swacsm presentation_10-17-12

Intermittent Pneumatic Compression May Improve Bone

Mineral Density at the Hip

Southwest Chapter 32nd Annual MeetingAmerican College of Sports Medicine

October 19th, 2012

Zakkoyya LewisFaculty Advisor: Hawley Almstedt, PhD, RD

Bone Mineral Density (BMD)

• Why BMD?

• How is BMD improved?

www.nof.org

Intermittent Pneumatic Compression (IPC)

• What is IPC?

• How could IPC help BMD?

Dahl, J, & et al J Orthop Res. (2007) 25(9):1185-1192

OUR STUDY/ METHODS

RESEARCH QUESTIONDOES AN IPC INTERVENTION INCREASE

BONE MINERAL DENSITY IN HEALTHY ADULTS?

• 10 Participants (4 Male, 6 Female)• Pre-Intervention Testing• IPC Intervention• Post-Intervention Testing

• 9 Participants (3 Male, 6 Female)

RESULTS

Table 1 Baseline Descriptive Characteristics

M=males, F=females, BMI= body mass index, MET=metabolic equivalent

RESULTSParticipants 1, 3, 4, and 6 demonstrated no change in BMD at the

nontreated hip

Figure 1: Total Hip BMD

-0.06

-0.05

-0.04

-0.03

-0.02

-0.01

0

0.01

0.02

TreatedNon-Treated

1 2 3 4 5 6 7 8 9Participant

BMD

(g/c

m2)

Table 2 Bone Mineral Density

RESULTS

†p<0.05, ‡p<0.01 significant time by treatment interaction (i.e. the follow-up values are significantly different than the baseline values in the treated vs. nontreated legs)

Wasnich, RD, & Miller, PD, J Clin Endocrinol Metab. (2000) 85:231-236

Our Study

DISCUSSIONAlbertazzi, P, Steel, SA, & Bottazzi, M, Bone. (2005) 37(5):662-668

Challis, MJ, & et al, Aust J Physiother. (2007) 53(4): 247-252

• Found and increase in BMD at the hip

• 30 post menopausal women

• IPC intervention: 2 hours/day, 24 weeks

No current injury

• Only 2 post menopausal participants

• Shorter duration

• 30 post menapausal participants

• Longer duration

• Current fracture

• No history of fracture• Mixed gender

• 10 week intervention• Found and increase in BMD in the radius after a

radial fracture• 21 participants

• IPC intervention: 20 minutes/day, 10 weeks

Challis & et alAlbertazzi & et al

CONCLUSION

The results of this preliminary investigation suggest that IPC may be osteogenic and warrants further investigation as a means to reduce outcomes of osteoporosis

ACKNOWLEDGEMENTS

• Faculty Advisor: Hawley Almstedt, PhD, RD• LMU Summer Undergraduate Research

Program • Assistants: Liam Shorrock and Daniel

Echeverry• Volunteer Research Participants