Cardiovascular and metabolic costs of forward, backward, and lateral motion
Williford, H.N.; Olson, M.S.; Gauger, S.; Duey, W.J.; Blessing, D.L.
Medicine and Science in Sports and Exercise 30(9): 1419-1423
1998
ISSN/ISBN: 0195-9131 PMID: 9741611 Document Number: 495745
Purpose: The purpose of this study was to compare the metabolic and cardiovascular responses of movement in forward (FM), backward (BM), and lateral (LM) directions. Methods: Thirteen athletes with the following characteristics (mean +- SD) were evaluated: age 21 +- 3 yr, height 172.0 +- 9.0 cm, weight 62.92 +- 9.05 kg, and VO2max 54.13 +- 7.42 mLcntdotkg-1cntdotmin-1. Subjects were evaluated at 80.45 and 134.08 mcntdotmin-1. A repeated measures ANOVA was used for statistical analysis (P < 0.05). Results: At 80.45 mcntdotmin-1, the following respective VO2 mLcntdotkg-1cntdotmin-1 and heartrate (HR) beatscntdotmin-1 responses were: FM = 12.42 +- 2.29,113 +- 10; BM = 15.95 +- 2.45,132 +- 16; and LM = 22.10 +- 4.76, 140 +- 15. Both VO2 and HR were significantly different between conditions: LM > BM > FM. At 134.08 mcntdotmin-1, the following respective VO2 and HR responses were: FM = 27.15 +- 2.51, 146 +- 7; BM = 31.33 +- 5.77, 168 +- 11; and LM = 32.58 +- 5.74,169 +- 10. At 134.08 mcntdotmin-1 neither HR or VO2 were significantly different between LM or BM (LM, BM, > FM). Stride length and stride frequency were also significantly different between conditions. These results indicate the variation in the energy cost of FM, BM, and LM.