The Scottish Sports Alliance (SSA), which represents sports governing bodies, wants to see more investment to increase PE and school sports, provide more local coaches and volunteers, ensure better use of and access to existing facilities, and support athletes at competitions.
Giving evidence to the Finance Committee, SSA policy director Kim Atkinson said the benefits of physical activity should be given "more prominence".
She said that, excluding Commonwealth Games spending, sport had been allocated £36.5 million in the 2014/15 draft Budget, although it also receives funding via local authority, health and justice budgets.
Ms Atkinson said: "It is estimated that increasing physical activity levels by 1% each year for five years would save 157 lives per year, with a positive economic impact of £85 million."
Meanwhile, she said research showed 2,447 people still die prematurely each year in Scotland due to physical inactivity.
Ms Atkinson went on to emphasise the scale and financial burden of the country's health problems, along with the "significant contribution" that sport can make to lessening these, such as the cost of obesity, hip fractures and diabetes.
She said: "I think in broad terms the sport budget has remained fairly static.
"We've made some statements around working more closely with health - I want to be very clear we've no intention of trying to raid their budgets - it is about working in partnership."