during off-season training.

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